--- a/skaapsteker/sprites/base.py	Sat Apr 09 14:39:18 2011 +0200
+++ b/skaapsteker/sprites/base.py	Sat Apr 09 14:46:23 2011 +0200
@@ -236,12 +236,29 @@
 
     DAMAGE = 10
 
-    def setup(self, hits):
+    PROJECTILE_SIZE = (0, 0) # pixels
+    VELOCITY = (10, 10) # pixels/s
+
+    def setup(self, direction, hits, **opts):
+        super(Projectile, self).setup(**opts)
+        self.facing = direction
+
         if isinstance(hits, tuple):
             self.hits = hits + (Geography,)
         else:
             self.hits = (hits, Geography)
 
+        if self.facing == "left":
+            shift = (-self.PROJECTILE_SIZE[0] / 2, self.PROJECTILE_SIZE[1])
+            dv = (-self.VELOCITY[0], self.VELOCITY[1])
+        else:
+            shift = (self.PROJECTILE_SIZE[0] / 2, self.PROJECTILE_SIZE[1])
+            dv = (self.VELOCITY[0], self.VELOCITY[1])
+
+        self.rect.move_ip(shift)
+        self.collide_rect.move_ip(shift)
+        self.deltav(dv)
+
     def explode(self):
         self.kill()