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70 lines
3.3 KiB
C++
70 lines
3.3 KiB
C++
// Copyright 1998-2018 Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "CoreMinimal.h"
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#include "EngineDefines.h"
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#include "MeshEditorCommands.h"
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#include "EditableMesh.h"
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#include "GeometryCollection/GeometryCollectionObject.h"
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#include "GeometryCollection/GeometryCollectionBoneNode.h"
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#include "GeometryCollection/GeometryCollectionComponent.h"
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#include "MeshFractureSettings.h"
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DECLARE_LOG_CATEGORY_EXTERN(LogGeometryCommandCommon, Log, All);
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/** Common functionality between Fracture & Cluster commands */
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class FGeometryCollectionCommandCommon
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{
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protected:
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/** Try Get the Geometry Collection Component from the editable mesh submesh address, can return nullptr if the editable mesh is not from a Geometry Collection */
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UGeometryCollectionComponent* GetGeometryCollectionComponent(UEditableMesh* SourceMesh);
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/** GetStatic mesh from editable mesh */
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UStaticMesh* GetStaticMesh(UEditableMesh* SourceMesh);
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/** Get the actor associated with this editable mesh */
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AActor* GetEditableMeshActor(UEditableMesh* EditableMesh);
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/** Find the editable mesh associated with this actor */
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UEditableMesh* GetEditableMeshForActor(AActor* Actor, TArray<UEditableMesh *>& SelectedMeshes);
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/** Create a Geometry Actor */
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class AGeometryCollectionActor* CreateNewGeometryActor(const FString& Name, const FTransform& Transform, UEditableMesh* SourceMesh);
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/** Create a geomerty Collection asset */
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class UPackage* CreateGeometryCollectionPackage(UGeometryCollection*& GeometryCollection);
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/** Where fracturing is concerned we expect a single parent root node */
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void AddSingleRootNodeIfRequired(UGeometryCollection* GeometryCollection);
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/** Add fracturing attributes to geometry collection */
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void AddAdditionalAttributesIfRequired(UGeometryCollection* OutGeometryCollection);
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/** Remove original actor from world is an option when fracturing meshes since a new Geometry Collection actor is created at this time */
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void RemoveActor(AActor* Actor);
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/** Debug logging of geometry collection details */
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void LogHierarchy(const UGeometryCollection* GeometryCollection);
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/** Update Exploded view from UI slider position */
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void UpdateExplodedView(class IMeshEditorModeEditingContract &MeshEditorMode, EViewResetType ResetType);
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/** The fracture system expects there to be only one root */
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int GetRootBone(const UGeometryCollection* GeometryCollection);
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/** Appen all the selected meshes to a geometry collection */
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void AppendMeshesToGeometryCollection(TArray<UEditableMesh*>& SelectedMeshes, UEditableMesh* SourceMesh, FTransform &SourceActorTransform, UGeometryCollection* GeometryCollection, bool DeleteSourceMesh, TArray<int32>& OutNewNodeElements);
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/** Merge two lists of selections into one */
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void MergeSelections(const UGeometryCollectionComponent* SourceComponent, const TArray<int32>& SelectionB, TArray<int32>& MergedSelectionOut);
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/** Determine center of bone by combining centres of child geometry nodes */
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void GetCenterOfBone(UGeometryCollection* GeometryCollection, int Element, FVector& CentreOut);
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/** recursively find centres of child geometry nodes */
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void CombineCenterOfGeometryRecursive(TArray<FTransform>& Transforms, const TManagedArray<FGeometryCollectionBoneNode>& Hierarchy, int Element, FVector& SumCOMOut, int& CountOut);
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/** Get array of selected actors */
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TArray<AActor*> GetSelectedActors();
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}; |