void btTriangleMesh::addTriangle(const btVector3& vertex0,const btVector3& vertex1,const btVector3& vertex2,bool removeDuplicateVertices)
{
m_indexedMeshes[0].m_numTriangles++;
addIndex(findOrAddVertex(vertex0,removeDuplicateVertices));
addIndex(findOrAddVertex(vertex1,removeDuplicateVertices));
addIndex(findOrAddVertex(vertex2,removeDuplicateVertices));
}
/**
* Construct a extrusion object
*
* @param begin The bottom point
* @param end The top point
* @param radius The radius of the extrusion
* @param segments The number of segments to use
* @param m Material
*/
Extrusion::Extrusion(const Vector& begin, const Vector& end, double radius, uint32_t segments, Material* m) : Mesh(Mesh::MESH_PHONG,m) {
Vector direction = end - begin;
direction.normalize();
Circle b = Circle(begin,radius,direction);
Circle e = Circle(end,radius,direction);
Vector* bp = new Vector[segments]; // Points on begin circle
Vector* ep = new Vector[segments]; // Points on end circle
b.getPoints(segments,bp);
e.getPoints(segments,ep);
for(uint32_t i = 0; i < segments; i++) {
uint32_t j = (i + 1) % segments;
// TODO: Reuse vertices below
// Discs
addTriangle(findOrAddVertex(begin),findOrAddVertex(bp[j]),findOrAddVertex(bp[i]));
addTriangle(findOrAddVertex(end),findOrAddVertex(ep[i]),findOrAddVertex(ep[j]));
// Stem
addTriangle(findOrAddVertex(ep[j]),findOrAddVertex(bp[j]),findOrAddVertex(bp[i]));
addTriangle(findOrAddVertex(ep[i]),findOrAddVertex(ep[j]),findOrAddVertex(bp[i]));
}
delete [] bp;
delete [] ep;
}
