Python WeakMethodList.execute方法代码示例

# 需要导入模块: from horizons.util.python.weakmethodlist import WeakMethodList [as 别名]
# 或者: from horizons.util.python.weakmethodlist.WeakMethodList import execute [as 别名]
class MovingObject(ComponentHolder, ConcreteObject):
	"""This class provides moving functionality and is to be inherited by Unit.
	Its purpose is to provide a cleaner division of the code.

	It provides:
	*attributes:
	- position, last_position: Point
	- path: Pather

	*moving methods:
	- move
	- stop
	- add_move_callback

	*getters/checkers:
	- check_move
	- get_move_target
	- is_moving
	"""
	movable = True

	log = logging.getLogger("world.units")

	# overwrite this with a descendant of AbstractPather
	pather_class = None # type: Type[AbstractPather]

	def __init__(self, x, y, **kwargs):
		super().__init__(x=x, y=y, **kwargs)
		self.__init(x, y)

	def __init(self, x, y):
		self.position = Point(x, y)
		self.last_position = Point(x, y)
		self._next_target = Point(x, y)

		self.move_callbacks = WeakMethodList()
		self.blocked_callbacks = WeakMethodList()
		self._conditional_callbacks = {}

		self.__is_moving = False

		self.path = self.pather_class(self, session=self.session)

		self._exact_model_coords1 = fife.ExactModelCoordinate() # save instance since construction is expensive (no other purpose)
		self._exact_model_coords2 = fife.ExactModelCoordinate() # save instance since construction is expensive (no other purpose)
		self._fife_location1 = None
		self._fife_location2 = None

	def check_move(self, destination):
		"""Tries to find a path to destination
		@param destination: destination supported by pathfinding
		@return: object that can be used in boolean expressions (the path in case there is one)
		"""
		return self.path.calc_path(destination, check_only=True)

	def is_moving(self):
		"""Returns whether unit is currently moving"""
		return self.__is_moving

	def stop(self, callback=None):
		"""Stops a unit with currently no possibility to continue the movement.
		The unit actually stops moving when current move (to the next coord) is finished.
		@param callback: a parameter supported by WeakMethodList. is executed immediately if unit isn't moving
		"""
		if not self.is_moving():
			WeakMethodList(callback).execute()
			return
		self.move_callbacks = WeakMethodList(callback)
		self.path.end_move()

	def _setup_move(self, action='move'):
		"""Executes necessary steps to begin a movement. Currently only the action is set."""
		# try a number of actions and use first existent one
		for action_iter in (action, 'move', self._action):
			if self.has_action(action_iter):
				self._move_action = action_iter
				return
		# this case shouldn't happen, but no other action might be available (e.g. ships)
		self._move_action = 'idle'

	def move(self, destination, callback=None, destination_in_building=False, action='move',
	         blocked_callback=None, path=None):
		"""Moves unit to destination
		@param destination: Point or Rect
		@param callback: a parameter supported by WeakMethodList. Gets called when unit arrives.
		@param action: action as string to use for movement
		@param blocked_callback: a parameter supported by WeakMethodList. Gets called when unit gets blocked.
		@param path: a precalculated path (return value of FindPath()())
		"""
		if not path:
			# calculate the path
			move_possible = self.path.calc_path(destination, destination_in_building)

			self.log.debug("%s: move to %s; possible: %s; is_moving: %s", self,
			               destination, move_possible, self.is_moving())

			if not move_possible:
				raise MoveNotPossible
		else:
			self.path.move_on_path(path, destination_in_building=destination_in_building)
#.........这里部分代码省略.........

# 需要导入模块: from horizons.util.python.weakmethodlist import WeakMethodList [as 别名]
# 或者: from horizons.util.python.weakmethodlist.WeakMethodList import execute [as 别名]
class MovingObject(ComponentHolder, ConcreteObject):
	"""This class provides moving functionality and is to be inherited by Unit.
	Its purpose is to provide a cleaner division of the code.

	It provides:
	*attributes:
	- position, last_position: Point
	- path: Pather

	*moving methods:
	- move
	- stop
	- add_move_callback

	*getters/checkers:
	- check_move
	- get_move_target
	- is_moving
	"""
	movable = True

	log = logging.getLogger("world.units")

	pather_class = None # overwrite this with a descendant of AbstractPather

	def __init__(self, x, y, **kwargs):
		super(MovingObject, self).__init__(x=x, y=y, **kwargs)
		self.__init(x, y)

	def __init(self, x, y):
		self.position = Point(x, y)
		self.last_position = Point(x, y)
		self._next_target = Point(x, y)

		self.move_callbacks = WeakMethodList()
		self.blocked_callbacks = WeakMethodList()
		self._conditional_callbacks = {}

		self.__is_moving = False

		self.path = self.pather_class(self, session=self.session)

		self._exact_model_coords = fife.ExactModelCoordinate() # save instance since construction is expensive (no other purpose)
		self._fife_location = None

	def check_move(self, destination):
		"""Tries to find a path to destination
		@param destination: destination supported by pathfinding
		@return: object that can be used in boolean expressions (the path in case there is one)
		"""
		return self.path.calc_path(destination, check_only = True)

	def is_moving(self):
		"""Returns whether unit is currently moving"""
		return self.__is_moving

	def stop(self, callback=None):
		"""Stops a unit with currently no possibility to continue the movement.
		The unit actually stops moving when current move (to the next coord) is finished.
		@param callback: a parameter supported by WeakMethodList. is executed immediately if unit isn't moving
		"""
		if not self.is_moving():
			WeakMethodList(callback).execute()
			return
		self.move_callbacks = WeakMethodList(callback)
		self.path.end_move()

	def _setup_move(self, action='move'):
		"""Executes necessary steps to begin a movement. Currently only the action is set."""
		# try a number of actions and use first existent one
		for action_iter in (action, 'move', self._action):
			if self.has_action(action_iter):
				self._move_action = action_iter
				return
		# this case shouldn't happen, but no other action might be available (e.g. ships)
		self._move_action = 'idle'

	def move(self, destination, callback=None, destination_in_building=False, action='move',
	         blocked_callback=None, path=None):
		"""Moves unit to destination
		@param destination: Point or Rect
		@param callback: a parameter supported by WeakMethodList. Gets called when unit arrives.
		@param action: action as string to use for movement
		@param blocked_callback: a parameter supported by WeakMethodList. Gets called when unit gets blocked.
		@param path: a precalculated path (return value of FindPath()())
		"""
		if not path:
			# calculate the path
			move_possible = self.path.calc_path(destination, destination_in_building)

			self.log.debug("%s: move to %s; possible: %s; is_moving: %s", self,
			               destination, move_possible, self.is_moving())

			if not move_possible:
				raise MoveNotPossible
		else:
			self.path.move_on_path(path, destination_in_building=destination_in_building)

		self.move_callbacks = WeakMethodList(callback)
		self.blocked_callbacks = WeakMethodList(blocked_callback)
#.........这里部分代码省略.........