squirrel-battle/dungeonbattle/game.py

import sys
from typing import Any

from .entities.player import Player
from .interfaces import Map
from .mapdisplay import MapDisplay
from .settings import Settings
from enum import Enum, auto
from . import menus


class GameMode(Enum):
    MAINMENU = auto()
    PLAY = auto()
    SETTINGS = auto()
    INVENTORY = auto()


class KeyValues(Enum):
    UP = auto()
    DOWN = auto()
    LEFT = auto()
    RIGHT = auto()
    ENTER = auto()


class Game:
    INSTANCE = None

    def init(self) -> None:
        Game.INSTANCE = self
        self.state = GameMode.MAINMENU
        self.main_menu = menus.MainMenu()
        self.settings = Settings()
        self.settings.load_settings()
        self.settings.write_settings()

    def new_game(self) -> None:
        # TODO generate a new map procedurally
        self.m = Map.load("example_map.txt")
        self.player = Player()
        self.player.move(y, x)
        self.m.add_entity(self.player)
        self.d = MapDisplay(self.m, self.player)

    @staticmethod
    def load_game(filename: str) -> None:
        # TODO loading map from a file
        raise NotImplementedError()

    def run(self, screen: Any) -> None:
        while True:
            screen.clear()
            screen.refresh()
            self.d.display(self.player.y, self.player.x)
            key = screen.getkey()
            self.handle_key_pressed(self.translate_key(key))

    def translate_key(self, key: str) -> KeyValues:
        if key in (self.settings.KEY_DOWN_SECONDARY,
                   self.settings.KEY_DOWN_PRIMARY):
            return KeyValues.DOWN
        elif key in (self.settings.KEY_LEFT_PRIMARY,
                     self.settings.KEY_LEFT_SECONDARY):
            return KeyValues.LEFT
        elif key in (self.settings.KEY_RIGHT_PRIMARY,
                     self.settings.KEY_RIGHT_SECONDARY):
            return KeyValues.RIGHT
        elif key in (self.settings.KEY_UP_PRIMARY,
                     self.settings.KEY_UP_SECONDARY):
            return KeyValues.UP
        elif key == self.settings.KEY_ENTER:
            return KeyValues.ENTER

    def handle_key_pressed(self, key: KeyValues) -> None:
        if self.state == GameMode.PLAY:
            if key == KeyValues.UP:
                self.player.move_up()
            if key == KeyValues.DOWN:
                self.player.move_down()
            if key == KeyValues.LEFT:
                self.player.move_left()
            if key == KeyValues.RIGHT:
                self.player.move_right()
        if self.state == GameMode.MAINMENU:
            if key == KeyValues.DOWN:
                self.main_menu.go_down()
            if key == KeyValues.UP:
                self.main_menu.go_up()
            if key == KeyValues.ENTER:
                option = self.main_menu.validate()
                if option == menus.MainMenuValues.START:
                    self.state = GameMode.PLAY
                elif option == menus.MainMenuValues.SETTINGS:
                    self.state = GameMode.SETTINGS
                elif option == menus.MainMenuValues.EXIT:
                    sys.exit(0)