Mercurial > rinkhals

annotate gamelib/tiles.py @ 60:e2631c8e2cd6

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Implement guard towers (with temporary sprite PNG).
author Simon Cross <hodgestar@gmail.com>
date Mon, 31 Aug 2009 19:10:31 +0000
parents 205789321a46
children 98ce098f8cbb
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1 """Extension to pgu's tilevid."""
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2
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3 from pgu import tilevid, vid
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4 import os
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5 import imagecache
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7 class TileMap(object):
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8 """Helper class for describing all the game tiles."""
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9
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10 # number -> (name, image file name)
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11 DEFAULT_TILES = {
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12 0: ("woodland", "woodland.png"),
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13 1: ("grassland", "grassland.png"),
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14 2: ("fence", "fence.png"),
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15 3: ("henhouse", "grassland.png"),
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16 4: ("guardtower", "guardtower.png"),
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17 }
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19 def __init__(self, tiles=None):
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20 if tiles is None:
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21 tiles = self.DEFAULT_TILES.copy()
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22 self._tiles = tiles
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23 self._reverse_map = dict((v[0], k) for k, v in self._tiles.iteritems())
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25 def __getitem__(self, n):
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26 """Get the string name of tile n."""
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27 return self._tiles[n][0]
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29 def tile_number(self, name):
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30 """Return the tile number of the tile with the given name."""
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31 return self._reverse_map[name]
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33 def tiles_for_image(self, image_name):
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34 """Return tile numbers associated with the given image name."""
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35 for n, (name, image) in self._tiles.iteritems():
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36 if image_name == image:
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37 yield n
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39 TILE_MAP = TileMap()
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40 REVERSE_TILE_MAP = TILE_MAP._reverse_map
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43 class FarmVid(tilevid.Tilevid):
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44 """Extension of pgu's TileVid class to handle the complications
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45 of raising chickens.
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46 """
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47 def __init__(self):
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48 tilevid.Tilevid.__init__(self)
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49
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50 def png_folder_load_tiles(self, path):
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51 """Load tiles from a folder of PNG files."""
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52 for dirpath, dirnames, filenames in os.walk(path):
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53 abstract_dirpath = "/".join(dirpath.split(os.path.sep))
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54 for filename in filenames:
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55 image_name = abstract_dirpath + "/" + filename
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56 for tile_no in TILE_MAP.tiles_for_image(filename):
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57 tile_name = TILE_MAP[tile_no]
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58 self.tiles[tile_no] = FarmTile(tile_no, tile_name, image_name)
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60 def sun(self, sun_on):
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61 """Make it night."""
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62 for tile in self.tiles:
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63 if hasattr(tile, "sun"):
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64 tile.sun(sun_on)
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65 for sprite in self.sprites:
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66 if hasattr(sprite, "sun"):
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67 sprite.sun(sun_on)
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68
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69 class FarmTile(vid.Tile):
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70
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71 def __init__(self, tile_no, tile_name, image_name):
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72 self.tile_no = tile_no
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73 self.tile_name = tile_name
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74 self.day_image = imagecache.load_image(image_name)
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75 self.night_image = imagecache.load_image(image_name, ("night",))
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76 vid.Tile.__init__(self, self.day_image)
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78 def sun(self, sun_on):
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79 if sun_on:
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80 self.image = self.day_image
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81 else:
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82 self.image = self.night_image