pv3d(三)camera

package {
    import fl.controls.Slider;
    import fl.events.SliderEvent;
    import flash.display.Sprite;
    import flash.display.Shape;
    import flash.events.Event;
    import flash.text.TextField;
    import flash.text.TextFormat;
    import org.papervision3d.core.clipping.FrustumClipping;
    import org.papervision3d.materials.ColorMaterial;
    import org.papervision3d.objects.DisplayObject3D;
    import org.papervision3d.objects.primitives.Plane;
    import org.papervision3d.view.BasicView;
    [SWF(width="600",height="800",frameRate="40",backgroundColor="#000000")]
    public class CameraSettingsDemo extends BasicView {
        private var camTarget:DisplayObject3D;
        private var sliderValuesMin:Array;//装载slider最小值
        private var sliderValuesMax:Array;//装载slider最大值
        private var menuContainer:Sprite;//装载Slider实例的容器
        private var textFields:Array;//装载TextField实例
        private var initialValues:Array;//装载获取值

        private var numberOfSliders:uint;
        private var nearPlane:Plane;
        private var addCounter:uint;
        private var viewportSize:int=480;

        public function CameraSettingsDemo() {
            super(viewportSize, viewportSize,false,true,"Free");
            init();
            createSliders();
            startRendering();
        }
        private function sliderChangedListener(event:SliderEvent):void {
            switch (event.target.name) {
                case "0" :
                    camera.zoom=event.target.value;
                    textFields[0].text="camera.zoom: "+camera.zoom;
                    Slider(menuContainer.getChildByName("2")).value=camera.fov;
                    textFields[2].text="camera.fov: "+Math.round(camera.fov);
                    break;
                case "1" :
                    camera.focus=event.target.value;
                    textFields[1].text="camera.focus: "+Math.round(camera.focus);
                    Slider(menuContainer.getChildByName("2")).value=camera.fov;
                    textFields[2].text="camera.fov: "+Math.round(camera.fov);
                    break;
                case "2" :
                    camera.fov=event.target.value;
                    textFields[2].text="camera.fov: "+Math.round(camera.fov);
                    Slider(menuContainer.getChildByName("1")).value=camera.focus;
                    textFields[1].text="camera.focus: "+Math.round(camera.focus);
                    break;
                case "3" :
                    camera.x=event.target.value;
                    textFields[3].text="camera.x: "+camera.x;
                    break;
                case "4" :
                    camera.y=event.target.value;
                    textFields[4].text="camera.y: "+camera.y;
                    break;
                case "5" :
                    camera.z=event.target.value;
                    textFields[5].text="camera.z: "+camera.z;
                    Slider(menuContainer.getChildByName("2")).value=camera.fov;
                    textFields[2].text="camera.fov: "+Math.round(camera.fov);
                    Slider(menuContainer.getChildByName("1")).value=camera.focus;
                    textFields[1].text="camera.focus: "+Math.round(camera.focus);
                    break;
                case "6" :
                
                    viewport.viewportWidth=viewport.viewportHeight=viewportSize*(event.target.value)/100;
                    viewport.x=stage.stageWidth/2-viewport.viewportWidth/2;
                    viewport.y=stage.stageHeight/2-viewport.viewportHeight/2;
                    textFields[6].text="viewport: "+viewport.viewportWidth;
                    Slider(menuContainer.getChildByName("2")).value=camera.fov;
                    textFields[2].text="camera.fov: "+Math.round(camera.fov);
                    Slider(menuContainer.getChildByName("1")).value=camera.focus;
                    textFields[1].text="camera.focus: "+Math.round(camera.focus);
                    viewport.graphics.clear();
                    viewport.graphics.lineStyle(2, 0xffffff);
                    viewport.graphics.drawRect(0, 0, viewport.viewportWidth, viewport.viewportHeight);
                    break;

                default :
                    break;
            }
            

        }

        public function init():void {
            camera.z=-201;
            camera.useClipping=false;
            camera.useCulling=true;
            viewport.graphics.lineStyle(2, 0xffffff);
            viewport.graphics.drawRect(0, 0, viewport.viewportWidth, viewport.viewportHeight);
            viewport.x=stage.stageWidth/2-viewport.viewportWidth/2;
            viewport.y=stage.stageHeight/2-viewport.viewportHeight/2;
            renderer.clipping=new FrustumClipping(FrustumClipping.NEAR);
            
            camTarget=new Plane(new ColorMaterial(0x0000ff),200,200);
            camTarget.z=2000;
            scene.addChild(camTarget);
            
            camera.target = camTarget;
            
            
            textFields=[];
            sliderValuesMin=[1,1,1,-100,-100,-2500,0];
            sliderValuesMax=[100,100,100,100,100,2000,100];
            initialValues=[camera.zoom,camera.focus,camera.fov,camera.x,camera.y,camera.z,viewport.viewportWidth];
            
            var plane:Plane=null;
            var planeMaterial:ColorMaterial=new ColorMaterial(0xff0000);
            for (var i:int=0; i<4; i++) {
                plane=new Plane(planeMaterial,200,200,4,4);
                plane.localRotationY=90;
                plane.z=i*300;
                plane.x=-300;
                scene.addChild( plane);
            }
            for (i=0; i<4; i++) {
                plane=new Plane(planeMaterial,200,200,4,4);
                plane.localRotationY=-90;
                plane.z=i*300;
                plane.x=300;
                scene.addChild( plane);
            }
            
            

        }

        override protected function onRenderTick(event:Event = null):void {
            super.onRenderTick();

        }

        private function createSliders():void {
            menuContainer = new Sprite();
            addChild(menuContainer);
            var slider:Slider=null;
            numberOfSliders=7;
            trace(camera.x,camera.y,camera.z);
            for (var i:int=0; i<numberOfSliders; i++) {
                slider= new Slider();
                slider.name=String(i);
                //addChild(slider);
                slider.x=i*100;
                slider.liveDragging=true;
                slider.minimum=sliderValuesMin[i];
                slider.maximum=sliderValuesMax[i];
                slider.value=initialValues[i];


                slider.addEventListener(SliderEvent.CHANGE, sliderChangedListener);
                menuContainer.addChild(slider);
                textFields[i] = new TextField();
                textFields[i].defaultTextFormat = new TextFormat(null,null,0xFFFFFF);
                textFields[i].selectable=false;
                //textFields[i].background=true;
                textFields[i].height=20;

                textFields[i].x=i*100;
                textFields[i].y=20;
                menuContainer.addChild(textFields[i]);
                if (i==5) {
                    slider.width=200;

                    slider.x=0;
                    slider.y=40;
                    textFields[i].x=0;
                    textFields[i].y=60;


                }
                if (i==6) {
                    slider.width=100;

                    slider.x=300;
                    slider.y=40;
                    textFields[i].x=300;
                    textFields[i].y=60;


                }
            }
            menuContainer.x=stage.stageWidth/2-menuContainer.width/2;
            menuContainer.y=600;
            textFields[0].text="camera.zoom: "+initialValues[0];
            textFields[1].text="camera.focus: "+Math.round(initialValues[1]);
            textFields[2].text="camera.fov: "+Math.round(initialValues[2]);
            textFields[3].text="camera.x: "+Math.round(initialValues[3]);
            textFields[4].text="camera.y: "+Math.round(initialValues[4]);
            textFields[5].text="camera.z: "+initialValues[5];
            textFields[6].text="viewport: "+initialValues[6];

        }

    }
}