Animated sprite sheet

[Sebastian]

Found this in one of the games I made a while back...<br>
Thought I would share it ;) Maybe someone can improve it a little bit and make it more useful :P

import scene, StringIO, urllib, os, Image

class AnimatedSprite (object):
	def __init__(self, path, frame, w=1, h=1, steps=3, **kwargs):
		self.w = w
		self.h = h
		self.frame = frame
		if path.startswith(('http://', 'https://')):
			file = StringIO.StringIO(urllib.urlopen(path).read())
			img = Image.open(file).convert('RGBA')
#			self.white_to_transparent(img)
			self.tiles = [self.get_frame(img, x, y) for y in xrange(h) for x in xrange(w)]
		elif os.path.isfile(path):
			img = Image.open(path)
			self.tiles = [self.get_frame(img, x, y) for y in xrange(h) for x in xrange(w)]
		elif os.path.isdir(path):
			self.tiles = [scene.load_image_file(path+img) for img in os.listdir(path)]
		self.step = 0
		self.frame_count = 0
		self.steps = steps
		self.rotation = 0
		self.tint = scene.Color(1,1,1,1)
		self.looped = False
		self.is_done = False
		self.original_size = frame.w, frame.h
		self.configure(**kwargs)

	def configure(self, **kwargs):
		for k, v in kwargs.items():
			setattr(self, k, v)
			
	def white_to_transparent(self, img):
		pixdata = img.load()
		for y in xrange(img.size[1]):
			for x in xrange(img.size[0]):
				if pixdata[x, y] == (255, 255, 255, 255):
					pixdata[x, y] = (255, 255, 255, 0)

	def get_frame(self, img, x, y):
		w, h = img.size
		w = w/self.w
		h = h/self.h
		frame = img.crop((x*w, y*h, (x+1)*w, (y+1)*h))
		self.original_size = frame.size
		return scene.load_pil_image(frame)

	def set_original_size(self):
		self.frame.w, self.frame.h = self.original_size

	def draw(self):
		self.frame_count += 1
		if not self.is_done:
			scene.push_matrix()
			scene.translate(*self.frame.origin())
			scene.rotate(self.rotation)
			scene.tint(*self.tint)
			scene.image(self.tiles[self.step], 0, 0, *self.frame.size())
			scene.pop_matrix()
		if self.frame_count % self.steps == 0 and not self.is_done:
			self.step += 1
		if not self.looped:
			if self.step == len(self.tiles)-1:
				self.step = 0
				self.is_done = True
		else:
			if self.step == len(self.tiles)-1:
				self.step = 0


class MyScene (scene.Scene):
	def setup(self):
		url = 'https://dl.dropboxusercontent.com/u/25234596/Exp_type_C.png'
		
		self.img = AnimatedSprite(url, scene.Rect(self.size.w/2, self.size.h/2, 200, 200), w=48)
		self.img.configure(steps=2, looped=True)
		self.img.set_original_size()

	def draw(self):
		scene.background(1,1,1)
		self.img.draw()
		
	def touch_began(self, touch):
		self.img.frame.center(touch.location)
		self.img.configure(is_done=False, step=0)

scene.run(MyScene())

[ccc]

Beautiful! This is exactly the sort of effect that we needed for https://github.com/tjferry14/Cloud-Jump-2/issues/9