• 示例：
  

• 1:創建一個箭
  
  -創建一個row節點為箭節點，添加剛體組件，并設置剛體Type為靜態Static-

• 2:創建并掛載腳本
  
  -創建一個腳本并掛載在bg節點上-
  3: code

cc.Class({extends: cc.Component,properties: {},// LIFE-CYCLE CALLBACKS:onLoad () {this.shoot = false;//簡單的狀態cc.director.getPhysicsManager().enabled = true;this.row = this.node.getChildByName("row");this.node.on("touchstart",this.touchStart,this);},touchStart(event){this.shoot = true;let touchPos = event.getLocation();let localPos = this.worldConvertLocalPoint(this.row,touchPos);this.row.getComponent(cc.RigidBody).type = cc.RigidBodyType.Dynamic;//將剛體變為動態this.row.getComponent(cc.RigidBody).applyForceToCenter(cc.v2(localPos.x*200,localPos.y*200));//沖量，按實際需求給},start () {},localConvertWorldPointAR(node) {if (node) {return node.convertToWorldSpaceAR(cc.v2(0, 0));}return null;},worldConvertLocalPoint(node, worldPoint) {if (node) {return node.convertToNodeSpaceAR(worldPoint);}return null;},update (dt) {if(!this.shoot)return;//改變箭的朝向let rowspeed = this.row.getComponent(cc.RigidBody).linearVelocity;//cc.log(rowspeed.x+"|"+rowspeed.y)let r = Math.atan2(rowspeed.y, rowspeed.x);let degree = r * 180 / Math.PI;degree = 360 - degree;degree = degree + 90;this.row.angle = -degree;}, });

-按上述方案就完成了一個使用cocoscreator的射箭效果-

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