package
{
    import away3d.cameras.HoverCamera3D;
    import away3d.containers.*;
    import away3d.primitives.*;

    import flash.display.BlendMode;
    import flash.display.Sprite;
    import flash.events.Event;
    import flash.events.MouseEvent;
    import flash.geom.Vector3D;

    [SWF(width="500", height="400", frameRate="30", backgroundColor="#ffffff")]
	public class ExPlane extends Sprite
	{
		public var view:View3D;
		
		// HoverCam controls
		private var camera:HoverCamera3D;
		private var lastMouseX:Number;
		private var lastMouseY:Number;
		private var lastPanAngle:Number;
		private var lastTiltAngle:Number;
		private var move:Boolean = false;
		
		// Embedded images (comment this entire code block if you're using Flash and then import the images to the library)
		[Embed (source="resources/wheelC.png")]
		private var cTex:Class;
		[Embed (source="resources/wheelM.png")]
		private var mTex:Class;
		[Embed (source="resources/wheelY.png")]
		private var yTex:Class;
		[Embed (source="resources/wheelK.png")]
		private var kTex:Class;
		[Embed (source="resources/wheelW.png")]
		private var wTex:Class;
		
		public function ExPlane()
		{
			super();
			
			// create a 3D-viewport
			camera = new HoverCamera3D({zoom:18, focus:2000, distance:18000});
			view = new View3D({camera:camera,x:250, y:200});
			// add viewport to the stage
			addChild(view);
			camera.lookAt( new Vector3D(0, 0, 0) );
			camera.panAngle = 0;
			camera.tiltAngle = 0;
			camera.minTiltAngle = -90;
            camera.hover(true);
			
			// Add some reference objects
			var cPlane:Plane = new Plane({material:cTex,width:200,height:200,bothsides:true,z:0,ownCanvas:true});
			cPlane.rotationX = 90;
			cPlane.rotationY = 180;
			cPlane.blendMode = BlendMode.MULTIPLY;
			view.scene.addChild(cPlane);
			
			var mPlane:Plane = new Plane({material:mTex,width:200,height:200,bothsides:true,z:-50,ownCanvas:true});
			mPlane.rotationX = 90;
			mPlane.rotationY = 180;
			mPlane.blendMode = BlendMode.MULTIPLY;
			view.scene.addChild(mPlane);
			
			var yPlane:Plane = new Plane({material:yTex,width:200,height:200,bothsides:true,z:-100,ownCanvas:true});
			yPlane.rotationX = 90;
			yPlane.rotationY = 180;
			yPlane.blendMode = BlendMode.MULTIPLY;
			view.scene.addChild(yPlane);
			
			var kPlane:Plane = new Plane({material:kTex,width:200,height:200,bothsides:true,z:-150,ownCanvas:true});
			kPlane.rotationX = 90;
			kPlane.rotationY = 180;
			kPlane.blendMode = BlendMode.MULTIPLY;
			view.scene.addChild(kPlane);
			
			// A final white plane is required as well
			var wPlane:Plane = new Plane({material:wTex,width:200,height:200,bothsides:true,z:-200});
			wPlane.rotationX = 90;
			view.scene.addChild(wPlane);
			
			// Update view
			view.render();
			camera.hover();
			
			// only run when user is hovering
			addEventListener(Event.ENTER_FRAME, update);
            this.stage.addEventListener(MouseEvent.MOUSE_DOWN, MouseDown);
			this.stage.addEventListener(MouseEvent.MOUSE_UP, MouseUp);
		}
		
		public function update(e:Event):void
		{
			// re-render viewport
            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();
		}
		
		private function MouseDown(event:MouseEvent):void
		{
			lastPanAngle = camera.panAngle;
			lastTiltAngle = camera.tiltAngle;
			lastMouseX = stage.mouseX;
			lastMouseY = stage.mouseY;
			move = true;
		}
		
		private function MouseUp(event:MouseEvent):void
		{
			move = false;
		}
		
	}
}