import { _decorator, Component, Node } from 'cc';
import { CreateMap } from './CreateMap';
import { PlayerCtl } from './PlayerCtl';
import { Singleton } from '../Tools/Singleton';
const { ccclass, property } = _decorator;

export enum GameState
{
    start,
    play,
    pause,
    exit,
    win,
    fail
}

//状态模式
export interface baseState
{
    enterState();
    beingState();
    exitState();
}

@ccclass('StartState')
export class StartState implements baseState{
    //初始化场景，生成地图,播放背景音乐
    enterState(){
        CreateMap.getInstance().onLoad();
    }
    beingState(){

    }
    //进入玩的状态
    exitState(){
        
    }
}

@ccclass('PlayState')
export class PlayState implements baseState{
    //玩家能触摸以及发射射线，播放背景音乐
    enterState(){
        PlayerCtl.instance.touchLock=false;
    }
    beingState(){

    }
    //玩家进入新的状态
    exitState(){

    }
}

@ccclass('WinState')
export class WinState implements baseState{
    //玩家赢了,弹出界面
    enterState(){

    }
    //禁止对当前UI外操作
    beingState(){

    }
    //返回大厅
    exitState(){

    }
}

@ccclass('FailState')
export class FailState implements baseState{
    //玩家输了,弹出界面，停止播放当前背景音乐，播放失败音效
    enterState(){

    }
    //禁止对当前UI外操作
    beingState(){

    }
    //返回大厅
    exitState(){

    }
}

@ccclass('StateManager')
export class StateManager{
    private currentState:baseState;

    public static getInstance(): StateManager {
        return Singleton.getInstance(StateManager);
    }

    //初始化状态
    public initState(){
        this.currentState=new StartState();
        this.currentState.enterState();
    }

    //修改状态
    setState(state: baseState) {
        if (this.currentState) {
            this.currentState.exitState();
        }
        this.currentState = state;
        this.currentState.enterState();
    }

    getState(){
        return this.currentState;
    }

    onDestroy() {
        if(this.currentState){
            this.currentState=null;
        }
    }

}