1 files changed, 18 insertions, 0 deletions
diff --git a/src/3d/physics.h b/src/3d/physics.h
new file mode 100644
index 0000000..a014acd
--- /dev/null
+++ b/src/3d/physics.h
@@ -0,0 +1,18 @@
+// This file is part of the 64k demo project.
+// It implements a lightweight SDF-based physics engine.
+
+#pragma once
+
+#include "3d/scene.h"
+#include "util/mini_math.h"
+
+class PhysicsSystem {
+ public:
+  vec3 gravity = {0.0f, -9.81f, 0.0f};
+
+  void update(Scene& scene, float dt);
+
+ private:
+  void resolve_collision(Object3D& a, Object3D& b);
+  float sample_sdf(const Object3D& obj, vec3 world_p);
+};