1 """Loader a level, using the pygame-zero ResourceLoader infrastructure"""
5 from pgzero.loaders import ResourceLoader
7 from ..gamelib.tiles import Wall, Floor, Tunnel, Underground, Grate, Exit
8 from ..gamelib.level import Level
9 from ..gamelib.door import Door
10 from ..gamelib.keypad import Keypad
11 from ..gamelib.friendlyroach import get_friendly_roach
12 from ..gamelib.items import get_item
13 from ..gamelib.enemy_generator import EnemyGenerator
17 "cwall": Wall, # rename this everywhere
20 "underground": Underground,
24 class LevelLoader(ResourceLoader):
30 def _load(self, level_path):
31 f = open(level_path, 'r')
32 level_data = json.load(f)
35 self._level.height = len(level_data['tiles'])
36 self._level.width = len(level_data['tiles'][0])
37 self._level.tiles = level_data['tiles']
38 self._level.tileset = level_data['tileset']
39 self._level.start_pos = level_data["starting pos"]
40 self._level.exit = level_data["exit"]
41 self._level.enemy_generators = []
42 self._level.friends = []
43 self._level.items = []
44 # Consistency check, so we can assume things are correct
45 # in the level renderer
46 for row, row_data in enumerate(self._level.tiles):
47 if len(row_data) != self._level.width:
48 raise RuntimeError("Incorrect len for row %d" % row)
49 for tile in TILES.values():
50 tile.TILESET = self._level.tileset
51 self._load_tile_images()
52 for door_info in level_data['door_info']:
53 # Create the doors first
55 for door in door_info['doors']:
57 # is this the right check
58 if self._level.can_walk(x + 1, y, 'floor') and self._level.can_walk(x - 1, y, 'floor'):
63 new_door = Door(x, y, angle)
64 self._level.doors.append(new_door)
65 doors.append(new_door)
67 for keypad in door_info['keypads']:
68 new_keypad = Keypad(keypad[0], keypad[1], doors, keypad[2])
69 self._level.keypads.append(new_keypad)
70 for pos in level_data['friendly roaches']:
71 roach = get_friendly_roach(pos[0], pos[1])
72 self._level.friends.append(roach)
73 for item in level_data['items']:
74 self._level.items.append(get_item(item))
75 for generator in level_data['enemy generators']:
76 enemy = EnemyGenerator(generator, self._level)
77 self._level.enemy_generators.append(enemy)
80 def _load_tile_images(self):
81 """Load all the tile images"""
82 for y, row_data in enumerate(self._level.tiles):
83 for x, tile in enumerate(row_data):
84 neighborhood = self._level.get_neighbors(x, y)
85 for layer in ['floor', 'tunnels']:
86 neighbors = [x[layer] if x else None for x in neighborhood]
87 tile['%s image' % layer] = (
88 TILES[tile[layer]['base']].image(neighbors))
90 if self._level.is_exit(x, y):
91 tile['floor image'] = Exit.image(neighbors)
92 elif layer == 'floor' and 'crawl' in tile[layer]['behaviour']:
93 tile['floor image'] = Grate.image(neighbors)
94 self._level.grates.append((x, y))
97 levels = LevelLoader('levels')