Get my coordinate systems straight - 0,0 will be upper-left.

[python-bulletml.git] / bulletml / impl.py

diff --git a/bulletml/impl.py b/bulletml/impl.py
index 2c938d2..6fe1641 100644 (file)
--- a/bulletml/impl.py
+++ b/bulletml/impl.py
@@ -256,7 +256,7 @@ class Bullet(object):
             return self.direction
         else:
             return math.degrees(
-                math.atan2(self.target.x - self.x, self.target.y - self.y))
+                math.atan2(self.target.x - self.x, self.y - self.target.y))
 
     @property
     def finished(self):