Evaluation optimizations.

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

diff --git a/bulletml/parser.py b/bulletml/parser.py
index 187fa86..933be80 100644 (file)
--- a/bulletml/parser.py
+++ b/bulletml/parser.py
@@ -36,10 +36,7 @@ class ParamList(object):
                     self.params.append(NumberDef(subelem.text))
 
     def __call__(self, params, rank):
-        new_params = [param(params, rank) for param in self.params]
-        while len(new_params) < len(params):
-            new_params.append(params[len(new_params)])
-        return new_params
+        return [param(params, rank) for param in self.params]
 
     def __repr__(self):
         return "%s(%r)" % (type(self).__name__, self.params)
@@ -210,9 +207,7 @@ class BulletDef(object):
                 self.actions.append(ActionRef(doc, subelem))
 
     def __call__(self, params, rank):
-        actions = []
-        for action in self.actions:
-            actions.append(action(params, rank))
+        actions = [action(params, rank) for action in self.actions]
         return (
             self.direction and self.direction(params, rank),
             self.speed and self.speed(params, rank),