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108 lines
4.3 KiB
C++
108 lines
4.3 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "Templates/SubclassOf.h"
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#include "AI/Navigation/NavigationTypes.h"
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#include "LinkGenerationConfig.generated.h"
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class UBaseGeneratedNavLinksProxy;
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class UNavAreaBase;
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#if WITH_RECAST
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struct dtNavLinkBuilderJumpDownConfig;
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struct dtNavLinkBuilderJumpOverConfig;
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#endif //WITH_RECAST
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UENUM(meta = (Bitflags, UseEnumValuesAsMaskValuesInEditor = "true"))
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enum class ENavLinkBuilderFlags : uint16
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{
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CreateCenterPointLink = 1 << 0,
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CreateExtremityLink = 1 << 1,
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};
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ENUM_CLASS_FLAGS(ENavLinkBuilderFlags);
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/** Experimental configuration to generate vertical links. */
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USTRUCT()
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struct FNavLinkGenerationJumpDownConfig
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{
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GENERATED_BODY()
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FNavLinkGenerationJumpDownConfig();
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/** Should this config be used to generate links. */
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UPROPERTY(Config) // @todo Hidden for now. Since there is currently only one config, it has no real usage.
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bool bEnabled = true;
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/** Horizontal length of the jump.
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* How far from the starting point we will look for ground. */
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UPROPERTY(EditAnywhere, Config, Category = Settings, meta=(UIMin=0, ClampMin=0))
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float JumpLength = 150.f;
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/** How far from the navmesh edge is the jump started. */
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UPROPERTY(EditAnywhere, Config, Category = Settings, meta=(UIMin=0, ClampMin=0))
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float JumpDistanceFromEdge = 10.f;
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/** How far below the starting height we want to look for landing ground. */
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UPROPERTY(EditAnywhere, Config, Category = Settings, meta=(UIMin=0, ClampMin=0))
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float JumpMaxDepth = 150.f;
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/** Peak height relative to the height of the starting point. */
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UPROPERTY(EditAnywhere, Config, Category = Settings, meta=(UIMin=0, ClampMin=0))
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float JumpHeight = 50.f;
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/** Tolerance at both ends of the jump to find ground. */
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UPROPERTY(EditAnywhere, Config, Category = Settings, meta=(UIMin=0, ClampMin=0))
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float JumpEndsHeightTolerance = 80.f;
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/** Value multiplied by CellSize to find the distance between sampling trajectories. Default is 1.
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* Larger values improve generation speed but might introduce sampling errors. */
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UPROPERTY(EditAnywhere, Config, Category = Settings, meta=(UIMin=1, ClampMin=1))
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float SamplingSeparationFactor = 1.f;
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/** When filtering similar links, it's the distance used to compare between segment endpoints to match similar links.
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* Use greater distance for more filtering (0 to deactivate filtering). */
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UPROPERTY(EditAnywhere, Config, Category = Settings, meta=(UIMin=0, ClampMin=0))
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float FilterDistanceThreshold = 80.f;
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/** Flags used to indicate how links will be added. */
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UPROPERTY(EditAnywhere, Config, Category = Settings, meta = (Bitmask, BitmaskEnum = "/Script/NavigationSystem.ENavLinkBuilderFlags"))
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uint16 LinkBuilderFlags = (uint16)ENavLinkBuilderFlags::CreateCenterPointLink;
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/** Area class for links generated by this configuration. */
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UPROPERTY(EditAnywhere, Config, Category = Settings)
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TSubclassOf<UNavAreaBase> AreaClass;
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/** Class used to handle links made with this configuration.
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* Using this allows to implement custom behaviors when using navlinks, for example during the pathfollow.
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* Note that having a proxy is not required for successful navlink pathfinding,
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* but it does allow for custom behavior at the start and the end of a given navlink.
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* This implies that using LinkProxyClass is optional, and it can remain empty (the default value).
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* @see INavLinkCustomInterface
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* @see UGeneratedNavLinksProxy
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*/
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UPROPERTY(EditAnywhere, Category= Settings)
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TSubclassOf<UBaseGeneratedNavLinksProxy> LinkProxyClass;
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/** Identifier used identify the current proxy handler. All links generated through this config will use the same handler. */
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UPROPERTY()
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FNavLinkId LinkProxyId;
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/** Current proxy. The proxy instance is build from the LinkProxyClass (provided it's not null).
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* A proxy will be created if a @see LinkProxyClass is used.
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*/
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UPROPERTY(Transient)
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TObjectPtr<UBaseGeneratedNavLinksProxy> LinkProxy = nullptr;
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/** Is the link proxy registered to the navigation system CustomNavLinksMap.
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* Registration occurs on PostRegisterAllComponents or on PostLoadPreRebuild if a new proxy was created. */
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UPROPERTY(Transient)
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bool bLinkProxyRegistered = false;
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#if WITH_RECAST
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/** Copy configuration to dtNavLinkBuilderJumpDownConfig. */
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void CopyToDetourConfig(dtNavLinkBuilderJumpDownConfig& OutDetourConfig) const;
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#endif //WITH_RECAST
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};
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