diff options
Diffstat (limited to 'scene/resources/mesh.cpp')
| -rw-r--r-- | scene/resources/mesh.cpp | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/scene/resources/mesh.cpp b/scene/resources/mesh.cpp index 85018f38d7..67639858ce 100644 --- a/scene/resources/mesh.cpp +++ b/scene/resources/mesh.cpp @@ -37,6 +37,8 @@ #include <stdlib.h> +Mesh::ConvexDecompositionFunc Mesh::convex_composition_function = NULL; + Ref<TriangleMesh> Mesh::generate_triangle_mesh() const { if (triangle_mesh.is_valid()) @@ -543,6 +545,49 @@ void Mesh::clear_cache() const { debug_lines.clear(); } +Vector<Ref<Shape> > Mesh::convex_decompose() const { + + ERR_FAIL_COND_V(!convex_composition_function, Vector<Ref<Shape> >()); + + PoolVector<Face3> faces = get_faces(); + Vector<Face3> f3; + f3.resize(faces.size()); + PoolVector<Face3>::Read f = faces.read(); + for (int i = 0; i < f3.size(); i++) { + f3.write[i] = f[i]; + } + + Vector<Vector<Face3> > decomposed = convex_composition_function(f3); + + Vector<Ref<Shape> > ret; + + for (int i = 0; i < decomposed.size(); i++) { + Set<Vector3> points; + for (int j = 0; j < decomposed[i].size(); j++) { + points.insert(decomposed[i][j].vertex[0]); + points.insert(decomposed[i][j].vertex[1]); + points.insert(decomposed[i][j].vertex[2]); + } + + PoolVector<Vector3> convex_points; + convex_points.resize(points.size()); + { + PoolVector<Vector3>::Write w = convex_points.write(); + int idx = 0; + for (Set<Vector3>::Element *E = points.front(); E; E = E->next()) { + w[idx++] = E->get(); + } + } + + Ref<ConvexPolygonShape> shape; + shape.instance(); + shape->set_points(convex_points); + ret.push_back(shape); + } + + return ret; +} + Mesh::Mesh() { } |