83 lines
2.0 KiB
C++
83 lines
2.0 KiB
C++
/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file physxSoftBodyMeshDesc.cxx
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* @author enn0x
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* @date 2010-09-12
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*/
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#include "physxSoftBodyMeshDesc.h"
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#include "physxManager.h"
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/**
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* Sets the number of vertices to be stored within this soft body mesh. The
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* function allocates memory for the vertices, but it does not set any
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* vertices.
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*
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* This method must be called before any calls to set_vertex are done!
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*/
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void PhysxSoftBodyMeshDesc::
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set_num_vertices(unsigned int numVertices) {
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// Vertices
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if (_desc.vertices) {
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delete [] _vertices;
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}
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_vertices = new NxVec3[numVertices];
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_desc.numVertices = numVertices;
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_desc.vertices = _vertices;
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}
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/**
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* Sets a single vertex. You have to call the function set_num_vertices
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* before you can call this function.
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*/
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void PhysxSoftBodyMeshDesc::
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set_vertex(unsigned int idx, const LPoint3f &vert) {
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nassertv(_desc.numVertices > idx);
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_vertices[idx] = PhysxManager::point3_to_nxVec3(vert);
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}
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/**
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* Sets the number of tetrahedra to be stored in this soft body mesh.
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*
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* This method must be called before any calls to set_tetrahedron are done!
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*/
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void PhysxSoftBodyMeshDesc::
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set_num_tetrahedra(unsigned int numTetrahedra) {
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if (_desc.tetrahedra) {
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delete [] _tetrahedra;
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}
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_tetrahedra = new NxU32[4 * numTetrahedra];
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_desc.numTetrahedra = numTetrahedra;
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_desc.tetrahedra = _tetrahedra;
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}
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/**
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* Sets a single tetrahedron, by providing the three indices i1, i2, i3, i4.
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*/
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void PhysxSoftBodyMeshDesc::
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set_tetrahedron(unsigned int idx,
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unsigned int i1, unsigned int i2, unsigned int i3, unsigned int i4) {
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nassertv(_desc.numTetrahedra > idx);
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idx = 4 * idx;
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_tetrahedra[idx] = i1;
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_tetrahedra[idx + 1] = i2;
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_tetrahedra[idx + 2] = i3;
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_tetrahedra[idx + 3] = i4;
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}
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