1
0
python-roguelike/input_handlers.py

53 lines
1.4 KiB
Python
Raw Normal View History

from __future__ import annotations
from typing import Optional, TYPE_CHECKING
2022-01-06 11:09:43 -05:00
import tcod.event
2022-01-07 15:52:53 -05:00
from actions import Action, EscapeAction, BumpAction
2022-01-06 11:09:43 -05:00
if TYPE_CHECKING:
from engine import Engine
2022-01-06 11:09:43 -05:00
class EventHandler(tcod.event.EventDispatch[Action]):
def __init__(self, engine: Engine):
self.engine = engine
def handle_events(self) -> None:
for event in tcod.event.wait():
action = self.dispatch(event)
if action is None:
continue
action.perform()
self.engine.handle_enemy_turns()
self.engine.update_fov()
2022-01-06 11:09:43 -05:00
def ev_quit(self, event: tcod.event.Quit) -> Optional[Action]:
raise SystemExit()
def ev_keydown(self, event: tcod.event.KeyDown) -> Optional[Action]:
action: Optional[Action] = None
key = event.sym
player = self.engine.player
2022-01-06 11:09:43 -05:00
if key == tcod.event.K_UP:
action = BumpAction(player, dx=0, dy=-1)
2022-01-06 11:09:43 -05:00
elif key == tcod.event.K_DOWN:
action = BumpAction(player, dx=0, dy=1)
2022-01-06 11:09:43 -05:00
elif key == tcod.event.K_LEFT:
action = BumpAction(player, dx=-1, dy=0)
2022-01-06 11:09:43 -05:00
elif key == tcod.event.K_RIGHT:
action = BumpAction(player, dx=1, dy=0)
2022-01-06 11:09:43 -05:00
elif key == tcod.event.K_ESCAPE:
action = EscapeAction(player)
2022-01-06 11:09:43 -05:00
# No valid key was pressed
return action