Andron666
215 lines
8.3 KiB
C++
215 lines
8.3 KiB
C++
/*
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* Copyright (c) <2017> Side Effects Software Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*/
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#pragma once
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#include "HoudiniGeoPartObject.h"
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#include "HoudiniAssetInstanceInput.h"
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#include "HoudiniAssetInstanceInputField.generated.h"
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class UStaticMesh;
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class UMaterialInterface;
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class UHoudiniAssetComponent;
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UCLASS()
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class HOUDINIENGINERUNTIME_API UHoudiniAssetInstanceInputField : public UObject
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{
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friend class UHoudiniAssetInstanceInput;
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GENERATED_UCLASS_BODY()
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public:
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/** Create an instance of input field. **/
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static UHoudiniAssetInstanceInputField * Create(
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UObject * InPrimaryObject,
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UHoudiniAssetInstanceInput * InHoudiniAssetInstanceInput,
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const FHoudiniGeoPartObject & HoudiniGeoPartObject );
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/** Create an instance of input field from another input field. **/
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static UHoudiniAssetInstanceInputField * Create(
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UObject * InPrimaryObject,
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const UHoudiniAssetInstanceInputField * OtherInputField );
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/** UObject methods. **/
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public:
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virtual void Serialize( FArchive & Ar ) override;
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static void AddReferencedObjects( UObject * InThis, FReferenceCollector & Collector );
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virtual void BeginDestroy() override;
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#if WITH_EDITOR
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virtual void PostEditUndo() override;
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#endif
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public:
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/** Return geo part object associated with this field. **/
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const FHoudiniGeoPartObject & GetHoudiniGeoPartObject() const;
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/** Refresh state based on the given geo part object */
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void SetGeoPartObject( const FHoudiniGeoPartObject & InHoudiniGeoPartObject );
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/** Return original static mesh. **/
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UObject* GetOriginalObject() const;
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/** Return the static mesh associated with an instance variation. **/
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UObject * GetInstanceVariation( int32 VariationIndex ) const;
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/** Add a variation to the instancing. **/
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void AddInstanceVariation( UObject * InstancedObject, int32 VariationIdx );
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/** Replace the instance variation in a particular slot. **/
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void ReplaceInstanceVariation( UObject * InObject, int32 Index );
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/** Remove a variation from instancing **/
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void RemoveInstanceVariation( int32 VariationIdx );
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/** Returns the number of instance variations. **/
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int32 InstanceVariationCount() const;
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/** Given a static mesh, find which slot(s) it occupies in the instance variations. **/
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void FindObjectIndices( UObject * InStaticMesh, TArray< int32 > & Indices );
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/** Get material replacements. **/
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bool GetMaterialReplacementMeshes(
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UMaterialInterface * Material,
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TMap< UStaticMesh *, int32 > & MaterialReplacementsMap );
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/** After duplicating this field we need to fix up the referenced external objects */
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void FixInstancedObjects( const TMap<UObject*, UObject*>& ReplacementMap );
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/** Get rotator used by this field. **/
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const FRotator & GetRotationOffset( int32 VariationIdx ) const;
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/** Set rotation offset used by this field. **/
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void SetRotationOffset( const FRotator & Rotator, int32 VariationIdx );
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/** Get scale used by this field. **/
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const FVector & GetScaleOffset( int32 VariationIdx ) const;
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/** Set scale used by this field. **/
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void SetScaleOffset( const FVector & InScale, int32 VariationIdx );
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/** Return true if all fields are scaled linearly. **/
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bool AreOffsetsScaledLinearly( int32 VariationIdx ) const;
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/** Set whether offsets are scaled linearly. **/
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void SetLinearOffsetScale( bool bEnabled, int32 VariationIdx );
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/** Return true if original static mesh is used. **/
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bool IsOriginalObjectUsed( int32 VariationIdx ) const;
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/** Return corresponding instanced static mesh component. **/
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class USceneComponent * GetInstancedComponent( int32 VariationIdx ) const;
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/** Return transformations of all instances used by the variation **/
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const TArray< FTransform > & GetInstancedTransforms( int32 VariationIdx ) const;
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/** Return the array of transforms for all variations **/
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FORCEINLINE const TArray< FTransform > & GetInstancedTransforms() { return InstancedTransforms; }
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/** Return transformations of all instances used by the variation **/
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FORCEINLINE const TArray< FLinearColor > & GetInstancedColors(int32 VariationIdx) const { return VariationInstanceColorOverrideArray[VariationIdx]; }
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/** Return the array of transforms for all variations **/
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FORCEINLINE const TArray< FLinearColor > & GetInstancedColors() { return InstanceColorOverride; }
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/** Return the array of processed transforms **/
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void GetProcessedTransforms(TArray<FTransform>& ProcessedTransform, const int32& VariationIdx) const;
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/** Recreates render states for instanced static mesh component. **/
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void RecreateRenderState();
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/** Recreates physics states for instanced static mesh component. **/
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void RecreatePhysicsState();
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/** Updates the uproperty attributes for the generated instanced components **/
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void UpdateInstanceUPropertyAttributes();
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protected:
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/** Create instanced component for this field. **/
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void AddInstanceComponent( int32 VariationIdx );
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/** Set transforms for this field. **/
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void SetInstanceTransforms( const TArray< FTransform > & ObjectTransforms );
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/** Update relative transform for this field. **/
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void UpdateRelativeTransform();
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/** Update instance transformations. **/
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void UpdateInstanceTransforms( bool RecomputeVariationAssignments );
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protected:
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/** Original object used by the instancer. **/
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UObject* OriginalObject;
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/** Currently used Objects */
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TArray< UObject* > InstancedObjects;
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/** Used instanced actor component. **/
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TArray< USceneComponent * > InstancerComponents;
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/** Parent Houdini asset component. **/
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UObject * HoudiniAssetComponent;
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/** Owner input. **/
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UHoudiniAssetInstanceInput * HoudiniAssetInstanceInput;
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/** Transforms, one for each instance. **/
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TArray< FTransform > InstancedTransforms;
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/** Assignment of Transforms to each variation **/
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TArray< TArray< FTransform > > VariationTransformsArray;
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/** Color overrides, one per instance **/
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TArray<FLinearColor> InstanceColorOverride;
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/** Per-variation color override assignments */
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TArray< TArray< FLinearColor > > VariationInstanceColorOverrideArray;
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/** Corresponding geo part object. **/
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FHoudiniGeoPartObject HoudiniGeoPartObject;
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/** Rotation offset for instanced component. **/
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TArray< FRotator > RotationOffsets;
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/** Scale offset for instanced component. **/
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TArray< FVector > ScaleOffsets;
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/** Whether to scale linearly for all fields. **/
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TArray< bool > bScaleOffsetsLinearlyArray;
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/** Flags used by this input field. **/
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uint32 HoudiniAssetInstanceInputFieldFlagsPacked;
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};
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/** Functor used to sort instance input fields. **/
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struct HOUDINIENGINERUNTIME_API FHoudiniAssetInstanceInputFieldSortPredicate
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{
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bool operator()( const UHoudiniAssetInstanceInputField & A, const UHoudiniAssetInstanceInputField & B ) const;
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};
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