3fd0610925
git-svn-id: https://reactphysics3d.googlecode.com/svn/trunk@419 92aac97c-a6ce-11dd-a772-7fcde58d38e6
90 lines
4.3 KiB
C++
90 lines
4.3 KiB
C++
/********************************************************************************
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* ReactPhysics3D physics library, http://code.google.com/p/reactphysics3d/ *
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* Copyright (c) 2011 Daniel Chappuis *
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*********************************************************************************
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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 *
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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 FROM, *
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN *
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* THE SOFTWARE. *
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********************************************************************************/
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#ifndef EDGEEPA_H
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#define EDGEEPA_H
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// Libraries
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#include "../../mathematics/mathematics.h"
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// ReactPhysics3D namespace
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namespace reactphysics3d {
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// Class declarations
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class TriangleEPA;
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class TrianglesStore;
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/* -------------------------------------------------------------------
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Class EdgeEPA :
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This class represents an edge of the current polytope in the EPA
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algorithm.
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-------------------------------------------------------------------
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*/
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class EdgeEPA {
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private:
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TriangleEPA* ownerTriangle; // Pointer to the triangle that contains this edge
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int index; // Index of the edge in the triangle (between 0 and 2).
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// The edge with index i connect triangle vertices i and (i+1 % 3)
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public:
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EdgeEPA(); // Constructor
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EdgeEPA(TriangleEPA* ownerTriangle, int index); // Constructor
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~EdgeEPA(); // Destructor
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TriangleEPA* getOwnerTriangle() const; // Return the pointer to the owner triangle
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int getIndex() const; // Return the index of the edge in the triangle
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uint getSource() const; // Return index of the source vertex of the edge
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uint getTarget() const; // Return the index of the target vertex of the edge
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bool link(EdgeEPA edge); // Link the edge with another one
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void halfLink(EdgeEPA edge); // Half link the edge with another one
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bool computeSilhouette(const Vector3D* vertices, uint index,
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TrianglesStore triangleStore); // Compute the recursive silhouette algorithm
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};
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// Return the pointer to the owner triangle
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inline TriangleEPA* EdgeEPA::getOwnerTriangle() const {
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return ownerTriangle;
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}
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// Return the edge index
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inline int EdgeEPA::getIndex() const {
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return index;
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}
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// Return the index of the next counter-clockwise edge of the ownver triangle
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inline int indexOfNextCounterClockwiseEdge(int i) {
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return (i + 1) % 3;
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}
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// Return the index of the previous counter-clockwise edge of the ownver triangle
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inline int indexOfPreviousCounterClockwiseEdge(int i) {
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return (i + 2) % 3;
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}
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} // End of ReactPhysics3D namespace
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#endif
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