diff --git a/core/src/physics.h b/core/src/physics.h
new file mode 100644
index 0000000..0bc1569
--- /dev/null
+++ b/core/src/physics.h
@@ -0,0 +1,30 @@
+#ifndef _fencer_physics_h
+#define _fencer_physics_h
+
+#include "vmath.h"
+#include "transform.h"
+#include "stdint.h"
+#include "physics_entity.h"
+
+typedef uint32_t PhysicsMask;
+
+typedef struct Collision {
+    struct Collider* other;
+
+    Vector point;
+    Vector normal;
+
+    Vector velocity;
+    Vector penetration_vector;
+
+    Vector edge_left;
+    Vector edge_right;
+} Collision;
+
+typedef struct PhysicsQuery {
+    Shape* shape;
+    Transform* transform;
+    PhysicsMask mask;
+} PhysicsQuery;
+
+#endif // !_fencer_physics_h