Mercurial > pygame-tutorial

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Added CC0 license
author Radomir Dopieralski <sheep-devel@sheep.art.pl>
date Sun, 08 Jul 2012 19:56:38 +0200
parents 2a0f43c87b80
children
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7
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1 #!/usr/bin/env python
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2 # -*- coding: utf-8 -*-
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3
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4 import pygame
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5 import pygame.locals as pg
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6 from pytmx import tmxloader
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7
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8
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9 FACING = {
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10 (0, -1): 0,
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11 (-1, 0): 1,
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12 (0, 1): 2,
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13 (1, 0): 3,
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14 }
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15
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16
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17 def load_sheet(filename, width=32, height=None):
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18 if height is None:
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19 height = width
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20 image = pygame.image.load(filename)
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21 image = image.convert()
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22 image.set_colorkey((0xff, 0, 0xff))
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23 w, h = image.get_size()
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24 images = []
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25 for x in xrange(w // width):
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26 for y in xrange(h // height):
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27 rect = pygame.rect.Rect(x * width, y * height, width, height)
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28 images.append(image.subsurface(rect))
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29 return images
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30
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31
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32 class ShadowSprite(pygame.sprite.Sprite):
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33 def __init__(self, sprite):
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34 super(ShadowSprite, self).__init__()
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35 self.spritesheet = load_sheet('effects.png', 32)
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36 self.image = self.spritesheet[0]
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37 self.rect = self.image.get_rect()
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38 self.image.set_alpha(0.6 * 255)
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39 self.sprite = sprite
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40 self.rect.midbottom = self.sprite.rect.midbottom
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41
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42 def update(self):
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43 self.rect.midbottom = self.sprite.rect.midbottom
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44
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45
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46 class HeroSprite(pygame.sprite.Sprite):
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47 def __init__(self, (x, y)):
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48 super(HeroSprite, self).__init__()
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49 self.spritesheet = load_sheet('spritesheet.png', 64)
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50 self.facing = 2
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51 self.image = self.spritesheet[self.facing]
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52 self.rect = self.image.get_rect()
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53 self.rect.midbottom = (x * 32 + 16, y * 32 + 32)
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54 self.animations = []
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55
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56 def move(self, (dx, dy)):
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57 self.facing = FACING[dx, dy]
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58 self.animations.append(self.animation_walk((dx, dy)))
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59
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60 def animation_walk(self, (dx, dy)):
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61 for step in xrange(8):
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62 self.image = self.spritesheet[self.facing + step * 4 + 4]
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63 self.rect.move_ip(dx * 4, dy * 4)
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64 yield
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65
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66 def animation_stand(self):
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67 self.image = self.spritesheet[self.facing]
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68 return
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69 yield
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70
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71 def update(self):
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72 if not self.animations:
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73 self.animations.append(self.animation_stand())
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74 while self.animations:
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75 try:
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76 self.animations[0].next()
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77 return
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78 except StopIteration:
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79 self.animations.pop(0)
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80
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81 class Level(object):
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82 def __init__(self, filename):
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83 self.tiled_map = tmxloader.load_pygame(filename)
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84 self.hero_position = 1, 1
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85
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86 def render(self, screen):
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87 w = self.tiled_map.tilewidth
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88 h = self.tiled_map.tileheight
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89 get_image = self.tiled_map.getTileImage
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90 for l, layer in enumerate(self.tiled_map.tilelayers):
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91 for y in xrange(self.tiled_map.height):
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92 for x in xrange(self.tiled_map.width):
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93 image = get_image(x, y, l)
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94 if image:
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95 screen.blit(image, (x * w, y * h))
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96 x, y = self.hero_position
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97
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98 def get_properties(self, (x, y)):
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99 properties = {}
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100 for l, layer in enumerate(self.tiled_map.tilelayers):
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101 properties.update(self.tiled_map.getTileProperties((x, y, l)) or {})
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102 return properties
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103
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104 def is_blocked(self, (x, y)):
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105 return self.get_properties((x, y)).get('block')
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106
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107 def move_hero(self, (dx, dy)):
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108 x, y = self.hero_position
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109 if not self.is_blocked((x + dx, y + dy)):
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110 self.hero_position = x + dx, y + dy
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111 return True
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112 return False
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113
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114
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115 class Game(object):
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116 def __init__(self):
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117 pygame.display.init()
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118 pygame.font.init()
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119 self.screen = pygame.display.set_mode((800, 600))
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120 self.screen.fill((0x66, 0x66, 0x66))
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121 self.keys = {
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122 pg.K_UP: (self.move_hero, (0, -1)),
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123 pg.K_DOWN: (self.move_hero, (0, 1)),
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124 pg.K_LEFT: (self.move_hero, (-1, 0)),
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125 pg.K_RIGHT: (self.move_hero, (1, 0)),
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126 pg.K_ESCAPE: (self.quit,),
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127 }
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128 self.shadow_sprites = pygame.sprite.RenderUpdates()
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129 self.sprites = pygame.sprite.RenderUpdates()
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130 self.key = None
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131
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132 def load_level(self, filename):
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133 self.level = Level(filename)
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134 self.hero_sprite = HeroSprite(self.level.hero_position)
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135 self.sprites.add(self.hero_sprite)
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136 self.shadow_sprites.add(ShadowSprite(self.hero_sprite))
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137 self.background = self.screen.copy()
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138 self.level.render(self.background)
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139 self.screen.blit(self.background, (0, 0))
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140 self.sprites.draw(self.screen)
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141 pygame.display.update()
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142
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143 def quit(self):
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144 self.game_over = True
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145
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146 def move_hero(self, direction):
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147 if self.level.move_hero(direction):
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148 self.hero_sprite.move(direction)
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149
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150 def control(self):
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151 for event in pygame.event.get():
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152 if event.type == pg.QUIT:
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153 self.quit()
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154 elif event.type == pg.KEYDOWN:
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155 self.key = event.key
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156 if not self.hero_sprite.animations:
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157 keys = pygame.key.get_pressed()
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158 for key, action in self.keys.iteritems():
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159 if keys[key] or self.key == key:
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160 action[0](*action[1:])
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161 break
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162 self.key = None
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163
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164 def display(self):
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165 self.sprites.clear(self.screen, self.background)
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166 self.shadow_sprites.clear(self.screen, self.background)
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167 self.sprites.update()
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168 self.shadow_sprites.update()
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169 dirty = []
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170 dirty.extend(self.shadow_sprites.draw(self.screen))
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171 dirty.extend(self.sprites.draw(self.screen))
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172 pygame.display.update(dirty)
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173
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174 def run(self):
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175 self.clock = pygame.time.Clock()
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176 self.game_over = False
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177 while not self.game_over:
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178 self.display()
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179 self.control()
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180 self.clock.tick(30)
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181
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182
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183 if __name__ == '__main__':
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184 game = Game()
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185 game.load_level('level.tmx')
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186 game.run()