Cricao de Sites - 650 Layouts Prontos/WebMasters.iso/Templates/Flash/flashmo_097_3d_sphere/org/papervision3d/scenes/FlexScene3D.as

Text File | 2007-07-18 | 5KB | 137 lines

package org.papervision3d.scenes
{
    import flash.display.Sprite;
    import mx.containers.Canvas;
    import org.papervision3d.objects.DisplayObject3D;
    import flash.utils.Dictionary;
    import flash.utils.getTimer;
    import mx.core.UIComponent;

    public class FlexScene3D extends Scene3D
    {
        private var containerList : Array;
        private var spriteList : Dictionary;

        public function FlexScene3D(container:Sprite)
        {
            super(container);

            this.containerList = new Array();
            spriteList = new Dictionary();
        }

        // ___________________________________________________________________ A D D C H I L D
        //
        //   AA   DDDDD  DDDDD   CCCC  HH  HH II LL     DDDDD
        //  AAAA  DD  DD DD  DD CC  CC HH  HH II LL     DD  DD
        // AA  AA DD  DD DD  DD CC     HHHHHH II LL     DD  DD
        // AAAAAA DD  DD DD  DD CC  CC HH  HH II LL     DD  DD
        // AA  AA DDDDD  DDDDD   CCCC  HH  HH II LLLLLL DDDDD

        /**
        * Adds a child DisplayObject3D instance to the scene.
        *
        * If you add a GeometryObject3D symbol, a new DisplayObject3D instance is created.
        *
        * CanvasScene3D is a fix for Flex2 - Its Flex2's version of MovieScene3D.  If you want your objects separated into sprite containers, use CanvasScene3D.
        * I DID try using pure Canvas objects where sprite was used, but I kept getting "index out of range errors" and just kept getting internal Flex errors.
        *
        * [TODO: If you add a child object that already has a different display object container as a parent, the object is removed from the child list of the other display object container.]
        *
        * @param    child    The GeometryObject3D symbol or DisplayObject3D instance to add as a child of the scene.
        * @param    name    An optional name of the child to add or create. If no name is provided, the child name will be used.
        * @return    The DisplayObject3D instance that you have added or created.
        */
        public override function addChild( child :DisplayObject3D, name :String=null ):DisplayObject3D
        {
            child = super.addChild( child, name );

            // for Flex2 we need to create a UIComponent
            var uiDumby:UIComponent = new UIComponent();

            // now create the sprite container
            child.container = new Sprite();

            // add the sprite to the UIComponent - which is legal, but adding a sprite to a Canvas or any other sub classed UIComponent is not
            uiDumby.addChild(child.container);

            // now add the uiDumby to the canvas container
            container.addChild( uiDumby );

            // push for use in the renderer
            this.containerList.push( child.container );
            spriteList[child] = child.container;
            return child;
        }

        public function getSprite(child:DisplayObject3D):Canvas
        {
            return spriteList[child];
        }

        // ___________________________________________________________________ R E N D E R   C A M E R A
        //
        // RRRRR  EEEEEE NN  NN DDDDD  EEEEEE RRRRR
        // RR  RR EE     NNN NN DD  DD EE     RR  RR
        // RRRRR  EEEE   NNNNNN DD  DD EEEE   RRRRR
        // RR  RR EE     NN NNN DD  DD EE     RR  RR
        // RR  RR EEEEEE NN  NN DDDDD  EEEEEE RR  RR CAMERA

        /**
        * Generates an image from the camera's point of view and the visible models of the scene.
        *
        * @param    camera        camera to render from.
        */
        protected override function renderObjects( sort:Boolean ):void
        {
            var objectsLength :Number = this.objects.length;

            // Clear object container
            var gfx                                  :Sprite;
            var containerList                         :Array = this.containerList;
            var i                                    :Number = 0;

            // Clear all known object
            while( gfx = containerList[i++] ) gfx.graphics.clear();

            // Render
            var p                                   :DisplayObject3D;
            var objects                             :Array  = this.objects;
            i = objects.length;

            if( sort )
            {
                while( p = objects[--i] )
                {
                    if( p.visible )
                    {
                        // this keeps the memory consumption stable.  Otherwise, there was a slight memory leak with each render
                        if(container.getChildByName("container")) container.removeChild(container.getChildByName("container"));

                        // same trick: add sprite to a UIComponent stand-in
                        var uiDumby:UIComponent = new UIComponent();
                        uiDumby.name = "container";

                        uiDumby.addChild(p.container);
                        container.addChild( uiDumby );
                        p.render( this );
                    }
                }
            }
            else
            {
                while( p = objects[--i] )
                {
                    if( p.visible )
                    {
                        p.render( this );
                    }
                }
            }

            // Update stats
            var stats:Object  = this.stats;
            stats.performance = getTimer() - stats.performance;
        }
    }
}