diff options
Diffstat (limited to 'extern/bullet2/src/BulletDynamics/Dynamics/Bullet-C-API.cpp')
-rw-r--r-- | extern/bullet2/src/BulletDynamics/Dynamics/Bullet-C-API.cpp | 59 |
1 files changed, 58 insertions, 1 deletions
diff --git a/extern/bullet2/src/BulletDynamics/Dynamics/Bullet-C-API.cpp b/extern/bullet2/src/BulletDynamics/Dynamics/Bullet-C-API.cpp index bd8e2748383..cf735569a9d 100644 --- a/extern/bullet2/src/BulletDynamics/Dynamics/Bullet-C-API.cpp +++ b/extern/bullet2/src/BulletDynamics/Dynamics/Bullet-C-API.cpp @@ -23,7 +23,7 @@ subject to the following restrictions: #include "Bullet-C-Api.h" #include "btBulletDynamicsCommon.h" #include "LinearMath/btAlignedAllocator.h" - +#include "LinearMath/btConvexHullComputer.h" #include "LinearMath/btVector3.h" @@ -403,3 +403,60 @@ double plNearestPoints(float p1[3], float p2[3], float p3[3], float q1[3], float return -1.0f; } +// Convex hull +plConvexHull plConvexHullCompute(float (*coords)[3], int count) +{ + btConvexHullComputer *computer = new btConvexHullComputer; + computer->compute(reinterpret_cast< float* >(coords), + sizeof(*coords), count, 0, 0); + return reinterpret_cast<plConvexHull>(computer); +} + +int plConvexHullNumVertices(plConvexHull hull) +{ + btConvexHullComputer *computer(reinterpret_cast< btConvexHullComputer* >(hull)); + return computer->vertices.size(); +} + +int plConvexHullNumFaces(plConvexHull hull) +{ + btConvexHullComputer *computer(reinterpret_cast< btConvexHullComputer* >(hull)); + return computer->faces.size(); +} + +void plConvexHullGetVertex(plConvexHull hull, int n, float coords[3], + int *original_index) +{ + btConvexHullComputer *computer(reinterpret_cast< btConvexHullComputer* >(hull)); + const btVector3 &v(computer->vertices[n]); + coords[0] = v[0]; + coords[1] = v[1]; + coords[2] = v[2]; + (*original_index) = computer->original_vertex_index[n]; +} + +int plConvexHullGetFaceSize(plConvexHull hull, int n) +{ + btConvexHullComputer *computer(reinterpret_cast< btConvexHullComputer* >(hull)); + const btConvexHullComputer::Edge *e_orig, *e; + int count; + + for (e_orig = &computer->edges[computer->faces[n]], e = e_orig, count = 0; + count == 0 || e != e_orig; + e = e->getNextEdgeOfFace(), count++); + return count; +} + +void plConvexHullGetFaceVertices(plConvexHull hull, int n, int *vertices) +{ + btConvexHullComputer *computer(reinterpret_cast< btConvexHullComputer* >(hull)); + const btConvexHullComputer::Edge *e_orig, *e; + int count; + + for (e_orig = &computer->edges[computer->faces[n]], e = e_orig, count = 0; + count == 0 || e != e_orig; + e = e->getNextEdgeOfFace(), count++) + { + vertices[count] = e->getTargetVertex(); + } +} |