reverse frameset

pgfw/Interpolator.py

@@ -548,7 +548,7 @@ class GUI(Animation):
         self.split += 1
         if self.split > self.S_RIGHT:
             self.split = self.S_NONE
-        self.buttons[self.B_SPLIT].set_frame(["Split: no", "Split: L",
+        self.buttons[self.B_SPLIT].set_frame(["Split: No", "Split: L",
                                               "Split: R"][self.split])
 
     def add_nodeset(self, name):

pgfw/Sprite.py

@@ -166,7 +166,9 @@ class Sprite(Animation):
             location.fader.set_alpha()
 
     def add_frameset(self, order, framerate=None, name=None):
-        self.framesets.append(Frameset(self, order, framerate, name))
+        frameset = Frameset(self, order, framerate, name)
+        self.framesets.append(frameset)
+        return frameset
 
     def hide(self):
         self.hidden = True
@@ -180,6 +182,13 @@ class Sprite(Animation):
         else:
             self.locations = self.locations[:1]
 
+    def reverse(self, frameset=None):
+        if frameset:
+            frameset.reverse()
+        else:
+            for frameset in self.framesets:
+                frameset.reverse()
+
     def update(self):
         Animation.update(self)
         self.draw()
@@ -297,6 +306,7 @@ class Frameset():
     def __init__(self, sprite, order=[], framerate=None, name=None):
         self.sprite = sprite
         self.name = name
+        self.reversed = False
         self.order = []
         self.rect = Rect(0, 0, 0, 0)
         self.add_index(order)
@@ -333,10 +343,16 @@ class Frameset():
             self.increment_index()
 
     def increment_index(self):
-        index = self.current_index + 1
-        if index >= len(self.order):
+        increment = 1 if not self.reversed else -1
+        index = self.current_index + increment
+        if index < 0:
+            index = self.length() - 1
+        elif index >= self.length():
             index = 0
         self.current_index = index
 
     def length(self):
         return len(self.order)
+
+    def reverse(self):
+        self.reversed = not self.reversed