31 lines
878 B
Python
31 lines
878 B
Python
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from typing import Optional
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import tcod.event
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from actions import Action, EscapeAction, MovementAction
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class EventHandler(tcod.event.EventDispatch[Action]):
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def ev_quit(self, event: tcod.event.Quit) -> Optional[Action]:
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raise SystemExit()
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def ev_keydown(self, event: tcod.event.KeyDown) -> Optional[Action]:
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action: Optional[Action] = None
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key = event.sym
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if key == tcod.event.K_UP:
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action = MovementAction(dx=0, dy=-1)
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elif key == tcod.event.K_DOWN:
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action = MovementAction(dx=0, dy=1)
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elif key == tcod.event.K_LEFT:
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action = MovementAction(dx=-1, dy=0)
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elif key == tcod.event.K_RIGHT:
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action = MovementAction(dx=1, dy=0)
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elif key == tcod.event.K_ESCAPE:
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action = EscapeAction()
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# No valid key was pressed
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return action
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