Mercurial > rinkhals
annotate gamelib/buildings.py @ 419:d110d55c8449
Move hatching logic into chickens.
| author | Jeremy Thurgood <firxen@gmail.com> |
|---|---|
| date | Sat, 21 Nov 2009 15:22:41 +0000 |
| parents | 8f012ef1f64f |
| children | 97dd557504a2 |
| rev | line source |
|---|---|
| 43 | 1 """Classes for various buildings in the game.""" |
| 2 | |
| 3 from pgu.vid import Sprite | |
| 204 | 4 from pygame.locals import SRCALPHA |
| 5 import pygame | |
| 43 | 6 |
| 7 import imagecache | |
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8 import tiles |
| 204 | 9 import constants |
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10 import serializer |
| 204 | 11 |
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12 # ignore os.popen3 warning generated by pygame.font.SysFont |
| 204 | 13 import warnings |
| 14 warnings.filterwarnings("ignore", "os.popen3 is deprecated.") | |
| 43 | 15 |
| 125 | 16 class Place(object): |
| 17 """Space within a building that can be occupied.""" | |
| 18 | |
| 19 def __init__(self, building, offset): | |
| 20 self.occupant = None | |
| 21 self.building = building | |
| 22 self.offset = offset | |
| 23 | |
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24 def set_occupant(self, occupant, _update=True, _predator=False): |
| 204 | 25 self.clear_occupant(_update=False) |
| 125 | 26 self.occupant = occupant |
| 27 self.occupant.abode = self | |
| 204 | 28 if _update: |
| 29 self.building.update_occupant_count() | |
| 125 | 30 |
| 204 | 31 def clear_occupant(self, _update=True): |
| 125 | 32 if self.occupant is not None: |
| 33 self.occupant.abode = None | |
| 34 self.occupant = None | |
| 204 | 35 if _update: |
| 36 self.building.update_occupant_count() | |
| 125 | 37 |
| 38 def get_pos(self): | |
| 39 bpos = self.building.pos | |
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40 return (bpos[0] + self.offset[0], bpos[1] + self.offset[1], |
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41 self.offset[2]) |
| 125 | 42 |
| 43 class Floor(object): | |
| 44 """A set of places within a building. Places on a | |
| 45 floor are organised into rows and columns. | |
| 46 """ | |
| 47 | |
| 48 def __init__(self, title, places): | |
| 49 self.title = title # str | |
| 50 self.places = places # list of lists of places | |
| 51 | |
| 52 def rows(self): | |
| 53 for row in self.places: | |
| 54 yield row | |
| 55 | |
| 56 def width(self): | |
| 57 return max(len(row) for row in self.places) | |
| 58 | |
| 59 class BuildingFullError(Exception): | |
| 60 pass | |
| 61 | |
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62 class Building(Sprite, serializer.Simplifiable): |
| 43 | 63 """Base class for buildings""" |
| 64 | |
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65 IS_BUILDING = True |
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66 GRASSLAND = tiles.REVERSE_TILE_MAP['grassland'] |
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67 MODIFY_KNIFE_RANGE = lambda s, x: 0 |
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68 MODIFY_GUN_RANGE = lambda s, x: -1 |
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69 BREAKABLE = False |
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70 ABODE = False |
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71 FLOORS = None |
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72 HENHOUSE = False |
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73 |
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74 SIMPLIFY = [ |
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75 'pos', |
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76 'size', |
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77 'tile_no', |
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78 '_buy_price', |
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79 '_sell_price', |
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80 '_repair_price', |
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81 '_sun_on', |
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82 '_broken', |
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83 '_predators', |
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84 ] |
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85 |
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86 def __init__(self, pos): |
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87 """Initial image, tile vid position, size and tile number for building.""" |
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88 self._set_images() |
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89 self.pos = pos |
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90 self.size = self.SIZE |
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91 self.tile_no = self.TILE_NO |
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92 self._buy_price = self.BUY_PRICE |
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93 self._sell_price = self.SELL_PRICE |
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94 self._repair_price = getattr(self, 'REPAIR_PRICE', None) |
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95 self._sun_on = True |
| 204 | 96 self._font = pygame.font.SysFont('Vera', 30, bold=True) |
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97 self._font_image = pygame.Surface(self.images['fixed']['day'].get_size(), flags=SRCALPHA) |
| 204 | 98 self._font_image.fill((0, 0, 0, 0)) |
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99 self._broken = False |
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100 self._predators = [] |
| 125 | 101 |
| 102 self._floors = [] | |
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103 if self.FLOORS: |
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104 for f, z in enumerate(self.FLOORS): |
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105 places = [] |
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106 for j in range(self.size[1]): |
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107 row = [] |
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108 for i in range(self.size[0]): |
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109 row.append(Place(self, (i, j, z))) |
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110 places.append(row) |
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111 floor = Floor("Floor %s" % (f+1,), places) |
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112 self._floors.append(floor) |
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113 |
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114 # 0: the main image |
| 204 | 115 # 1: above, -1: below |
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116 self.draw_stack = {"main": (0, self.images['fixed']['day'])} |
| 204 | 117 |
| 43 | 118 # Create the building somewhere far off screen |
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119 Sprite.__init__(self, self.images['fixed']['day'], (-1000, -1000)) |
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120 |
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121 def _set_images(self): |
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122 self.images = {'fixed': { |
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123 'day': imagecache.load_image(self.IMAGE), |
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124 'night': imagecache.load_image(self.IMAGE, ('night',)), |
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125 'selected': imagecache.load_image(self.SELECTED_IMAGE), |
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126 }} |
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127 if self.BREAKABLE: |
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128 self.images['broken'] = { |
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129 'day': imagecache.load_image(self.IMAGE_BROKEN), |
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130 'night': imagecache.load_image(self.IMAGE_BROKEN, ('night',)), |
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131 'selected': imagecache.load_image(self.SELECTED_IMAGE_BROKEN), |
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132 } |
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133 |
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134 def _set_main_image(self): |
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135 image_set = self.images[{True: 'broken',False: 'fixed'}[self._broken]] |
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136 self._replace_main(image_set[{True: 'day', False: 'night'}[self._sun_on]]) |
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137 |
| 204 | 138 def _redraw(self): |
| 139 items = self.draw_stack.values() | |
| 140 items.sort(key=lambda x: x[0]) | |
| 141 image = items.pop(0)[1].copy() | |
| 142 for _lvl, overlay in items: | |
| 143 image.blit(overlay, (0, 0)) | |
| 144 self.setimage(image) | |
| 145 | |
| 146 def _replace_main(self, new_main): | |
| 147 self.draw_stack["main"] = (0, new_main) | |
| 148 self._redraw() | |
| 149 | |
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150 def tile_positions(self): |
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151 """Return pairs of (x, y) tile positions for each of the tile positions |
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152 occupied by the building. |
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153 """ |
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154 xpos, ypos = self.pos |
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155 xsize, ysize = self.size |
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156 |
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157 for dx in xrange(xsize): |
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158 for dy in xrange(ysize): |
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159 yield (xpos + dx, ypos + dy) |
| 43 | 160 |
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161 def adjacent_tiles(self): |
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162 """Return pairs of (x, y) tile positions for each of the tiles |
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163 adjacent to the building. |
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164 """ |
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165 xpos, ypos = self.pos |
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166 xsize, ysize = self.size |
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167 |
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168 for dx in xrange(xsize): # top and bottom |
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169 yield (xpos + dx, ypos - 1) |
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170 yield (xpos + dx, ypos + ysize) |
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171 |
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172 for dy in xrange(ysize): # left and right |
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173 yield (xpos - 1, ypos + dy) |
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174 yield (xpos + xsize, ypos + dy) |
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175 |
| 43 | 176 def loop(self, tv, _sprite): |
| 177 ppos = tv.tile_to_view(self.pos) | |
| 178 self.rect.x = ppos[0] | |
| 179 self.rect.y = ppos[1] | |
| 180 | |
| 181 def move(self, state): | |
| 182 """Given the game state, return a new position for the object""" | |
| 183 # Default is not to move | |
| 184 return self.pos | |
| 185 | |
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186 def place(self, tv): |
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187 """Check that the building can be placed at its current position |
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188 and place it if possible. |
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189 """ |
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190 # check that all spaces under the structure are grassland |
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191 for tile_pos in self.tile_positions(): |
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192 if not tv.get(tile_pos) == self.GRASSLAND: |
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193 return False |
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194 |
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195 # place tile |
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196 for tile_pos in self.tile_positions(): |
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197 tv.set(tile_pos, self.tile_no) |
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198 |
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199 return True |
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200 |
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201 def covers(self, tile_pos): |
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202 """Return True if build covers tile_pos, False otherwise.""" |
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203 xpos, ypos = self.pos |
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204 xsize, ysize = self.size |
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205 return (xpos <= tile_pos[0] < xpos + xsize) and \ |
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206 (ypos <= tile_pos[1] < ypos + ysize) |
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207 |
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208 def broken(self): |
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209 return self._broken |
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210 |
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211 def damage(self, tv): |
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212 if not self.BREAKABLE: |
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213 return False |
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214 self._broken = True |
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215 self._sell_price = self.SELL_PRICE_BROKEN |
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216 self.tile_no = self.TILE_NO_BROKEN |
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217 for tile_pos in self.tile_positions(): |
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218 tv.set(tile_pos, self.tile_no) |
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219 self._set_main_image() |
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220 |
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221 def repair(self, tv): |
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222 self._broken = False |
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223 self._sell_price = self.SELL_PRICE |
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224 self.tile_no = self.TILE_NO |
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225 for tile_pos in self.tile_positions(): |
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226 tv.set(tile_pos, self.tile_no) |
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227 self._set_main_image() |
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228 |
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229 def remove(self, tv): |
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230 """Remove the building from its current position.""" |
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231 # remove tile |
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232 for tile_pos in self.tile_positions(): |
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233 tv.set(tile_pos, self.GRASSLAND) |
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234 |
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235 def buy_price(self): |
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236 return self._buy_price |
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237 |
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238 def sell_price(self): |
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239 return self._sell_price |
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240 |
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241 def repair_price(self): |
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242 return self._repair_price |
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243 |
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244 def selected(self, selected): |
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245 if selected: |
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246 self._replace_main(self.images[{True: 'broken',False: 'fixed'}[self._broken]]['selected']) |
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247 else: |
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248 self._set_main_image() |
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249 |
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250 def sun(self, sun_on): |
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251 self._sun_on = sun_on |
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252 self._set_main_image() |
| 204 | 253 |
| 254 def update_occupant_count(self): | |
| 255 count = len(list(self.occupants())) | |
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256 if count == 0 and not self._predators: |
| 204 | 257 if "count" in self.draw_stack: |
| 258 del self.draw_stack["count"] | |
| 259 else: | |
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260 # Render chicken count |
| 204 | 261 image = self._font_image.copy() |
| 262 w, h = image.get_size() | |
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263 if count: |
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264 text = self._font.render(str(count), True, |
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265 constants.FG_COLOR) |
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266 # Blit to the right |
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267 x, y = text.get_size() |
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268 image.blit(text, (w - x, h - y)) |
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269 # Render predator count |
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270 if self._predators: |
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271 text = self._font.render(str(len(self._predators)), True, |
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272 constants.PREDATOR_COUNT_COLOR) |
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273 # Blit to the left |
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274 x, y = text.get_size() |
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275 image.blit(text, (0, h - y)) |
| 204 | 276 self.draw_stack["count"] = (1, image) |
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277 |
| 204 | 278 self._redraw() |
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279 |
| 125 | 280 def floors(self): |
| 281 return self._floors | |
| 282 | |
| 283 def places(self): | |
| 284 for floor in self._floors: | |
| 285 for row in floor.rows(): | |
| 286 for place in row: | |
| 287 yield place | |
| 288 | |
| 289 def max_floor_width(self): | |
| 290 return max(floor.width() for floor in self._floors) | |
| 291 | |
| 292 def first_empty_place(self): | |
| 293 for place in self.places(): | |
| 294 if place.occupant is None: | |
| 295 return place | |
| 296 raise BuildingFullError() | |
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297 |
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298 def add_occupant(self, occupant): |
| 125 | 299 place = self.first_empty_place() |
| 300 place.set_occupant(occupant) | |
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301 |
| 125 | 302 def occupants(self): |
| 303 for place in self.places(): | |
| 304 if place.occupant is not None: | |
| 305 yield place.occupant | |
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306 |
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307 def add_predator(self, animal): |
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308 animal.building = self |
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309 self._predators.append(animal) |
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310 self.update_occupant_count() |
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311 |
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312 def remove_predator(self, animal): |
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313 if animal in self._predators: |
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314 self._predators.remove(animal) |
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315 animal.building = None |
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316 self.update_occupant_count() |
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317 |
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318 class Abode(Building): |
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319 ABODE = True |
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320 |
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321 class HenHouse(Abode): |
| 43 | 322 """A HenHouse.""" |
| 323 | |
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324 TILE_NO = tiles.REVERSE_TILE_MAP['henhouse'] |
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325 BUY_PRICE = 100 |
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326 SELL_PRICE = 90 |
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327 SIZE = (3, 2) |
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328 IMAGE = 'sprites/henhouse.png' |
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329 SELECTED_IMAGE = 'sprites/select_henhouse.png' |
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330 NAME = 'Henhouse' |
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331 FLOORS = [0] |
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332 |
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333 HENHOUSE = True |
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334 |
| 125 | 335 class DoubleStoryHenHouse(HenHouse): |
| 336 """A double story hen house.""" | |
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337 |
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338 TILE_NO = tiles.REVERSE_TILE_MAP['hendominium'] |
| 125 | 339 BUY_PRICE = 300 |
| 340 SELL_PRICE = 150 | |
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341 SIZE = (2, 3) |
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342 IMAGE = 'sprites/hendominium.png' |
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343 SELECTED_IMAGE = 'sprites/select_hendominium.png' |
| 125 | 344 NAME = 'Hendominium' |
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345 FLOORS = [0, 1] |
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346 |
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347 class GuardTower(Abode): |
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348 """A GuardTower.""" |
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349 |
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350 TILE_NO = tiles.REVERSE_TILE_MAP['guardtower'] |
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351 BUY_PRICE = 200 |
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352 SELL_PRICE = 150 |
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353 SIZE = (2, 2) |
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354 IMAGE = 'sprites/watchtower.png' |
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355 SELECTED_IMAGE = 'sprites/select_watchtower.png' |
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356 NAME = 'Watchtower' |
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357 FLOORS = [2] |
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358 |
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359 MODIFY_GUN_RANGE = lambda s, x: (3*x)/2 |
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360 MODIFY_GUN_BASE_HIT = lambda s, x: x-5 |
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361 MODIFY_GUN_RANGE_PENALTY = lambda s, x: x-1 |
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362 MODIFY_VISION_BONUS = lambda s, x: x+10 |
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363 MODIFY_VISION_RANGE_PENALTY = lambda s, x: x-2 |
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364 |
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365 class Fence(Building): |
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366 """A fence.""" |
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367 |
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368 TILE_NO = tiles.REVERSE_TILE_MAP['fence'] |
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369 TILE_NO_BROKEN = tiles.REVERSE_TILE_MAP['broken fence'] |
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370 BREAKABLE = True |
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371 BUY_PRICE = 50 |
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372 SELL_PRICE = 25 |
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373 REPAIR_PRICE = 25 |
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374 SELL_PRICE_BROKEN = 5 |
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375 SIZE = (1, 1) |
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376 IMAGE = 'tiles/fence.png' |
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377 SELECTED_IMAGE = 'tiles/fence.png' |
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378 IMAGE_BROKEN = 'tiles/broken_fence.png' |
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379 SELECTED_IMAGE_BROKEN = 'tiles/broken_fence.png' |
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380 NAME = 'Fence' |
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381 |
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382 |
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383 def is_building(obj): |
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384 """Return true if obj is a build class.""" |
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385 return getattr(obj, "IS_BUILDING", False) and hasattr(obj, "NAME") |
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386 |
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387 BUILDINGS = [] |
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388 for name in dir(): |
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389 obj = eval(name) |
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390 try: |
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391 if is_building(obj): |
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392 BUILDINGS.append(obj) |
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393 except TypeError: |
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394 pass |