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123 lines
3.9 KiB
C
123 lines
3.9 KiB
C
// Copyright 1998-2015 Epic Games, Inc. All Rights Reserved.
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#pragma once
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/*=============================================================================
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GeomFitUtils.h: Utilities for fitting collision models to static meshes.
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=============================================================================*/
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// k-DOP (k-Discrete Oriented Polytopes) Direction Vectors
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#define RCP_SQRT2 (0.70710678118654752440084436210485f)
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#define RCP_SQRT3 (0.57735026918962576450914878050196f)
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const FVector KDopDir10X[10] =
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{
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FVector( 1.f, 0.f, 0.f),
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FVector(-1.f, 0.f, 0.f),
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FVector( 0.f, 1.f, 0.f),
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FVector( 0.f,-1.f, 0.f),
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FVector( 0.f, 0.f, 1.f),
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FVector( 0.f, 0.f,-1.f),
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FVector( 0.f, RCP_SQRT2, RCP_SQRT2),
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FVector( 0.f,-RCP_SQRT2, -RCP_SQRT2),
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FVector( 0.f, RCP_SQRT2, -RCP_SQRT2),
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FVector( 0.f,-RCP_SQRT2, RCP_SQRT2)
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};
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const FVector KDopDir10Y[10] =
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{
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FVector( 1.f, 0.f, 0.f),
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FVector(-1.f, 0.f, 0.f),
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FVector( 0.f, 1.f, 0.f),
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FVector( 0.f,-1.f, 0.f),
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FVector( 0.f, 0.f, 1.f),
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FVector( 0.f, 0.f,-1.f),
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FVector( RCP_SQRT2, 0.f, RCP_SQRT2),
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FVector(-RCP_SQRT2, 0.f, -RCP_SQRT2),
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FVector( RCP_SQRT2, 0.f, -RCP_SQRT2),
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FVector(-RCP_SQRT2, 0.f, RCP_SQRT2)
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};
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const FVector KDopDir10Z[10] =
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{
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FVector( 1.f, 0.f, 0.f),
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FVector(-1.f, 0.f, 0.f),
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FVector( 0.f, 1.f, 0.f),
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FVector( 0.f,-1.f, 0.f),
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FVector( 0.f, 0.f, 1.f),
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FVector( 0.f, 0.f,-1.f),
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FVector( RCP_SQRT2, RCP_SQRT2, 0.f),
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FVector(-RCP_SQRT2, -RCP_SQRT2, 0.f),
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FVector( RCP_SQRT2, -RCP_SQRT2, 0.f),
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FVector(-RCP_SQRT2, RCP_SQRT2, 0.f)
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};
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const FVector KDopDir18[18] =
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{
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FVector( 1.f, 0.f, 0.f),
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FVector(-1.f, 0.f, 0.f),
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FVector( 0.f, 1.f, 0.f),
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FVector( 0.f,-1.f, 0.f),
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FVector( 0.f, 0.f, 1.f),
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FVector( 0.f, 0.f,-1.f),
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FVector( 0.f, RCP_SQRT2, RCP_SQRT2),
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FVector( 0.f,-RCP_SQRT2, -RCP_SQRT2),
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FVector( 0.f, RCP_SQRT2, -RCP_SQRT2),
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FVector( 0.f,-RCP_SQRT2, RCP_SQRT2),
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FVector( RCP_SQRT2, 0.f, RCP_SQRT2),
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FVector(-RCP_SQRT2, 0.f, -RCP_SQRT2),
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FVector( RCP_SQRT2, 0.f, -RCP_SQRT2),
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FVector(-RCP_SQRT2, 0.f, RCP_SQRT2),
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FVector( RCP_SQRT2, RCP_SQRT2, 0.f),
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FVector(-RCP_SQRT2, -RCP_SQRT2, 0.f),
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FVector( RCP_SQRT2, -RCP_SQRT2, 0.f),
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FVector(-RCP_SQRT2, RCP_SQRT2, 0.f)
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};
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const FVector KDopDir26[26] =
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{
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FVector( 1.f, 0.f, 0.f),
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FVector(-1.f, 0.f, 0.f),
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FVector( 0.f, 1.f, 0.f),
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FVector( 0.f,-1.f, 0.f),
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FVector( 0.f, 0.f, 1.f),
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FVector( 0.f, 0.f,-1.f),
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FVector( 0.f, RCP_SQRT2, RCP_SQRT2),
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FVector( 0.f,-RCP_SQRT2, -RCP_SQRT2),
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FVector( 0.f, RCP_SQRT2, -RCP_SQRT2),
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FVector( 0.f,-RCP_SQRT2, RCP_SQRT2),
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FVector( RCP_SQRT2, 0.f, RCP_SQRT2),
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FVector(-RCP_SQRT2, 0.f, -RCP_SQRT2),
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FVector( RCP_SQRT2, 0.f, -RCP_SQRT2),
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FVector(-RCP_SQRT2, 0.f, RCP_SQRT2),
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FVector( RCP_SQRT2, RCP_SQRT2, 0.f),
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FVector(-RCP_SQRT2, -RCP_SQRT2, 0.f),
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FVector( RCP_SQRT2, -RCP_SQRT2, 0.f),
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FVector(-RCP_SQRT2, RCP_SQRT2, 0.f),
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FVector( RCP_SQRT3, RCP_SQRT3, RCP_SQRT3),
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FVector( RCP_SQRT3, RCP_SQRT3, -RCP_SQRT3),
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FVector( RCP_SQRT3, -RCP_SQRT3, RCP_SQRT3),
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FVector( RCP_SQRT3, -RCP_SQRT3, -RCP_SQRT3),
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FVector(-RCP_SQRT3, RCP_SQRT3, RCP_SQRT3),
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FVector(-RCP_SQRT3, RCP_SQRT3, -RCP_SQRT3),
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FVector(-RCP_SQRT3, -RCP_SQRT3, RCP_SQRT3),
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FVector(-RCP_SQRT3, -RCP_SQRT3, -RCP_SQRT3),
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};
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// Utilities
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UNREALED_API int32 GenerateKDopAsSimpleCollision(UStaticMesh* StaticMesh, const TArray<FVector> &dirs);
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UNREALED_API int32 GenerateBoxAsSimpleCollision(UStaticMesh* StaticMesh);
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UNREALED_API int32 GenerateSphereAsSimpleCollision(UStaticMesh* StaticMesh);
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UNREALED_API int32 GenerateSphylAsSimpleCollision(UStaticMesh* StaticMesh);
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UNREALED_API void ComputeBoundingBox(UStaticMesh* StaticMesh, FVector& Center, FVector& Extents);
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/**
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* Refresh Collision Change
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*
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* Collision has been changed, so it will need to recreate physics state to reflect it
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* Utilities functions to propagate BodySetup change for StaticMesh
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*
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* @param StaticMesh StaticMesh that collision has been changed for
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*/
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UNREALED_API void RefreshCollisionChange(const UStaticMesh* StaticMesh);
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