Mercurial > mamba
annotate mamba/level.py @ 533:cb9ee0ba01ce
Explain curation in upload dialog box.
| author | Simon Cross <hodgestar@gmail.com> |
|---|---|
| date | Sun, 18 Sep 2011 01:14:52 +0200 |
| parents | 6c61d5862310 |
| children | 9afaa1969d6f |
| rev | line source |
|---|---|
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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 import pygame |
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6 from pygame.surface import Surface |
| 50 | 7 from pygame.sprite import RenderUpdates |
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8 |
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9 from mamba.constants import UP, DOWN, LEFT, RIGHT |
| 50 | 10 from mamba.data import load_file |
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11 from mamba import sprites |
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12 |
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13 from StringIO import StringIO |
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14 |
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15 |
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16 class InvalidMapError(Exception): |
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17 pass |
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18 |
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19 |
| 104 | 20 def mktile(cls, **kw): |
| 21 return (cls, kw) | |
| 22 | |
| 23 | |
| 37 | 24 TILE_MAP = { |
| 25 '.': None, | |
| 169 | 26 'X': mktile(sprites.TileSprite, image_name='wall', name='wall', |
| 27 solid=True), | |
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28 'A': mktile(sprites.TileSprite, image_name='biohazard', name='biohazard', |
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29 solid=True), |
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30 'R': mktile(sprites.DoorSprite, colour='red'), |
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31 'B': mktile(sprites.DoorSprite, colour='blue'), |
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32 'Y': mktile(sprites.DoorSprite, colour='yellow'), |
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33 'e': mktile(sprites.EntrySprite), |
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34 'E': mktile(sprites.ExitSprite), |
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35 '~': mktile(sprites.PuddleSprite), |
| 253 | 36 '$': mktile(sprites.FireSprite), |
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named paint tiles
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37 'r': mktile(sprites.Painter, colour='red', name='paint'), |
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38 'b': mktile(sprites.Painter, colour='blue', name='paint'), |
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39 'y': mktile(sprites.Painter, colour='yellow', name='paint'), |
| 234 | 40 '^': mktile(sprites.ArrowSprite, direction=UP), |
| 41 'v': mktile(sprites.ArrowSprite, direction=DOWN), | |
| 42 '<': mktile(sprites.ArrowSprite, direction=LEFT), | |
| 43 '>': mktile(sprites.ArrowSprite, direction=RIGHT), | |
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44 '@': mktile(sprites.FlipArrows), |
| 37 | 45 } |
| 46 | |
| 47 THING_MAP = { | |
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48 'M': mktile(sprites.BigMouse), |
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49 'm': mktile(sprites.SmallMouse), |
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50 'f': mktile(sprites.Frog), |
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You stole my snail symbol!
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51 '&': mktile(sprites.Snail), |
| 249 | 52 'l': mktile(sprites.Lizard), |
| 53 's': mktile(sprites.Salamander), | |
| 37 | 54 } |
| 55 | |
| 56 | |
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57 class Tileset(object): |
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58 def __init__(self, tileset_name): |
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59 self.name = tileset_name |
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60 self.load_tiles() |
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61 |
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62 def load_tiles(self): |
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63 self.tiles = {} |
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64 self.floor = sprites.TileSprite('.', tileset=self.name, |
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65 image_name='floor').image |
| 50 | 66 for name, value in TILE_MAP.items(): |
| 67 if value is not None: | |
| 104 | 68 value[1]['tileset'] = self.name |
| 50 | 69 self.tiles[name] = value |
| 70 self.tiles.update(THING_MAP) | |
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71 |
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72 def __getitem__(self, key): |
| 84 | 73 try: |
| 74 tilespec = self.tiles[key] | |
| 75 except KeyError: | |
| 76 raise InvalidMapError("Unknown tile type: '%s'" % key) | |
| 50 | 77 if not tilespec: |
| 78 return None | |
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105
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79 cls, params = tilespec |
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80 params['tile_char'] = key |
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81 return cls(**params) |
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82 |
| 50 | 83 def get_tile(self, key, tile_pos, *groups): |
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84 tile = self[key] |
| 50 | 85 if tile: |
| 86 tile.add(*groups) | |
| 87 tile.set_tile_pos(tile_pos) | |
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88 return tile |
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89 |
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90 |
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91 class Level(object): |
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92 def __init__(self, level_name, level_namespace, source=None): |
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93 self.level_name = level_name |
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94 self.level_namespace = level_namespace |
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95 self.source = source |
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96 self.load_level_data() |
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97 |
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98 def load_level_data(self): |
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99 """ |
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100 This file format is potentially yucky. |
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101 """ |
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102 if self.source is not None: |
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103 level_data = StringIO(self.source) |
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104 else: |
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105 level_data = load_file('levels/%s.txt' % (self.level_name,)) |
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106 self.name = level_data.readline().strip() |
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107 tileset_name = level_data.readline().strip() |
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108 self.tileset = Tileset(tileset_name) |
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109 self.background_track = level_data.readline().strip() |
| 84 | 110 tiles_ascii = [line.strip() for line in level_data.readlines()] |
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111 try: |
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112 end = tiles_ascii.index("end") |
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113 except ValueError: |
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114 raise InvalidMapError('Missing "end" marker in level') |
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115 sprites_ascii = tiles_ascii[end + 1:] |
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116 tiles_ascii = tiles_ascii[:end] |
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117 self.tiles_ascii = tiles_ascii |
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118 self.sprites_ascii = sprites_ascii |
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119 self.setup_level(tiles_ascii, sprites_ascii) |
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120 self.make_background() |
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121 |
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122 def validate_level(self): |
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123 old_tiles_ascii = self.tiles_ascii[:] |
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124 old_tiles = self.tiles[:] |
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125 try: |
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126 self.update_tiles_ascii() |
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127 self.setup_tiles(self.tiles_ascii) |
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128 finally: |
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129 self.tiles = old_tiles |
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130 self.tiles_ascii = old_tiles_ascii |
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131 |
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132 def save_level(self, level_dir=None, is_user_dir=False, save_file=None): |
| 174 | 133 """Save the current state of the level""" |
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134 if save_file is None: |
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135 if level_dir is None: |
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136 level_dir = 'levels' |
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137 file_path = '%s/%s.txt' % (level_dir, self.level_name) |
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138 save_file = load_file(file_path, 'wb', is_user_dir=is_user_dir) |
| 174 | 139 save_file.write('%s\n' % self.name) |
| 140 save_file.write('%s\n' % self.tileset.name) | |
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141 save_file.write('%s\n' % self.background_track) |
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142 self.update_tiles_ascii() |
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143 for tile_row in self.tiles_ascii: |
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144 save_file.write('%s\n' % tile_row) |
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145 save_file.write('end\n') |
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146 for sprite_ascii in self.sprites_ascii: |
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147 save_file.write('%s\n' % sprite_ascii) |
|
230
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148 |
|
361
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149 def unique_name(self): |
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150 return '/'.join((self.level_namespace, self.level_name)) |
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151 |
|
274
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152 def update_tiles_ascii(self): |
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153 """Resync tiles and tile_ascii""" |
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154 for i, tile_row in enumerate(self.tiles): |
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155 new_row = [] |
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156 for tile in tile_row: |
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157 if tile: |
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158 new_row.append(tile.tile_char) |
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159 else: |
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160 new_row.append('.') |
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161 self.tiles_ascii[i] = ''.join(new_row) |
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162 |
|
230
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163 def setup_level(self, tiles_ascii, sprites_ascii): |
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164 self.sprites = RenderUpdates() |
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165 self.setup_tiles(tiles_ascii) |
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166 self.setup_sprites(sprites_ascii) |
| 174 | 167 |
|
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168 def setup_tiles(self, tiles_ascii): |
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169 self.tiles = [] |
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170 self.entry = None |
| 84 | 171 self.tile_size = (len(tiles_ascii[0]), len(tiles_ascii)) |
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172 for y, row in enumerate(tiles_ascii): |
| 84 | 173 if len(row) != self.tile_size[0]: |
| 174 raise InvalidMapError("Map not rectangular.") | |
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175 tile_row = [] |
| 84 | 176 for x, tile_char in enumerate(row): |
| 141 | 177 #tile_orientation = self.get_tile_orientation(y, x, row, |
| 178 # tile_char) | |
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179 tile = self.tileset.get_tile(tile_char, (x, y), self.sprites) |
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180 tile_row.append(tile) |
|
162
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181 if isinstance(tile, sprites.EntrySprite): |
|
199
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182 self.rejigger_entry_tile(tile) |
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183 self.tiles.append(tile_row) |
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184 if self.entry is None: |
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185 raise InvalidMapError("Not enough entry points.") |
|
144
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186 self.set_tile_orientations() |
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187 |
|
199
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188 def rejigger_entry_tile(self, tile): |
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189 if self.entry is not None: |
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190 raise InvalidMapError("Too many entry points.") |
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191 self.entry = tile |
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192 direction = [] |
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193 x, y = tile.tile_pos |
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194 if x == 0: |
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195 direction.append(RIGHT) |
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196 elif x == self.tile_size[0] - 1: |
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197 direction.append(LEFT) |
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198 if y == 0: |
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199 direction.append(DOWN) |
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200 elif y == self.tile_size[1] - 1: |
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201 direction.append(UP) |
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202 if len(direction) < 1: |
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203 raise InvalidMapError("Entry point must be along an edge.") |
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|
204 if len(direction) > 1: |
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|
205 raise InvalidMapError("Entry point must not be on a corner.") |
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|
206 tile.set_direction(direction[0]) |
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|
207 |
|
144
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|
208 def set_tile_orientations(self): |
|
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|
209 tiles = [tile # This is a scary listcomp. It makes me happy. |
|
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|
210 for row in self.tiles |
|
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|
211 for tile in row |
|
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diff
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|
212 if tile is not None] |
|
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|
213 for tile in tiles: |
|
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diff
changeset
|
214 orientation = self.get_tile_orientation(tile) |
|
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changeset
|
215 tile.use_variant(*orientation) |
|
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diff
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|
216 |
|
230
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diff
changeset
|
217 def setup_sprites(self, sprites_ascii): |
| 243 | 218 self.extra_sprites = {} |
|
256
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253
diff
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|
219 sprite_positions = [] |
|
230
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220
diff
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|
220 for sprite_ascii in sprites_ascii: |
|
342
868a53b96c29
Protect against malformed sprite lines
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331
diff
changeset
|
221 try: |
|
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diff
changeset
|
222 pos, _sep, rest = sprite_ascii.partition(':') |
|
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diff
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|
223 except ValueError: |
|
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diff
changeset
|
224 raise InvalidMapError('Unable to determine sprite position' |
|
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Protect against malformed sprite lines
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331
diff
changeset
|
225 ' from line: %s' % sprite_ascii) |
|
256
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diff
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|
226 try: |
|
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253
diff
changeset
|
227 pos = [int(x.strip()) for x in pos.split(',')] |
|
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diff
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|
228 except ValueError: |
|
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253
diff
changeset
|
229 raise InvalidMapError("Sprite position must be two integers." |
|
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253
diff
changeset
|
230 "Got %s" % pos) |
|
230
e4f983b68ef5
Start of advanced sprite definitions.
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220
diff
changeset
|
231 class_name, rest = rest.split(None, 1) |
|
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220
diff
changeset
|
232 args = rest.split() |
| 243 | 233 sprite_id, args = args[0], args[1:] |
|
256
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diff
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|
234 try: |
|
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253
diff
changeset
|
235 cls = sprites.find_sprite(class_name) |
|
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diff
changeset
|
236 except KeyError: |
|
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253
diff
changeset
|
237 raise InvalidMapError("Unknown Sprite class: %s" % class_name) |
|
230
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220
diff
changeset
|
238 sprite = cls(*args) |
|
256
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diff
changeset
|
239 if pos in sprite_positions: |
|
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diff
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|
240 raise InvalidMapError('Multiple sprites at %s.' % pos) |
|
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diff
changeset
|
241 sprite_positions.append(pos) |
|
230
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changeset
|
242 sprite.set_tile_pos(pos) |
|
256
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diff
changeset
|
243 if sprite_id in self.extra_sprites: |
|
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changeset
|
244 raise InvalidMapError('Duplicate sprite id: %s.' % sprite_id) |
| 243 | 245 self.extra_sprites[sprite_id] = sprite |
|
230
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|
246 self.sprites.add(sprite) |
|
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diff
changeset
|
247 |
|
123
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diff
changeset
|
248 def is_same_tile(self, tile, x, y): |
|
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diff
changeset
|
249 """Is there a tile of the same type?""" |
|
144
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changeset
|
250 if tile.tile_char is None: |
|
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diff
changeset
|
251 # This isn't really a tile, so bail |
|
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diff
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|
252 return False |
|
123
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diff
changeset
|
253 try: |
|
144
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changeset
|
254 other_tile = self.tiles[y][x] |
|
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changeset
|
255 except IndexError: |
|
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changeset
|
256 # We're over the edge of the map |
|
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changeset
|
257 return False |
|
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changeset
|
258 if other_tile is None: |
|
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changeset
|
259 # Emptiness. |
|
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changeset
|
260 return False |
|
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diff
changeset
|
261 return tile.tile_char == other_tile.tile_char |
|
123
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diff
changeset
|
262 |
|
144
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diff
changeset
|
263 def get_tile_orientation(self, tile): |
|
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|
264 if tile is None: |
|
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changeset
|
265 return (False, False, False, False) |
|
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|
266 map_x, map_y = tile.tile_pos |
|
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|
267 return ( |
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268 self.is_same_tile(tile, map_x, map_y - 1), # above |
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269 self.is_same_tile(tile, map_x, map_y + 1), # below |
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270 self.is_same_tile(tile, map_x - 1, map_y), # left |
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271 self.is_same_tile(tile, map_x + 1, map_y), # right |
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272 ) |
|
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273 |
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274 def get_tile_size(self): |
| 84 | 275 return self.tile_size |
|
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276 |
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277 def get_size(self): |
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278 x, y = self.get_tile_size() |
|
162
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279 return sprites.tile_sizify((x, y)) |
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280 |
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281 def make_background(self): |
|
259
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282 if not pygame.display.get_init(): |
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256
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283 # Skip if we're not actuallt in pygame |
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284 return |
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285 sx, sy = self.get_tile_size() |
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286 self.background = Surface(self.get_size()) |
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287 [self.background.blit(self.tileset.floor, sprites.tile_sizify((x, y))) |
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288 for x in range(sx) for y in range(sy)] |
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289 |
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290 def get_entry(self): |
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291 return (self.entry.tile_pos, self.entry.direction) |
| 110 | 292 |
| 293 def draw(self, surface): | |
|
112
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294 surface.blit(self.background, (0, 0)) |
| 110 | 295 self.sprites.draw(surface) |
|
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296 |
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297 def get_tile(self, tile_pos): |
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298 x, y = tile_pos |
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299 if 0 <= x < self.tile_size[0] and 0 <= y < self.tile_size[1]: |
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300 return self.tiles[y][x] |
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301 return None |
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302 |
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303 def replace_tile(self, tile_pos, new_tile_char): |
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304 x, y = tile_pos |
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305 old_tile = self.tiles[y][x] |
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306 if old_tile is not None: |
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307 old_tile.remove(self.sprites) |
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308 new_tile = self.tileset.get_tile(new_tile_char, tile_pos, self.sprites) |
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309 self.tiles[y][x] = new_tile |
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310 # Fix orientations |
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311 tiles = [self.get_tile((x + dx, y + dy)) for dx in (-1, 0, 1) |
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312 for dy in (-1, 0, 1)] |
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313 for tile in tiles: |
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314 if tile: |
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315 orientation = self.get_tile_orientation(tile) |
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316 tile.use_variant(*orientation) |
| 186 | 317 |
|
248
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318 def flip_arrows(self): |
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319 for row in self.tiles: |
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320 for tile in row: |
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321 if isinstance(tile, sprites.ArrowSprite): |
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322 tile.rotate() |
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323 |
| 186 | 324 def restart(self): |
| 325 """Reset the level state""" | |
|
230
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326 self.setup_level(self.tiles_ascii, self.sprites_ascii) |
| 186 | 327 self.make_background() |
|
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328 |
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329 def get_sprite_at(self, sprite_pos): |
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330 """Return the sprite line at the given pos, or none if it doesn't |
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331 exist""" |
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332 for sprite_ascii in self.sprites_ascii: |
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333 try: |
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352
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334 pos, _, rest = sprite_ascii.partition(':') |
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335 pos = [int(x.strip()) for x in pos.split(',')] |
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336 except ValueError: |
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337 continue |
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338 if pos[0] == sprite_pos[0] and pos[1] == sprite_pos[1]: |
|
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339 pos, _sep, rest = sprite_ascii.partition(':') |
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340 class_name, rest = rest.split(None, 1) |
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341 args = rest.split() |
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342 sprite_cls = sprites.find_sprite(class_name) |
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343 sprite_id, args = args[0], args[1:] |
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344 return (class_name, sprite_cls, sprite_id, args), sprite_ascii |
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345 return None, None |
|
343
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346 |
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347 def remove_sprite(self, sprite): |
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348 """Remove the given sprite line from the list of sprites""" |
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349 self.sprites_ascii.remove(sprite) |
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350 |
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351 def validate_sprite(self, sprite): |
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352 """Check that the sprite line is valid""" |
|
352
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353 try: |
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354 pos, _sep, rest = sprite.partition(':') |
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355 pos = [int(x.strip()) for x in pos.split(',')] |
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356 class_name, rest = rest.split(None, 1) |
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357 args = rest.split() |
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358 except ValueError: |
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359 raise InvalidMapError('Unable to determine sprite parameters.') |
|
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360 sprite_id, args = args[0], args[1:] |
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361 try: |
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362 cls = sprites.find_sprite(class_name) |
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363 except KeyError: |
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364 raise InvalidMapError("Unknown Sprite class: %s" % class_name) |
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365 sprite = cls(*args) |
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366 if sprite_id in self.extra_sprites: |
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367 # Check that duplicate id is not at the same position |
|
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368 if self.extra_sprites[sprite_id].tile_pos != pos: |
|
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369 raise InvalidMapError('Duplicate sprite id: %s.' % sprite_id) |
|
352
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370 |
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371 def add_sprite(self, sprite): |
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372 self.sprites_ascii.append(sprite) |
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373 |
|
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374 def replace_sprite(self, new_ascii): |
|
352
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375 # Need to find the sprite at the same psoition |
|
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376 pos, _sep, rest = new_ascii.partition(':') |
|
352
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377 pos = [int(x.strip()) for x in pos.split(',')] |
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378 old_sprite, old_ascii = self.get_sprite_at(pos) |
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379 self.sprites_ascii.remove(old_ascii) |
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380 self.sprites_ascii.append(new_ascii) |