mirror of
https://github.com/TorqueGameEngines/Torque3D.git
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114 lines
3 KiB
C++
114 lines
3 KiB
C++
//-----------------------------------------------------------------------------
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// Copyright (c) 2012 GarageGames, LLC
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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
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// deal in the Software without restriction, including without limitation the
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// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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// sell 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
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// all 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
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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// IN THE SOFTWARE.
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//-----------------------------------------------------------------------------
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#ifndef _POLYTOPE_H_
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#define _POLYTOPE_H_
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#ifndef _TVECTOR_H_
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#include "core/util/tVector.h"
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#endif
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//----------------------------------------------------------------------------
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class SimObject;
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//----------------------------------------------------------------------------
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class Polytope
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{
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// Convex Polyhedron
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public:
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struct Vertex {
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Point3F point;
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/// Temp BSP clip info
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S32 side;
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};
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struct Edge {
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S32 vertex[2];
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S32 face[2];
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S32 next;
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};
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struct Face {
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PlaneF plane;
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S32 original;
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/// Temp BSP clip info
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S32 vertex;
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};
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struct Volume
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{
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S32 edgeList;
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S32 material;
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SimObject* object;
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};
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struct StackElement
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{
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S32 edgeList;
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const BSPNode *node;
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};
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struct Collision {
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SimObject* object;
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S32 material;
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PlaneF plane;
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Point3F point;
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F32 distance;
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Collision()
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{
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object = NULL;
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material = 0;
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distance = 0.0;
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}
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};
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typedef Vector<Edge> EdgeList;
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typedef Vector<Face> FaceList;
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typedef Vector<Vertex> VertexList;
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typedef Vector<Volume> VolumeList;
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typedef Vector<StackElement> VolumeStack;
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//
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S32 sideCount;
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EdgeList mEdgeList;
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FaceList mFaceList;
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VertexList mVertexList;
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VolumeList mVolumeList;
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private:
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bool intersect(const PlaneF& plane,const Point3F& sp,const Point3F& ep);
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public:
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//
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Polytope();
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void buildBox(const MatrixF& transform,const Box3F& box);
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void intersect(SimObject*, const BSPNode* node);
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inline bool didIntersect() { return mVolumeList.size() > 1; }
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void extrudeFace(S32 fi,const VectorF& vec,Polytope* out);
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bool findCollision(const VectorF& vec,Polytope::Collision *best);
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};
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#endif
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