Mercurial > mamba
annotate mamba/level.py @ 197:adbf59aa81c1
Remove debugging tile that used red.
author | Simon Cross <hodgestar@gmail.com> |
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date | Wed, 14 Sep 2011 19:27:22 +0200 |
parents | 275f0be6946c |
children | 986e72d2cb4d |
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 |
8
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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 'M': mktile(sprites.BigMouse), |
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39 'm': mktile(sprites.SmallMouse), |
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40 'f': mktile(sprites.Frog), |
37 | 41 } |
42 | |
43 | |
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44 class Tileset(object): |
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45 def __init__(self, tileset_name): |
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46 self.name = tileset_name |
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47 self.load_tiles() |
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48 |
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49 def load_tiles(self): |
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50 self.tiles = {} |
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51 self.floor = sprites.TileSprite('.', tileset=self.name, |
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52 image_name='floor').image |
50 | 53 for name, value in TILE_MAP.items(): |
54 if value is not None: | |
104 | 55 value[1]['tileset'] = self.name |
50 | 56 self.tiles[name] = value |
57 self.tiles.update(THING_MAP) | |
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58 |
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59 def __getitem__(self, key): |
84 | 60 try: |
61 tilespec = self.tiles[key] | |
62 except KeyError: | |
63 raise InvalidMapError("Unknown tile type: '%s'" % key) | |
50 | 64 if not tilespec: |
65 return None | |
105
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66 cls, params = tilespec |
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67 params['tile_char'] = key |
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68 return cls(**params) |
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69 |
50 | 70 def get_tile(self, key, tile_pos, *groups): |
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71 tile = self[key] |
50 | 72 if tile: |
73 tile.add(*groups) | |
74 tile.set_tile_pos(tile_pos) | |
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75 return tile |
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76 |
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77 |
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78 class Level(object): |
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79 def __init__(self, level_name): |
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80 self.level_name = level_name |
123
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81 self.tiles_ascii = '' |
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82 self.load_level_data() |
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83 |
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84 def load_level_data(self): |
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85 """ |
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86 This file format is potentially yucky. |
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87 """ |
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88 level_data = load_file('levels/%s.txt' % (self.level_name,)) |
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89 self.name = level_data.readline().strip() |
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90 tileset_name = level_data.readline().strip() |
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91 self.tileset = Tileset(tileset_name) |
84 | 92 tiles_ascii = [line.strip() for line in level_data.readlines()] |
123
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93 self.tiles_ascii = tiles_ascii |
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94 self.setup_tiles(tiles_ascii) |
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95 self.make_background() |
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96 |
174 | 97 def save_level(self): |
98 """Save the current state of the level""" | |
99 save_file = load_file('levels/%s.txt' % (self.level_name,), 'wb') | |
100 save_file.write('%s\n' % self.name) | |
101 save_file.write('%s\n' % self.tileset.name) | |
102 for tile_row in self.tiles: | |
103 for tile in tile_row: | |
104 if tile: | |
105 save_file.write(tile.tile_char) | |
106 else: | |
107 save_file.write('.') | |
108 save_file.write('\n') | |
109 | |
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110 def setup_tiles(self, tiles_ascii): |
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111 self.sprites = RenderUpdates() |
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112 self.tiles = [] |
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113 self.entry = None |
84 | 114 self.tile_size = (len(tiles_ascii[0]), len(tiles_ascii)) |
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115 for y, row in enumerate(tiles_ascii): |
84 | 116 if len(row) != self.tile_size[0]: |
117 raise InvalidMapError("Map not rectangular.") | |
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118 tile_row = [] |
84 | 119 for x, tile_char in enumerate(row): |
141 | 120 #tile_orientation = self.get_tile_orientation(y, x, row, |
121 # tile_char) | |
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122 tile = self.tileset.get_tile(tile_char, (x, y), self.sprites) |
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123 tile_row.append(tile) |
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124 if isinstance(tile, sprites.EntrySprite): |
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125 if self.entry is not None: |
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126 raise InvalidMapError("Too many entry points.") |
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127 self.entry = tile |
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128 self.tiles.append(tile_row) |
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129 if self.entry is None: |
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130 raise InvalidMapError("Not enough entry points.") |
144
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131 self.set_tile_orientations() |
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132 |
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133 def set_tile_orientations(self): |
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134 tiles = [tile # This is a scary listcomp. It makes me happy. |
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135 for row in self.tiles |
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136 for tile in row |
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137 if tile is not None] |
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138 for tile in tiles: |
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139 orientation = self.get_tile_orientation(tile) |
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140 tile.use_variant(*orientation) |
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141 |
123
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142 def is_same_tile(self, tile, x, y): |
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143 """Is there a tile of the same type?""" |
144
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144 if tile.tile_char is None: |
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145 # This isn't really a tile, so bail |
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146 return False |
123
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147 try: |
144
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148 other_tile = self.tiles[y][x] |
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149 except IndexError: |
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150 # We're over the edge of the map |
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151 return False |
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152 if other_tile is None: |
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153 # Emptiness. |
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154 return False |
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155 return tile.tile_char == other_tile.tile_char |
123
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156 |
144
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157 def get_tile_orientation(self, tile): |
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158 if tile is None: |
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159 return (False, False, False, False) |
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160 map_x, map_y = tile.tile_pos |
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161 return ( |
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162 self.is_same_tile(tile, map_x, map_y - 1), # above |
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163 self.is_same_tile(tile, map_x, map_y + 1), # below |
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164 self.is_same_tile(tile, map_x - 1, map_y), # left |
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165 self.is_same_tile(tile, map_x + 1, map_y), # right |
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166 ) |
123
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167 |
71
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168 def get_tile_size(self): |
84 | 169 return self.tile_size |
21
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170 |
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171 def get_size(self): |
71
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172 x, y = self.get_tile_size() |
162
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173 return sprites.tile_sizify((x, y)) |
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174 |
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175 def make_background(self): |
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176 sx, sy = self.get_tile_size() |
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177 self.background = Surface(self.get_size()) |
162
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178 [self.background.blit(self.tileset.floor, sprites.tile_sizify((x, y))) |
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179 for x in range(sx) for y in range(sy)] |
81
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180 |
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181 def get_entry(self): |
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182 return (self.entry.tile_pos, self.entry.direction) |
110 | 183 |
184 def draw(self, surface): | |
112
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185 surface.blit(self.background, (0, 0)) |
110 | 186 self.sprites.draw(surface) |
173
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187 |
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188 def get_tile(self, tile_pos): |
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189 x, y = tile_pos |
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190 if 0 <= x < self.tile_size[0] and 0 <= y < self.tile_size[1]: |
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191 return self.tiles[y][x] |
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192 return None |
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193 |
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194 def replace_tile(self, tile_pos, new_tile_char): |
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195 x, y = tile_pos |
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196 old_tile = self.tiles[y][x] |
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197 if old_tile is not None: |
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198 old_tile.remove(self.sprites) |
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199 new_tile = self.tileset.get_tile(new_tile_char, tile_pos, self.sprites) |
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200 self.tiles[y][x] = new_tile |
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201 # Fix orientations |
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202 tiles = [self.get_tile((x + dx, y + dy)) for dx in (-1, 0, 1) |
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203 for dy in (-1, 0, 1)] |
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204 for tile in tiles: |
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205 if tile: |
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206 orientation = self.get_tile_orientation(tile) |
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207 tile.use_variant(*orientation) |
186 | 208 |
209 def restart(self): | |
210 """Reset the level state""" | |
211 self.setup_tiles(self.tiles_ascii) | |
212 self.make_background() |