move float

pgfw/Sprite.py

@@ -6,6 +6,7 @@ from pygame.image import load
 from pygame.locals import *
 
 from Animation import Animation
+from Point import Point
 
 class Sprite(Animation):
 
@@ -14,6 +15,7 @@ class Sprite(Animation):
         self.frames = []
         self.frame_index = 0
         self.rect = Rect((0, 0, 0, 0))
+        self.motion_overflow = Point()
         self.deactivate()
 
     def deactivate(self):
@@ -61,7 +63,20 @@ class Sprite(Animation):
         self.frame_index = index
 
     def move(self, dx=0, dy=0):
-        self.rect.move_ip(dx, dy)
+        rect = self.rect
+        if isinstance(dx, float) or isinstance(dy, float):
+            excess = self.update_motion_overflow(dx, dy)
+            rect.move_ip(int(dx) + excess[0], int(dy) + excess[1])
+        else:
+            rect.move_ip(dx, dy)
+
+    def update_motion_overflow(self, dx, dy):
+        overflow = self.motion_overflow
+        overflow.move(dx - int(dx), dy - int(dy))
+        excess = map(int, overflow)
+        overflow[0] -= int(overflow[0])
+        overflow[1] -= int(overflow[1])
+        return excess
 
     def update(self):
         if self.active: