squirrel-battle/dungeonbattle/display/display_manager.py

import curses
from dungeonbattle.display.mapdisplay import MapDisplay
from dungeonbattle.display.statsdisplay import StatsDisplay
from dungeonbattle.display.menudisplay import SettingsMenuDisplay, \
    MainMenuDisplay
from dungeonbattle.display.texturepack import TexturePack
from typing import Any
from dungeonbattle.game import Game, GameMode
from dungeonbattle.enums import DisplayActions


class DisplayManager:

    def __init__(self, screen: Any, g: Game):
        self.game = g
        self.screen = screen
        pack = TexturePack.get_pack(self.game.settings.TEXTURE_PACK)
        self.mapdisplay = MapDisplay(screen, pack)
        self.statsdisplay = StatsDisplay(screen, pack)
        self.mainmenudisplay = MainMenuDisplay(self.game.main_menu,
                                               screen, pack)
        self.settingsmenudisplay = SettingsMenuDisplay(screen, pack)
        self.displays = [self.statsdisplay, self.mapdisplay,
                         self.mainmenudisplay, self.settingsmenudisplay]
        self.update_game_components()

    def handle_display_action(self, action: DisplayActions) -> None:
        if action == DisplayActions.REFRESH:
            self.refresh()
        elif action == DisplayActions.UPDATE:
            self.update_game_components()

    def update_game_components(self) -> None:
        for d in self.displays:
            d.pack = TexturePack.get_pack(self.game.settings.TEXTURE_PACK)
        self.mapdisplay.update_map(self.game.map)
        self.statsdisplay.update_player(self.game.player)
        self.settingsmenudisplay.update_menu(self.game.settings_menu)

    def refresh(self) -> None:
        if self.game.state == GameMode.PLAY:
            # The map pad has already the good size
            self.mapdisplay.refresh(0, 0, self.rows * 4 // 5, self.cols,
                                    resize_pad=False)
            self.statsdisplay.refresh(self.rows * 4 // 5, 0,
                                      self.rows // 5, self.cols)
        if self.game.state == GameMode.MAINMENU:
            self.mainmenudisplay.refresh(0, 0, self.rows, self.cols)
        if self.game.state == GameMode.SETTINGS:
            self.settingsmenudisplay.refresh(0, 0, self.rows, self.cols - 1)
        self.resize_window()

    def resize_window(self) -> bool:
        """
        If the window got resized, ensure that the screen size got updated.
        """
        y, x = self.screen.getmaxyx() if self.screen else (0, 0)
        if self.screen and curses.is_term_resized(self.rows,
                                                  self.cols):  # pragma: nocover
            curses.resizeterm(y, x)
            return True
        return False

    @property
    def rows(self) -> int:
        return curses.LINES if self.screen else 42

    @property
    def cols(self) -> int:
        return curses.COLS if self.screen else 42