import AccountModel from "../../data/Account/AccountModel";
import UIHelp from "../../framework/ui/UIHelp";
import Utils from "../../framework/utils/utils";
import UIPauseView from "../../ui/uiview/Interface/UIPauseView";
import { EVENT_TYPE, JOY_STATE } from "./gameEnum";
import gameEventManager from "./gameEventManager";


const { ccclass, property } = cc._decorator;
/**遥感类 */
@ccclass
export default class JoyStick extends cc.Component {
    @property(cc.Node)
    /**中心节点 */
    btn: cc.Node = null;
    bJoy: boolean = true;
    bguide: boolean = true; //是否可以引导
    isPause = false;
	protected static _instance = null;
    static getInstance(): JoyStick {
		return JoyStick._instance;
	}

	static setInstance(instance: JoyStick) {
		JoyStick._instance = instance;
	}

    start() {
        this.bguide = AccountModel.getInstance().is_new == 1 ? true : false;
    }

    onEnable() {
        JoyStick.setInstance(this);

        this.node.on(cc.Node.EventType.TOUCH_START, this.touchStart, this);
        this.node.on(cc.Node.EventType.TOUCH_MOVE, this.touchMove, this);
        this.node.on(cc.Node.EventType.TOUCH_END, this.touchEnd, this);
        this.node.on(cc.Node.EventType.TOUCH_CANCEL, this.touchEnd, this);
        gameEventManager.on(EVENT_TYPE.CHANGE_STATUS, this.changeStatue, this);
        gameEventManager.on(EVENT_TYPE.CANT_JOY, this.cantJoy, this);
    }


    onDisable() {
        this.node.off(cc.Node.EventType.TOUCH_START, this.touchStart, this);
        this.node.off(cc.Node.EventType.TOUCH_MOVE, this.touchMove, this);
        this.node.off(cc.Node.EventType.TOUCH_END, this.touchEnd, this);
        this.node.off(cc.Node.EventType.TOUCH_CANCEL, this.touchEnd, this);
        gameEventManager.off(EVENT_TYPE.CHANGE_STATUS, this.changeStatue, this);
        gameEventManager.off(EVENT_TYPE.CANT_JOY, this.cantJoy, this);
    }

    changeStatue(flag) {
        //维护遥感状态机
        if (this.isPause && !flag){
            this.touchStart();
        }
        this.isPause = flag;
    }

    cantJoy(bJoy) {
        this.bJoy = bJoy;
    }

    update() {
        if (this.bguide == false) {
            if (this.node.$hand && this.node.$guideLb) {
                this.node.$hand.destroy();
                this.node.$guideLb.destroy();
            }
        }
    }

    /**
     * 触摸开始
     * @param event 触摸信息
     */
    private touchStart() {
        //发送遥感开始事件
        gameEventManager.emit(EVENT_TYPE.joy_stick, JOY_STATE.start, 0, 0);
        if (this.bguide) {
            this.bguide = false;
        }
    }
    /**
     * 触摸移动
     * @param event 触摸信息
     */
    private touchMove(event: cc.Event.EventTouch) {
        if (this.isPause) {
            if (this.btn.x != 0){
                //强行归位
                this.touchEnd();
            }
            return;
        }
        if (!this.bJoy) { return };
        let pos = event.getLocation();
        pos = this.node.convertToNodeSpaceAR(pos);
        if (pos.mag() > 0) {
            let rad = Math.acos(pos.x / pos.mag());
            if (pos.y < 0) {
                rad = Math.PI * 2 - rad;
            }
            let angle = rad / Math.PI * 180;
            let len = (this.node.width - this.btn.width) / 2;
            let power = pos.mag() / len;
            if (power > 1) {
                power = 1;
                pos = pos.normalize().mul(len);
            }
            this.btn.setPosition(pos);
            //发送遥感移动事件
            gameEventManager.emit(EVENT_TYPE.joy_stick, JOY_STATE.move, angle, power);
        }
    }
    /**
     * 触摸结束
     * @param event 触摸信息
     */
    private touchEnd() {
        this.btn.setPosition(0, 0);
        //发送遥感结束事件
        gameEventManager.emit(EVENT_TYPE.joy_stick, JOY_STATE.end, 0, 0);
    }
}