108 lines
3.1 KiB
C++
108 lines
3.1 KiB
C++
/* SPDX-FileCopyrightText: 2020 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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/** \file
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* \ingroup intern_rigidbody
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*/
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#include "LinearMath/btConvexHullComputer.h"
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#include "RBI_hull_api.h"
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plConvexHull plConvexHullCompute(float (*coords)[3], int count)
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{
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btConvexHullComputer *computer = new btConvexHullComputer;
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computer->compute(reinterpret_cast<float *>(coords), sizeof(*coords), count, 0, 0);
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return reinterpret_cast<plConvexHull>(computer);
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}
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void plConvexHullDelete(plConvexHull hull)
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{
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btConvexHullComputer *computer(reinterpret_cast<btConvexHullComputer *>(hull));
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delete computer;
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}
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int plConvexHullNumVertices(plConvexHull hull)
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{
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btConvexHullComputer *computer(reinterpret_cast<btConvexHullComputer *>(hull));
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return computer->vertices.size();
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}
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int plConvexHullNumLoops(plConvexHull hull)
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{
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btConvexHullComputer *computer(reinterpret_cast<btConvexHullComputer *>(hull));
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return computer->edges.size();
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}
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int plConvexHullNumFaces(plConvexHull hull)
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{
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btConvexHullComputer *computer(reinterpret_cast<btConvexHullComputer *>(hull));
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return computer->faces.size();
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}
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void plConvexHullGetVertex(plConvexHull hull, int n, float coords[3], int *original_index)
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{
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btConvexHullComputer *computer(reinterpret_cast<btConvexHullComputer *>(hull));
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const btVector3 &v(computer->vertices[n]);
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coords[0] = v[0];
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coords[1] = v[1];
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coords[2] = v[2];
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(*original_index) = computer->original_vertex_index[n];
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}
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void plConvexHullGetLoop(plConvexHull hull, int n, int *v_from, int *v_to)
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{
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btConvexHullComputer *computer(reinterpret_cast<btConvexHullComputer *>(hull));
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(*v_from) = computer->edges[n].getSourceVertex();
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(*v_to) = computer->edges[n].getTargetVertex();
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}
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int plConvexHullGetReversedLoopIndex(plConvexHull hull, int n)
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{
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btConvexHullComputer *computer(reinterpret_cast<btConvexHullComputer *>(hull));
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return computer->edges[n].getReverseEdge() - &computer->edges[0];
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}
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int plConvexHullGetFaceSize(plConvexHull hull, int n)
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{
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btConvexHullComputer *computer(reinterpret_cast<btConvexHullComputer *>(hull));
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const btConvexHullComputer::Edge *e_orig, *e;
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int count;
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for (e_orig = &computer->edges[computer->faces[n]], e = e_orig, count = 0;
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count == 0 || e != e_orig;
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e = e->getNextEdgeOfFace(), count++)
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{
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;
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}
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return count;
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}
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void plConvexHullGetFaceLoops(plConvexHull hull, int n, int *loops)
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{
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btConvexHullComputer *computer(reinterpret_cast<btConvexHullComputer *>(hull));
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const btConvexHullComputer::Edge *e_orig, *e;
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int count;
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for (e_orig = &computer->edges[computer->faces[n]], e = e_orig, count = 0;
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count == 0 || e != e_orig;
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e = e->getNextEdgeOfFace(), count++)
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{
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loops[count] = e - &computer->edges[0];
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}
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}
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void plConvexHullGetFaceVertices(plConvexHull hull, int n, int *vertices)
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{
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btConvexHullComputer *computer(reinterpret_cast<btConvexHullComputer *>(hull));
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const btConvexHullComputer::Edge *e_orig, *e;
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int count;
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for (e_orig = &computer->edges[computer->faces[n]], e = e_orig, count = 0;
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count == 0 || e != e_orig;
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e = e->getNextEdgeOfFace(), count++)
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{
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vertices[count] = e->getTargetVertex();
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}
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}
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