1 files changed, 53 insertions, 0 deletions
diff --git a/Source/Graphics/csg.h b/Source/Graphics/csg.h
new file mode 100644
index 00000000..177b3e11
--- /dev/null
+++ b/Source/Graphics/csg.h
@@ -0,0 +1,53 @@
+//-----------------------------------------------------------------------------
+//           Name: csg.h
+//      Developer: Wolfire Games LLC
+//    Description:
+//        License: Read below
+//-----------------------------------------------------------------------------
+//
+//
+//   Copyright 2022 Wolfire Games LLC
+//
+//   Licensed under the Apache License, Version 2.0 (the "License");
+//   you may not use this file except in compliance with the License.
+//   You may obtain a copy of the License at
+//
+//       http://www.apache.org/licenses/LICENSE-2.0
+//
+//   Unless required by applicable law or agreed to in writing, software
+//   distributed under the License is distributed on an "AS IS" BASIS,
+//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//   See the License for the specific language governing permissions and
+//   limitations under the License.
+//
+//-----------------------------------------------------------------------------
+#pragma once
+
+#include <vector>
+
+struct CSGResult {
+    std::vector<int> indices;
+    std::vector<int> vert_id;
+    std::vector<double> bary;
+    std::vector<double> verts;
+};
+
+struct CSGResultCombined {
+    CSGResult result[2][2];
+};
+
+struct CSGModelInfo {
+    std::vector<int> faces;
+    std::vector<double> verts;
+    std::vector<float> tex_coords;
+    std::vector<float> tex_coords2;
+};
+
+class BulletWorld;
+class Model;
+class mat4;
+bool CollideObjects(BulletWorld& bw, const Model &model_a, const mat4 &transform_a, const Model &model_b, const mat4 &transform_b, CSGResultCombined *results);
+void AddCSGResult(const CSGResult &result, CSGModelInfo *csg_model, const Model& model, bool flip);
+bool CheckShapeValid(const std::vector<int> &faces, const std::vector<double> &vertices);
+void MultiplyMat4Vec3D(const mat4& mat, double vec[]);
+int ModelFromCSGModelInfo(const CSGModelInfo &model_info);