minor cleanup in pipong example (0 + value)

Author: twmr

examples/event_handling/pipong.py

@@ -79,8 +79,9 @@ def update(self, pads):
                 self.vx *= 1.2 * pad.signx
                 self.vy *= 1.2 * pad.signy
         fudge = .001
-        # probably cleaner with something like...if not self.field.contains(self.x, self.y):
-        if self.x < 0 + fudge:
+        # probably cleaner with something like...
+        #if not self.field.contains(self.x, self.y):
+        if self.x < fudge:
             #print("player A loses")
             pads[1].score += 1
             self._reset(pads[0])