path-game/src/pathgame/gameplay/menu/Menu.java

package pathgame.gameplay.menu;

import pathgame.gameplay.Gamestate;
import pathgame.gameplay.Gamestates;
import pathgame.gameplay.Keys;
import pathgame.gameplay.Level;

public class Menu {
    private final static int MAIN_ID;
    private final static int ESCAPE_ID;
    private final static int OPTION_ID;
    private final static int CHARACTER_ID;
    private final static int AFTER_SCORE_ID;

    static {
        int id = 0;
        MAIN_ID = id++;
        ESCAPE_ID = id++;
        OPTION_ID = id++;
        CHARACTER_ID = id++;
        AFTER_SCORE_ID = id++;
    }

    private final BaseMenu[] menus;

    private int currentIndex = 0;

    public Menu(Keys keys) {
        menus = new BaseMenu[]{
            new MainMenu(MAIN_ID, OPTION_ID, CHARACTER_ID),
            new EscMenu(ESCAPE_ID, MAIN_ID),
            new OptionMenu(OPTION_ID, MAIN_ID, keys),
            new CharacterMenu(CHARACTER_ID, MAIN_ID),
            new AfterScoreMenu(AFTER_SCORE_ID, MAIN_ID)
        };
    }

    public void tick(Gamestate gamestate, Level level, Keys keys) {
        if(gamestate.is(Gamestates.MENU)) {
            currentIndex = menus[currentIndex].tick(gamestate, level, keys);
            if(currentIndex == ESCAPE_ID && keys.escape.getTime() == 1) {
                gamestate.setState(Gamestates.GAMEPLAY);
            } else if((currentIndex == OPTION_ID || currentIndex == CHARACTER_ID)
                    && keys.escape.getTime() == 1) {
                currentIndex = MAIN_ID;
            }
        } else if(gamestate.is(Gamestates.GAMEPLAY) && keys.escape.getTime() == 1) {
            currentIndex = ESCAPE_ID;
            gamestate.setState(Gamestates.MENU);
            menus[currentIndex].resetIndex();
        } else if(level.isShowingAfterScore()) {
            currentIndex = AFTER_SCORE_ID;
            gamestate.setState(Gamestates.MENU);
            menus[currentIndex].resetIndex();
        }
    }

    public MenuButton[] getOptions() {
        return menus[currentIndex].getOptions();
    }

    public int getActiveIndex() {
        return menus[currentIndex].getActiveIndex();
    }

    public boolean isOptionMenu() {
        return menus[currentIndex].isOptionMenu();
    }

    public void showEscapeMenu() {
        currentIndex = ESCAPE_ID;
    }
}