going

pgfw/Sprite.py

@@ -23,6 +23,7 @@ class Sprite(Animation):
         self.set_frameset(0)
         self.locations.append(Location(self))
         self.motion_overflow = Vector()
+        self.stop()
         self.display_surface = self.get_display_surface()
 
     def __getattr__(self, name):
@@ -203,8 +204,19 @@ class Sprite(Animation):
             for frameset in self.framesets:
                 frameset.reverse()
 
+    def go(self, dx=0, dy=0):
+        self.go_vector = Vector(dx, dy)
+
+    def stop(self):
+        self.go_vector = Vector()
+
+    def is_going(self):
+        return self.go_vector != [0, 0]
+
     def update(self, areas=None, substitute=None):
         Animation.update(self)
+        if self.is_going():
+            self.move(*self.go_vector)
         if self.get_current_frameset().length():
             self.draw(areas, substitute)