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777dffe8ff8d52d7eb7894deab386c816a48f80f
UnrealEngineUWP/Engine/Source/Editor/BlueprintGraph/Private/K2Node_CallFunction.cpp
Dan Oconnor e29126385f Copying //UE4/Dev-Framework to //UE4/Dev-Main (Source: //UE4/Dev-Framework @ 3380068) 
#lockdown Nick.Penwarden

==========================
MAJOR FEATURES + CHANGES
==========================

Change 3358702 on 2017/03/22 by Marc.Audy

	Always mark child actors pending kill when in PostLoad as often the World is too early to have a WorldContext which causes issues in DestroyActor
	#jira UE-42679

Change 3358737 on 2017/03/22 by Mieszko.Zielinski

	Exposed UBrainComponent::IsRunning() and UBrainComponent::IsPaused() to Blueprint #UE4

Change 3359062 on 2017/03/22 by Michael.Noland

	Blueprints: Show the Save and Find in CB buttons when working with level script blueprints (they will save/show the map package)

	#jira UE-30748

Change 3359066 on 2017/03/22 by Michael.Noland

	PR #3348: Make fields of FAttributeMetaData editable (Contributed by hoelzl)

	#jira UE-42620

Change 3359069 on 2017/03/22 by Michael.Noland

	PR #3288: InverseLerp Blueprint Tooltips Clarification (Contributed by wunawuna)

	#jira UE-42250

Change 3359108 on 2017/03/22 by Michael.Noland

	Blueprints: Fix an issue where running the editor in a different culture could break pins on nodes that have optional arrays of pins (e.g., animation graph nodes like blend by layer)
	#jira UE-36232

Change 3359235 on 2017/03/22 by Marc.Audy

	Expose bShouldPerformFullTickWhenPaused to blueprints and details panel
	#jira UE-17286

Change 3359324 on 2017/03/22 by Zak.Middleton

	#ue4 - (Merge) Disable collision on NavModifierVolumes. Previously they had an OverlapAll response and generated overlap events. They are only supposed to be used for preventing nav mesh generation, but overlap events could affect gameplay, and also are bad for performance.

	(Integrate CL 3249525 from Odin).

Change 3359326 on 2017/03/22 by Zak.Middleton

	#ue4 - (Merge) Optimization during attachment to check bool before expensive casts and body instance fetching.

	(Integrate CL 3261262 from Odin).

Change 3359327 on 2017/03/22 by Zak.Middleton

	#ue4 - (Merge) Make bSkipAgentHeightCheckWhenPickingNavData actually ignore height when picking data.

	(Integrate CL 3231908 from Odin)

Change 3359328 on 2017/03/22 by Zak.Middleton

	#ue4 - (Merge) Make a static FName in UMovementComponent::OverlapTest const and move it to a namespace.

	(Integrate CL 3259985 from Odin)

Change 3359329 on 2017/03/22 by Zak.Middleton

	#ue4 - (Merge) Fix ProjectileMovementComponent continuing to simulate (and generate hit events) after it is deactivated during simulation. HasStoppedSimulation() should check if bIsActive is false.

	(Integrate CL 3260001 from Odin)

Change 3359330 on 2017/03/22 by Zak.Middleton

	#ue4 - (Merge) Fix accumulated forces in CharacterMovement when movement mode or activation changes.

	- Added CharacterMovementComponent::ClearAccumulatedForces()
	- AddForce() and related functions now avoid adding the force if in MovementMode "None". When ticking in "None", forces are cleared so they don't pile up until the next valid movement mode. Forces are also cleared if the updated component changes or when the capsule simulates physics.
	- CharacterMovementComponent::Deactivate() implemented to stop movement and call ClearAccumulatedForces().
	- ClearAccumulatedForces() now also clears pending launch velocity.
	- Exposed ClearAccumulatedForces() to blueprints.
	- AddForce() and AddImpulse() now also check that character movement is active (not deactivated, able to tick).
	- ApplyAccumulatedForces() does not call ClearAccumulatedForces(), since that would prevent pending launch.
	- SimulateMovement() handles pending launch and clears forces regardless of whether it's simulated proxy. Added note to investigate using ApplyAccumulatedForces() in SimulateMovement().
	- Inlined ActorComponent::IsActive().

	(Integrate CLs 3259933, 3266018 from Odin)

Change 3359338 on 2017/03/22 by Zak.Middleton

	#ue4 - (Merge) TickCharacterPose() and clear root motion before abandoning tick in UCharacterMovementComponent::PerformMovement() when movement mode is None. Prevents root motion building up until next valid movement mode.

	(Integrate CL 3271928 from Odin)

Change 3359345 on 2017/03/22 by Zak.Middleton

	#ue4 - (Merge) Fix characters sliding when landing on slanted surfaces or stairs, when aggressive "Perch" settings could cause a line trace (from the center of a capsule) instead of capsule trace and thereby screw up the floor distance checks.

	(Integrate CL 3273026 from Odin)

Change 3359381 on 2017/03/22 by Zak.Middleton

	#ue4 - (Merge) Performance tweak to ApplyRadialDamageWithFalloff(). Don't rebuild FRadialDamageEvent each loop over hit actors. Added stats for BreakHitResult()/MakeHitResult() under "stat game".

	(Integrate CLs 3275415, 3276810 from Odin).

Change 3359422 on 2017/03/22 by Zak.Middleton

	#ue4 - (Merge) Fix build (CollisionProfile included).

Change 3359442 on 2017/03/22 by Michael.Noland

	Blueprints: Prevent comment boxes from clipping the last letter of some words at the edge by increasing the padding on the wrap-at position

Change 3359445 on 2017/03/22 by Michael.Noland

	PR #2989: Improved BP comment nodes (Contributed by projectgheist)

	#jira UE-36788
	#jira UE-39118

Change 3359446 on 2017/03/22 by Zak.Middleton

	#ue4 - (Merge) Add support for FScopedMovementUpdate to be able to queue up overlaps that do not require reflexive bGenerateOverlapEvents. This allows custom inspection or processing of overlaps within a scoped move. Overlap events from the move will still only trigger in UpdateOverlaps() if bGenerateOverlapEvents is enabled on both components, as before.

	(Integrate CL 3278307 from Odin)

Change 3359494 on 2017/03/22 by Zak.Middleton

	#ue4 - (Merge) Make some data in FScopedMovementUpdate protected rather than private so it can easily be subclassed, and expose a new helper SetWorldLocationAndRotation().

	(Integrated CL 3280775 from Odin).

Change 3359506 on 2017/03/22 by Zak.Middleton

	#ue4 - (Merge) MovementComponent::Deactivate() calls StopMovement() to clear cached velocity. It's silly that reactivation many seconds or frames later would restore that velocity. Some special handling in CharacterMovement to keep it acting as before (it cleared velocity, but did not clear the path request, leaving that alone).

	(Integrate CL 3287026 from Odin).

Change 3359514 on 2017/03/22 by Zak.Middleton

	#ue4 - (Merge) Collision.ListComponentsWithResponseToProfile command includes pending kill objects.

	(Integrate CL 3293322 from Odin)

Change 3359553 on 2017/03/22 by Zak.Middleton

	#ue4 - (Merge) Optimization in CharacterMovement tick to not extract transform values twice.

	(Integrate CL 3299098 from Odin).

Change 3359554 on 2017/03/22 by Zak.Middleton

	#ue4 - (Merge) Perf: optimize UKismetMathLibrary::GetForwardVector() (converts Rotator to forward direction). This way we avoid building a matrix, and avoids 1 more SinCos call.

	(Integrate CL 3296254 from Odin).

Change 3359555 on 2017/03/22 by Zak.Middleton

	#ue4 - (Merge) Add OnComponentCollisionSettingsChangedEvent delegate to PrimitiveComponent. Fixed SkeletalMeshComponent not calling Super implementation.

	(Integrate CL 3295744 from Odin)

Change 3359561 on 2017/03/22 by Zak.Middleton

	#ue4 - (Merge) Perf: AActor::GetComponents() with generic type should *not* assume the output array needs space for the entire contents of OwnedComponents. If OwnedComponents.Num() > the array reserve size, this forces an allocation, even if few or no components of the requested type are found.

	(Integrate CL 3299111 from Odin)

Change 3359573 on 2017/03/22 by dan.reynolds

	Added BP log to the Passive Mix Modifier test platform BP

Change 3359593 on 2017/03/22 by Zak.Middleton

	#ue4 - (Merge) Perf: avoid allocations during creation in AAIController::PostInitializeComponents() (in development builds).

	(Integrate CL 3299118 from Odin)

Change 3359595 on 2017/03/22 by Zak.Middleton

	#ue4 - (Merge) Perf: HasActiveCameraComponent() and HasActivePawnControlCameraComponent() don't need to fill in an array while searching for a certain component. Also see CL 3359561, which could cause each of these functions to always cause an allocation when filling in the array when num components > 24.

	(Integrate CL 3299116 from Odin)

Change 3359602 on 2017/03/22 by Zak.Middleton

	#ue4 - (Merge) Clean up some of the new fast overlap code in PrimitiveComponent. Mostly some variable renaming, and CVar access optimization.

	(Integrate CL 3340622 from Odin)

Change 3359616 on 2017/03/22 by Zak.Middleton

	#ue4 - (Merge) Added support for bIgnoreTouches to FCollisionQueryParams. MoveComponent uses this to avoid PhysX collision queries for overlaps in GeomSweepMulti when bGenerateOverlapEvents is off.

	(Integrate CL 3340635 from Odin)

Change 3359864 on 2017/03/23 by Mieszko.Zielinski

	Added a safeguard to prevent crashes resulting from people trying to name their BB keys things longer than 1024 characters #UE4

	#jira UE-43120

Change 3360884 on 2017/03/23 by Zak.Middleton

	#ue4 - (Merge) Audio: AUDIO_MIXER_ENABLE_DEBUG_MODE turned off in Test builds. Shipping already had it off.

	(Integrate CL 3310724 from Odin)

Change 3361045 on 2017/03/23 by Zak.Middleton

	#ue4 - (Merge) Audio: new cvars to help with optimization:

	- au.DisableReverbSubmix
	- au.DisableEQSubmix
	- au.DisableParallelSourceProcessing
	- au.SetAudioChannelCount

	Also checked in some code to cut down on the amount of parameter setting in EQ

	(Integrate of CL 3303165 in Odin by Aaron.Mcleran)

Change 3361172 on 2017/03/23 by Zak.Middleton

	#ue4 - (Merge) Audio: added stat for HRTF.

	(Integrate CL 3310728 from Odin)

Change 3361189 on 2017/03/23 by Zak.Middleton

	#ue4 - (Merge) CVar to toggle HRTF for perf settings. Default is on.

	(Integrate CL 3310926 from Odin).

Change 3361914 on 2017/03/23 by Aaron.McLeran

	UE-42649 Fixing crash in cleaning up active sound in sound concurrency

	-Handling edge case of an active sound not have a sound base ptr, which is possible.

Change 3361924 on 2017/03/23 by Aaron.McLeran

	UE-41378 Fixing passive mix modifier bug

Change 3361978 on 2017/03/23 by Aaron.McLeran

	UE-42627 Fix for when audio device is removed and getting a deadlock in computing audio clock

Change 3361989 on 2017/03/23 by Aaron.McLeran

	PR #3010: Check for null GEngine on sound processing

Change 3362053 on 2017/03/23 by Zak.Middleton

	#ue4 - (Merge) Audio: Perf: Avoid thousands of Array.Add() calls during processing, which on shipping still does checks to see if the allocator has to grow, and updates ArrayCount.

	(Integrate CL 3311120 from Odin)

Change 3362102 on 2017/03/23 by Aaron.McLeran

	PR #3182:  Enabled SwitchOnEnum nodes for EAttenuationShape and EAttenuationDistanceModel

Change 3362153 on 2017/03/23 by Aaron.McLeran

	UE-43286 Oculus audio plugin not working/available

Change 3362162 on 2017/03/23 by Aaron.McLeran

	UE-42252  Frequent ensure in FLevelEditorViewportClient::UpdateAudioListener

Change 3362206 on 2017/03/23 by Aaron.McLeran

	UE-43287 Fixing HRTF spatialization in editor viewport

	- Steam Audio doesn't support multiple audio devices at the moment
	- Instead of hard-coding all audio plugins to not work in main audio device (GDC temp fix), I allow audio plugins to specify if they should be used on main audio device

Change 3362775 on 2017/03/24 by mason.seay

	Replaced deprecated node

Change 3363024 on 2017/03/24 by Ben.Zeigler

	Fix regression in behavior of streamable manager where loading both a valid and null asset used to work but now fails. Instead added a warning for that case, but if only null are requested it still fails with an error

Change 3363030 on 2017/03/24 by Zak.Middleton

	#ue4 - Lower default max sendrate for clients to 60Hz from 90Hz when net speed is high and player count is low. Throttled rate remains at 45Hz. This value has been tested in Paragon with no ill effect, and saves on bandwidth and server CPU when clients run at high framerate.

Change 3363036 on 2017/03/24 by Zak.Middleton

	#ue4 - (Merge) Audio: Perf: turned a float divide into a multiply. It happens at least 32k times per audio update.

	(Integrate CL 3311158 from Odin)

Change 3363541 on 2017/03/24 by Zak.Middleton

	#ue4 - (Merge) Audio: Perf: remove pointer indirection, and successive TArray Add()s in GetChannelMap().

	(Integrate CL 3311169 from Odin)

Change 3363642 on 2017/03/24 by Zak.Middleton

	#ue4 - (Merge) Audio: Perf: Save ~5% total audio update time. Savings in "Source Output Buffers".

	- Removed function call overhead to updating channel map. 64,000 function calls...
	- Simplified FSourceParam::Update() to reduce branching and have 1 return site.
	- Added alternative to GetChannelMap() called UpdateChannelMap() that avoids copying out values to an array. The values can then be fetched from the channel data directly.

	(Integrate CL 3311235 from Odin)

Change 3364441 on 2017/03/24 by Ben.Zeigler

	Fix issue where calling LoadLocalIniFile on a plugin file would result in an empty file. It was assuming engine/game dirs, now it instead pulls it out of GConfig if available.
	This fixes issue where iterative cooking would fail on plugin config files
	Add FindConfigFileWithBaseName to GConfig

Change 3364652 on 2017/03/25 by Phillip.Kavan

	#jira UE-43210 - Fix a runtime VM crash upon removing an element from a set after consecutive add/remove iterations.

	Change summary:
	- Fixed FScriptSet::Add() to initialize the HashIndex member of the new element when the HashSize does not change.

Change 3365609 on 2017/03/27 by Richard.Hinckley

	#jira UEDOC-4720
	Fixed global enums being dropped from documentation after being extracted by Doxygen.

Change 3365737 on 2017/03/27 by Marc.Audy

	Move setting of the ParentComponent property on an actor to PostRepNotifies instead of having a separate OnRep function.

Change 3365795 on 2017/03/27 by Marc.Audy

	Fix compile error

Change 3365894 on 2017/03/27 by Phillip.Kavan

	#jira UE-35507 - Fix for a GLEO when choosing an LSBP class as the default value for a class input pin in a non-LSBP graph.

	Change summary:
	- Modified FGraphPinFilter::IsClassAllowed() to disallow a given class if the type is contained within a map package that does not match the current graph context.

Change 3366067 on 2017/03/27 by Marc.Audy

	Add UWorld* to PostLoadMap indicating which world has been loaded. Null if an error has occurred.
	#jira UE-40228

Change 3366097 on 2017/03/27 by Marc.Audy

	Fixed missed deprecation disable pairing for PostLadMap

Change 3366170 on 2017/03/27 by Aaron.McLeran

	Fixing div by zero

Change 3366221 on 2017/03/27 by Aaron.McLeran

	UE-43240 Removing dependency on component visualizers in runtime Phonon module.

Change 3366698 on 2017/03/27 by Marc.Audy

	Fix Orion compile errors

Change 3366782 on 2017/03/27 by Aaron.McLeran

	Bringing over optimizations from Odin to Dev-framework.

	Original CL 3311435

Change 3366818 on 2017/03/27 by Aaron.McLeran

	Bringing fix from Odin to Dev-Framework from CL 3304533

	Fix for rare condition that stomps memory during source recycling.

Change 3366984 on 2017/03/27 by Michael.Noland

	Blueprints: Downgraded a warning in the connection drawing policy to verbose to suppress it. It does no good to a typical user.
	#jira UE-41638

Change 3367085 on 2017/03/27 by Brent.Pease

	 - Improve AudioMixer buffering so that only two buffers are needed instead of three, buffer submission and buffer processing are ovelapped, and a warning is issued if the audio processing thread can not keep up.
	 - Added time critical thread priority so that audio processing is not starved which would produce clicks and popping
	 - Allow the audio thread to not be created if a platform implements its own BeginGeneratingAudio() call (as happens on Android)

Change 3367434 on 2017/03/28 by Marc.Audy

	Fix UT compile error

Change 3368587 on 2017/03/28 by Mike.Beach

	Adding a "CookedOnly" plugin type (now used by the nativized Blueprint plugin).

Change 3368724 on 2017/03/28 by Zak.Middleton

	#ue4 - MovementComponent does not ignore initial blocking overlaps when moving from SafeMoveUpdatedComponent(). Set "p.MoveIgnoreFirstBlockingOverlap" back to zero and add a new flag that prevents the depenetration test from generating hit events (to prevent the problem discovered in UE-39387).

	#jira UE-41613, UE-28610

Change 3368748 on 2017/03/28 by Dan.Oconnor

	Provide &FUObjectThreadContext::Get().ObjLoaded when using the compilation manager, add validation functions for finding REINST/TRASH references

Change 3368852 on 2017/03/28 by Mike.Beach

	Fixing a CIS error before it happens - wrapping implementation in preprocessor defines to match declaration in header.

Change 3368873 on 2017/03/28 by Dan.Oconnor

	Rather than collecting script object references, just use the ScriptObjectReferences array. This allows reference replacing archives to update ScriptObjectReferences.

Change 3368998 on 2017/03/28 by Dan.Oconnor

	Setting  CLASS_Interface early in the compilation process

Change 3369494 on 2017/03/29 by Marc.Audy

	Fix UAT compile error

Change 3369924 on 2017/03/29 by Zak.Middleton

	#ue4 - Allow CharacterMovement AdjustFloorHeight() to adjust using the line trace if in penetration. Force next floor check so it will check after it depenetrates.

	#jira UE-36973

Change 3369932 on 2017/03/29 by Ben.Zeigler

	#jira UE-19494 Finish asset auditing work by allowing reading back a cooked asset registry in the editor
	Split off FAssetRegistryState as the struct to hold serialization and accessors, to allow loading multiple platform states at once.
	Optimized runtime asset registry serialization to be around 1/3 as large as before. Dependencies are disabled by default for the runtime registry, you can re-enable with bSerializeDependencies in Engine.ini
	Add FAssetPackageData which is explicitly per-package and only updated on save/load time. File size is stored in here and is computed for both editor and cooked data
	Add code to AssetManagerEditorModule to allow loading pre-cooked asset registry files and reading cooked sizes. The Asset Audit window now has a platform drop down that allows reading from cooked data
	Rename ChunkManifestGenerator to AssetRegistryGenerator and change it to directly hold an FAssetRegistryState internally
	Add new experimental AssetRegistry mode for iterative cooking. This mode is much faster as it does not need to do it's own internal dependency checking and it can be enabled with bUseAssetRegistryForIteration
	Change it so during cooking it doesn't directly load string asset references, but instead cues them for cook and uses the asset registry to find and add redirector mappings that are used during save time

Change 3370028 on 2017/03/29 by Ben.Zeigler

	CIS fix

Change 3370360 on 2017/03/29 by Mike.Beach

	Adding an extra field to FPlatformInfo; a 'UBTTarget' identifier intended to sync up with UBT's UnrealTargetPlatform enum (needed for programatically generating plugin platform whitelists).

Change 3370363 on 2017/03/29 by Ben.Zeigler

	Fix issue where loading out of date editor asset registry cache would throw pointless errors

Change 3370414 on 2017/03/29 by Marc.Audy

	Remove autos

Change 3370428 on 2017/03/29 by Ben.Zeigler

	Fix linux CIS issue, remove implicit conversion from FSavePackageResultStruct back to enum result as it was creating ambiguous operators

Change 3370453 on 2017/03/29 by Marc.Audy

	CIS fix

Change 3370548 on 2017/03/29 by Marc.Audy

	#rn Fix issues with seamless travel in PIE and shared sub levels between different parents.

Change 3370564 on 2017/03/29 by Mieszko.Zielinski

	PR #3429: fix comment typo (Contributed by kayama-shift)

Change 3370602 on 2017/03/29 by Mieszko.Zielinski

	Fixed FRecastTileGenerator::Modifiers being erroneously counted twice when stating memory #UE4

Change 3370615 on 2017/03/29 by Phillip.Kavan

	#jira UE-35515 - No longer crash when creating a new BP class from one or more selected Actors in which the root component is not Blueprint-spawnable.

	Change summary:
	- Modified FKismetEditorUtilities::AddComponentsToBlueprint() to handle deferred SceneComponent SCS node adds when the parent component was not also added (due to not being BP-spawnable).

Change 3370693 on 2017/03/29 by Michael.Noland

	Fixing some bad indentation
	#rnx

Change 3370740 on 2017/03/29 by Ben.Zeigler

	DLC/Mod Cooking fixes, the list of packages from release build as in uncooked filename format so fixed code and made this more obvious
	Fix Asset Registry to allow loading multiple source asset registries into the same state, by keeping a list of preallocated buffers

Change 3370792 on 2017/03/29 by Michael.Noland

	Blueprints: Deleted some unversioned backwards compat. code that would only matter for assets older than VER_UE4_OLDEST_LOADABLE_PACKAGE

Change 3370794 on 2017/03/29 by Michael.Noland

	PR #3190: Reduce some output logging
	- Reduced an Oculus log from Log to Verbose because it spams quite a bit
	- Corrected the spelling and the meaning of a blueprint warning when an invalid breakpoint is encountered
	- Treat UInputComponent::GetAxisValue(None) as not a warning
	- Switch FGenericSaveGameSystem::LoadGame to silently attempt to load the file, it returns success/failure and it isn't necessary to have a separate warning at the file i/o layer

	#jira UE-41446

Change 3370831 on 2017/03/29 by Dan.Oconnor

	Iteration on compilation manager
	 - Fix Skeleton class compilation order
	 - Pass ObjLoaded array to compilation manager to ensure all objects get PostLoaded
	 - Make sure data only classes get reinstanced, so that UpdateCustomPropertyListForPostConstruction is run correctly

Change 3370923 on 2017/03/29 by Michael.Noland

	Blueprints: Added an icon to indicate whether or not a macro contains latent actions
	- Note: The state of the icon is cached for performance reasons on request, with the cache being cleared when the BP containing the macro is modified or a macro graph is removed
	- This does mean that editing the inner macro of a nested macro to add/remove a latent action will not show up in visualization for the outer node until the editor is restarted or the outer macro is modified

Change 3371039 on 2017/03/29 by Dan.Oconnor

	Hacky fix for dropping return params when a function's return node is culled

Change 3371750 on 2017/03/30 by Richard.Hinckley

	Stencil write mask exposed. Adds nine new options (all bits, plus each bit individually - write on pass or depth fail). This allows stencil overlaps to be detected by mixing masks.

Change 3372513 on 2017/03/30 by Ben.Zeigler

	#jira UE-43475 Fix cooker issues with string asset references to null packages.
	Fix redirector detection to follow recursive chains, and correctly strip object class from redirected string asset references.

Change 3372565 on 2017/03/30 by Richard.Hinckley

	Rolling back stencil change, will be moved to Dev-Rendering.

Change 3372764 on 2017/03/30 by Marc.Audy

	Do not create a duplicate sub object that is not in the annotation if a sub object of the same name and class already exists.
	#jira UE-43328

	#rn Fixed cases where the blueprint of a class used as a child actor could be dirtied when compiling the owning blueprint.

Change 3372847 on 2017/03/30 by Marc.Audy

	Fix missing include

Change 3372994 on 2017/03/30 by Zak.Middleton

	#ue4 - Fix build in Debug (checkSlow using incorrect function params).

Change 3373195 on 2017/03/30 by Mike.Beach

	For nativization, changing it so we key off of the target platform-info struct instead of the platform (in preparation for defining the nativized plugin's platform whitelist).

Change 3373320 on 2017/03/30 by mason.seay

	Basic for TM-Gameplay map (WIP)

Change 3373448 on 2017/03/30 by Ben.Zeigler

	Fix recursive size display in audit window
	Improve asset manager comments

Change 3373576 on 2017/03/30 by dan.reynolds

	AEOverview Update:

	Updated Passive Mix Modifier Test based on recent changes in behavior

	Also added Initial Delay Time timer to test

Change 3373589 on 2017/03/30 by dan.reynolds

	AEOverview Passive Mix Mod Test Map update

Change 3373624 on 2017/03/30 by Zak.Middleton

	#ue4 - Increase Pawn location replication precision to 2 decimal places from 0. Prevents replicated pawns from being inside geometry by a large amount. Removed CVars controlling CharacterMovement proxy shrink amount and made those instanced properties on the component.

	#jira UE-40420

Change 3374271 on 2017/03/31 by Marc.Audy

	Fix deprecation warning in new UT code

Change 3374320 on 2017/03/31 by Marc.Audy

	Fix HTML5 compile.

Change 3374413 on 2017/03/31 by Jeff.Farris

	Added ENGINE_API to 2 functions in PlanarReflection, so projects can subclass it.

	(Copied CL 3276454 from Robo Recall to Dev-Framework)

Change 3374414 on 2017/03/31 by Jeff.Farris

	Added support for setting UNavigationSystem::bUpdateNavOctreeOnComponentChange

	(Copied CL 3267903 from RoboRecall to Dev-Framework)

Change 3374616 on 2017/03/31 by Ben.Zeigler

	Copy of Fortnite CL #3312058 to add a missing redirector. I do not understand why this is not erroring on Main, I guess my minor cook changes somehow exposed this

Change 3374664 on 2017/03/31 by Jeff.Farris

	Consted AIController::GetBrainComponent()

	(Copied 3239101 from Robo Recall to Dev-Framework)

Change 3374665 on 2017/03/31 by Jeff.Farris

	PrimitiveComponent bIgnoreRadialImpulse and bIgnoreRadialForce are now exposed to BPs. bIgnoreRadialImpulse now respected when applying impulse to relevant movement components.

	(Coped CL 3242355 from Robo Recall to Dev-Framework)

Change 3374779 on 2017/03/31 by Jeff.Farris

	Exposed SetAllPhysicsAngularVelocity to blueprints

	(Copied CL 3228390 from Robo Recall to Dev-Framework)

Change 3374792 on 2017/03/31 by Ben.Zeigler

	#jira UE-42618
	PR #3347: Improve support for FGameplayAttributeData properties in attribute sets (Contributed by hoelzl)

Change 3374844 on 2017/03/31 by Ben.Zeigler

	#jira UE-42587 Fix issue where supressed gameplay effects that granted abilities would only work the first time, it now clears out of date ability handles

Change 3374925 on 2017/03/31 by Marc.Audy

	Don't throw warning about missing world context for inactive worlds.
	#jira UE-42679

Change 3374927 on 2017/03/31 by Michael.Noland

	Editor: Added options for configuring the editor window background color and texture, which can be useful to visually distinguish the editor when switching between different branches or projects

Change 3374995 on 2017/03/31 by Michael.Noland

	Editor: Rewrote CallInEditor support and promoted it so it can be used on functions in any class, not just blueprints derived from AActor:
	- CallInEditor used on native UFUNCTION() declarations will now show up without having to make a BP subclass
	- CallInEditor can now be used as a top-level keyword in the UFUNCTION() declaration (e.g., UFUNCTION(Category=CoolCommands, CallInEditor))
	- Now shows each function as a separate button, placed in the category associated with the function
	- The button strip entry is now searchable by function name or tooltip
	- Prevented operating on functions that have parameters or return values, which would crash before
	- Removed the duplicate copies of properties placed in the Blutility section
	- Added a scoped transaction around CallInEditor execution
	- Allowed functions to be marked as CallInEditor in addition to custom events (currently we don't allow editing category or tooltip on custom events...)

	Editor: Moved Experimental/EarlyAccessPreview details customizations up to UObject so it can be used on any class, not just actors/components

	Upgrade Note: Behavior has changed so that CallInEditor can be called on CDOs as well, this will probably be walked back in a subsequent update, at least for actors and components.

Change 3375005 on 2017/03/31 by Michael.Noland

	Fixing incremental compilation error due to missing include
	#rnx

Change 3375015 on 2017/03/31 by Michael.Noland

	Fixing incremental compilation error due to missing include (for real)
	#rnx

Change 3375045 on 2017/03/31 by Marc.Audy

	Only calculate the streaming levels prefix during seamless travel if it is a PIE world
	#jira UE-43485

Change 3375053 on 2017/03/31 by Ben.Zeigler

	#jira UE-41988 Fix it so leaving PIE while gameplay debugger is active will disable HUD extensions properly, restoring ability to print messages to screen

Change 3375057 on 2017/03/31 by Ben.Zeigler

	#jira UE-39226 Don't add to DrawDebug list for player controllers with no local player

Change 3375121 on 2017/03/31 by Michael.Noland

	Added missing include for FScopedTransaction
	#rnx

Change 3375222 on 2017/03/31 by mason.seay

	Submitting work done to TM-Gameplay.  Still WIP

Change 3375308 on 2017/03/31 by Michael.Noland

	Editor: Added back CDO filtering to CallInEditor, it's too easy to explode in the BP editor.  May consider allowing opt-in behavior when we revisit Blutilities

Change 3375321 on 2017/03/31 by Ben.Zeigler

	#jira UE-39062 Fix issue where using the level editor toolbar to modify blueprints was not properly marking the blueprints as modified, so the constructor links weren't being updated until manually compiling or resaving
	Always recompute post constructor links when calling MarkBlueprintAsModified, as it can be called from native and other places where we modified CDOs but don't have a property changed event

Change 3375372 on 2017/03/31 by Ben.Zeigler

	#jira UE-39568 Change Components to specifically update LatentActions the same as Actors do, so they update properly if bUpdateWhilePaused is set

Change 3375380 on 2017/03/31 by Marc.Audy

	Modify IsMainAudioDevice to deal with the case where no audio device has been created.

Change 3375402 on 2017/03/31 by Marc.Audy

	Fix DuplicateWorldForPIE in the case that the OwningWorld is null.

Change 3376037 on 2017/04/02 by Phillip.Kavan

	#jira UE-35332 - Preserve the least common ancestor pin type on object array function node inputs after a node refresh.

	Change summary:
	- Added UK2Node_CallArrayFunction::GetDynamicallyTypedPins() to consolidate the code that retrieves type-dependent parameter pins.
	- Added FBlueprintEditorUtils::FindLinkedPinWithAuthoritativePinType() to consolidate the code that considers other linked pins when choosing which type to propagate to type-dependent parameter pins.
	- Added FBlueprintEditorUtils::PropagatePinTypeInfo() to consolidate the common code from UK2Node_CallArrayFunction::PropagateArrayTypeInfo(); this eliminated a redundant retrieval of the target pin set.
	- Refactored UK2Node_CallArrayFunction::PropagateArrayTypeInfo() to now call FBlueprintEditorUtils::PropagatePinTypeInfo() after retrieving the set of dynamically-typed pins.
	- Refactored UK2Node_CallArrayFunction::NotifyPinConnectionListChanged() to remove some unnecessary iteration passes and to ensure that we propagate the authoritative (least common ancestor) pin type for object- and struct-based types.

Change 3376364 on 2017/04/03 by Richard.Hinckley

	UE-40920 Fix to Paper2D flipbook timeline editor. Previously, the timeline shown was one frame shorter than the animation. Now, the timeline shows the correct frame count.

Change 3376366 on 2017/04/03 by Richard.Hinckley

	UE-40920 Bugfix to Paper2D flipbook editor. The red line indicating the current frame now adjusts properly if the timeline is longer than the editor window and the scroll bar is moved to the right.

Change 3376517 on 2017/04/03 by Marc.Audy

	PR #3195: Added support for GamePad on RawInput Plugin (Contributed by katze7514)
	#jira UE-41499

Change 3376708 on 2017/04/03 by Mike.Beach

	Moving nativized plugins into a centralized folder (so we can use it as an additional plugin lookup dir) - this is so we can ultimately keep the generated code around for debugging purposes.

	Summary of changes:
	- nativized plugins now moved to ...\Intermediate\Plugins\<PLATFORM>\NativizedAssets
	- corresponding manifest files get saved inside the module and named to match the platform
	- nativized modules now whitelisted only for the platform they were generated for
	- cleanup on how we generate paths (now piping in platform name) and pass multi-cook process ids (for building manifest filenames)
	- extending the 'NativizeAssets' command line, so you can use it to specify the target plugin path (utilized by UAT to coordinate the plugin path between cook & build - was previously hardcoded in multiple places).

Change 3376826 on 2017/04/03 by Phillip.Kavan

	#jira UE-43330 - Fix a crash when adding an input parameter to a Custom Event node after deleting a Function Graph containing a Create Event node.

	Change summary:
	- Modified UK2Node_CreateDelegate::HandleAnyChangeWithoutNotifying() to check for a valid blueprint before accessing it (since the accessor is now a checked operation).
	- Modified UK2Node_CreateDelegate::GetScopeClass() to also check for a valid blueprint before accessing it.
	- Switched 'NULL' to 'nullptr' in a few spots.

Change 3376831 on 2017/04/03 by Ben.Zeigler

	#jira UE-43500, clean up UPackage when EDL/async loading fails. This restores EDL LoadPackage to work the same as non EDL and return NULL instead of an invalid empty package

Change 3376846 on 2017/04/03 by Ben.Zeigler

	#jira UE-38760 Properly refresh exec pins when removing pin from a Switch on Int node

Change 3376850 on 2017/04/03 by Dan.Oconnor

	Use authoritative class to mitigate compilation order issues

Change 3376961 on 2017/04/03 by Ben.Zeigler

	#jira UE-43127 Add struct ops implementations for FIntVector and FBox2d, any blueprint type needs struct ops to avoid crashes
	Fix Box2d variable name in NoExportTypes

Change 3376985 on 2017/04/03 by Ben.Zeigler

	#jira UE-43582 Remove Xbox-specific code from AssetRegistry because it won't work after my refactor. The serialization is much faster now and neither Bob nor I can conceive of a way this would take long enough to stall the main thread. If it it is somehow a problem, it should be wrapped in a slow task instead

Change 3377009 on 2017/04/03 by Ben.Zeigler

	#jira UE-43036 Fix crash when right clicking blueprint with no parent class. Ensures are fine but crashes should be avoided so people can try to copy data out of them

Change 3377054 on 2017/04/03 by Zak.Middleton

	#ue4 - Fix CharacterMovementComponent updated with very high delta time on server when initially joining. Make sure the ServerTimeStamp is initialized to current world time rather than zero to prevent large delta.

	#jira UE-40344
	#udn https://udn.unrealengine.com/questions/310497/large-delta-time-for-first-player-movement-update.html

Change 3377061 on 2017/04/03 by Dan.Oconnor

	Fixes for issues exposed by cooking with compilation manager. When cooking we end up with more blueprints compiling at a single time, which highlighted issues reading from generated classes while they were actively regenerating.

	Note that EInternalCompilerFlags::PostponeLocalsGenerationUntilPhaseTwo has only been added to mitigate risk - there is no known reason that existing compilation flows can't postpone generatation of local variables.

Change 3377073 on 2017/04/03 by Mike.Beach

	CIS fix - proper initialization ordering.

Change 3377371 on 2017/04/03 by Ben.Zeigler

	#jira UE-43144 Disallow creating map of FText, like bool it is not hashable

Change 3377395 on 2017/04/03 by Dan.Oconnor

	Build fix - make order in source match initialization order in artifact

Change 3377417 on 2017/04/03 by Dan.Oconnor

	Speculative SA fix

Change 3377496 on 2017/04/03 by Aaron.McLeran

	#jira UE-43558 Cleaning up shutdown code with audio plugins.

Change 3377608 on 2017/04/03 by Zak.Middleton

	#ue4 - Added function ACharacter::CacheInitialMeshOffset() to cache initial mesh offset, used as the target for network smoothing. Added a call to this function from BeginPlay() in addition to the existing call from PostInitializeComponents(), and exposed this to blueprints as well. This fixes the case of people moving the mesh in BeginPlay rather than in the editor or construction script and not having the mesh offset reflected correctly in network games.

	#jira UE-38966

Change 3377880 on 2017/04/03 by Aaron.McLeran

	Audio bug fixes

	#jira UE-43600  Fixing sounds played by playsoundatlocation for audio volume calculations
	#jira UE-43601 Fixing listener volume interpolation
	#jida UE-43602 Fixing reverb/eq interpolation

Change 3377908 on 2017/04/03 by Phillip.Kavan

	#jira UE-43565 - Fix a regression on type-dependent array function node pins that have more than one link.

	Change summary:
	- Added FBlueprintEditorUtils::FindLinkedPinWithMostDerivedPinType()
	- Modified FBlueprintEditorUtils::FindLinkedPinWithAuthoritativePinType() to properly handle pins that have multiple links.

Change 3377912 on 2017/04/03 by Dan.Oconnor

	Fix for missing SUBINSTANCE variables on anim BP skeletons. I elected to force SUBINSTANCE variable creation for the compilation manager codepath

Change 3377946 on 2017/04/03 by Ben.Zeigler

	#jira UE-43594 Fix issue with streamable manager where a failed load would leave bAsyncLoadRequestOutstanding, which would confuse later calls to stream the same asset
	Lower some error verbosity now that I believe I have tracked down the issue

Change 3377950 on 2017/04/03 by Michael.Noland

	Blueprints: Prevent merge tool from crashing in SVN when looking at a file with gaps in the revision history
	(May still not work correctly, but it won't crash; full fix covered by UE-43603)
	#jira UE-22428

Change 3377981 on 2017/04/03 by Michael.Noland

	PR #3416: UE-43005: Prevent crash due to too long name (Contributed by projectgheist)

	#jira UE-43291
	#jira UE-43005

Change 3378039 on 2017/04/04 by Michael.Noland

	PhysX: Allowed the editor to compile when bRuntimePhysicsCooking is disabled (WITH_EDITOR is used in every place in C++ to force it in already)

Change 3378041 on 2017/04/04 by Michael.Noland

	Paper2D: Adjusted under what circumstances CreatePhysicsMeshes is called on various Paper2D types to match UProceduralMeshComponent

Change 3378081 on 2017/04/04 by Dan.Oconnor

	Fix Blueprint Context nodes so that they don't rely on Ar.IsBeingSaved() call before compilation
	3x because of copy/paste

Change 3378094 on 2017/04/04 by Dan.Oconnor

	Add missing preload call for compilation manager

Change 3378917 on 2017/04/04 by Marc.Audy

	Fix static analysis (which is very dumb)

Change 3378986 on 2017/04/04 by Dan.Oconnor

	Fix bad merge

Change 3379100 on 2017/04/04 by Dan.Oconnor

	Fix missing CPF_ConstParm/CPF_ReferenceParm/CPF_OutParm logic in 'fast' skeleton path
	#jira UE-43629

Change 3379102 on 2017/04/04 by Ben.Zeigler

	Actually fix StreamableManager issues with cancelling a request messing up things in the future. We now always queue a request, even if it failed before or there is one in progress. This has to be done to avoid issues with cancelling the existing request or mounting new files after it's failed once
	Now that StreamableManager will retry missing files, add failed load packages to the known missing list so it won't spam errors over and over

Change 3379147 on 2017/04/04 by Zak.Middleton

	#ue4 - Improve on CL 3377608: Made Character::CacheInitialMeshOffset() take location and rotation params so you can be explicit on the values, in case you try to change these during network smoothing, where reading the relative offsets would have been skewed.

Change 3379254 on 2017/04/04 by Aaron.McLeran

	Fixing sounds in audio mixer when no EQ has been set.

Change 3379760 on 2017/04/04 by Ben.Zeigler

	#jira UE-43647 Don't delete failed async packages that are rooted

[CL 3380073 by Dan Oconnor in Main branch]
2017-04-04 20:49:52 -04:00

2774 lines
93 KiB
C++
Raw Blame History

// Copyright 1998-2017 Epic Games, Inc. All Rights Reserved.
#include "K2Node_CallFunction.h"
#include "BlueprintCompilationManager.h"
#include "UObject/UObjectHash.h"
#include "UObject/Interface.h"
#include "UObject/PropertyPortFlags.h"
#include "Kismet/BlueprintFunctionLibrary.h"
#include "Engine/BlueprintGeneratedClass.h"
#include "GraphEditorSettings.h"
#include "EdGraph/EdGraph.h"
#include "EdGraphSchema_K2.h"
#include "K2Node_Event.h"
#include "K2Node_AssignmentStatement.h"
#include "K2Node_CallArrayFunction.h"
#include "K2Node_CustomEvent.h"
#include "K2Node_FunctionEntry.h"
#include "K2Node_IfThenElse.h"
#include "K2Node_TemporaryVariable.h"
#include "Kismet2/BlueprintEditorUtils.h"
#include "EditorStyleSettings.h"
#include "Editor.h"
#include "EdGraphUtilities.h"
#include "KismetCompiler.h"
#include "CallFunctionHandler.h"
#include "K2Node_SwitchEnum.h"
#include "Kismet/KismetMathLibrary.h"
#include "Kismet/KismetArrayLibrary.h"
#include "Kismet2/KismetDebugUtilities.h"
#include "K2Node_PureAssignmentStatement.h"
#include "BlueprintActionFilter.h"
#include "FindInBlueprintManager.h"
#include "SPinTypeSelector.h"
#define LOCTEXT_NAMESPACE "K2Node"
/*******************************************************************************
* FCustomStructureParamHelper
******************************************************************************/
struct FCustomStructureParamHelper
{
static FName GetCustomStructureParamName()
{
static FName Name(TEXT("CustomStructureParam"));
return Name;
}
static void FillCustomStructureParameterNames(const UFunction* Function, TArray<FString>& OutNames)
{
OutNames.Empty();
if (Function)
{
FString MetaDataValue = Function->GetMetaData(GetCustomStructureParamName());
if (!MetaDataValue.IsEmpty())
{
MetaDataValue.ParseIntoArray(OutNames, TEXT(","), true);
}
}
}
static void HandleSinglePin(UEdGraphPin* Pin)
{
if (Pin)
{
if (Pin->LinkedTo.Num() > 0)
{
UEdGraphPin* LinkedTo = Pin->LinkedTo[0];
check(LinkedTo);
ensure(!LinkedTo->PinType.bIsArray);
Pin->PinType = LinkedTo->PinType;
}
else
{
const UEdGraphSchema_K2* Schema = GetDefault<UEdGraphSchema_K2>();
Pin->PinType.PinCategory = Schema->PC_Wildcard;
Pin->PinType.PinSubCategory = TEXT("");
Pin->PinType.PinSubCategoryObject = NULL;
}
}
}
static void UpdateCustomStructurePins(const UFunction* Function, UK2Node* Node, UEdGraphPin* SinglePin = NULL)
{
if (Function && Node)
{
TArray<FString> Names;
FCustomStructureParamHelper::FillCustomStructureParameterNames(Function, Names);
if (SinglePin)
{
if (Names.Contains(SinglePin->PinName))
{
HandleSinglePin(SinglePin);
}
}
else
{
for (auto& Name : Names)
{
if (auto Pin = Node->FindPin(Name))
{
HandleSinglePin(Pin);
}
}
}
}
}
};
/*******************************************************************************
* FDynamicOutputUtils
******************************************************************************/
struct FDynamicOutputHelper
{
public:
FDynamicOutputHelper(UEdGraphPin* InAlteredPin)
: MutatingPin(InAlteredPin)
{}
/**
* Attempts to change the output pin's type so that it reflects the class
* specified by the input class pin.
*/
void ConformOutputType() const;
/**
* Retrieves the class pin that is used to determine the function's output type.
*
* @return Null if the "DeterminesOutputType" metadata targets an invalid
* param (or if the metadata isn't present), otherwise a class picker pin.
*/
static UEdGraphPin* GetTypePickerPin(const UK2Node_CallFunction* FuncNode);
/**
* Attempts to pull out class info from the supplied pin. Starts with the
* pin's default, and then falls back onto the pin's native type. Will poll
* any connections that the pin may have.
*
* @param Pin The pin you want a class from.
* @return A class that the pin represents (could be null if the pin isn't a class pin).
*/
static UClass* GetPinClass(UEdGraphPin* Pin);
/**
* Intended to be used by ValidateNodeDuringCompilation(). Will check to
* make sure the dynamic output's connections are still valid (they could
* become invalid as the the pin's type changes).
*
* @param FuncNode The node you wish to validate.
* @param MessageLog The log to post errors/warnings to.
*/
static void VerifyNode(const UK2Node_CallFunction* FuncNode, FCompilerResultsLog& MessageLog);
private:
/**
*
*
* @return
*/
UK2Node_CallFunction* GetFunctionNode() const;
/**
*
*
* @return
*/
UFunction* GetTargetFunction() const;
/**
* Checks if the supplied pin is the class picker that governs the
* function's output type.
*
* @param Pin The pin to test.
* @return True if the pin corresponds to the param that was flagged by the "DeterminesOutputType" metadata.
*/
bool IsTypePickerPin(UEdGraphPin* Pin) const;
/**
* Retrieves the object output pin that is altered as the class input is
* changed (favors params flagged by "DynamicOutputParam" metadata).
*
* @return Null if the output param cannot be altered from the class input,
* otherwise a output pin that will mutate type as the class input is changed.
*/
static UEdGraphPin* GetDynamicOutPin(const UK2Node_CallFunction* FuncNode);
/**
* Checks if the specified type is an object type that reflects the picker
* pin's class.
*
* @param TypeToTest The type you want to check.
* @return True if the type is likely the output governed by the class picker pin, otherwise false.
*/
static bool CanConformPinType(const UK2Node_CallFunction* FuncNode, const FEdGraphPinType& TypeToTest);
private:
UEdGraphPin* MutatingPin;
};
void FDynamicOutputHelper::ConformOutputType() const
{
if (IsTypePickerPin(MutatingPin))
{
UClass* PickedClass = GetPinClass(MutatingPin);
UK2Node_CallFunction* FuncNode = GetFunctionNode();
if (UEdGraphPin* DynamicOutPin = GetDynamicOutPin(FuncNode))
{
DynamicOutPin->PinType.PinSubCategoryObject = PickedClass;
// leave the connection, and instead bring the user's attention to
// it via a ValidateNodeDuringCompilation() error
// const UEdGraphSchema* Schema = FuncNode->GetSchema();
// for (int32 LinkIndex = 0; LinkIndex < DynamicOutPin->LinkedTo.Num();)
// {
// UEdGraphPin* Link = DynamicOutPin->LinkedTo[LinkIndex];
// // if this can no longer be linked to the other pin, then we
// // should disconnect it (because the pin's type just changed)
// if (Schema->CanCreateConnection(DynamicOutPin, Link).Response == CONNECT_RESPONSE_DISALLOW)
// {
// DynamicOutPin->BreakLinkTo(Link);
// // @TODO: warn/notify somehow
// }
// else
// {
// ++LinkIndex;
// }
// }
}
}
}
UEdGraphPin* FDynamicOutputHelper::GetTypePickerPin(const UK2Node_CallFunction* FuncNode)
{
UEdGraphPin* TypePickerPin = nullptr;
if (UFunction* Function = FuncNode->GetTargetFunction())
{
FString TypeDeterminingPinName = Function->GetMetaData(FBlueprintMetadata::MD_DynamicOutputType);
if (!TypeDeterminingPinName.IsEmpty())
{
TypePickerPin = FuncNode->FindPin(TypeDeterminingPinName);
}
}
if (TypePickerPin && !ensure(TypePickerPin->Direction == EGPD_Input))
{
TypePickerPin = nullptr;
}
return TypePickerPin;
}
UClass* FDynamicOutputHelper::GetPinClass(UEdGraphPin* Pin)
{
UClass* PinClass = UObject::StaticClass();
bool const bIsClassOrObjectPin = (Pin->PinType.PinCategory == UEdGraphSchema_K2::PC_Class || Pin->PinType.PinCategory == UEdGraphSchema_K2::PC_Object);
if (bIsClassOrObjectPin)
{
if (UClass* DefaultClass = Cast<UClass>(Pin->DefaultObject))
{
PinClass = DefaultClass;
}
else if (UClass* BaseClass = Cast<UClass>(Pin->PinType.PinSubCategoryObject.Get()))
{
PinClass = BaseClass;
}
if (Pin->LinkedTo.Num() > 0)
{
UClass* CommonInputClass = nullptr;
for (UEdGraphPin* LinkedPin : Pin->LinkedTo)
{
const FEdGraphPinType& LinkedPinType = LinkedPin->PinType;
UClass* LinkClass = Cast<UClass>(LinkedPinType.PinSubCategoryObject.Get());
if (LinkClass == nullptr && LinkedPinType.PinSubCategory == UEdGraphSchema_K2::PSC_Self)
{
if (UK2Node* K2Node = Cast<UK2Node>(LinkedPin->GetOwningNode()))
{
LinkClass = K2Node->GetBlueprint()->GeneratedClass;
}
}
if (LinkClass != nullptr)
{
if (CommonInputClass != nullptr)
{
while (!LinkClass->IsChildOf(CommonInputClass))
{
CommonInputClass = CommonInputClass->GetSuperClass();
}
}
else
{
CommonInputClass = LinkClass;
}
}
}
PinClass = CommonInputClass;
}
}
return PinClass;
}
void FDynamicOutputHelper::VerifyNode(const UK2Node_CallFunction* FuncNode, FCompilerResultsLog& MessageLog)
{
if (UEdGraphPin* DynamicOutPin = GetDynamicOutPin(FuncNode))
{
const UEdGraphSchema* Schema = FuncNode->GetSchema();
for (UEdGraphPin* Link : DynamicOutPin->LinkedTo)
{
if (Schema->CanCreateConnection(DynamicOutPin, Link).Response == CONNECT_RESPONSE_DISALLOW)
{
FText const ErrorFormat = LOCTEXT("BadConnection", "Invalid pin connection from '@@' to '@@'. You may have changed the type after the connections were made.");
MessageLog.Error(*ErrorFormat.ToString(), DynamicOutPin, Link);
}
}
}
// Ensure that editor module BP exposed UFunctions can only be called in blueprints for which the baseclass is also part of an editor module
const UClass* FunctionClass = FuncNode->FunctionReference.GetMemberParentClass();
const bool bIsEditorOnlyFunction = FunctionClass && IsEditorOnlyObject(FunctionClass);
const UBlueprint* Blueprint = FuncNode->GetBlueprint();
const UClass* BlueprintClass = Blueprint->ParentClass;
bool bIsEditorOnlyBlueprintBaseClass = !BlueprintClass || IsEditorOnlyObject(BlueprintClass);
if (bIsEditorOnlyFunction && !bIsEditorOnlyBlueprintBaseClass)
{
FText const ErrorFormat = LOCTEXT("BlueprintEditorOnly", "Function in Editor Only Module '@@' cannot be called within the Non-Editor module blueprint base class '@@'.");
MessageLog.Warning(*ErrorFormat.ToString(), FuncNode, BlueprintClass);
}
}
UK2Node_CallFunction* FDynamicOutputHelper::GetFunctionNode() const
{
return CastChecked<UK2Node_CallFunction>(MutatingPin->GetOwningNode());
}
UFunction* FDynamicOutputHelper::GetTargetFunction() const
{
return GetFunctionNode()->GetTargetFunction();
}
bool FDynamicOutputHelper::IsTypePickerPin(UEdGraphPin* Pin) const
{
bool bIsTypeDeterminingPin = false;
if (UFunction* Function = GetTargetFunction())
{
FString TypeDeterminingPinName = Function->GetMetaData(FBlueprintMetadata::MD_DynamicOutputType);
if (!TypeDeterminingPinName.IsEmpty())
{
bIsTypeDeterminingPin = (Pin->PinName == TypeDeterminingPinName);
}
}
bool const bPinIsClassPicker = (Pin->PinType.PinCategory == UEdGraphSchema_K2::PC_Class);
bool const bPinIsObjectPicker = (Pin->PinType.PinCategory == UEdGraphSchema_K2::PC_Object);
return bIsTypeDeterminingPin && (bPinIsClassPicker || bPinIsObjectPicker) && (Pin->Direction == EGPD_Input);
}
UEdGraphPin* FDynamicOutputHelper::GetDynamicOutPin(const UK2Node_CallFunction* FuncNode)
{
UProperty* TaggedOutputParam = nullptr;
if (UFunction* Function = FuncNode->GetTargetFunction())
{
const FString& OutputPinName = Function->GetMetaData(FBlueprintMetadata::MD_DynamicOutputParam);
// we sort through properties, instead of pins, because the pin's type
// could already be modified to some other class (for when we check CanConformPinType)
for (TFieldIterator<UProperty> ParamIt(Function); ParamIt && (ParamIt->PropertyFlags & CPF_Parm); ++ParamIt)
{
if (OutputPinName.IsEmpty() && ParamIt->HasAnyPropertyFlags(CPF_ReturnParm))
{
TaggedOutputParam = *ParamIt;
break;
}
else if (OutputPinName == ParamIt->GetName())
{
TaggedOutputParam = *ParamIt;
break;
}
}
if (TaggedOutputParam != nullptr)
{
const UEdGraphSchema_K2* K2Schema = GetDefault<UEdGraphSchema_K2>();
FEdGraphPinType PropertyPinType;
if (!K2Schema->ConvertPropertyToPinType(TaggedOutputParam, /*out*/PropertyPinType) || !CanConformPinType(FuncNode, PropertyPinType))
{
TaggedOutputParam = nullptr;
}
}
}
UEdGraphPin* DynamicOutPin = nullptr;
if (TaggedOutputParam != nullptr)
{
DynamicOutPin = FuncNode->FindPin(TaggedOutputParam->GetName());
if (DynamicOutPin && (DynamicOutPin->Direction != EGPD_Output))
{
DynamicOutPin = nullptr;
}
}
return DynamicOutPin;
}
bool FDynamicOutputHelper::CanConformPinType(const UK2Node_CallFunction* FuncNode, const FEdGraphPinType& TypeToTest)
{
bool bIsProperType = false;
if (UEdGraphPin* TypePickerPin = GetTypePickerPin(FuncNode))
{
UClass* BasePickerClass = CastChecked<UClass>(TypePickerPin->PinType.PinSubCategoryObject.Get());
const FString& PinCategory = TypeToTest.PinCategory;
if ((PinCategory == UEdGraphSchema_K2::PC_Object) ||
(PinCategory == UEdGraphSchema_K2::PC_Interface) ||
(PinCategory == UEdGraphSchema_K2::PC_Class))
{
if (UClass* TypeClass = Cast<UClass>(TypeToTest.PinSubCategoryObject.Get()))
{
bIsProperType = BasePickerClass->IsChildOf(TypeClass);
}
}
}
return bIsProperType;
}
/*******************************************************************************
* UK2Node_CallFunction
******************************************************************************/
UK2Node_CallFunction::UK2Node_CallFunction(const FObjectInitializer& ObjectInitializer)
: Super(ObjectInitializer)
, bPinTooltipsValid(false)
{
}
bool UK2Node_CallFunction::IsDeprecated() const
{
UFunction* Function = GetTargetFunction();
return (Function != NULL) && Function->HasMetaData(FBlueprintMetadata::MD_DeprecatedFunction);
}
bool UK2Node_CallFunction::ShouldWarnOnDeprecation() const
{
// TEMP: Do not warn in the case of SpawnActor, as we have a special upgrade path for those nodes
return (FunctionReference.GetMemberName() != FName(TEXT("BeginSpawningActorFromBlueprint")));
}
FString UK2Node_CallFunction::GetDeprecationMessage() const
{
UFunction* Function = GetTargetFunction();
if ((Function != NULL) && Function->HasMetaData(FBlueprintMetadata::MD_DeprecationMessage))
{
return FString::Printf(TEXT("%s %s"), *LOCTEXT("CallFunctionDeprecated_Warning", "@@ is deprecated;").ToString(), *Function->GetMetaData(FBlueprintMetadata::MD_DeprecationMessage));
}
return Super::GetDeprecationMessage();
}
FText UK2Node_CallFunction::GetFunctionContextString() const
{
FText ContextString;
// Don't show 'target is' if no target pin!
UEdGraphPin* SelfPin = GetDefault<UEdGraphSchema_K2>()->FindSelfPin(*this, EGPD_Input);
if(SelfPin != NULL && !SelfPin->bHidden)
{
const UFunction* Function = GetTargetFunction();
UClass* CurrentSelfClass = (Function != NULL) ? Function->GetOwnerClass() : NULL;
UClass const* TrueSelfClass = CurrentSelfClass;
if (CurrentSelfClass && CurrentSelfClass->ClassGeneratedBy)
{
TrueSelfClass = CurrentSelfClass->GetAuthoritativeClass();
}
const FText TargetText = FBlueprintEditorUtils::GetFriendlyClassDisplayName(TrueSelfClass);
FFormatNamedArguments Args;
Args.Add(TEXT("TargetName"), TargetText);
ContextString = FText::Format(LOCTEXT("CallFunctionOnDifferentContext", "Target is {TargetName}"), Args);
}
return ContextString;
}
FText UK2Node_CallFunction::GetNodeTitle(ENodeTitleType::Type TitleType) const
{
FText FunctionName;
FText ContextString;
FText RPCString;
if (UFunction* Function = GetTargetFunction())
{
RPCString = UK2Node_Event::GetLocalizedNetString(Function->FunctionFlags, true);
FunctionName = GetUserFacingFunctionName(Function);
ContextString = GetFunctionContextString();
}
else
{
FunctionName = FText::FromName(FunctionReference.GetMemberName());
if ((GEditor != NULL) && (GetDefault<UEditorStyleSettings>()->bShowFriendlyNames))
{
FunctionName = FText::FromString(FName::NameToDisplayString(FunctionName.ToString(), false));
}
}
if(TitleType == ENodeTitleType::FullTitle)
{
FFormatNamedArguments Args;
Args.Add(TEXT("FunctionName"), FunctionName);
Args.Add(TEXT("ContextString"), ContextString);
Args.Add(TEXT("RPCString"), RPCString);
if (ContextString.IsEmpty() && RPCString.IsEmpty())
{
return FText::Format(LOCTEXT("CallFunction_FullTitle", "{FunctionName}"), Args);
}
else if (ContextString.IsEmpty())
{
return FText::Format(LOCTEXT("CallFunction_FullTitle_WithRPCString", "{FunctionName}\n{RPCString}"), Args);
}
else if (RPCString.IsEmpty())
{
return FText::Format(LOCTEXT("CallFunction_FullTitle_WithContextString", "{FunctionName}\n{ContextString}"), Args);
}
else
{
return FText::Format(LOCTEXT("CallFunction_FullTitle_WithContextRPCString", "{FunctionName}\n{ContextString}\n{RPCString}"), Args);
}
}
else
{
return FunctionName;
}
}
void UK2Node_CallFunction::GetPinHoverText(const UEdGraphPin& Pin, FString& HoverTextOut) const
{
if (!bPinTooltipsValid)
{
for (auto& P : Pins)
{
P->PinToolTip.Empty();
GeneratePinTooltip(*P);
}
bPinTooltipsValid = true;
}
return UK2Node::GetPinHoverText(Pin, HoverTextOut);
}
void UK2Node_CallFunction::AllocateDefaultPins()
{
InvalidatePinTooltips();
UBlueprint* MyBlueprint = GetBlueprint();
UFunction* Function = GetTargetFunction();
// favor the skeleton function if possible (in case the signature has
// changed, and not yet compiled).
if (!FunctionReference.IsSelfContext())
{
UClass* FunctionClass = FunctionReference.GetMemberParentClass(MyBlueprint->GeneratedClass);
if (UBlueprintGeneratedClass* BpClassOwner = Cast<UBlueprintGeneratedClass>(FunctionClass))
{
// this function could currently only be a part of some skeleton
// class (the blueprint has not be compiled with it yet), so let's
// check the skeleton class as well, see if we can pull pin data
// from there...
UBlueprint* FunctionBlueprint = CastChecked<UBlueprint>(BpClassOwner->ClassGeneratedBy, ECastCheckedType::NullAllowed);
if (FunctionBlueprint)
{
if (UFunction* SkelFunction = FindField<UFunction>(FunctionBlueprint->SkeletonGeneratedClass, FunctionReference.GetMemberName()))
{
Function = SkelFunction;
}
}
}
}
// First try remap table
if (Function == NULL)
{
UClass* ParentClass = FunctionReference.GetMemberParentClass(GetBlueprintClassFromNode());
if (ParentClass != NULL)
{
if (UFunction* NewFunction = FMemberReference::FindRemappedField<UFunction>(ParentClass, FunctionReference.GetMemberName()))
{
// Found a remapped property, update the node
Function = NewFunction;
SetFromFunction(NewFunction);
}
}
}
if (Function == NULL)
{
// The function no longer exists in the stored scope
// Try searching inside all function libraries, in case the function got refactored into one of them.
for (TObjectIterator<UClass> ClassIt; ClassIt; ++ClassIt)
{
UClass* TestClass = *ClassIt;
if (TestClass->IsChildOf(UBlueprintFunctionLibrary::StaticClass()))
{
Function = FindField<UFunction>(TestClass, FunctionReference.GetMemberName());
if (Function != NULL)
{
UClass* OldClass = FunctionReference.GetMemberParentClass(GetBlueprintClassFromNode());
Message_Note( FString::Printf(*LOCTEXT("FixedUpFunctionInLibrary", "UK2Node_CallFunction: Fixed up function '%s', originally in '%s', now in library '%s'.").ToString(),
*FunctionReference.GetMemberName().ToString(),
(OldClass != NULL) ? *OldClass->GetName() : TEXT("(null)"), *TestClass->GetName()) );
SetFromFunction(Function);
break;
}
}
}
}
// Now create the pins if we ended up with a valid function to call
if (Function != NULL)
{
CreatePinsForFunctionCall(Function);
}
FCustomStructureParamHelper::UpdateCustomStructurePins(Function, this);
Super::AllocateDefaultPins();
}
/** Util to find self pin in an array */
UEdGraphPin* FindSelfPin(TArray<UEdGraphPin*>& Pins)
{
const UEdGraphSchema_K2* K2Schema = GetDefault<UEdGraphSchema_K2>();
for(int32 PinIdx=0; PinIdx<Pins.Num(); PinIdx++)
{
if(Pins[PinIdx]->PinName == K2Schema->PN_Self)
{
return Pins[PinIdx];
}
}
return NULL;
}
void UK2Node_CallFunction::ReallocatePinsDuringReconstruction(TArray<UEdGraphPin*>& OldPins)
{
// BEGIN TEMP
// We had a bug where the class was being messed up by copy/paste, but the self pin class was still ok. This code fixes up those cases.
UFunction* Function = GetTargetFunction();
if (Function == NULL)
{
if (UEdGraphPin* SelfPin = FindSelfPin(OldPins))
{
if (UClass* SelfPinClass = Cast<UClass>(SelfPin->PinType.PinSubCategoryObject.Get()))
{
if (UFunction* NewFunction = FindField<UFunction>(SelfPinClass, FunctionReference.GetMemberName()))
{
SetFromFunction(NewFunction);
}
}
}
}
// END TEMP
Super::ReallocatePinsDuringReconstruction(OldPins);
// Connect Execute and Then pins for functions, which became pure.
ReconnectPureExecPins(OldPins);
}
UEdGraphPin* UK2Node_CallFunction::CreateSelfPin(const UFunction* Function)
{
const UEdGraphSchema_K2* K2Schema = GetDefault<UEdGraphSchema_K2>();
// Chase up the function's Super chain, the function can be called on any object that is at least that specific
const UFunction* FirstDeclaredFunction = Function;
while (FirstDeclaredFunction->GetSuperFunction() != NULL)
{
FirstDeclaredFunction = FirstDeclaredFunction->GetSuperFunction();
}
// Create the self pin
UClass* FunctionClass = CastChecked<UClass>(FirstDeclaredFunction->GetOuter());
// we don't want blueprint-function target pins to be formed from the
// skeleton class (otherwise, they could be incompatible with other pins
// that represent the same type)... this here could lead to a compiler
// warning (the GeneratedClass could not have the function yet), but in
// that, the user would be reminded to compile the other blueprint
if (FunctionClass->ClassGeneratedBy)
{
FunctionClass = FunctionClass->GetAuthoritativeClass();
}
UEdGraphPin* SelfPin = NULL;
if (FunctionClass == GetBlueprint()->GeneratedClass)
{
// This means the function is defined within the blueprint, so the pin should be a true "self" pin
SelfPin = CreatePin(EGPD_Input, K2Schema->PC_Object, K2Schema->PSC_Self, NULL, false, false, K2Schema->PN_Self);
}
else if (FunctionClass->IsChildOf(UInterface::StaticClass()))
{
SelfPin = CreatePin(EGPD_Input, K2Schema->PC_Interface, TEXT(""), FunctionClass, false, false, K2Schema->PN_Self);
}
else
{
// This means that the function is declared in an external class, and should reference that class
SelfPin = CreatePin(EGPD_Input, K2Schema->PC_Object, TEXT(""), FunctionClass, false, false, K2Schema->PN_Self);
}
check(SelfPin != NULL);
return SelfPin;
}
void UK2Node_CallFunction::CreateExecPinsForFunctionCall(const UFunction* Function)
{
bool bCreateSingleExecInputPin = true;
bool bCreateThenPin = true;
// If not pure, create exec pins
if (!bIsPureFunc)
{
const UEdGraphSchema_K2* K2Schema = GetDefault<UEdGraphSchema_K2>();
// If we want enum->exec expansion, and it is not disabled, do it now
if(bWantsEnumToExecExpansion)
{
const FString& EnumParamName = Function->GetMetaData(FBlueprintMetadata::MD_ExpandEnumAsExecs);
UProperty* Prop = nullptr;
UEnum* Enum = nullptr;
if(UByteProperty* ByteProp = FindField<UByteProperty>(Function, FName(*EnumParamName)))
{
Prop = ByteProp;
Enum = ByteProp->Enum;
}
else if(UEnumProperty* EnumProp = FindField<UEnumProperty>(Function, FName(*EnumParamName)))
{
Prop = EnumProp;
Enum = EnumProp->GetEnum();
}
if(Prop != nullptr && Enum != nullptr)
{
const bool bIsFunctionInput = !Prop->HasAnyPropertyFlags(CPF_ReturnParm) &&
(!Prop->HasAnyPropertyFlags(CPF_OutParm) ||
Prop->HasAnyPropertyFlags(CPF_ReferenceParm));
const EEdGraphPinDirection Direction = bIsFunctionInput ? EGPD_Input : EGPD_Output;
// yay, found it! Now create exec pin for each
int32 NumExecs = (Enum->NumEnums() - 1);
for(int32 ExecIdx=0; ExecIdx<NumExecs; ExecIdx++)
{
bool const bShouldBeHidden = Enum->HasMetaData(TEXT("Hidden"), ExecIdx) || Enum->HasMetaData(TEXT("Spacer"), ExecIdx);
if (!bShouldBeHidden)
{
FString ExecName = Enum->GetNameStringByIndex(ExecIdx);
CreatePin(Direction, K2Schema->PC_Exec, TEXT(""), NULL, false, false, ExecName);
}
}
if (bIsFunctionInput)
{
// If using ExpandEnumAsExec for input, don't want to add a input exec pin
bCreateSingleExecInputPin = false;
}
else
{
// If using ExpandEnumAsExec for output, don't want to add a "then" pin
bCreateThenPin = false;
}
}
}
if (bCreateSingleExecInputPin)
{
// Single input exec pin
CreatePin(EGPD_Input, K2Schema->PC_Exec, TEXT(""), NULL, false, false, K2Schema->PN_Execute);
}
if (bCreateThenPin)
{
UEdGraphPin* OutputExecPin = CreatePin(EGPD_Output, K2Schema->PC_Exec, TEXT(""), NULL, false, false, K2Schema->PN_Then);
// Use 'completed' name for output pins on latent functions
if (Function->HasMetaData(FBlueprintMetadata::MD_Latent))
{
OutputExecPin->PinFriendlyName = FText::FromString(K2Schema->PN_Completed);
}
}
}
}
void UK2Node_CallFunction::DetermineWantsEnumToExecExpansion(const UFunction* Function)
{
bWantsEnumToExecExpansion = false;
if (Function->HasMetaData(FBlueprintMetadata::MD_ExpandEnumAsExecs))
{
const FString& EnumParamName = Function->GetMetaData(FBlueprintMetadata::MD_ExpandEnumAsExecs);
UByteProperty* EnumProp = FindField<UByteProperty>(Function, FName(*EnumParamName));
if((EnumProp != NULL && EnumProp->Enum != NULL) || FindField<UEnumProperty>(Function, FName(*EnumParamName)))
{
bWantsEnumToExecExpansion = true;
}
else
{
if (!bHasCompilerMessage)
{
//put in warning state
bHasCompilerMessage = true;
ErrorType = EMessageSeverity::Warning;
ErrorMsg = FString::Printf(*LOCTEXT("EnumToExecExpansionFailed", "Unable to find enum parameter with name '%s' to expand for @@").ToString(), *EnumParamName);
}
}
}
}
void UK2Node_CallFunction::GeneratePinTooltip(UEdGraphPin& Pin) const
{
ensure(Pin.GetOwningNode() == this);
UEdGraphSchema const* Schema = GetSchema();
check(Schema != NULL);
UEdGraphSchema_K2 const* const K2Schema = Cast<const UEdGraphSchema_K2>(Schema);
if (K2Schema == NULL)
{
Schema->ConstructBasicPinTooltip(Pin, FText::GetEmpty(), Pin.PinToolTip);
return;
}
// get the class function object associated with this node
UFunction* Function = GetTargetFunction();
if (Function == NULL)
{
Schema->ConstructBasicPinTooltip(Pin, FText::GetEmpty(), Pin.PinToolTip);
return;
}
GeneratePinTooltipFromFunction(Pin, Function);
}
bool UK2Node_CallFunction::CreatePinsForFunctionCall(const UFunction* Function)
{
const UEdGraphSchema_K2* K2Schema = GetDefault<UEdGraphSchema_K2>();
UClass* FunctionOwnerClass = Function->GetOuterUClass();
bIsInterfaceCall = FunctionOwnerClass->HasAnyClassFlags(CLASS_Interface);
bIsPureFunc = (Function->HasAnyFunctionFlags(FUNC_BlueprintPure) != false);
bIsConstFunc = (Function->HasAnyFunctionFlags(FUNC_Const) != false);
DetermineWantsEnumToExecExpansion(Function);
// Create input pins
CreateExecPinsForFunctionCall(Function);
UEdGraphPin* SelfPin = CreateSelfPin(Function);
// Renamed self pin to target
SelfPin->PinFriendlyName = LOCTEXT("Target", "Target");
const bool bIsProtectedFunc = Function->GetBoolMetaData(FBlueprintMetadata::MD_Protected);
const bool bIsStaticFunc = Function->HasAllFunctionFlags(FUNC_Static);
UEdGraph const* const Graph = GetGraph();
UBlueprint* BP = FBlueprintEditorUtils::FindBlueprintForGraph(Graph);
ensure(BP);
if (BP != nullptr)
{
const bool bIsFunctionCompatibleWithSelf = BP->SkeletonGeneratedClass->IsChildOf(FunctionOwnerClass);
if (bIsStaticFunc)
{
// For static methods, wire up the self to the CDO of the class if it's not us
if (!bIsFunctionCompatibleWithSelf)
{
UClass* AuthoritativeClass = FunctionOwnerClass->GetAuthoritativeClass();
SelfPin->DefaultObject = AuthoritativeClass->GetDefaultObject();
}
// Purity doesn't matter with a static function, we can always hide the self pin since we know how to call the method
SelfPin->bHidden = true;
}
else
{
if (Function->GetBoolMetaData(FBlueprintMetadata::MD_HideSelfPin))
{
SelfPin->bHidden = true;
SelfPin->bNotConnectable = true;
}
else
{
// Hide the self pin if the function is compatible with the blueprint class and pure (the !bIsConstFunc portion should be going away soon too hopefully)
SelfPin->bHidden = (bIsFunctionCompatibleWithSelf && bIsPureFunc && !bIsConstFunc);
}
}
}
// Build a list of the pins that should be hidden for this function (ones that are automagically filled in by the K2 compiler)
TSet<FString> PinsToHide;
TSet<FString> InternalPins;
FBlueprintEditorUtils::GetHiddenPinsForFunction(Graph, Function, PinsToHide, &InternalPins);
const bool bShowWorldContextPin = ((PinsToHide.Num() > 0) && BP && BP->ParentClass && BP->ParentClass->HasMetaDataHierarchical(FBlueprintMetadata::MD_ShowWorldContextPin));
// Create the inputs and outputs
bool bAllPinsGood = true;
for (TFieldIterator<UProperty> PropIt(Function); PropIt && (PropIt->PropertyFlags & CPF_Parm); ++PropIt)
{
UProperty* Param = *PropIt;
const bool bIsFunctionInput = !Param->HasAnyPropertyFlags(CPF_ReturnParm) && (!Param->HasAnyPropertyFlags(CPF_OutParm) || Param->HasAnyPropertyFlags(CPF_ReferenceParm));
const bool bIsRefParam = Param->HasAnyPropertyFlags(CPF_ReferenceParm) && bIsFunctionInput;
const EEdGraphPinDirection Direction = bIsFunctionInput ? EGPD_Input : EGPD_Output;
UEdGraphPin* Pin = CreatePin(Direction, TEXT(""), TEXT(""), NULL, false, bIsRefParam, Param->GetName());
const bool bPinGood = (Pin != NULL) && K2Schema->ConvertPropertyToPinType(Param, /*out*/ Pin->PinType);
if (bPinGood)
{
// Check for a display name override
const FString PinDisplayName = Param->GetMetaData(FBlueprintMetadata::MD_DisplayName);
if (!PinDisplayName.IsEmpty())
{
Pin->PinFriendlyName = FText::FromString(PinDisplayName);
}
//Flag pin as read only for const reference property
Pin->bDefaultValueIsIgnored = Param->HasAllPropertyFlags(CPF_ConstParm | CPF_ReferenceParm) && (!Function->HasMetaData(FBlueprintMetadata::MD_AutoCreateRefTerm) || Pin->PinType.bIsArray);
const bool bAdvancedPin = Param->HasAllPropertyFlags(CPF_AdvancedDisplay);
Pin->bAdvancedView = bAdvancedPin;
if(bAdvancedPin && (ENodeAdvancedPins::NoPins == AdvancedPinDisplay))
{
AdvancedPinDisplay = ENodeAdvancedPins::Hidden;
}
K2Schema->SetPinDefaultValue(Pin, Function, Param);
if (PinsToHide.Contains(Pin->PinName))
{
FString const DefaultToSelfMetaValue = Function->GetMetaData(FBlueprintMetadata::MD_DefaultToSelf);
FString const WorldContextMetaValue = Function->GetMetaData(FBlueprintMetadata::MD_WorldContext);
bool bIsSelfPin = ((Pin->PinName == DefaultToSelfMetaValue) || (Pin->PinName == WorldContextMetaValue));
if (!bShowWorldContextPin || !bIsSelfPin)
{
Pin->bHidden = true;
Pin->bNotConnectable = InternalPins.Contains(Pin->PinName);
}
}
PostParameterPinCreated(Pin);
}
bAllPinsGood = bAllPinsGood && bPinGood;
}
// If we have an 'enum to exec' parameter, set its default value to something valid so we don't get warnings
if(bWantsEnumToExecExpansion)
{
FString EnumParamName = Function->GetMetaData(FBlueprintMetadata::MD_ExpandEnumAsExecs);
UEdGraphPin* EnumParamPin = FindPin(EnumParamName);
if (UEnum* PinEnum = (EnumParamPin ? Cast<UEnum>(EnumParamPin->PinType.PinSubCategoryObject.Get()) : NULL))
{
EnumParamPin->DefaultValue = PinEnum->GetNameStringByIndex(0);
}
}
return bAllPinsGood;
}
void UK2Node_CallFunction::PostReconstructNode()
{
Super::PostReconstructNode();
InvalidatePinTooltips();
// conform pins that are marked as SetParam:
ConformContainerPins();
FCustomStructureParamHelper::UpdateCustomStructurePins(GetTargetFunction(), this);
const UEdGraphSchema_K2* K2Schema = GetDefault<UEdGraphSchema_K2>();
// Fixup self node, may have been overridden from old self node
UFunction* Function = GetTargetFunction();
const bool bIsStaticFunc = Function ? Function->HasAllFunctionFlags(FUNC_Static) : false;
UEdGraphPin* SelfPin = FindPin(K2Schema->PN_Self);
if (bIsStaticFunc && SelfPin)
{
// Wire up the self to the CDO of the class if it's not us
if (UBlueprint* BP = GetBlueprint())
{
UClass* FunctionOwnerClass = Function->GetOuterUClass();
if (!BP->SkeletonGeneratedClass->IsChildOf(FunctionOwnerClass))
{
SelfPin->DefaultObject = FunctionOwnerClass->GetDefaultObject();
}
else
{
// In case a non-NULL reference was previously serialized on load, ensure that it's set to NULL here to match what a new node's self pin would be initialized as (see CreatePinsForFunctionCall).
SelfPin->DefaultObject = nullptr;
}
}
}
if (UEdGraphPin* TypePickerPin = FDynamicOutputHelper::GetTypePickerPin(this))
{
FDynamicOutputHelper(TypePickerPin).ConformOutputType();
}
if (IsNodePure())
{
// Remove any pre-existing breakpoint on this node since pure nodes cannot have breakpoints
if (UBreakpoint* ExistingBreakpoint = FKismetDebugUtilities::FindBreakpointForNode(GetBlueprint(), this))
{
// Remove the breakpoint
FKismetDebugUtilities::StartDeletingBreakpoint(ExistingBreakpoint, GetBlueprint());
}
}
}
void UK2Node_CallFunction::NotifyPinConnectionListChanged(UEdGraphPin* Pin)
{
Super::NotifyPinConnectionListChanged(Pin);
// conform pins that are marked as SetParam:
ConformContainerPins();
if (!ensure(Pin))
{
return;
}
FCustomStructureParamHelper::UpdateCustomStructurePins(GetTargetFunction(), this, Pin);
// Refresh the node to hide internal-only pins once the [invalid] connection has been broken
if (Pin->bHidden && Pin->bNotConnectable && Pin->LinkedTo.Num() == 0)
{
GetGraph()->NotifyGraphChanged();
}
if (bIsBeadFunction)
{
if (Pin->LinkedTo.Num() == 0)
{
// Commit suicide; bead functions must always have an input and output connection
DestroyNode();
}
}
InvalidatePinTooltips();
FDynamicOutputHelper(Pin).ConformOutputType();
}
void UK2Node_CallFunction::PinDefaultValueChanged(UEdGraphPin* Pin)
{
Super::PinDefaultValueChanged(Pin);
InvalidatePinTooltips();
FDynamicOutputHelper(Pin).ConformOutputType();
}
UFunction* UK2Node_CallFunction::GetTargetFunction() const
{
if(!FBlueprintCompilationManager::IsGeneratedClassLayoutReady())
{
// first look in the skeleton class:
if(UFunction* SkeletonFn = GetTargetFunctionFromSkeletonClass())
{
return SkeletonFn;
}
}
UFunction* Function = FunctionReference.ResolveMember<UFunction>(GetBlueprintClassFromNode());
return Function;
}
UFunction* UK2Node_CallFunction::GetTargetFunctionFromSkeletonClass() const
{
UFunction* TargetFunction = nullptr;
UClass* ParentClass = FunctionReference.GetMemberParentClass( GetBlueprintClassFromNode() );
UBlueprint* OwningBP = ParentClass ? Cast<UBlueprint>( ParentClass->ClassGeneratedBy ) : nullptr;
if( UClass* SkeletonClass = OwningBP ? OwningBP->SkeletonGeneratedClass : nullptr )
{
TargetFunction = SkeletonClass->FindFunctionByName( FunctionReference.GetMemberName() );
}
return TargetFunction;
}
UEdGraphPin* UK2Node_CallFunction::GetThenPin() const
{
const UEdGraphSchema_K2* K2Schema = GetDefault<UEdGraphSchema_K2>();
UEdGraphPin* Pin = FindPin(K2Schema->PN_Then);
check(Pin == NULL || Pin->Direction == EGPD_Output); // If pin exists, it must be output
return Pin;
}
UEdGraphPin* UK2Node_CallFunction::GetReturnValuePin() const
{
const UEdGraphSchema_K2* K2Schema = GetDefault<UEdGraphSchema_K2>();
UEdGraphPin* Pin = FindPin(K2Schema->PN_ReturnValue);
check(Pin == NULL || Pin->Direction == EGPD_Output); // If pin exists, it must be output
return Pin;
}
bool UK2Node_CallFunction::IsLatentFunction() const
{
if (UFunction* Function = GetTargetFunction())
{
if (Function->HasMetaData(FBlueprintMetadata::MD_Latent))
{
return true;
}
}
return false;
}
bool UK2Node_CallFunction::AllowMultipleSelfs(bool bInputAsArray) const
{
if (UFunction* Function = GetTargetFunction())
{
return CanFunctionSupportMultipleTargets(Function);
}
return Super::AllowMultipleSelfs(bInputAsArray);
}
bool UK2Node_CallFunction::CanFunctionSupportMultipleTargets(UFunction const* Function)
{
bool const bIsImpure = !Function->HasAnyFunctionFlags(FUNC_BlueprintPure);
bool const bIsLatent = Function->HasMetaData(FBlueprintMetadata::MD_Latent);
bool const bHasReturnParam = (Function->GetReturnProperty() != nullptr);
return !bHasReturnParam && bIsImpure && !bIsLatent;
}
bool UK2Node_CallFunction::CanPasteHere(const UEdGraph* TargetGraph) const
{
// Basic check for graph compatibility, etc.
bool bCanPaste = Super::CanPasteHere(TargetGraph);
// We check function context for placability only in the base class case; derived classes are typically bound to
// specific functions that should always be placeable, but may not always be explicitly callable (e.g. InternalUseOnly).
if(bCanPaste && GetClass() == StaticClass())
{
const UEdGraphSchema_K2* K2Schema = GetDefault<UEdGraphSchema_K2>();
uint32 AllowedFunctionTypes = UEdGraphSchema_K2::EFunctionType::FT_Pure | UEdGraphSchema_K2::EFunctionType::FT_Const | UEdGraphSchema_K2::EFunctionType::FT_Protected;
if(K2Schema->DoesGraphSupportImpureFunctions(TargetGraph))
{
AllowedFunctionTypes |= UEdGraphSchema_K2::EFunctionType::FT_Imperative;
}
UFunction* TargetFunction = GetTargetFunction();
if( !TargetFunction )
{
TargetFunction = GetTargetFunctionFromSkeletonClass();
}
if (!TargetFunction)
{
// If the function doesn't exist and it is from self context, then it could be created from a CustomEvent node, that was also pasted (but wasn't compiled yet).
bCanPaste = FunctionReference.IsSelfContext();
}
else
{
bCanPaste = K2Schema->CanFunctionBeUsedInGraph(FBlueprintEditorUtils::FindBlueprintForGraphChecked(TargetGraph)->GeneratedClass, TargetFunction, TargetGraph, AllowedFunctionTypes, false);
}
}
return bCanPaste;
}
bool UK2Node_CallFunction::IsActionFilteredOut(FBlueprintActionFilter const& Filter)
{
bool bIsFilteredOut = false;
for(UEdGraph* TargetGraph : Filter.Context.Graphs)
{
bIsFilteredOut |= !CanPasteHere(TargetGraph);
}
return bIsFilteredOut;
}
static FLinearColor GetPalletteIconColor(UFunction const* Function)
{
bool const bIsPure = (Function != nullptr) && Function->HasAnyFunctionFlags(FUNC_BlueprintPure);
if (bIsPure)
{
return GetDefault<UGraphEditorSettings>()->PureFunctionCallNodeTitleColor;
}
return GetDefault<UGraphEditorSettings>()->FunctionCallNodeTitleColor;
}
FSlateIcon UK2Node_CallFunction::GetPaletteIconForFunction(UFunction const* Function, FLinearColor& OutColor)
{
static const FName NativeMakeFunc(TEXT("NativeMakeFunc"));
static const FName NativeBrakeFunc(TEXT("NativeBreakFunc"));
if (Function && Function->HasMetaData(NativeMakeFunc))
{
static FSlateIcon Icon("EditorStyle", "GraphEditor.MakeStruct_16x");
return Icon;
}
else if (Function && Function->HasMetaData(NativeBrakeFunc))
{
static FSlateIcon Icon("EditorStyle", "GraphEditor.BreakStruct_16x");
return Icon;
}
// Check to see if the function is calling an function that could be an event, display the event icon instead.
else if (Function && UEdGraphSchema_K2::FunctionCanBePlacedAsEvent(Function))
{
static FSlateIcon Icon("EditorStyle", "GraphEditor.Event_16x");
return Icon;
}
else
{
OutColor = GetPalletteIconColor(Function);
static FSlateIcon Icon("EditorStyle", "Kismet.AllClasses.FunctionIcon");
return Icon;
}
}
FLinearColor UK2Node_CallFunction::GetNodeTitleColor() const
{
return GetPalletteIconColor(GetTargetFunction());
}
FText UK2Node_CallFunction::GetTooltipText() const
{
FText Tooltip;
UFunction* Function = GetTargetFunction();
if (Function == nullptr)
{
return FText::Format(LOCTEXT("CallUnknownFunction", "Call unknown function {0}"), FText::FromName(FunctionReference.GetMemberName()));
}
else if (CachedTooltip.IsOutOfDate(this))
{
FText BaseTooltip = FText::FromString(GetDefaultTooltipForFunction(Function));
FFormatNamedArguments Args;
Args.Add(TEXT("DefaultTooltip"), BaseTooltip);
if (Function->HasAllFunctionFlags(FUNC_BlueprintAuthorityOnly))
{
Args.Add(
TEXT("ClientString"),
NSLOCTEXT("K2Node", "ServerFunction", "Authority Only. This function will only execute on the server.")
);
// FText::Format() is slow, so we cache this to save on performance
CachedTooltip.SetCachedText(FText::Format(LOCTEXT("CallFunction_SubtitledTooltip", "{DefaultTooltip}\n\n{ClientString}"), Args), this);
}
else if (Function->HasAllFunctionFlags(FUNC_BlueprintCosmetic))
{
Args.Add(
TEXT("ClientString"),
NSLOCTEXT("K2Node", "ClientFunction", "Cosmetic. This event is only for cosmetic, non-gameplay actions.")
);
// FText::Format() is slow, so we cache this to save on performance
CachedTooltip.SetCachedText(FText::Format(LOCTEXT("CallFunction_SubtitledTooltip", "{DefaultTooltip}\n\n{ClientString}"), Args), this);
}
else
{
CachedTooltip.SetCachedText(BaseTooltip, this);
}
}
return CachedTooltip;
}
void UK2Node_CallFunction::GeneratePinTooltipFromFunction(UEdGraphPin& Pin, const UFunction* Function)
{
if (Pin.bWasTrashed)
{
return;
}
// figure what tag we should be parsing for (is this a return-val pin, or a parameter?)
FString ParamName;
FString TagStr = TEXT("@param");
const bool bReturnPin = Pin.PinName == UEdGraphSchema_K2::PN_ReturnValue;
if (bReturnPin)
{
TagStr = TEXT("@return");
}
else
{
ParamName = Pin.PinName.ToLower();
}
// grab the the function's comment block for us to parse
FString FunctionToolTipText = Function->GetToolTipText().ToString();
int32 CurStrPos = INDEX_NONE;
int32 FullToolTipLen = FunctionToolTipText.Len();
// parse the full function tooltip text, looking for tag lines
do
{
CurStrPos = FunctionToolTipText.Find(TagStr, ESearchCase::IgnoreCase, ESearchDir::FromStart, CurStrPos);
if (CurStrPos == INDEX_NONE) // if the tag wasn't found
{
break;
}
// advance past the tag
CurStrPos += TagStr.Len();
// handle people having done @returns instead of @return
if (bReturnPin && CurStrPos < FullToolTipLen && FunctionToolTipText[CurStrPos] == TEXT('s'))
{
++CurStrPos;
}
// advance past whitespace
while(CurStrPos < FullToolTipLen && FChar::IsWhitespace(FunctionToolTipText[CurStrPos]))
{
++CurStrPos;
}
// if this is a parameter pin
if (!ParamName.IsEmpty())
{
FString TagParamName;
// copy the parameter name
while (CurStrPos < FullToolTipLen && !FChar::IsWhitespace(FunctionToolTipText[CurStrPos]))
{
TagParamName.AppendChar(FunctionToolTipText[CurStrPos++]);
}
// if this @param tag doesn't match the param we're looking for
if (TagParamName != ParamName)
{
continue;
}
}
// advance past whitespace (get to the meat of the comment)
// since many doxygen style @param use the format "@param <param name> - <comment>" we also strip - if it is before we get to any other non-whitespace
while(CurStrPos < FullToolTipLen && (FChar::IsWhitespace(FunctionToolTipText[CurStrPos]) || FunctionToolTipText[CurStrPos] == '-'))
{
++CurStrPos;
}
FString ParamDesc;
// collect the param/return-val description
while (CurStrPos < FullToolTipLen && FunctionToolTipText[CurStrPos] != TEXT('@'))
{
// advance past newline
while(CurStrPos < FullToolTipLen && FChar::IsLinebreak(FunctionToolTipText[CurStrPos]))
{
++CurStrPos;
// advance past whitespace at the start of a new line
while(CurStrPos < FullToolTipLen && FChar::IsWhitespace(FunctionToolTipText[CurStrPos]))
{
++CurStrPos;
}
// replace the newline with a single space
if(CurStrPos < FullToolTipLen && !FChar::IsLinebreak(FunctionToolTipText[CurStrPos]))
{
ParamDesc.AppendChar(TEXT(' '));
}
}
if (CurStrPos < FullToolTipLen && FunctionToolTipText[CurStrPos] != TEXT('@'))
{
ParamDesc.AppendChar(FunctionToolTipText[CurStrPos++]);
}
}
// trim any trailing whitespace from the descriptive text
ParamDesc.TrimTrailing();
// if we came up with a valid description for the param/return-val
if (!ParamDesc.IsEmpty())
{
Pin.PinToolTip += ParamDesc;
break; // we found a match, so there's no need to continue
}
} while (CurStrPos < FullToolTipLen);
GetDefault<UEdGraphSchema_K2>()->ConstructBasicPinTooltip(Pin, FText::FromString(Pin.PinToolTip), Pin.PinToolTip);
}
FText UK2Node_CallFunction::GetUserFacingFunctionName(const UFunction* Function)
{
FText ReturnDisplayName;
if (Function != NULL)
{
if (GEditor && GetDefault<UEditorStyleSettings>()->bShowFriendlyNames)
{
ReturnDisplayName = Function->GetDisplayNameText();
}
else
{
static const FString Namespace = TEXT("UObjectDisplayNames");
const FString Key = Function->GetFullGroupName(false);
ReturnDisplayName = Function->GetMetaDataText(TEXT("DisplayName"), Namespace, Key);
}
}
return ReturnDisplayName;
}
FString UK2Node_CallFunction::GetDefaultTooltipForFunction(const UFunction* Function)
{
FString Tooltip;
if (Function != NULL)
{
Tooltip = Function->GetToolTipText().ToString();
}
if (!Tooltip.IsEmpty())
{
// Strip off the doxygen nastiness
static const FString DoxygenParam(TEXT("@param"));
static const FString DoxygenReturn(TEXT("@return"));
static const FString DoxygenSee(TEXT("@see"));
static const FString TooltipSee(TEXT("See:"));
static const FString DoxygenNote(TEXT("@note"));
static const FString TooltipNote(TEXT("Note:"));
Tooltip.Split(DoxygenParam, &Tooltip, nullptr, ESearchCase::IgnoreCase, ESearchDir::FromStart);
Tooltip.Split(DoxygenReturn, &Tooltip, nullptr, ESearchCase::IgnoreCase, ESearchDir::FromStart);
Tooltip.ReplaceInline(*DoxygenSee, *TooltipSee);
Tooltip.ReplaceInline(*DoxygenNote, *TooltipNote);
Tooltip.Trim();
Tooltip.TrimTrailing();
UClass* CurrentSelfClass = (Function != NULL) ? Function->GetOwnerClass() : NULL;
UClass const* TrueSelfClass = CurrentSelfClass;
if (CurrentSelfClass && CurrentSelfClass->ClassGeneratedBy)
{
TrueSelfClass = CurrentSelfClass->GetAuthoritativeClass();
}
FText TargetDisplayText = (TrueSelfClass != NULL) ? TrueSelfClass->GetDisplayNameText() : LOCTEXT("None", "None");
FFormatNamedArguments Args;
Args.Add(TEXT("TargetName"), TargetDisplayText);
Args.Add(TEXT("Tooltip"), FText::FromString(Tooltip));
return FText::Format(LOCTEXT("CallFunction_Tooltip", "{Tooltip}\n\nTarget is {TargetName}"), Args).ToString();
}
else
{
return GetUserFacingFunctionName(Function).ToString();
}
}
FText UK2Node_CallFunction::GetDefaultCategoryForFunction(const UFunction* Function, const FText& BaseCategory)
{
FText NodeCategory = BaseCategory;
if( Function->HasMetaData(FBlueprintMetadata::MD_FunctionCategory) )
{
FText FuncCategory;
// If we are not showing friendly names, return the metadata stored, without localization
if( GEditor && !GetDefault<UEditorStyleSettings>()->bShowFriendlyNames )
{
FuncCategory = FText::FromString(Function->GetMetaData(FBlueprintMetadata::MD_FunctionCategory));
}
else
{
// Look for localized metadata
FuncCategory = Function->GetMetaDataText(FBlueprintMetadata::MD_FunctionCategory, TEXT("UObjectCategory"), Function->GetFullGroupName(false));
// If the result is culture invariant, force it into a display string
if (FuncCategory.IsCultureInvariant())
{
FuncCategory = FText::FromString(FName::NameToDisplayString(FuncCategory.ToString(), false));
}
}
// Combine with the BaseCategory to form the full category, delimited by "|"
if (!FuncCategory.IsEmpty() && !NodeCategory.IsEmpty())
{
NodeCategory = FText::Format(FText::FromString(TEXT("{0}|{1}")), NodeCategory, FuncCategory);
}
else if (NodeCategory.IsEmpty())
{
NodeCategory = FuncCategory;
}
}
return NodeCategory;
}
FText UK2Node_CallFunction::GetKeywordsForFunction(const UFunction* Function)
{
// If the friendly name and real function name do not match add the real function name friendly name as a keyword.
FString Keywords;
if( Function->GetName() != GetUserFacingFunctionName(Function).ToString() )
{
Keywords = Function->GetName();
}
if (ShouldDrawCompact(Function))
{
Keywords.AppendChar(TEXT(' '));
Keywords += GetCompactNodeTitle(Function);
}
FText MetadataKeywords = Function->GetMetaDataText(FBlueprintMetadata::MD_FunctionKeywords, TEXT("UObjectKeywords"), Function->GetFullGroupName(false));
FText ResultKeywords;
if (!MetadataKeywords.IsEmpty())
{
FFormatNamedArguments Args;
Args.Add(TEXT("Name"), FText::FromString(Keywords));
Args.Add(TEXT("MetadataKeywords"), MetadataKeywords);
ResultKeywords = FText::Format(FText::FromString("{Name} {MetadataKeywords}"), Args);
}
else
{
ResultKeywords = FText::FromString(Keywords);
}
return ResultKeywords;
}
void UK2Node_CallFunction::SetFromFunction(const UFunction* Function)
{
if (Function != NULL)
{
bIsPureFunc = Function->HasAnyFunctionFlags(FUNC_BlueprintPure);
bIsConstFunc = Function->HasAnyFunctionFlags(FUNC_Const);
DetermineWantsEnumToExecExpansion(Function);
FunctionReference.SetFromField<UFunction>(Function, GetBlueprintClassFromNode());
}
}
FString UK2Node_CallFunction::GetDocumentationLink() const
{
UClass* ParentClass = NULL;
if (FunctionReference.IsSelfContext())
{
if (HasValidBlueprint())
{
UFunction* Function = FindField<UFunction>(GetBlueprint()->GeneratedClass, FunctionReference.GetMemberName());
if (Function != NULL)
{
ParentClass = Function->GetOwnerClass();
}
}
}
else
{
ParentClass = FunctionReference.GetMemberParentClass(GetBlueprintClassFromNode());
}
if (ParentClass != NULL)
{
return FString::Printf(TEXT("Shared/GraphNodes/Blueprint/%s%s"), ParentClass->GetPrefixCPP(), *ParentClass->GetName());
}
return FString("Shared/GraphNodes/Blueprint/UK2Node_CallFunction");
}
FString UK2Node_CallFunction::GetDocumentationExcerptName() const
{
return FunctionReference.GetMemberName().ToString();
}
FString UK2Node_CallFunction::GetDescriptiveCompiledName() const
{
return FString(TEXT("CallFunc_")) + FunctionReference.GetMemberName().ToString();
}
bool UK2Node_CallFunction::ShouldDrawCompact(const UFunction* Function)
{
return (Function != NULL) && Function->HasMetaData(FBlueprintMetadata::MD_CompactNodeTitle);
}
bool UK2Node_CallFunction::ShouldDrawCompact() const
{
UFunction* Function = GetTargetFunction();
return ShouldDrawCompact(Function);
}
bool UK2Node_CallFunction::ShouldDrawAsBead() const
{
return bIsBeadFunction;
}
bool UK2Node_CallFunction::ShouldShowNodeProperties() const
{
// Show node properties if this corresponds to a function graph
if (FunctionReference.GetMemberName() != NAME_None)
{
return FindObject<UEdGraph>(GetBlueprint(), *(FunctionReference.GetMemberName().ToString())) != NULL;
}
return false;
}
FString UK2Node_CallFunction::GetCompactNodeTitle(const UFunction* Function)
{
static const FString ProgrammerMultiplicationSymbol = TEXT("*");
static const FString CommonMultiplicationSymbol = TEXT("\xD7");
static const FString ProgrammerDivisionSymbol = TEXT("/");
static const FString CommonDivisionSymbol = TEXT("\xF7");
static const FString ProgrammerConversionSymbol = TEXT("->");
static const FString CommonConversionSymbol = TEXT("\x2022");
const FString OperatorTitle = Function->GetMetaData(FBlueprintMetadata::MD_CompactNodeTitle);
if (!OperatorTitle.IsEmpty())
{
if (OperatorTitle == ProgrammerMultiplicationSymbol)
{
return CommonMultiplicationSymbol;
}
else if (OperatorTitle == ProgrammerDivisionSymbol)
{
return CommonDivisionSymbol;
}
else if (OperatorTitle == ProgrammerConversionSymbol)
{
return CommonConversionSymbol;
}
else
{
return OperatorTitle;
}
}
return Function->GetName();
}
FText UK2Node_CallFunction::GetCompactNodeTitle() const
{
UFunction* Function = GetTargetFunction();
if (Function != NULL)
{
return FText::FromString(GetCompactNodeTitle(Function));
}
else
{
return Super::GetCompactNodeTitle();
}
}
void UK2Node_CallFunction::GetRedirectPinNames(const UEdGraphPin& Pin, TArray<FString>& RedirectPinNames) const
{
Super::GetRedirectPinNames(Pin, RedirectPinNames);
if (RedirectPinNames.Num() > 0)
{
const FString OldPinName = RedirectPinNames[0];
// first add functionname.param
RedirectPinNames.Add(FString::Printf(TEXT("%s.%s"), *FunctionReference.GetMemberName().ToString(), *OldPinName));
// if there is class, also add an option for class.functionname.param
UClass* FunctionClass = FunctionReference.GetMemberParentClass(GetBlueprintClassFromNode());
while (FunctionClass)
{
RedirectPinNames.Add(FString::Printf(TEXT("%s.%s.%s"), *FunctionClass->GetName(), *FunctionReference.GetMemberName().ToString(), *OldPinName));
FunctionClass = FunctionClass->GetSuperClass();
}
}
}
void UK2Node_CallFunction::FixupSelfMemberContext()
{
UBlueprint* Blueprint = FBlueprintEditorUtils::FindBlueprintForNode(this);
auto IsBlueprintOfType = [Blueprint](UClass* ClassType)->bool
{
bool bIsChildOf = Blueprint && (Blueprint->GeneratedClass != nullptr) && Blueprint->GeneratedClass->IsChildOf(ClassType);
if (!bIsChildOf && Blueprint && (Blueprint->SkeletonGeneratedClass))
{
bIsChildOf = Blueprint->SkeletonGeneratedClass->IsChildOf(ClassType);
}
return bIsChildOf;
};
UClass* MemberClass = FunctionReference.GetMemberParentClass();
const bool bIsLocalMacro = Blueprint && Blueprint->MacroGraphs.Contains(GetGraph());
ensureMsgf(FunctionReference.IsSelfContext() || (MemberClass != nullptr) || bIsLocalMacro, TEXT("Unknown member class in %s"), *GetPathName());
if (FunctionReference.IsSelfContext())
{
if (MemberClass == nullptr)
{
// the self pin may have type information stored on it
if (UEdGraphPin* SelfPin = GetDefault<UEdGraphSchema_K2>()->FindSelfPin(*this, EGPD_Input))
{
MemberClass = Cast<UClass>(SelfPin->PinType.PinSubCategoryObject.Get());
}
}
// if we happened to retain the ParentClass for a self reference
// (unlikely), then we know where this node came from... let's keep it
// referencing that function
if (MemberClass != nullptr)
{
if (!IsBlueprintOfType(MemberClass))
{
FunctionReference.SetExternalMember(FunctionReference.GetMemberName(), MemberClass);
}
}
// else, there is nothing we can do... if there is an function matching
// the member name in this Blueprint, then it will reference that
// function (even if it came from a different Blueprint, one with an
// identically named function)... if there is no function matching this
// reference, then the node will produce an error later during compilation
}
else if (MemberClass != nullptr)
{
if (IsBlueprintOfType(MemberClass))
{
FunctionReference.SetSelfMember(FunctionReference.GetMemberName());
}
}
}
void UK2Node_CallFunction::PostPasteNode()
{
Super::PostPasteNode();
FixupSelfMemberContext();
UFunction* Function = GetTargetFunction();
if(Function != NULL)
{
// After pasting we need to go through and ensure the hidden the self pins is correct in case the source blueprint had different metadata
TSet<FString> PinsToHide;
FBlueprintEditorUtils::GetHiddenPinsForFunction(GetGraph(), Function, PinsToHide);
const bool bShowWorldContextPin = ((PinsToHide.Num() > 0) && GetBlueprint()->ParentClass->HasMetaDataHierarchical(FBlueprintMetadata::MD_ShowWorldContextPin));
FString const DefaultToSelfMetaValue = Function->GetMetaData(FBlueprintMetadata::MD_DefaultToSelf);
FString const WorldContextMetaValue = Function->GetMetaData(FBlueprintMetadata::MD_WorldContext);
const UEdGraphSchema_K2* K2Schema = GetDefault<UEdGraphSchema_K2>();
for (int32 PinIndex = 0; PinIndex < Pins.Num(); ++PinIndex)
{
UEdGraphPin* Pin = Pins[PinIndex];
bool bIsSelfPin = ((Pin->PinName == DefaultToSelfMetaValue) || (Pin->PinName == WorldContextMetaValue));
bool bPinShouldBeHidden = PinsToHide.Contains(Pin->PinName) && (!bShowWorldContextPin || !bIsSelfPin);
if (bPinShouldBeHidden && !Pin->bHidden)
{
Pin->BreakAllPinLinks();
K2Schema->SetPinDefaultValueBasedOnType(Pin);
}
Pin->bHidden = bPinShouldBeHidden;
}
}
}
void UK2Node_CallFunction::PostDuplicate(bool bDuplicateForPIE)
{
Super::PostDuplicate(bDuplicateForPIE);
if (!bDuplicateForPIE && (!this->HasAnyFlags(RF_Transient)))
{
FixupSelfMemberContext();
}
}
void UK2Node_CallFunction::ValidateNodeDuringCompilation(class FCompilerResultsLog& MessageLog) const
{
Super::ValidateNodeDuringCompilation(MessageLog);
const UBlueprint* Blueprint = GetBlueprint();
UFunction *Function = GetTargetFunction();
if (Function == NULL)
{
FString OwnerName;
if (Blueprint != nullptr)
{
OwnerName = Blueprint->GetName();
if (UClass* FuncOwnerClass = FunctionReference.GetMemberParentClass(Blueprint->GeneratedClass))
{
OwnerName = FuncOwnerClass->GetName();
}
}
FString const FunctName = FunctionReference.GetMemberName().ToString();
FText const WarningFormat = LOCTEXT("FunctionNotFound", "Could not find a function named \"%s\" in '%s'.\nMake sure '%s' has been compiled for @@");
MessageLog.Error(*FString::Printf(*WarningFormat.ToString(), *FunctName, *OwnerName, *OwnerName), this);
}
else if (Function->HasMetaData(FBlueprintMetadata::MD_ExpandEnumAsExecs) && bWantsEnumToExecExpansion == false)
{
const FString& EnumParamName = Function->GetMetaData(FBlueprintMetadata::MD_ExpandEnumAsExecs);
MessageLog.Warning(*FString::Printf(*LOCTEXT("EnumToExecExpansionFailed", "Unable to find enum parameter with name '%s' to expand for @@").ToString(), *EnumParamName), this);
}
if (Function)
{
// enforce UnsafeDuringActorConstruction keyword
if (Function->HasMetaData(FBlueprintMetadata::MD_UnsafeForConstructionScripts))
{
// emit warning if we are in a construction script
UEdGraph const* const Graph = GetGraph();
UEdGraphSchema_K2 const* const Schema = Cast<const UEdGraphSchema_K2>(GetSchema());
bool bNodeIsInConstructionScript = Schema && Schema->IsConstructionScript(Graph);
if (bNodeIsInConstructionScript == false)
{
// IsConstructionScript() can return false if graph was cloned from the construction script
// in that case, check the function entry
TArray<const UK2Node_FunctionEntry*> EntryPoints;
Graph->GetNodesOfClass(EntryPoints);
if (EntryPoints.Num() == 1)
{
UK2Node_FunctionEntry const* const Node = EntryPoints[0];
if (Node)
{
UFunction* const SignatureFunction = FindField<UFunction>(Node->SignatureClass, Node->SignatureName);
bNodeIsInConstructionScript = SignatureFunction && (SignatureFunction->GetFName() == Schema->FN_UserConstructionScript);
}
}
}
if ( bNodeIsInConstructionScript )
{
MessageLog.Warning(*LOCTEXT("FunctionUnsafeDuringConstruction", "Function '@@' is unsafe to call in a construction script.").ToString(), this);
}
}
// enforce WorldContext restrictions
const bool bInsideBpFuncLibrary = Blueprint && (BPTYPE_FunctionLibrary == Blueprint->BlueprintType);
if (!bInsideBpFuncLibrary &&
Function->HasMetaData(FBlueprintMetadata::MD_WorldContext) &&
!Function->HasMetaData(FBlueprintMetadata::MD_CallableWithoutWorldContext))
{
check(Blueprint);
UClass* ParentClass = Blueprint->ParentClass;
check(ParentClass);
if (ParentClass && !FBlueprintEditorUtils::ImplentsGetWorld(Blueprint) && !ParentClass->HasMetaDataHierarchical(FBlueprintMetadata::MD_ShowWorldContextPin))
{
MessageLog.Warning(*LOCTEXT("FunctionUnsafeInContext", "Function '@@' is unsafe to call from blueprints of class '@@'.").ToString(), this, ParentClass);
}
}
}
FDynamicOutputHelper::VerifyNode(this, MessageLog);
for (UEdGraphPin* Pin : Pins)
{
if (Pin && Pin->PinType.bIsWeakPointer && !Pin->PinType.IsContainer())
{
const FString ErrorString = FString::Printf(
*LOCTEXT("WeakPtrNotSupportedError", "Weak prointer is not supported as function parameter. Pin '%s' @@").ToString(),
*Pin->GetName());
MessageLog.Error(*ErrorString, this);
}
}
}
void UK2Node_CallFunction::Serialize(FArchive& Ar)
{
Super::Serialize(Ar);
if (Ar.IsLoading())
{
if (Ar.UE4Ver() < VER_UE4_SWITCH_CALL_NODE_TO_USE_MEMBER_REFERENCE)
{
UFunction* Function = FindField<UFunction>(CallFunctionClass_DEPRECATED, CallFunctionName_DEPRECATED);
const bool bProbablySelfCall = (CallFunctionClass_DEPRECATED == NULL) || ((Function != NULL) && (Function->GetOuterUClass()->ClassGeneratedBy == GetBlueprint()));
FunctionReference.SetDirect(CallFunctionName_DEPRECATED, FGuid(), CallFunctionClass_DEPRECATED, bProbablySelfCall);
}
if(Ar.UE4Ver() < VER_UE4_K2NODE_REFERENCEGUIDS)
{
FGuid FunctionGuid;
if (UBlueprint::GetGuidFromClassByFieldName<UFunction>(GetBlueprint()->GeneratedClass, FunctionReference.GetMemberName(), FunctionGuid))
{
const bool bSelf = FunctionReference.IsSelfContext();
FunctionReference.SetDirect(FunctionReference.GetMemberName(), FunctionGuid, (bSelf ? NULL : FunctionReference.GetMemberParentClass((UClass*)NULL)), bSelf);
}
}
if (!Ar.IsObjectReferenceCollector())
{
// Don't validate the enabled state if the user has explicitly set it. Also skip validation if we're just duplicating this node.
const bool bIsDuplicating = (Ar.GetPortFlags() & PPF_Duplicate) != 0;
if (!bIsDuplicating && !bUserSetEnabledState)
{
UClass* SelfScope = GetBlueprintClassFromNode();
if (!FunctionReference.IsSelfContext() || SelfScope != nullptr)
{
if (const UFunction* Function = FunctionReference.ResolveMember<UFunction>(SelfScope))
{
// Enable as development-only if specified in metadata. This way existing functions that have the metadata added to them will get their enabled state fixed up on load.
if (EnabledState == ENodeEnabledState::Enabled && Function->HasMetaData(FBlueprintMetadata::MD_DevelopmentOnly))
{
EnabledState = ENodeEnabledState::DevelopmentOnly;
}
// Ensure that if the metadata is removed, we also fix up the enabled state to avoid leaving it set as development-only in that case.
else if (EnabledState == ENodeEnabledState::DevelopmentOnly && !Function->HasMetaData(FBlueprintMetadata::MD_DevelopmentOnly))
{
EnabledState = ENodeEnabledState::Enabled;
}
}
}
}
}
}
}
void UK2Node_CallFunction::PostPlacedNewNode()
{
Super::PostPlacedNewNode();
// Try re-setting the function given our new parent scope, in case it turns an external to an internal, or vis versa
FunctionReference.RefreshGivenNewSelfScope<UFunction>(GetBlueprintClassFromNode());
// Re-enable for development only if specified in metadata.
if(EnabledState == ENodeEnabledState::Enabled && !bUserSetEnabledState)
{
const UFunction* Function = GetTargetFunction();
if (Function && Function->HasMetaData(FBlueprintMetadata::MD_DevelopmentOnly))
{
EnabledState = ENodeEnabledState::DevelopmentOnly;
}
}
}
FNodeHandlingFunctor* UK2Node_CallFunction::CreateNodeHandler(FKismetCompilerContext& CompilerContext) const
{
return new FKCHandler_CallFunction(CompilerContext);
}
void UK2Node_CallFunction::ExpandNode(class FKismetCompilerContext& CompilerContext, UEdGraph* SourceGraph)
{
Super::ExpandNode(CompilerContext, SourceGraph);
const UEdGraphSchema_K2* Schema = CompilerContext.GetSchema();
UFunction* Function = GetTargetFunction();
// connect DefaultToSelf and WorldContext inside static functions to proper 'self'
if (SourceGraph && Schema->IsStaticFunctionGraph(SourceGraph) && Function)
{
TArray<UK2Node_FunctionEntry*> EntryPoints;
SourceGraph->GetNodesOfClass(EntryPoints);
if (1 != EntryPoints.Num())
{
CompilerContext.MessageLog.Warning(*FString::Printf(*LOCTEXT("WrongEntryPointsNum", "%i entry points found while expanding node @@").ToString(), EntryPoints.Num()), this);
}
else if (auto BetterSelfPin = EntryPoints[0]->GetAutoWorldContextPin())
{
FString const DefaultToSelfMetaValue = Function->GetMetaData(FBlueprintMetadata::MD_DefaultToSelf);
FString const WorldContextMetaValue = Function->GetMetaData(FBlueprintMetadata::MD_WorldContext);
struct FStructConnectHelper
{
static void Connect(const FString& PinName, UK2Node* Node, UEdGraphPin* BetterSelf, const UEdGraphSchema_K2* InSchema, FCompilerResultsLog& MessageLog)
{
auto Pin = Node->FindPin(PinName);
if (!PinName.IsEmpty() && Pin && !Pin->LinkedTo.Num())
{
const bool bConnected = InSchema->TryCreateConnection(Pin, BetterSelf);
if (!bConnected)
{
MessageLog.Warning(*LOCTEXT("DefaultToSelfNotConnected", "DefaultToSelf pin @@ from node @@ cannot be connected to @@").ToString(), Pin, Node, BetterSelf);
}
}
}
};
FStructConnectHelper::Connect(DefaultToSelfMetaValue, this, BetterSelfPin, Schema, CompilerContext.MessageLog);
if (!Function->HasMetaData(FBlueprintMetadata::MD_CallableWithoutWorldContext))
{
FStructConnectHelper::Connect(WorldContextMetaValue, this, BetterSelfPin, Schema, CompilerContext.MessageLog);
}
}
}
// If we have an enum param that is expanded, we handle that first
if(bWantsEnumToExecExpansion)
{
if(Function)
{
// Get the metadata that identifies which param is the enum, and try and find it
const FString& EnumParamName = Function->GetMetaData(FBlueprintMetadata::MD_ExpandEnumAsExecs);
UEnum* Enum = nullptr;
if (UByteProperty* ByteProp = FindField<UByteProperty>(Function, FName(*EnumParamName)))
{
Enum = ByteProp->Enum;
}
else if (UEnumProperty* EnumProp = FindField<UEnumProperty>(Function, FName(*EnumParamName)))
{
Enum = EnumProp->GetEnum();
}
UEdGraphPin* EnumParamPin = FindPinChecked(EnumParamName);
if(Enum != nullptr)
{
// Expanded as input execs pins
if (EnumParamPin->Direction == EGPD_Input)
{
// Create normal exec input
UEdGraphPin* ExecutePin = CreatePin(EGPD_Input, Schema->PC_Exec, TEXT(""), NULL, false, false, Schema->PN_Execute);
// Create temp enum variable
UK2Node_TemporaryVariable* TempEnumVarNode = CompilerContext.SpawnIntermediateNode<UK2Node_TemporaryVariable>(this, SourceGraph);
TempEnumVarNode->VariableType.PinCategory = Schema->PC_Byte;
TempEnumVarNode->VariableType.PinSubCategoryObject = Enum;
TempEnumVarNode->AllocateDefaultPins();
// Get the output pin
UEdGraphPin* TempEnumVarOutput = TempEnumVarNode->GetVariablePin();
// Connect temp enum variable to (hidden) enum pin
Schema->TryCreateConnection(TempEnumVarOutput, EnumParamPin);
// Now we want to iterate over other exec inputs...
for(int32 PinIdx=Pins.Num()-1; PinIdx>=0; PinIdx--)
{
UEdGraphPin* Pin = Pins[PinIdx];
if( Pin != NULL &&
Pin != ExecutePin &&
Pin->Direction == EGPD_Input &&
Pin->PinType.PinCategory == Schema->PC_Exec )
{
// Create node to set the temp enum var
UK2Node_AssignmentStatement* AssignNode = CompilerContext.SpawnIntermediateNode<UK2Node_AssignmentStatement>(this, SourceGraph);
AssignNode->AllocateDefaultPins();
// Move connections from fake 'enum exec' pint to this assignment node
CompilerContext.MovePinLinksToIntermediate(*Pin, *AssignNode->GetExecPin());
// Connect this to out temp enum var
Schema->TryCreateConnection(AssignNode->GetVariablePin(), TempEnumVarOutput);
// Connect exec output to 'real' exec pin
Schema->TryCreateConnection(AssignNode->GetThenPin(), ExecutePin);
// set the literal enum value to set to
AssignNode->GetValuePin()->DefaultValue = Pin->PinName;
// Finally remove this 'cosmetic' exec pin
Pins[PinIdx]->MarkPendingKill();
Pins.RemoveAt(PinIdx);
}
}
}
// Expanded as output execs pins
else if (EnumParamPin->Direction == EGPD_Output)
{
// Create normal exec output
UEdGraphPin* ExecutePin = CreatePin(EGPD_Output, Schema->PC_Exec, TEXT(""), NULL, false, false, Schema->PN_Execute);
// Create a SwitchEnum node to switch on the output enum
UK2Node_SwitchEnum* SwitchEnumNode = CompilerContext.SpawnIntermediateNode<UK2Node_SwitchEnum>(this, SourceGraph);
UEnum* EnumObject = Cast<UEnum>(EnumParamPin->PinType.PinSubCategoryObject.Get());
SwitchEnumNode->SetEnum(EnumObject);
SwitchEnumNode->AllocateDefaultPins();
// Hook up execution to the switch node
Schema->TryCreateConnection(ExecutePin, SwitchEnumNode->GetExecPin());
// Connect (hidden) enum pin to switch node's selection pin
Schema->TryCreateConnection(EnumParamPin, SwitchEnumNode->GetSelectionPin());
// Now we want to iterate over other exec outputs
for(int32 PinIdx=Pins.Num()-1; PinIdx>=0; PinIdx--)
{
UEdGraphPin* Pin = Pins[PinIdx];
if( Pin != NULL &&
Pin != ExecutePin &&
Pin->Direction == EGPD_Output &&
Pin->PinType.PinCategory == Schema->PC_Exec )
{
// Move connections from fake 'enum exec' pin to this switch node
CompilerContext.MovePinLinksToIntermediate(*Pin, *SwitchEnumNode->FindPinChecked(Pin->PinName));
// Finally remove this 'cosmetic' exec pin
Pins[PinIdx]->MarkPendingKill();
Pins.RemoveAt(PinIdx);
}
}
}
}
}
}
// AUTO CREATED REFS
{
if ( Function )
{
TArray<FString> AutoCreateRefTermPinNames;
const bool bHasAutoCreateRefTerms = Function->HasMetaData(FBlueprintMetadata::MD_AutoCreateRefTerm);
if ( bHasAutoCreateRefTerms )
{
CompilerContext.GetSchema()->GetAutoEmitTermParameters(Function, AutoCreateRefTermPinNames);
}
for (UEdGraphPin* Pin : Pins)
{
const bool bIsRefInputParam = Pin && Pin->PinType.bIsReference && (Pin->Direction == EGPD_Input) && !CompilerContext.GetSchema()->IsMetaPin(*Pin);
if (!bIsRefInputParam)
{
continue;
}
const bool bHasConnections = Pin->LinkedTo.Num() > 0;
const bool bCreateDefaultValRefTerm = bHasAutoCreateRefTerms &&
!bHasConnections && AutoCreateRefTermPinNames.Contains(Pin->PinName);
if (bCreateDefaultValRefTerm)
{
const bool bHasDefaultValue = !Pin->DefaultValue.IsEmpty() || Pin->DefaultObject || !Pin->DefaultTextValue.IsEmpty();
//default values can be reset when the pin is connected
const auto DefaultValue = Pin->DefaultValue;
const auto DefaultObject = Pin->DefaultObject;
const auto DefaultTextValue = Pin->DefaultTextValue;
const auto AutogeneratedDefaultValue = Pin->AutogeneratedDefaultValue;
UEdGraphPin* ValuePin = InnerHandleAutoCreateRef(this, Pin, CompilerContext, SourceGraph, bHasDefaultValue);
if ( ValuePin )
{
if (!DefaultObject && DefaultTextValue.IsEmpty() && DefaultValue.Equals(AutogeneratedDefaultValue, ESearchCase::CaseSensitive))
{
// Use the latest code to set default value
Schema->SetPinDefaultValueBasedOnType(ValuePin);
}
else
{
ValuePin->DefaultValue = DefaultValue;
ValuePin->DefaultObject = DefaultObject;
ValuePin->DefaultTextValue = DefaultTextValue;
}
}
}
// since EX_Self does not produce an addressable (referenceable) UProperty, we need to shim
// in a "auto-ref" term in its place (this emulates how UHT generates a local value for
// native functions; hence the IsNative() check)
else if (bHasConnections && Pin->LinkedTo[0]->PinType.PinSubCategory == UEdGraphSchema_K2::PSC_Self && Pin->PinType.bIsConst && !Function->IsNative())
{
InnerHandleAutoCreateRef(this, Pin, CompilerContext, SourceGraph, /*bForceAssignment =*/true);
}
}
}
}
// Then we go through and expand out array iteration if necessary
const bool bAllowMultipleSelfs = AllowMultipleSelfs(true);
UEdGraphPin* MultiSelf = Schema->FindSelfPin(*this, EEdGraphPinDirection::EGPD_Input);
if(bAllowMultipleSelfs && MultiSelf && !MultiSelf->PinType.bIsArray)
{
const bool bProperInputToExpandForEach =
(1 == MultiSelf->LinkedTo.Num()) &&
(NULL != MultiSelf->LinkedTo[0]) &&
(MultiSelf->LinkedTo[0]->PinType.bIsArray);
if(bProperInputToExpandForEach)
{
CallForEachElementInArrayExpansion(this, MultiSelf, CompilerContext, SourceGraph);
}
}
}
UEdGraphPin* UK2Node_CallFunction::InnerHandleAutoCreateRef(UK2Node* Node, UEdGraphPin* Pin, FKismetCompilerContext& CompilerContext, UEdGraph* SourceGraph, bool bForceAssignment)
{
const bool bAddAssigment = !Pin->PinType.bIsArray && bForceAssignment;
// ADD LOCAL VARIABLE
UK2Node_TemporaryVariable* LocalVariable = CompilerContext.SpawnIntermediateNode<UK2Node_TemporaryVariable>(Node, SourceGraph);
LocalVariable->VariableType = Pin->PinType;
LocalVariable->VariableType.bIsReference = false;
LocalVariable->AllocateDefaultPins();
if (!bAddAssigment)
{
if (!CompilerContext.GetSchema()->TryCreateConnection(LocalVariable->GetVariablePin(), Pin))
{
CompilerContext.MessageLog.Error(*LOCTEXT("AutoCreateRefTermPin_NotConnected", "AutoCreateRefTerm Expansion: Pin @@ cannot be connected to @@").ToString(), LocalVariable->GetVariablePin(), Pin);
return NULL;
}
}
// ADD ASSIGMENT
else
{
// TODO connect to dest..
UK2Node_PureAssignmentStatement* AssignDefaultValue = CompilerContext.SpawnIntermediateNode<UK2Node_PureAssignmentStatement>(Node, SourceGraph);
AssignDefaultValue->AllocateDefaultPins();
const bool bVariableConnected = CompilerContext.GetSchema()->TryCreateConnection(AssignDefaultValue->GetVariablePin(), LocalVariable->GetVariablePin());
auto AssignInputPit = AssignDefaultValue->GetValuePin();
const bool bPreviousInputSaved = AssignInputPit && CompilerContext.MovePinLinksToIntermediate(*Pin, *AssignInputPit).CanSafeConnect();
const bool bOutputConnected = CompilerContext.GetSchema()->TryCreateConnection(AssignDefaultValue->GetOutputPin(), Pin);
if (!bVariableConnected || !bOutputConnected || !bPreviousInputSaved)
{
CompilerContext.MessageLog.Error(*LOCTEXT("AutoCreateRefTermPin_AssignmentError", "AutoCreateRefTerm Expansion: Assignment Error @@").ToString(), AssignDefaultValue);
return NULL;
}
CompilerContext.GetSchema()->SetPinDefaultValueBasedOnType(AssignDefaultValue->GetValuePin());
return AssignInputPit;
}
return NULL;
}
void UK2Node_CallFunction::CallForEachElementInArrayExpansion(UK2Node* Node, UEdGraphPin* MultiSelf, FKismetCompilerContext& CompilerContext, UEdGraph* SourceGraph)
{
const UEdGraphSchema_K2* Schema = CompilerContext.GetSchema();
check(Node && MultiSelf && SourceGraph && Schema);
const bool bProperInputToExpandForEach =
(1 == MultiSelf->LinkedTo.Num()) &&
(NULL != MultiSelf->LinkedTo[0]) &&
(MultiSelf->LinkedTo[0]->PinType.bIsArray);
ensure(bProperInputToExpandForEach);
UEdGraphPin* ThenPin = Node->FindPinChecked(Schema->PN_Then);
// Create int Iterator
UK2Node_TemporaryVariable* IteratorVar = CompilerContext.SpawnIntermediateNode<UK2Node_TemporaryVariable>(Node, SourceGraph);
IteratorVar->VariableType.PinCategory = Schema->PC_Int;
IteratorVar->AllocateDefaultPins();
// Initialize iterator
UK2Node_AssignmentStatement* InteratorInitialize = CompilerContext.SpawnIntermediateNode<UK2Node_AssignmentStatement>(Node, SourceGraph);
InteratorInitialize->AllocateDefaultPins();
InteratorInitialize->GetValuePin()->DefaultValue = TEXT("0");
Schema->TryCreateConnection(IteratorVar->GetVariablePin(), InteratorInitialize->GetVariablePin());
CompilerContext.MovePinLinksToIntermediate(*Node->GetExecPin(), *InteratorInitialize->GetExecPin());
// Do loop branch
UK2Node_IfThenElse* Branch = CompilerContext.SpawnIntermediateNode<UK2Node_IfThenElse>(Node, SourceGraph);
Branch->AllocateDefaultPins();
Schema->TryCreateConnection(InteratorInitialize->GetThenPin(), Branch->GetExecPin());
CompilerContext.MovePinLinksToIntermediate(*ThenPin, *Branch->GetElsePin());
// Do loop condition
UK2Node_CallFunction* Condition = CompilerContext.SpawnIntermediateNode<UK2Node_CallFunction>(Node, SourceGraph);
Condition->SetFromFunction(UKismetMathLibrary::StaticClass()->FindFunctionByName(GET_FUNCTION_NAME_CHECKED(UKismetMathLibrary, Less_IntInt)));
Condition->AllocateDefaultPins();
Schema->TryCreateConnection(Condition->GetReturnValuePin(), Branch->GetConditionPin());
Schema->TryCreateConnection(Condition->FindPinChecked(TEXT("A")), IteratorVar->GetVariablePin());
// Array size
UK2Node_CallArrayFunction* ArrayLength = CompilerContext.SpawnIntermediateNode<UK2Node_CallArrayFunction>(Node, SourceGraph);
ArrayLength->SetFromFunction(UKismetArrayLibrary::StaticClass()->FindFunctionByName(GET_FUNCTION_NAME_CHECKED(UKismetArrayLibrary, Array_Length)));
ArrayLength->AllocateDefaultPins();
CompilerContext.CopyPinLinksToIntermediate(*MultiSelf, *ArrayLength->GetTargetArrayPin());
ArrayLength->PinConnectionListChanged(ArrayLength->GetTargetArrayPin());
Schema->TryCreateConnection(Condition->FindPinChecked(TEXT("B")), ArrayLength->GetReturnValuePin());
// Get Element
UK2Node_CallArrayFunction* GetElement = CompilerContext.SpawnIntermediateNode<UK2Node_CallArrayFunction>(Node, SourceGraph);
GetElement->SetFromFunction(UKismetArrayLibrary::StaticClass()->FindFunctionByName(GET_FUNCTION_NAME_CHECKED(UKismetArrayLibrary, Array_Get)));
GetElement->AllocateDefaultPins();
CompilerContext.CopyPinLinksToIntermediate(*MultiSelf, *GetElement->GetTargetArrayPin());
GetElement->PinConnectionListChanged(GetElement->GetTargetArrayPin());
Schema->TryCreateConnection(GetElement->FindPinChecked(TEXT("Index")), IteratorVar->GetVariablePin());
// Iterator increment
UK2Node_CallFunction* Increment = CompilerContext.SpawnIntermediateNode<UK2Node_CallFunction>(Node, SourceGraph);
Increment->SetFromFunction(UKismetMathLibrary::StaticClass()->FindFunctionByName(GET_FUNCTION_NAME_CHECKED(UKismetMathLibrary, Add_IntInt)));
Increment->AllocateDefaultPins();
Schema->TryCreateConnection(Increment->FindPinChecked(TEXT("A")), IteratorVar->GetVariablePin());
Increment->FindPinChecked(TEXT("B"))->DefaultValue = TEXT("1");
// Iterator assigned
UK2Node_AssignmentStatement* IteratorAssign = CompilerContext.SpawnIntermediateNode<UK2Node_AssignmentStatement>(Node, SourceGraph);
IteratorAssign->AllocateDefaultPins();
Schema->TryCreateConnection(IteratorAssign->GetVariablePin(), IteratorVar->GetVariablePin());
Schema->TryCreateConnection(IteratorAssign->GetValuePin(), Increment->GetReturnValuePin());
Schema->TryCreateConnection(IteratorAssign->GetThenPin(), Branch->GetExecPin());
// Connect pins from intermediate nodes back in to the original node
Schema->TryCreateConnection(Branch->GetThenPin(), Node->GetExecPin());
Schema->TryCreateConnection(ThenPin, IteratorAssign->GetExecPin());
Schema->TryCreateConnection(GetElement->FindPinChecked(TEXT("Item")), MultiSelf);
}
FName UK2Node_CallFunction::GetCornerIcon() const
{
if (const UFunction* Function = GetTargetFunction())
{
if (Function->HasAllFunctionFlags(FUNC_BlueprintAuthorityOnly))
{
return TEXT("Graph.Replication.AuthorityOnly");
}
else if (Function->HasAllFunctionFlags(FUNC_BlueprintCosmetic))
{
return TEXT("Graph.Replication.ClientEvent");
}
else if(Function->HasMetaData(FBlueprintMetadata::MD_Latent))
{
return TEXT("Graph.Latent.LatentIcon");
}
}
return Super::GetCornerIcon();
}
FSlateIcon UK2Node_CallFunction::GetIconAndTint(FLinearColor& OutColor) const
{
return GetPaletteIconForFunction(GetTargetFunction(), OutColor);
}
bool UK2Node_CallFunction::ReconnectPureExecPins(TArray<UEdGraphPin*>& OldPins)
{
if (IsNodePure())
{
// look for an old exec pin
const UEdGraphSchema_K2* K2Schema = GetDefault<UEdGraphSchema_K2>();
UEdGraphPin* PinExec = nullptr;
for (int32 PinIdx = 0; PinIdx < OldPins.Num(); PinIdx++)
{
if (OldPins[PinIdx]->PinName == K2Schema->PN_Execute)
{
PinExec = OldPins[PinIdx];
break;
}
}
if (PinExec)
{
// look for old then pin
UEdGraphPin* PinThen = nullptr;
for (int32 PinIdx = 0; PinIdx < OldPins.Num(); PinIdx++)
{
if (OldPins[PinIdx]->PinName == K2Schema->PN_Then)
{
PinThen = OldPins[PinIdx];
break;
}
}
if (PinThen)
{
// reconnect all incoming links to old exec pin to the far end of the old then pin.
if (PinThen->LinkedTo.Num() > 0)
{
UEdGraphPin* PinThenLinked = PinThen->LinkedTo[0];
while (PinExec->LinkedTo.Num() > 0)
{
UEdGraphPin* PinExecLinked = PinExec->LinkedTo[0];
PinExecLinked->BreakLinkTo(PinExec);
PinExecLinked->MakeLinkTo(PinThenLinked);
}
return true;
}
}
}
}
return false;
}
void UK2Node_CallFunction::InvalidatePinTooltips()
{
bPinTooltipsValid = false;
}
void UK2Node_CallFunction::ConformContainerPins()
{
// helper functions for type propagation:
const auto TryReadTypeToPropagate = [](UEdGraphPin* Pin, bool& bOutPropagated, FEdGraphTerminalType& TypeToPropagete)
{
if (Pin && !bOutPropagated)
{
if (Pin->LinkedTo.Num() != 0 || Pin->DefaultValue != Pin->AutogeneratedDefaultValue)
{
bOutPropagated = true;
if (Pin->LinkedTo.Num() != 0)
{
TypeToPropagete = Pin->LinkedTo[0]->GetPrimaryTerminalType();
}
else
{
TypeToPropagete = Pin->GetPrimaryTerminalType();
}
}
}
};
const auto TryReadValueTypeToPropagate = [](UEdGraphPin* Pin, bool& bOutPropagated, FEdGraphTerminalType& TypeToPropagete)
{
if (Pin && !bOutPropagated)
{
if (Pin->LinkedTo.Num() != 0 || Pin->DefaultValue != Pin->AutogeneratedDefaultValue)
{
bOutPropagated = true;
if (Pin->LinkedTo.Num() != 0)
{
TypeToPropagete = Pin->LinkedTo[0]->PinType.PinValueType;
}
else
{
TypeToPropagete = Pin->PinType.PinValueType;
}
}
}
};
const auto TryPropagateType = [](UEdGraphPin* Pin, const FEdGraphTerminalType& TerminalType, bool bTypeIsAvailable)
{
if(Pin)
{
if(bTypeIsAvailable)
{
Pin->PinType.PinCategory = TerminalType.TerminalCategory;
Pin->PinType.PinSubCategory = TerminalType.TerminalSubCategory;
Pin->PinType.PinSubCategoryObject = TerminalType.TerminalSubCategoryObject;
}
else
{
// reset to wildcard:
Pin->PinType.PinCategory = UEdGraphSchema_K2::PC_Wildcard;
Pin->PinType.PinSubCategory.Empty();
Pin->PinType.PinSubCategoryObject = nullptr;
Pin->DefaultValue = TEXT("");
}
}
};
const auto TryPropagateValueType = [](UEdGraphPin* Pin, const FEdGraphTerminalType& TerminalType, bool bTypeIsAvailable)
{
if (Pin)
{
if (bTypeIsAvailable)
{
Pin->PinType.PinValueType.TerminalCategory = TerminalType.TerminalCategory;
Pin->PinType.PinValueType.TerminalSubCategory = TerminalType.TerminalSubCategory;
Pin->PinType.PinValueType.TerminalSubCategoryObject = TerminalType.TerminalSubCategoryObject;
}
else
{
Pin->PinType.PinValueType.TerminalCategory = UEdGraphSchema_K2::PC_Wildcard;
Pin->PinType.PinValueType.TerminalSubCategory.Empty();
Pin->PinType.PinValueType.TerminalSubCategoryObject = nullptr;
}
}
};
const UFunction* TargetFunction = GetTargetFunction();
if (TargetFunction == nullptr)
{
return;
}
// find any pins marked as SetParam
const FString& SetPinMetaData = TargetFunction->GetMetaData(FBlueprintMetadata::MD_SetParam);
// useless copies/allocates in this code, could be an optimization target...
TArray<FString> SetParamPinGroups;
{
SetPinMetaData.ParseIntoArray(SetParamPinGroups, TEXT(","), true);
}
for (FString& Entry : SetParamPinGroups)
{
// split the group:
TArray<FString> GroupEntries;
Entry.ParseIntoArray(GroupEntries, TEXT("|"), true);
// resolve pins
TArray<UEdGraphPin*> ResolvedPins;
for(UEdGraphPin* Pin : Pins)
{
if (GroupEntries.Contains(Pin->GetName()))
{
ResolvedPins.Add(Pin);
}
}
// if nothing is connected (or non-default), reset to wildcard
// else, find the first type and propagate to everyone else::
bool bReadyToPropagatSetType = false;
FEdGraphTerminalType TypeToPropagate;
for (UEdGraphPin* Pin : ResolvedPins)
{
TryReadTypeToPropagate(Pin, bReadyToPropagatSetType, TypeToPropagate);
if(bReadyToPropagatSetType)
{
break;
}
}
for (UEdGraphPin* Pin : ResolvedPins)
{
TryPropagateType( Pin, TypeToPropagate, bReadyToPropagatSetType );
}
}
const FString& MapPinMetaData = TargetFunction->GetMetaData(FBlueprintMetadata::MD_MapParam);
const FString& MapKeyPinMetaData = TargetFunction->GetMetaData(FBlueprintMetadata::MD_MapKeyParam);
const FString& MapValuePinMetaData = TargetFunction->GetMetaData(FBlueprintMetadata::MD_MapValueParam);
if(!MapPinMetaData.IsEmpty() || !MapKeyPinMetaData.IsEmpty() || !MapValuePinMetaData.IsEmpty() )
{
// if the map pin has a connection infer from that, otherwise use the information on the key param and value param:
bool bReadyToPropagateKeyType = false;
FEdGraphTerminalType KeyTypeToPropagate;
bool bReadyToPropagateValueType = false;
FEdGraphTerminalType ValueTypeToPropagate;
UEdGraphPin* MapPin = MapPinMetaData.IsEmpty() ? nullptr : FindPin(MapPinMetaData);
UEdGraphPin* MapKeyPin = MapKeyPinMetaData.IsEmpty() ? nullptr : FindPin(MapKeyPinMetaData);
UEdGraphPin* MapValuePin = MapValuePinMetaData.IsEmpty() ? nullptr : FindPin(MapValuePinMetaData);
TryReadTypeToPropagate(MapPin, bReadyToPropagateKeyType, KeyTypeToPropagate);
TryReadValueTypeToPropagate(MapPin, bReadyToPropagateValueType, ValueTypeToPropagate);
TryReadTypeToPropagate(MapKeyPin, bReadyToPropagateKeyType, KeyTypeToPropagate);
TryReadTypeToPropagate(MapValuePin, bReadyToPropagateValueType, ValueTypeToPropagate);
TryPropagateType(MapPin, KeyTypeToPropagate, bReadyToPropagateKeyType);
TryPropagateType(MapKeyPin, KeyTypeToPropagate, bReadyToPropagateKeyType);
TryPropagateValueType(MapPin, ValueTypeToPropagate, bReadyToPropagateValueType);
TryPropagateType(MapValuePin, ValueTypeToPropagate, bReadyToPropagateValueType);
}
}
FText UK2Node_CallFunction::GetToolTipHeading() const
{
FText Heading = Super::GetToolTipHeading();
struct FHeadingBuilder
{
FHeadingBuilder(FText InitialHeading) : ConstructedHeading(InitialHeading) {}
void Append(FText HeadingAddOn)
{
if (ConstructedHeading.IsEmpty())
{
ConstructedHeading = HeadingAddOn;
}
else
{
ConstructedHeading = FText::Format(FText::FromString("{0}\n{1}"), HeadingAddOn, ConstructedHeading);
}
}
FText ConstructedHeading;
};
FHeadingBuilder HeadingBuilder(Super::GetToolTipHeading());
if (const UFunction* Function = GetTargetFunction())
{
if (Function->HasAllFunctionFlags(FUNC_BlueprintAuthorityOnly))
{
HeadingBuilder.Append(LOCTEXT("ServerOnlyFunc", "Server Only"));
}
if (Function->HasAllFunctionFlags(FUNC_BlueprintCosmetic))
{
HeadingBuilder.Append(LOCTEXT("ClientOnlyFunc", "Client Only"));
}
if(Function->HasMetaData(FBlueprintMetadata::MD_Latent))
{
HeadingBuilder.Append(LOCTEXT("LatentFunc", "Latent"));
}
}
return HeadingBuilder.ConstructedHeading;
}
void UK2Node_CallFunction::GetNodeAttributes( TArray<TKeyValuePair<FString, FString>>& OutNodeAttributes ) const
{
UFunction* TargetFunction = GetTargetFunction();
const FString TargetFunctionName = TargetFunction ? TargetFunction->GetName() : TEXT( "InvalidFunction" );
OutNodeAttributes.Add( TKeyValuePair<FString, FString>( TEXT( "Type" ), TEXT( "Function" ) ));
OutNodeAttributes.Add( TKeyValuePair<FString, FString>( TEXT( "Class" ), GetClass()->GetName() ));
OutNodeAttributes.Add( TKeyValuePair<FString, FString>( TEXT( "Name" ), TargetFunctionName ));
}
FText UK2Node_CallFunction::GetMenuCategory() const
{
UFunction* TargetFunction = GetTargetFunction();
if (TargetFunction != nullptr)
{
return GetDefaultCategoryForFunction(TargetFunction, FText::GetEmpty());
}
return FText::GetEmpty();
}
bool UK2Node_CallFunction::HasExternalDependencies(TArray<class UStruct*>* OptionalOutput) const
{
UFunction* Function = GetTargetFunction();
const UClass* SourceClass = Function ? Function->GetOwnerClass() : nullptr;
const UBlueprint* SourceBlueprint = GetBlueprint();
bool bResult = (SourceClass != nullptr) && (SourceClass->ClassGeneratedBy != SourceBlueprint);
if (bResult && OptionalOutput)
{
OptionalOutput->AddUnique(Function);
}
// All structures, that are required for the BP compilation, should be gathered
for(auto Pin : Pins)
{
UStruct* DepStruct = Pin ? Cast<UStruct>(Pin->PinType.PinSubCategoryObject.Get()) : nullptr;
UClass* DepClass = Cast<UClass>(DepStruct);
if (DepClass && (DepClass->ClassGeneratedBy == SourceBlueprint))
{
//Don't include self
continue;
}
if (DepStruct && !DepStruct->IsNative())
{
if (OptionalOutput)
{
OptionalOutput->AddUnique(DepStruct);
}
bResult = true;
}
}
const bool bSuperResult = Super::HasExternalDependencies(OptionalOutput);
return bSuperResult || bResult;
}
UEdGraph* UK2Node_CallFunction::GetFunctionGraph(const UEdGraphNode*& OutGraphNode) const
{
OutGraphNode = NULL;
// Search for the Blueprint owner of the function graph, climbing up through the Blueprint hierarchy
UClass* MemberParentClass = FunctionReference.GetMemberParentClass(GetBlueprintClassFromNode());
if(MemberParentClass != NULL)
{
UBlueprintGeneratedClass* ParentClass = Cast<UBlueprintGeneratedClass>(MemberParentClass);
if(ParentClass != NULL && ParentClass->ClassGeneratedBy != NULL)
{
UBlueprint* Blueprint = Cast<UBlueprint>(ParentClass->ClassGeneratedBy);
while(Blueprint != NULL)
{
UEdGraph* TargetGraph = NULL;
FName FunctionName = FunctionReference.GetMemberName();
for (UEdGraph* Graph : Blueprint->FunctionGraphs)
{
CA_SUPPRESS(28182); // warning C28182: Dereferencing NULL pointer. 'Graph' contains the same NULL value as 'TargetGraph' did.
if (Graph->GetFName() == FunctionName)
{
TargetGraph = Graph;
break;
}
}
if((TargetGraph != NULL) && !TargetGraph->HasAnyFlags(RF_Transient))
{
// Found the function graph in a Blueprint, return that graph
return TargetGraph;
}
else
{
// Did not find the function call as a graph, it may be a custom event
UK2Node_CustomEvent* CustomEventNode = NULL;
TArray<UK2Node_CustomEvent*> CustomEventNodes;
FBlueprintEditorUtils::GetAllNodesOfClass(Blueprint, CustomEventNodes);
for (UK2Node_CustomEvent* CustomEvent : CustomEventNodes)
{
if(CustomEvent->CustomFunctionName == FunctionReference.GetMemberName())
{
OutGraphNode = CustomEvent;
return CustomEvent->GetGraph();
}
}
}
ParentClass = Cast<UBlueprintGeneratedClass>(Blueprint->ParentClass);
Blueprint = ParentClass != NULL ? Cast<UBlueprint>(ParentClass->ClassGeneratedBy) : NULL;
}
}
}
return NULL;
}
bool UK2Node_CallFunction::IsStructureWildcardProperty(const UFunction* Function, const FString& PropertyName)
{
if (Function && !PropertyName.IsEmpty())
{
TArray<FString> Names;
FCustomStructureParamHelper::FillCustomStructureParameterNames(Function, Names);
if (Names.Contains(PropertyName))
{
return true;
}
}
return false;
}
bool UK2Node_CallFunction::IsWildcardProperty(const UFunction* InFunction, const UProperty* InProperty)
{
if (InProperty)
{
return FEdGraphUtilities::IsSetParam(InFunction, InProperty->GetName()) || FEdGraphUtilities::IsMapParam(InFunction, InProperty->GetName());
}
return false;
}
void UK2Node_CallFunction::AddSearchMetaDataInfo(TArray<struct FSearchTagDataPair>& OutTaggedMetaData) const
{
Super::AddSearchMetaDataInfo(OutTaggedMetaData);
if (UFunction* TargetFunction = GetTargetFunction())
{
OutTaggedMetaData.Add(FSearchTagDataPair(FFindInBlueprintSearchTags::FiB_NativeName, FText::FromString(TargetFunction->GetName())));
}
}
TSharedPtr<SWidget> UK2Node_CallFunction::CreateNodeImage() const
{
// For set, map and array functions we have a cool icon. This helps users quickly
// identify container types:
if (UFunction* TargetFunction = GetTargetFunction())
{
UEdGraphPin* NodeImagePin = FEdGraphUtilities::FindArrayParamPin(TargetFunction, this);
NodeImagePin = NodeImagePin ? NodeImagePin : FEdGraphUtilities::FindSetParamPin(TargetFunction, this);
NodeImagePin = NodeImagePin ? NodeImagePin : FEdGraphUtilities::FindMapParamPin(TargetFunction, this);
if(NodeImagePin)
{
// Find the first array param pin and bind that to our array image:
return SPinTypeSelector::ConstructPinTypeImage(NodeImagePin);
}
}
return TSharedPtr<SWidget>();
}
bool UK2Node_CallFunction::IsConnectionDisallowed(const UEdGraphPin* MyPin, const UEdGraphPin* OtherPin, FString& OutReason) const
{
bool bIsDisallowed = Super::IsConnectionDisallowed(MyPin, OtherPin, OutReason);
if (!bIsDisallowed && MyPin != nullptr)
{
if (MyPin->bNotConnectable)
{
bIsDisallowed = true;
OutReason = LOCTEXT("PinConnectionDisallowed", "This parameter is for internal use only.").ToString();
}
else if (UFunction* TargetFunction = GetTargetFunction())
{
if(
// Strictly speaking this first check is not needed, but by not disabling the connection here we get a better reason later:
( ( FEdGraphUtilities::IsSetParam(TargetFunction, MyPin->PinName) &&
(OtherPin->PinType.IsContainer() && !MyPin->PinType.bIsSet) ) ||
( FEdGraphUtilities::IsMapParam(TargetFunction, MyPin->PinName) &&
(OtherPin->PinType.IsContainer() && !MyPin->PinType.bIsMap) ) ||
( FEdGraphUtilities::IsArrayDependentParam(TargetFunction, MyPin->PinName) &&
(OtherPin->PinType.IsContainer() && !MyPin->PinType.bIsArray) )
)
&&
// make sure we don't allow connections of mismatched container types (e.g. maps to arrays)
(
OtherPin->PinType.bIsMap != MyPin->PinType.bIsMap ||
OtherPin->PinType.bIsSet != MyPin->PinType.bIsSet ||
OtherPin->PinType.bIsArray != MyPin->PinType.bIsArray
)
)
{
bIsDisallowed = true;
OutReason = LOCTEXT("PinSetConnectionDisallowed", "Containers of containers are not supported - consider wrapping a container in a Structure object").ToString();
}
}
}
return bIsDisallowed;
}
#undef LOCTEXT_NAMESPACE
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