var Common = require('JoystickCommon');

cc.Class({
    extends: cc.Component,

    properties: {
        dot: {
            default: null,
            type: cc.Node,
            displayName: 'point',
        },

        _joyCom: {
            default: null,
            displayName: 'joy Node',

        },
        

        _angle: {
            default: null,
            displayName: 'toujaodu',

        },
       
        _radian: {
            default: null,
            displayName: 'hudu',
        },      


        _speed: 0,          //
        _speed1: 1,         //
        _speed2: 2,         //
        _opacity: 0,        //
    },


    onLoad: function()
    {
       
        this._joyCom = this.node.parent.getComponent('Joystick');
     
    
        if(this._joyCom.touchType == Common.TouchType.DEFAULT){
          
            this._initTouchEvent();
        }
    },

    onDestroy(){
        var self = this;

        self.node.off(cc.Node.EventType.TOUCH_START, this._touchStartEvent, self);

        self.node.off(cc.Node.EventType.TOUCH_MOVE, this._touchMoveEvent, self);

       
        self.node.off(cc.Node.EventType.TOUCH_END, this._touchEndEvent, self);
        self.node.off(cc.Node.EventType.TOUCH_CANCEL, this._touchEndEvent, self);
    },

    _initTouchEvent: function()
    {
        var self = this;

        self.node.on(cc.Node.EventType.TOUCH_START, this._touchStartEvent, self);

        self.node.on(cc.Node.EventType.TOUCH_MOVE, this._touchMoveEvent, self);


        self.node.on(cc.Node.EventType.TOUCH_END, this._touchEndEvent, self);
        self.node.on(cc.Node.EventType.TOUCH_CANCEL, this._touchEndEvent, self);
    },

    
    update: function(dt)
    {
        // switch (this._joyCom.directionType)
        // {
        //     case Common.DirectionType.ALL:   
        //         this._allDirectionsMove();
        //         break;
        //     default :
        //         break;
        // }
    },

    _allDirectionsMove: function()
    {
        // this._playerNode.x += Math.cos(this._angle * (Math.PI/180)) * this._speed;
        // this._playerNode.y += Math.sin(this._angle * (Math.PI/180)) * this._speed;
    },

   
    _getDistance: function(pos1, pos2)
    {
        return Math.sqrt(Math.pow(pos1.x - pos2.x, 2) +
        Math.pow(pos1.y - pos2.y, 2));
    },


    _getRadian: function(point)
    {
        this._radian = Math.PI / 180 * this._getAngle(point);
        return this._radian;
    },

  
    _getAngle: function(point)
    {
        
        var pos = this.node.getPosition();
        this._angle = Math.atan2(point.y - pos.y, point.x - pos.x) * (180/Math.PI);
        return this._angle;
    },

   
    _setSpeed: function(point)
    {
       
        var distance = this._getDistance(point, this.node.getPosition());

      
        if(distance < this._radius)
        {
            this._speed = this._speed1;
        }
        else
        {
            this._speed = this._speed2;
        }
    },

    _touchStartEvent: function(event) {
       
        var touchPos = this.node.convertToNodeSpaceAR(event.getLocation());
       
        var distance = this._getDistance(touchPos,cc.v2(0,0));
        
        var radius = this.node.width / 2;
    
        this._stickPos = touchPos;
        var posX = this.node.getPosition().x + touchPos.x;
        var posY = this.node.getPosition().y + touchPos.y;

        this._joyCom.startCb&&this._joyCom.startCb(event.getLocation());
        
        
        if(radius > distance)
        {
            this.dot.setPosition(cc.v2(posX, posY));
            return true;
        }
        return false;
    },

    _touchMoveEvent: function(event){
        var touchPos = this.node.convertToNodeSpaceAR(event.getLocation());
        var distance = this._getDistance(touchPos,cc.v2(0,0));
        var radius = this.node.width / 2;
       
        var posX = this.node.getPosition().x + touchPos.x;
        var posY = this.node.getPosition().y + touchPos.y;
        if(radius > distance)
        {
            this.dot.setPosition(cc.v2(posX, posY));
        }
        else
        {
           
            var x = this.node.getPosition().x + Math.cos(this._getRadian(cc.v2(posX,posY))) * radius;
            var y = this.node.getPosition().y + Math.sin(this._getRadian(cc.v2(posX,posY))) * radius;
            this.dot.setPosition(cc.v2(x, y));
        }
      
        this._getAngle(cc.v2(posX,posY));
       

        this._joyCom.moveCb&&this._joyCom.moveCb(this._angle,distance,event.getLocation());

    },

    _touchEndEvent: function(){
        this.dot.setPosition(this.node.getPosition());
        this._speed = 0;
        this._joyCom.endCb&&this._joyCom.endCb();
    },
});