Added methods to query the current mouse position.

mouse.go

@@ -52,3 +52,15 @@ func IsAnyMouseButtonDown(buttons ...MouseButton) bool {
 	}
 	return false
 }
+
+func MousePosition() (int, int) {
+	var state C.ALLEGRO_MOUSE_STATE
+	C.al_get_mouse_state(&state)
+	return int(state.x), int(state.y)
+}
+
+func MousePositionScreen() (int, int, bool) {
+	var x, y C.int
+	var result = C.al_get_mouse_cursor_position(&x, &y)
+	return int(x), int(y), bool(result)
+}