def move_avatar(name, moves, response, jsonp_callback=''):
avatar = get_avatar(name)
pre_tile = get_tile(maze_name, avatar.x, avatar.y)
ret_tiles = {}
for move in moves:
# Get the move direction
try:
move_shape = int(move.get('move', 0))
assert move_shape in shape_vector.keys()
except (AssertionError, ValueError):
raise HTTPBadRequest('Bad move value. Should be one of: %s' %
shape_vector.keys())
# Get the move number for locking
try:
move_lock = int(move.get('move_lock', 0))
assert move_lock != 0
except (AssertionError, ValueError):
raise HTTPBadRequest('Missing or bad move_lock')
seen = bool(move.get('seen', 0))
# Check move_lock sanity
if (avatar.moves + 1) != move_lock:
err_str = 'Out of step, expected (%d), got (%d)' % (
avatar.moves + 1, move_lock
)
raise HTTPBadRequest(err_str)
new_x = shape_vector[move_shape][0] + avatar.x
new_y = shape_vector[move_shape][1] + avatar.y
tile = get_tile(maze_name, new_x, new_y)
if tile is None:
err_str = 'Cannot move into wall (move: %d)' % move_lock
raise HTTPBadRequest(err_str)
avatar.x = new_x
avatar.y = new_y
avatar.moves += 1
if not seen:
for dt in tile.serial():
ret_tiles[(dt['x'], dt['y'])] = dt['shape']
for t in pre_tile.serial():
ret_tiles.pop((t['x'], t['y']), 0)
ret = {'avatar': avatar}
ret['tiles'] = [{'x':t[0], 'y':t[1], 'shape':ret_tiles[t]}
for t in ret_tiles]
set_entity(avatar)
ret_json = json.dumps(ret, indent=2, default=custom_encode)
if jsonp_callback == '':
response.headers['Content-type'] = 'application/json'
else:
response.headers['Content-type'] = 'application/javascript'
ret_json = "%s(\n%s\n);" % (jsonp_callback, ret_json)
response.out.write(ret_json)
def get(self, name):
jsonp_callback = self.request.get('jsonp_callback')
if self.request.get('moves') != '':
log.error('-%s-' % self.request.get('moves'))
moves = json.loads(self.request.get('moves'))
return move_avatar(name, moves, self.response, jsonp_callback)
avatar = get_avatar(name)
base_tile = get_tile(maze_name, avatar.x, avatar.y)
ret = {'avatar': avatar, 'tiles': base_tile}
ret_json = json.dumps(ret, indent=2, default=custom_encode)
if jsonp_callback == '':
self.response.headers['Content-type'] = 'application/json'
else:
self.response.headers['Content-type'] = 'application/javascript'
ret_json = "%s(\n%s\n);" % (jsonp_callback, ret_json)
self.response.out.write(ret_json)