cocos creator2.0 计算两点之间距离 

 1 cc.Class({
 2     extends: cc.Component,
 3 
 4     properties: {
 5     },
 6 
 7     onLoad: function () {
 8         this.startPos = cc.v2(0, 0);  //开始位置
 9         this.endPos = cc.v2(0, 0);    //结束位置
10 
11         this.node.on(cc.Node.EventType.TOUCH_START, function (event) {
12             this.startPos = cc.v2(event.getLocation().x, event.getLocation().y);
13             //获取点击的位置
14             cc.log("起始坐标点：x = " + event.getLocation().x + ", y = " + event.getLocation().y);
15         }, this);
16 
17         this.node.on(cc.Node.EventType.TOUCH_MOVE, function (event) {
18             var delta = event.touch.getDelta();
19             this.node.x += delta.x;
20             this.node.y += delta.y;
21         },this);
22 
23 
24         this.node.on(cc.Node.EventType.TOUCH_END, function (event) {
25 
26             this.endPos = cc.v2(event.getLocation().x, event.getLocation().y);
27             cc.log("终点坐标点 x ：" + event.getLocation().x + ", 终点坐标点 y ：" + event.getLocation().y );
28 
29             let distance = this.startPos.sub(this.endPos).mag();
30             cc.log("移动距离 ：" + distance);
31         }, this);
32 
33     },
34 
35     update: function (dt) {
36 
37     },
38 });

 

posted @ 2018-11-01 11:54  饭桶大叔  阅读(9092)  评论(0)    收藏  举报