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annotate gamelib/animations.py @ 265:a655ae452b4e

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updated fence explosion animation
author Adrianna Pińska <adrianna.pinska@gmail.com>
date Sat, 05 Sep 2009 13:57:17 +0000
parents 844bfb23d4b6
children 1586eccdefe4
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1 """Animation Loops"""
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2
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3 from pgu.vid import Sprite
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4
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5 import imagecache
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6 from misc import Position
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7
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8 class Animation(Sprite):
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9 """Animation loop.
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10
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11 These are derived from sprites, since they behave similiary in most
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12 respects, but, to ensure draw ordering, we don't add them to
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13 the sprites list.
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14
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15 Ideally, animations should be quite short."""
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16 # In the current implementation, sequences longer than 4 frames
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17 # will cause issues as this will overrun the next move loop.
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18 # (assuming all animations are triggered by the move loop, of course)
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20 def __init__(self, tile_pos, sequence=None):
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21 # Create the first frame
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22 if sequence is None:
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23 sequence = self.SEQUENCE
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24 self.iter = iter(sequence)
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25 Sprite.__init__(self, self.iter.next(), (-1000, -1000))
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26 if hasattr(tile_pos, 'to_tuple'):
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27 self.pos = tile_pos
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28 else:
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29 self.pos = Position(tile_pos[0], tile_pos[1])
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30 self.removed = False
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31
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32 def fix_pos(self, tv):
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33 ppos = tv.tile_to_view(self.pos.to_tuple())
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34 self.rect.x = ppos[0]
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35 self.rect.y = ppos[1]
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36
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37 def animate(self):
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38 """Step to the next frame.
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39
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40 Set removed flag when we hit the end of the sequence"""
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41 try:
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42 self.setimage(self.iter.next())
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43 except StopIteration:
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44 self.removed = True
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45
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46 class MuzzleFlash(Animation):
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47
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48 FLASH_LEFT = imagecache.load_image('sprites/muzzle_flash.png')
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49 FLASH_RIGHT = imagecache.load_image('sprites/muzzle_flash.png',
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50 ("right_facing",))
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51
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52 SEQUENCE_LEFT = [FLASH_LEFT, FLASH_LEFT]
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53 SEQUENCE_RIGHT = [FLASH_RIGHT, FLASH_RIGHT]
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54
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55 def __init__(self, chicken):
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56 if chicken.facing == 'right':
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57 Animation.__init__(self, chicken.pos, self.SEQUENCE_RIGHT)
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58 else:
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59 Animation.__init__(self, chicken.pos, self.SEQUENCE_LEFT)
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61 class FenceExplosion(Animation):
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62 FLASH_1 = imagecache.load_image('sprites/boom1.png')
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63 FLASH_2 = imagecache.load_image('sprites/boom2.png')
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64 FLASH_3 = imagecache.load_image('sprites/boom3.png')
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65 FLASH_4 = imagecache.load_image('sprites/boom4.png')
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66 SEQUENCE = [FLASH_1, FLASH_2, FLASH_3, FLASH_4]
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68 class FoxDeath(Animation):
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69 BLOOD_SPLAT = imagecache.load_image('sprites/fox_death.png')
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70 SEQUENCE = [BLOOD_SPLAT, BLOOD_SPLAT]
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71
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72 class ChickenDeath(Animation):
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73 BLOOD_SPLAT = imagecache.load_image('sprites/fox_death.png')
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74 FEATHER_SPLAT = imagecache.load_image('sprites/chkn_death.png')
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75 SEQUENCE = [BLOOD_SPLAT, FEATHER_SPLAT, FEATHER_SPLAT]