[ActionScript 3.0] Away3D 旋转效果

  1 package
  2 {
  3     import away3d.containers.View3D;
  4     import away3d.entities.Mesh;
  5     import away3d.events.MouseEvent3D;
  6     import away3d.materials.TextureMaterial;
  7     import away3d.primitives.PlaneGeometry;
  8     import away3d.utils.Cast;
  9
 10     import flash.display.Sprite;
 11     import flash.display.StageAlign;
 12     import flash.display.StageScaleMode;
 13     import flash.events.Event;
 14
 15     /**
 16      * @author Frost.Yen
 17      * @E-mail [email protected]
 18      * @create 2015-9-23 下午2:58:55
 19      *
 20      */
 21     [SWF(width=‘800‘,height=‘600‘,frameRate="60", backgroundColor="0x000000")]
 22
 23     public class Away3dRoll extends Sprite
 24     {
 25         //floor的贴图图片
 26         [Embed(source = "assets/1.jpg")]
 27         private static var FloorMaterial:Class;
 28         //创建视口
 29         private var _view:View3D;
 30         //创建平面几何对象
 31         private var _planeGeometry:PlaneGeometry;
 32         //创建平面几何对象的容器
 33         private var _planeMesh:Mesh;
 34         //控制旋转方向的变量
 35         private var _direction:Boolean;
 36         public function Away3dRoll()
 37         {
 38             //侦听舞台初始化完毕
 39             if (stage) {
 40                 init();
 41             }else {
 42                 this.addEventListener(Event.ADDED_TO_STAGE, init);
 43             }
 44
 45         }
 46         private function init(e:Event=null):void {
 47             //trace("舞台初始化完成！");
 48             //设置舞台缩放模式和对齐方式
 49             stage.scaleMode = StageScaleMode.NO_SCALE;
 50             stage.align = StageAlign.TOP_LEFT;
 51             this.removeEventListener(Event.ADDED_TO_STAGE, init);
 52
 53             //实例化视口
 54             _view = new View3D();
 55             addChild(_view);
 56             //设置抗锯齿参数
 57             _view.antiAlias = 2;
 58
 59             //实例化一个长宽都是300的平面对象
 60             _planeGeometry = new PlaneGeometry(300, 300);
 61             //实例化平面几何对象的容器，第一个参数是平面几何对象，第二个参数是贴图数据
 62             _planeMesh = new Mesh(_planeGeometry, new TextureMaterial(Cast.bitmapTexture(FloorMaterial)));
 63             //设置容器可交互
 64             _planeMesh.mouseEnabled = true;
 65             //容器侦听鼠标点击事件
 66             _planeMesh.addEventListener(MouseEvent3D.CLICK, clickHandler);
 67
 68             //将容器添加到视口的场景中
 69             _view.scene.addChild(_planeMesh);
 70
 71             //设置摄像机的位置
 72             _view.camera.z = -400;
 73             _view.camera.y = 260;    //可以把这个值改成1试试看，这样可以有更加直观的感受
 74             //_view.camera.x = 90;
 75             //设置摄像机始终指向平面
 76             _view.camera.lookAt(_planeMesh.position);
 77             //_view.camera.lookAt(new Vector3D());
 78
 79             this.addEventListener(Event.ENTER_FRAME, onEnterFrame);
 80             stage.addEventListener(Event.RESIZE, onResize);
 81             onResize();
 82         }
 83
 84         private function clickHandler(e:MouseEvent3D):void {
 85             //鼠标点击变换运动方向
 86             _direction = !_direction;
 87         }
 88
 89         private function onResize(e:Event = null):void {
 90             //调整视口尺寸以适应新的窗口大小
 91             _view.width = stage.stageWidth;
 92             _view.height = stage.stageHeight;
 93         }
 94
 95         private function onEnterFrame(e:Event):void {
 96             //判断方向旋转
 97             if (!_direction) {
 98                 _planeMesh.rotationY += 1;
 99             }else {
100                 _planeMesh.rotationY -= 1;
101             }
102             //渲染3D世界
103             _view.render();
104         }
105
106     }
107 }