public ObiTriangleMeshHandle GetOrCreateTriangleMesh(Mesh source)
{
ObiTriangleMeshHandle handle = new ObiTriangleMeshHandle(null);
if (source != null && !handles.TryGetValue(source, out handle))
{
var sourceTris = source.triangles;
var sourceVertices = source.vertices;
// Build a bounding interval hierarchy from the triangles:
IBounded[] t = new IBounded[sourceTris.Length / 3];
for (int i = 0; i < t.Length; ++i)
{
int t1 = sourceTris[i * 3];
int t2 = sourceTris[i * 3 + 1];
int t3 = sourceTris[i * 3 + 2];
t[i] = new Triangle(t1, t2, t3, sourceVertices[t1], sourceVertices[t2], sourceVertices[t3]);
}
var sourceBih = BIH.Build(ref t);
Triangle[] tris = Array.ConvertAll(t, x => (Triangle)x);
handle = new ObiTriangleMeshHandle(source, headers.count);
handles.Add(source, handle);
headers.Add(new TriangleMeshHeader(bihNodes.count, sourceBih.Length, triangles.count, tris.Length, vertices.count, sourceVertices.Length));
bihNodes.AddRange(sourceBih);
triangles.AddRange(tris);
vertices.AddRange(sourceVertices);
}
return(handle);
}
public ObiEdgeMeshHandle GetOrCreateEdgeMesh(EdgeCollider2D source)
{
ObiEdgeMeshHandle handle;
if (!handles.TryGetValue(source, out handle))
{
Vector2[] sourceVertices = source.points;
int[] sourceEdges = new int[source.edgeCount * 2];
for (int i = 0; i < source.edgeCount; ++i)
{
sourceEdges[i * 2] = i;
sourceEdges[i * 2 + 1] = i + 1;
}
// Build a bounding interval hierarchy from the edges:
IBounded[] t = new IBounded[source.edgeCount];
for (int i = 0; i < source.edgeCount; ++i)
{
t[i] = new Edge(i, i + 1, sourceVertices[i], sourceVertices[i + 1]);
}
var sourceBih = BIH.Build(ref t);
Edge[] edgs = Array.ConvertAll(t, x => (Edge)x);
handle = new ObiEdgeMeshHandle(source, headers.count);
handles.Add(source, handle);
headers.Add(new EdgeMeshHeader(bihNodes.count, sourceBih.Length, edges.count, edgs.Length, vertices.count, sourceVertices.Length));
bihNodes.AddRange(sourceBih);
edges.AddRange(edgs);
vertices.AddRange(sourceVertices);
}
return(handle);
}