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Text File | 2007-07-18 | 6KB | 171 lines

/*
 *  PAPER    ON   ERVIS  NPAPER ISION  PE  IS ON  PERVI IO  APER  SI  PA
 *  AP  VI  ONPA  RV  IO PA     SI  PA ER  SI NP PE     ON AP  VI ION AP
 *  PERVI  ON  PE VISIO  APER   IONPA  RV  IO PA  RVIS  NP PE  IS ONPAPE
 *  ER     NPAPER IS     PE     ON  PE  ISIO  AP     IO PA ER  SI NP PER
 *  RV     PA  RV SI     ERVISI NP  ER   IO   PE VISIO  AP  VISI  PA  RV3D
 *  ______________________________________________________________________
 *  papervision3d.org � blog.papervision3d.org � osflash.org/papervision3d
 */

/*
 * Copyright 2006 (c) Carlos Ulloa Matesanz, noventaynueve.com.
 *
 * Permission is hereby granted, free of charge, to any person
 * obtaining a copy of this software and associated documentation
 * files (the "Software"), to deal in the Software without
 * restriction, including without limitation the rights to use,
 * copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following
 * conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */

// __________________________________________________________________________ MOVIE MATERIAL

package org.papervision3d.materials
{
import flash.geom.Matrix;
import flash.display.MovieClip;
import flash.display.BitmapData;
import flash.utils.Dictionary;

/**
* The MovieMaterial class creates a texture from an existing MovieClip instance.
* <p/>
* The texture can be animated and/or transparent. Current scale and color values of the MovieClip instance will be used. Rotation will be discarded.
* <p/>
* The MovieClip's content needs to be top left aligned with the registration point.
* <p/>
* Materials collects data about how objects appear when rendered.
*/
public class MovieMaterial extends BitmapMaterial
{

    // ______________________________________________________________________ PUBLIC

    /**
    * The MovieClip that is used as a texture.
    */
    public var movie :MovieClip;

    /**
    * A Boolean value that determines whether the MovieClip is transparent. The default value is false, which is much faster.
    */
    public var movieTransparent :Boolean;


    // ______________________________________________________________________ ANIMATED

    /**
    * A Boolean value that determines whether the texture is animated.
    *
    * If set, the material must be included into the scene so the BitmapData texture can be updated when rendering. For performance reasons, the default value is false.
    */
    public function get animated():Boolean
    {
        return animatedMaterials[ this ];
    }

    public function set animated( status:Boolean ):void
    {
        animatedMaterials[ this ] = status;
    }

    // ______________________________________________________________________ NEW

    /**
    * The MovieMaterial class creates a texture from an existing MovieClip instance.
    *
    * @param    asset            A String that contains an existing MovieClip library id.
    * @param    transparent        [optional] - If it's not transparent, the empty areas of the MovieClip will be of fill32 color. Default value is false.
    * @param    initObject        [optional] - An object that contains additional properties with which to populate the newly created material.
    */
    public function MovieMaterial( asset:*, transparent:Boolean=false, initObject:Object=null )
    {
        super( initBitmap( asset, transparent ), initObject );

        animatedMaterials[ this ] = false;
    }


    // ______________________________________________________________________ UPDATE

    /**
    * Updates animated MovieClip bitmap.
    *
    * Draws the current MovieClip image onto bitmap.
    */
    public override function updateBitmap():void
    {
        var tex :BitmapData = this.bitmap;
        var mov :MovieClip  = this.movie;

        tex.fillRect( tex.rect, this.fillColor );

        var mtx:Matrix = new Matrix();
        mtx.scale( mov.scaleX, mov.scaleY );

        tex.draw( mov, mtx, mov.transform.colorTransform );

        extendBitmapEdges( tex, mov.width, mov.height );
    }


    // ______________________________________________________________________ CREATE BITMAP

    protected override function createBitmap( asset:* ):BitmapData
    {
        // Dispose of previous bitmap
        if( this.bitmap ) this.bitmap.dispose();

        // Create new bitmap
        this.bitmap = correctBitmap( new BitmapData( asset.width, asset.height, this.movieTransparent ), true );

        // Draw bitmap
        this.movie = asset;
        updateBitmap();

        return this.bitmap;
    }

    // ______________________________________________________________________ CREATE BITMAP

    /**
    * Updates bitmap on all animated MovieMaterial instances.
    */
    static public function updateAnimatedBitmaps():void
    {
        for( var material:Object in animatedMaterials )
        {
            if( animatedMaterials[ material ] )
            {
                material.updateBitmap();
            }
        }
    }

    // ______________________________________________________________________ PRIVATE

    private function initBitmap( asset:*, transparent:Boolean ):*
    {
        this.movieTransparent = transparent || false;

        return asset;
    }

    static private var animatedMaterials :Dictionary = new Dictionary( false );
}
}