Stepwise/source/actions.py

27 lines
558 B
Python

from engine import Engine
from entity import Entity
class Action:
def apply(self, engine: Engine) -> None:
raise NotImplementedError()
class QuitAction(Action):
def apply(self, engine: Engine) -> None:
raise SystemExit()
class MoveAction(Action):
def __init__(self, entity: Entity, xdir: int, ydir: int):
super().__init__()
self.entity = entity
self.xdir = xdir
self.ydir = ydir
def apply(self, engine: Engine) -> None:
x = self.entity.x + self.xdir
y = self.entity.y + self.ydir
#TODO: bounds checks
self.entity.set_pos(x, y)