Friction doesn't make sense any more, dropped that.

[vor.git] / shape.h

diff --git a/shape.h b/shape.h
index a76951d..26b3b63 100644 (file)
--- a/shape.h
+++ b/shape.h
@@ -1,11 +1,17 @@
+#ifndef VOR_SHAPE_H
+#define VOR_SHAPE_H
+
 #include <SDL/SDL.h>
 #include <stdint.h>
 
 struct shape {
        int w, h;
-       int mw;
+       int mw; // mask width (number of uint32's)
        uint32_t *mask;
+       uint32_t area;
 };
 
 void get_shape(SDL_Surface *img, struct shape *s);
 int collide(int xdiff, int ydiff, struct shape *r, struct shape *s);
+
+#endif // VOR_SHAPE_H