+ def _set_angle(self, angle):
+ self._angle = angle
+ self._avatar.angle = angle
+
+ @defer_to_update
+ def _vehicle_changed(self, world):
+ self._roaches.remove(self._avatar)
+ self._vehicle = Vehicle.current(world)
+ self._avatar = self._vehicle.get_avatar(world)
+ self._avatar.pos = (WIDTH // 2, HEIGHT // 2)
+ self._roaches.add(self._avatar)
+ self._set_angle(self._angle)
+
+ @defer_to_update
+ def _add_roach(self, world):
+ world.roaches.append(build_roach(world))
+ self._vehicle_changed()
+
+ @defer_to_update
+ def _gain_item(self, world, item):
+ if item.item_type == "serum":
+ world.serums.append(item.item_data["serum"])
+ elif item.item_type == "weapon":
+ old_weapon = world.weapons.current
+ world.weapons.current = item.item_data["weapon"]
+ if old_weapon != "spit":
+ clone = clone_old_item(item, weapon=old_weapon)
+ self._level.items.append(clone)
+ self._items.add(clone)
+ self._vehicle_changed()
+
+ @defer_to_update
+ def _change_vehicle(self, world):
+ vehicle = Vehicle.random()
+ world.vehicles.current = vehicle
+ self._vehicle_changed()
+
+ def update(self, world, engine, dt):
+ super().update(world, engine, dt)
+ events = world.pop_events()
+ for friend in self._friends:
+ friend.pos = self.calc_offset(
+ friend.game_pos[0] * TILE_SIZE, friend.game_pos[1] * TILE_SIZE)
+ for item in self._items:
+ item.pos = self.calc_offset(
+ item.game_pos[0] * TILE_SIZE, item.game_pos[1] * TILE_SIZE)
+ more = self._check_held_keys(dt)
+ if more:
+ events.extend(more)
+ return events
+
+ def _check_held_keys(self, dt):
+ for key in self._held_keys:
+ self._last_key_down += dt
+ if key in (keys.DOWN, keys.UP, keys.LEFT, keys.RIGHT):
+ return self._movement_key(key, dt)
+ elif key == keys.X:
+ return self._fire_key(dt)
+
+ def _movement_key(self, key, dt):