Mercurial > mamba
annotate mamba/level.py @ 182:0a955d2536f0
Painted Jezebel! (Assuming you name your snake Jezebel.)
author | Jeremy Thurgood <firxen@gmail.com> |
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date | Wed, 14 Sep 2011 16:27:11 +0200 |
parents | 893fb9f8f468 |
children | 275f0be6946c |
rev | line source |
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First stab at tile/level stuff.
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1 """ |
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2 Level for our shiny game. |
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3 """ |
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4 |
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5 from pygame.surface import Surface |
50 | 6 from pygame.sprite import RenderUpdates |
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7 |
50 | 8 from mamba.data import load_file |
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9 from mamba import sprites |
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10 from mamba.snake import Snake |
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11 |
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12 |
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13 class InvalidMapError(Exception): |
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14 pass |
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15 |
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16 |
104 | 17 def mktile(cls, **kw): |
18 return (cls, kw) | |
19 | |
20 | |
37 | 21 TILE_MAP = { |
22 '.': None, | |
169 | 23 'X': mktile(sprites.TileSprite, image_name='wall', name='wall', |
24 solid=True), | |
162
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25 'R': mktile(sprites.DoorSprite, colour='red'), |
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26 'B': mktile(sprites.DoorSprite, colour='blue'), |
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27 '^': mktile(sprites.EntrySprite, direction=Snake.UP), |
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28 'v': mktile(sprites.EntrySprite, direction=Snake.DOWN), |
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29 '<': mktile(sprites.EntrySprite, direction=Snake.LEFT), |
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30 '>': mktile(sprites.EntrySprite, direction=Snake.RIGHT), |
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31 'E': mktile(sprites.ExitSprite), |
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32 '~': mktile(sprites.PuddleSprite), |
182
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33 'r': mktile(sprites.Painter, colour='red'), |
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34 'b': mktile(sprites.Painter, colour='blue'), |
37 | 35 } |
36 | |
37 THING_MAP = { | |
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38 'a': mktile(sprites.TileSprite, image_name='red'), |
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39 'M': mktile(sprites.BigMouse), |
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40 'm': mktile(sprites.SmallMouse), |
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41 'f': mktile(sprites.Frog), |
37 | 42 } |
43 | |
44 | |
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45 class Tileset(object): |
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46 def __init__(self, tileset_name): |
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47 self.name = tileset_name |
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48 self.load_tiles() |
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49 |
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50 def load_tiles(self): |
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51 self.tiles = {} |
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52 self.floor = sprites.TileSprite('.', tileset=self.name, |
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53 image_name='floor').image |
50 | 54 for name, value in TILE_MAP.items(): |
55 if value is not None: | |
104 | 56 value[1]['tileset'] = self.name |
50 | 57 self.tiles[name] = value |
58 self.tiles.update(THING_MAP) | |
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59 |
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60 def __getitem__(self, key): |
84 | 61 try: |
62 tilespec = self.tiles[key] | |
63 except KeyError: | |
64 raise InvalidMapError("Unknown tile type: '%s'" % key) | |
50 | 65 if not tilespec: |
66 return None | |
105
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67 cls, params = tilespec |
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68 params['tile_char'] = key |
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69 return cls(**params) |
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70 |
50 | 71 def get_tile(self, key, tile_pos, *groups): |
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72 tile = self[key] |
50 | 73 if tile: |
74 tile.add(*groups) | |
75 tile.set_tile_pos(tile_pos) | |
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76 return tile |
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77 |
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78 |
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79 class Level(object): |
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80 def __init__(self, level_name): |
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81 self.level_name = level_name |
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82 self.tiles_ascii = '' |
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83 self.load_level_data() |
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84 |
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85 def load_level_data(self): |
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86 """ |
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87 This file format is potentially yucky. |
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88 """ |
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89 level_data = load_file('levels/%s.txt' % (self.level_name,)) |
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90 self.name = level_data.readline().strip() |
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91 tileset_name = level_data.readline().strip() |
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92 self.tileset = Tileset(tileset_name) |
84 | 93 tiles_ascii = [line.strip() for line in level_data.readlines()] |
123
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94 self.tiles_ascii = tiles_ascii |
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95 self.setup_tiles(tiles_ascii) |
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96 self.make_background() |
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97 |
174 | 98 def save_level(self): |
99 """Save the current state of the level""" | |
100 save_file = load_file('levels/%s.txt' % (self.level_name,), 'wb') | |
101 save_file.write('%s\n' % self.name) | |
102 save_file.write('%s\n' % self.tileset.name) | |
103 for tile_row in self.tiles: | |
104 for tile in tile_row: | |
105 if tile: | |
106 save_file.write(tile.tile_char) | |
107 else: | |
108 save_file.write('.') | |
109 save_file.write('\n') | |
110 | |
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111 def setup_tiles(self, tiles_ascii): |
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112 self.sprites = RenderUpdates() |
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113 self.tiles = [] |
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114 self.entry = None |
84 | 115 self.tile_size = (len(tiles_ascii[0]), len(tiles_ascii)) |
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116 for y, row in enumerate(tiles_ascii): |
84 | 117 if len(row) != self.tile_size[0]: |
118 raise InvalidMapError("Map not rectangular.") | |
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119 tile_row = [] |
84 | 120 for x, tile_char in enumerate(row): |
141 | 121 #tile_orientation = self.get_tile_orientation(y, x, row, |
122 # tile_char) | |
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123 tile = self.tileset.get_tile(tile_char, (x, y), self.sprites) |
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124 tile_row.append(tile) |
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125 if isinstance(tile, sprites.EntrySprite): |
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126 if self.entry is not None: |
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127 raise InvalidMapError("Too many entry points.") |
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128 self.entry = tile |
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129 self.tiles.append(tile_row) |
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130 if self.entry is None: |
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131 raise InvalidMapError("Not enough entry points.") |
144
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132 self.set_tile_orientations() |
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133 |
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134 def set_tile_orientations(self): |
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135 tiles = [tile # This is a scary listcomp. It makes me happy. |
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136 for row in self.tiles |
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137 for tile in row |
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138 if tile is not None] |
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139 for tile in tiles: |
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140 orientation = self.get_tile_orientation(tile) |
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141 tile.use_variant(*orientation) |
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142 |
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143 def is_same_tile(self, tile, x, y): |
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144 """Is there a tile of the same type?""" |
144
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145 if tile.tile_char is None: |
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146 # This isn't really a tile, so bail |
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147 return False |
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148 try: |
144
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149 other_tile = self.tiles[y][x] |
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150 except IndexError: |
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151 # We're over the edge of the map |
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152 return False |
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153 if other_tile is None: |
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154 # Emptiness. |
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155 return False |
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156 return tile.tile_char == other_tile.tile_char |
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157 |
144
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158 def get_tile_orientation(self, tile): |
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159 if tile is None: |
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160 return (False, False, False, False) |
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161 map_x, map_y = tile.tile_pos |
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162 return ( |
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163 self.is_same_tile(tile, map_x, map_y - 1), # above |
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164 self.is_same_tile(tile, map_x, map_y + 1), # below |
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165 self.is_same_tile(tile, map_x - 1, map_y), # left |
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166 self.is_same_tile(tile, map_x + 1, map_y), # right |
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167 ) |
123
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168 |
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169 def get_tile_size(self): |
84 | 170 return self.tile_size |
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171 |
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172 def get_size(self): |
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173 x, y = self.get_tile_size() |
162
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174 return sprites.tile_sizify((x, y)) |
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175 |
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176 def make_background(self): |
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177 sx, sy = self.get_tile_size() |
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178 self.background = Surface(self.get_size()) |
162
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179 [self.background.blit(self.tileset.floor, sprites.tile_sizify((x, y))) |
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180 for x in range(sx) for y in range(sy)] |
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181 |
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182 def get_entry(self): |
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183 return (self.entry.tile_pos, self.entry.direction) |
110 | 184 |
185 def draw(self, surface): | |
112
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186 surface.blit(self.background, (0, 0)) |
110 | 187 self.sprites.draw(surface) |
173
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188 |
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189 def get_tile(self, tile_pos): |
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190 x, y = tile_pos |
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191 if 0 <= x < self.tile_size[0] and 0 <= y < self.tile_size[1]: |
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192 return self.tiles[y][x] |
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193 return None |
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194 |
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195 def replace_tile(self, tile_pos, new_tile_char): |
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196 x, y = tile_pos |
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197 old_tile = self.tiles[y][x] |
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198 if old_tile is not None: |
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199 old_tile.remove(self.sprites) |
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200 new_tile = self.tileset.get_tile(new_tile_char, tile_pos, self.sprites) |
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201 self.tiles[y][x] = new_tile |
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202 # Fix orientations |
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203 tiles = [self.get_tile((x + dx, y + dy)) for dx in (-1, 0, 1) |
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204 for dy in (-1, 0, 1)] |
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205 for tile in tiles: |
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206 if tile: |
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207 orientation = self.get_tile_orientation(tile) |
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208 tile.use_variant(*orientation) |