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comparison gamelib/animations.py @ 380:1586eccdefe4

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Ripped out legacy animation infrastructure in favour of layered sprites.
author Jeremy Thurgood <firxen@gmail.com>
date Sun, 25 Oct 2009 10:56:01 +0000
parents a655ae452b4e
children 7a58dadfd251
comparison
equal deleted inserted replaced
379:a8a7ada27fa2 380:1586eccdefe4
15 Ideally, animations should be quite short.""" 15 Ideally, animations should be quite short."""
16 # In the current implementation, sequences longer than 4 frames 16 # In the current implementation, sequences longer than 4 frames
17 # will cause issues as this will overrun the next move loop. 17 # will cause issues as this will overrun the next move loop.
18 # (assuming all animations are triggered by the move loop, of course) 18 # (assuming all animations are triggered by the move loop, of course)
19 19
20 def __init__(self, tile_pos, sequence=None): 20 def __init__(self, tv, tile_pos, sequence=None, layer='animations'):
21 # Create the first frame 21 # Create the first frame
22 if sequence is None: 22 if sequence is None:
23 sequence = self.SEQUENCE 23 sequence = self.SEQUENCE
24 self.iter = iter(sequence) 24 self.iter = iter(sequence)
25 Sprite.__init__(self, self.iter.next(), (-1000, -1000)) 25 self.layer = layer
26 if hasattr(tile_pos, 'to_tuple'): 26 Sprite.__init__(self, self.iter.next(), tv.tile_to_view(tile_pos))
27 self.pos = tile_pos 27 tv.sprites.append(self, layer=self.layer)
28 else:
29 self.pos = Position(tile_pos[0], tile_pos[1])
30 self.removed = False
31 28
32 def fix_pos(self, tv): 29 def loop(self, tv, s):
33 ppos = tv.tile_to_view(self.pos.to_tuple()) 30 """Step to the next frame, removing sprite when done."""
34 self.rect.x = ppos[0]
35 self.rect.y = ppos[1]
36
37 def animate(self):
38 """Step to the next frame.
39
40 Set removed flag when we hit the end of the sequence"""
41 try: 31 try:
42 self.setimage(self.iter.next()) 32 self.setimage(self.iter.next())
43 except StopIteration: 33 except StopIteration:
44 self.removed = True 34 tv.sprites.remove(self, layer=self.layer)
45 35
46 class MuzzleFlash(Animation): 36 class MuzzleFlash(Animation):
47 37
48 FLASH_LEFT = imagecache.load_image('sprites/muzzle_flash.png') 38 FLASH_LEFT = imagecache.load_image('sprites/muzzle_flash.png')
49 FLASH_RIGHT = imagecache.load_image('sprites/muzzle_flash.png', 39 FLASH_RIGHT = imagecache.load_image('sprites/muzzle_flash.png',
50 ("right_facing",)) 40 ("right_facing",))
51 41
52 SEQUENCE_LEFT = [FLASH_LEFT, FLASH_LEFT] 42 SEQUENCE_LEFT = [FLASH_LEFT, FLASH_LEFT]
53 SEQUENCE_RIGHT = [FLASH_RIGHT, FLASH_RIGHT] 43 SEQUENCE_RIGHT = [FLASH_RIGHT, FLASH_RIGHT]
54 44
55 def __init__(self, chicken): 45 def __init__(self, tv, chicken, layer='animations'):
56 if chicken.facing == 'right': 46 if chicken.facing == 'right':
57 Animation.__init__(self, chicken.pos, self.SEQUENCE_RIGHT) 47 Animation.__init__(self, tv, chicken.pos.to_tuple(), self.SEQUENCE_RIGHT, layer=layer)
58 else: 48 else:
59 Animation.__init__(self, chicken.pos, self.SEQUENCE_LEFT) 49 Animation.__init__(self, tv, chicken.pos.to_tuple(), self.SEQUENCE_LEFT, layer=layer)
60 50
61 class FenceExplosion(Animation): 51 class FenceExplosion(Animation):
62 FLASH_1 = imagecache.load_image('sprites/boom1.png') 52 FLASH_1 = imagecache.load_image('sprites/boom1.png')
63 FLASH_2 = imagecache.load_image('sprites/boom2.png') 53 FLASH_2 = imagecache.load_image('sprites/boom2.png')
64 FLASH_3 = imagecache.load_image('sprites/boom3.png') 54 FLASH_3 = imagecache.load_image('sprites/boom3.png')