away3d demo HoverCamera3D

gistfile1.as

package
{
	import away3d.cameras.HoverCamera3D;
	import away3d.containers.ObjectContainer3D;
	import away3d.containers.Scene3D;
	import away3d.containers.View3D;
	import away3d.materials.VideoMaterial;
	import away3d.primitives.Cube;
	import away3d.primitives.Trident;
	import flash.display.Sprite;
	import flash.display.StageAlign;
	import flash.display.StageScaleMode;
	import flash.events.Event;
	import flash.events.MouseEvent;
	
	public class Main extends Sprite
	{
		private var scene:Scene3D;
		private var view:View3D;
		private var material:VideoMaterial;
		private var cube:Cube;
		private var container:ObjectContainer3D;
		private var lastRotationX:Number;
		private var lastRotationY:Number;
		private var move:Boolean;
		private var lastMouseY:Number;
		private var lastMouseX:Number
		private var camera:HoverCamera3D;;
		private var lastPanAngle:Number;
		private var lastTiltAngle:Number;
		
		public function Main():void
		{
			if (stage)
				init();
			else
				addEventListener(Event.ADDED_TO_STAGE, init);
		}
		
		private function init(e:Event = null):void
		{
			removeEventListener(Event.ADDED_TO_STAGE, init);
			// entry point
			
			stage.align = StageAlign.TOP_LEFT;
			stage.scaleMode = StageScaleMode.NO_SCALE;
			
			init3D();
		}
		
		private function init3D():void
		{
			scene = new Scene3D();
			camera = new HoverCamera3D();
			camera.z = -1000; // make sure the camera is positioned away from the default 0,0,0 coordinate
			camera.panAngle = 45;
			camera.tiltAngle = 5;
			camera.hover(true);
			camera.minTiltAngle = -90;
			
			view = new View3D();
			view.x = stage.stageWidth / 2;
			view.y = stage.stageHeight / 2;
			view.scene = scene;
			view.camera = camera;
			addChild(view);
			
			var axis:Trident = new Trident(250, true);
			scene.addChild(axis);
			
			// 拿 flv 的材質
			material = new VideoMaterial();
			material.loop = true;
			material.file = "video/1.flv";
			material.smooth = true;
			
			cube = new Cube();
			cube.material = material;
			cube.width = 200;
			cube.height = 200;
			cube.depth = 200;
			
			container = new ObjectContainer3D(cube);
			scene.addChild(container);
			
			addEventListener(Event.ENTER_FRAME, _onEnterFrame);
			addEventListener(Event.ADDED_TO_STAGE, _onAddedToStage);
		}
		
		private function _onAddedToStage(e:Event):void
		{
			removeEventListener(Event.ADDED_TO_STAGE, _onAddedToStage);
			
			view.x = stage.stageWidth / 2;
			view.y = stage.stageHeight / 2;
			
			stage.addEventListener(MouseEvent.MOUSE_DOWN, onMouseDown);
			stage.addEventListener(MouseEvent.MOUSE_UP, onMouseUp);
		}
		
		private function onMouseUp(e:MouseEvent):void
		{
			move = false;
		}
		
		private function onMouseDown(e:MouseEvent):void
		{
			lastPanAngle = camera.panAngle;
			lastTiltAngle = camera.tiltAngle;
			lastMouseX = mouseX;
			lastMouseY = mouseY;
			move = true;
		}
		
		private function _onEnterFrame(e:Event):void
		{
			var cameraSpeed:Number = 0.3; // Approximately same speed as mouse movement.
			if (move) {
				camera.panAngle = cameraSpeed*(stage.mouseX - lastMouseX) + lastPanAngle;
				camera.tiltAngle = cameraSpeed*(stage.mouseY - lastMouseY) + lastTiltAngle;
			}
			camera.hover();
			view.render();
		}
	
	}

}