X-Git-Url: https://git.ctpug.org.za/?a=blobdiff_plain;f=erdslangetjie%2Flevel.py;h=8efc539e13a08d6b6ab7cafab4bd7fc1715f5197;hb=4b54ba10f3412990f36ae5608acf892235b77335;hp=cbec02c35d899a7ceb18123891bd177b1add1b16;hpb=64e0ef0f5aaa615ba6821a9924206b4d373e2a21;p=erdslangetjie.git diff --git a/erdslangetjie/level.py b/erdslangetjie/level.py index cbec02c..8efc539 100644 --- a/erdslangetjie/level.py +++ b/erdslangetjie/level.py @@ -7,70 +7,131 @@ WALL = '.' FLOOR = ' ' ENTRY = 'E' EXIT = 'X' +GATE = 'G' +BUTTON = 'B' class Level(object): def __init__(self, levelfile): - self.data = [] + self._data = [] self.exit_pos = [] self.enter_pos = None - self.tiles = [] + self._tiles = [] + self._changed = [] + self._gates = {} + self._buttons = {} # Because of how kivy's coordinate system works, # we reverse the lines so things match up between # the file and the display (top of file == top of display) for line in reversed(levelfile.readlines()): - self.data.append(list(line.strip('\n'))) + self._data.append(list(line.strip('\n'))) def load_tiles(self): """Load the list of tiles for the level""" - self.tiles = [] + self._tiles = [] + self._gates = {} + self._buttons = {} self.exit_pos = [] + self._changed = [] self.enter_pos = None - for j, line in enumerate(self.data): + for j, line in enumerate(self._data): tile_line = [] for i, c in enumerate(line): - if c == FLOOR: - tile_line.append(load_image('tiles/floor.png')) - elif c == WALL: - tile_line.append(self.get_wall_tile(i, j)) - elif c == ENTRY or c == EXIT: - if c == ENTRY: - if self.enter_pos: - raise RuntimeError('Multiple entry points') - self.enter_pos = (i, j) - else: - self.exit_pos.append((i, j)) - tile_line.append(load_image('tiles/door.png')) - self.tiles.append(tile_line) + tile_image = self._get_tile_image((i, j), c) + tile_line.append(tile_image) + self._tiles.append(tile_line) + + def _get_tile_image(self, pos, c): + if pos in self._gates: + del self._gates[pos] + if pos in self._buttons: + del self._buttons[pos] + image = None + if c == FLOOR: + image = load_image('tiles/floor.png') + elif c == WALL: + image = self._get_wall_tile(pos) + elif c == ENTRY: + self.enter_pos = pos + image = load_image('tiles/entry.png') + elif c == EXIT: + self.exit_pos.append(pos) + image = load_image('tiles/door.png') + elif c == GATE: + image = load_image('tiles/gate_down.png') + self._gates[pos] = -1 # down + elif c == BUTTON: + image = load_image('tiles/button.png') + self._buttons[pos] = 'active' + if image is None: + raise RuntimeError('Unknown tile type %s at %s' % (c, pos)) + return image + + def validate(self): + entry_points = 0 + exit_points = 0 + for line in self._data: + if ENTRY in line: + entry_points += 1 + if EXIT in line: + exit_points += 1 + if entry_points == 0: + raise RuntimeError('No entry point') + if entry_points > 1: + raise RuntimeError('Multiple entry points') + if exit_points == 0: + raise RuntimeError('No exit') def get_tiles(self): - return self.tiles + return self._tiles + + def get_single_tile(self, pos): + return self._tiles[pos[1]][pos[0]] + + def get_tile_type(self, pos): + return self._data[pos[1]][pos[0]] + + def set_tile_type(self, pos, new_type): + self._data[pos[1]][pos[0]] = new_type + new_tile = self._get_tile_image(new_type, pos) + self._tiles[pos[1]][pos[0]] = new_tile + self._changed.append((pos, new_tile)) + # Also update neighbourhood for wall types, etc. + for new_pos in [(pos[0] - 1, pos[1]), (pos[0] + 1, pos[1]), + (pos[0], pos[1] - 1), (pos[0], pos[1] + 1)]: + if not self._in_limits(new_pos): + continue + tile = self._data[new_pos[1]][new_pos[0]] + new_tile = self._get_tile_image(tile, pos) + self._tiles[new_pos[1]][new_pos[0]] = new_tile + self._changed.append((new_pos, new_tile)) def get_size(self): - return len(self.tiles[0]), len(self.tiles) + return len(self._tiles[0]), len(self._tiles) def at_exit(self, pos): return pos in self.exit_pos - def get_wall_tile(self, x, y): + def _get_wall_tile(self, pos): # Is the neighbour in this direction also a wall? - left = right = top = bottom = False + x, y = pos + left = right = top = bottom = False if x == 0: left = True - elif self.data[y][x - 1] == WALL: + elif self._data[y][x - 1] == WALL: left = True - if x == len(self.data[0]) - 1: + if x == len(self._data[0]) - 1: right = True - elif self.data[y][x + 1] == WALL: + elif self._data[y][x + 1] == WALL: right = True if y == 0: top = True - elif self.data[y - 1][x] == WALL: + elif self._data[y - 1][x] == WALL: top = True - if y == len(self.data) - 1: + if y == len(self._data) - 1: bottom = True - elif self.data[y + 1][x] == WALL: + elif self._data[y + 1][x] == WALL: bottom = True if top and bottom and left and right: return load_image('tiles/cwall.png') @@ -104,6 +165,16 @@ class Level(object): return load_image('tiles/end_left.png') return load_image('tiles/pillar.png') + def _in_limits(self, pos): + if pos[0] < 0: + return False + if pos[1] < 0: + return False + try: + self._data[pos[1]][pos[0]] + except IndexError: + return False + return True def blocked(self, pos): if pos[0] < 0: @@ -111,13 +182,48 @@ class Level(object): if pos[1] < 0: return True try: - tile = self.data[pos[1]][pos[0]] + tile = self._data[pos[1]][pos[0]] except IndexError: return True - if tile == '.': + if tile == WALL or tile == ENTRY: return True + if tile == GATE: + if self._gates[pos] != 'down': + return True return False + def is_gate(self, pos): + return self._data[pos[1]][pos[0]] == GATE + + def is_button(self, pos): + return self._data[pos[1]][pos[0]] == BUTTON + + def trigger_button(self, pos): + if not self.is_button(pos): + return False + if not self._buttons[pos] == 'active': + return False + # Find the closest gate down gate and trigger it + gate_pos = pos + + self._changed.append((pos, self.get_single_tile(pos))) + self._changed.append((gate_pos, self.get_single_tile(pos))) + + def damage_gate(self, pos): + if not self.is_gate(pos): + return False + if self._gates[pos] == -1 or self._gates[pos] == 0: + return False + self._gates[pos] = self._gates[pos] - 1 + self._fix_gate_tile(pos) + self._changed.append((pos, self.get_single_tile(pos))) + return True + + def get_changed_tiles(self): + ret = self._changed[:] + self._changed = [] + return ret + class LevelList(object): @@ -146,3 +252,6 @@ class LevelList(object): def advance_to_next_level(self): self._cur_level += 1 return self.get_current_level() + + def reset(self): + self._cur_level = 0