1 files changed, 10 insertions, 5 deletions
diff --git a/pong.h b/pong.h
index 8520db3..3bdc715 100644
--- a/pong.h
+++ b/pong.h
@@ -3,15 +3,20 @@
 
 #include <stdint.h>
 
-typedef struct point_t {
+constexpr int PADDLE_WIDTH = 16;
+constexpr int PADDLE_HEIGHT = 128;
+constexpr int BALL_WIDTH = 16;
+constexpr int BALL_HEIGHT = 16;
+
+typedef struct vector_t {
     int32_t x;
     int32_t y;
-} point_t;
+} vector_t;
 
 /* paddles have a fixed x position and velocity */
 struct moveable_t {
-    point_t position;
-    point_t velocity;
+    vector_t position;
+    vector_t velocity;
     uint8_t width;
     uint8_t height;
 };
@@ -19,7 +24,7 @@ struct moveable_t {
 typedef struct moveable_t ball_t;
 typedef struct moveable_t paddle_t;
 
-void UpdatePosition ( point_t * const position, const point_t velocity );
+void UpdatePosition ( vector_t * const position, const vector_t velocity );
 bool CheckMoveableCollision ( const struct moveable_t m1, const struct moveable_t m2 );
 bool CheckLeftWallCollision ( const struct moveable_t m );
 bool CheckRightWallCollision ( const struct moveable_t m );