squirrel-battle/squirrelbattle/menus.py

142 lines
4.3 KiB
Python

# Copyright (C) 2020 by ÿnérant, eichhornchen, nicomarg, charlse
# SPDX-License-Identifier: GPL-3.0-or-later
from enum import Enum
from typing import Any, Optional
from .display.texturepack import TexturePack
from .entities.player import Player
from .entities.friendly import Merchant
from .enums import GameMode, KeyValues, DisplayActions
from .settings import Settings
from .translations import gettext as _, Translator
class Menu:
"""
A Menu object is the logical representation of a menu in the game
"""
values: list
def __init__(self):
self.position = 0
def go_up(self) -> None:
"""
Moves the pointer of the menu on the previous value
"""
self.position = max(0, self.position - 1)
def go_down(self) -> None:
"""
Moves the pointer of the menu on the next value
"""
self.position = min(len(self.values) - 1, self.position + 1)
def validate(self) -> Any:
"""
Selects the value that is pointed by the menu pointer
"""
return self.values[self.position]
class MainMenuValues(Enum):
"""
Values of the main menu
"""
START = "New game"
RESUME = "Resume"
SAVE = "Save"
LOAD = "Load"
SETTINGS = "Settings"
EXIT = "Exit"
def __str__(self):
return _(self.value)
class MainMenu(Menu):
"""
A special instance of a menu : the main menu
"""
values = [e for e in MainMenuValues]
class SettingsMenu(Menu):
"""
A special instance of a menu : the settings menu
"""
waiting_for_key: bool = False
def update_values(self, settings: Settings) -> None:
self.values = list(settings.__dict__.items())
self.values.append(("RETURN", ["", _("Back")]))
def handle_key_pressed(self, key: Optional[KeyValues], raw_key: str,
game: Any) -> None:
"""
In the setting menu, we van select a setting and change it
"""
if not self.waiting_for_key:
# Navigate normally through the menu.
if key == KeyValues.SPACE or \
key == KeyValues.ENTER and \
self.position == len(self.values) - 1:
# Go back
game.display_actions(DisplayActions.UPDATE)
game.state = GameMode.MAINMENU
if key == KeyValues.DOWN:
self.go_down()
if key == KeyValues.UP:
self.go_up()
if key == KeyValues.ENTER and self.position < len(self.values) - 1:
# Change a setting
option = self.values[self.position][0]
if option == "TEXTURE_PACK":
game.settings.TEXTURE_PACK = \
TexturePack.get_next_pack_name(
game.settings.TEXTURE_PACK)
game.settings.write_settings()
self.update_values(game.settings)
elif option == "LOCALE":
game.settings.LOCALE = 'fr' if game.settings.LOCALE == 'en'\
else 'de' if game.settings.LOCALE == 'fr' else 'en'
Translator.setlocale(game.settings.LOCALE)
game.settings.write_settings()
self.update_values(game.settings)
else:
self.waiting_for_key = True
self.update_values(game.settings)
else:
option = self.values[self.position][0]
# Don't use an already mapped key
if any(getattr(game.settings, opt) == raw_key
for opt in game.settings.settings_keys if opt != option):
return
setattr(game.settings, option, raw_key)
game.settings.write_settings()
self.waiting_for_key = False
self.update_values(game.settings)
class InventoryMenu(Menu):
player: Player
def update_player(self, player: Player) -> None:
self.player = player
@property
def values(self) -> list:
return self.player.inventory
class StoreMenu(Menu):
merchant: Merchant
def update_merchant(self, merchant: Merchant) -> None:
self.merchant = merchant
@property
def values(self) -> list:
return self.merchant.inventory