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Dead Code Preservation :: Archived AS3 works from wonderfl.net

forked from: [etude] Native3D

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by wlidha79 26 Feb 2012
/**
 * Copyright wlidha79 ( http://wonderfl.net/user/wlidha79 )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/ykfV
 */

// forked from sekiryou's [etude] Native3D
package {
    import flash.display.*;
    import flash.geom.*;
    import flash.text.*;
    import flash.events.Event;
    import flash.utils.ByteArray;
    import flash.filters.BlurFilter;
    
    [SWF(width = "465", height = "465", backgroundColor = "0x000000", frameRate = "30")]
    
    public class etudeNative3D extends Sprite {
        private const STAGE_WIDTH:uint = 465;
        private const STAGE_HEIGHT:uint = 465;
        private const STAGE_CENTER_X:Number = STAGE_WIDTH * 0.5;
        private const STAGE_CENTER_Y:Number = STAGE_HEIGHT * 0.5;
        private var _canvas:BitmapData;
        private var _glow:BitmapData;
        private var _rect:Rectangle;
        private var _cTra:ColorTransform;
        private var mapList:Array = [];
        private var totalParticle:uint = 3600;
        private var particles:Array = [];
        private var mtx3D:Matrix3D = new Matrix3D();
        private var projection:PerspectiveProjection;
        private var projectionMatrix3D:Matrix3D;
        public function etudeNative3D() {
            init();
        }
        private function init():void {
            addChild( new Bitmap( _canvas = new BitmapData ( STAGE_WIDTH, STAGE_HEIGHT, true, 0x00FFFFFF ) ) );
            
            _glow = new BitmapData( STAGE_WIDTH/4, STAGE_HEIGHT/4, false, 0x0 );
            var bm:Bitmap = addChild( new Bitmap( _glow, PixelSnapping.NEVER, true ) ) as Bitmap;
            bm.scaleX = bm.scaleY = 4;
            bm.blendMode = BlendMode.ADD;
            
            _rect = new Rectangle( 0, 0, STAGE_WIDTH, STAGE_HEIGHT );
            _cTra = new ColorTransform( 0.95, 0.95, 0.95, 1.0 );
            
            projection = new PerspectiveProjection();
            projection.fieldOfView = 90;
            projectionMatrix3D = projection.toMatrix3D();
            
            mapList = textToBit();
            for ( var i:uint = 0; i < totalParticle; i++ ) {
                var particle:Particle = new Particle();
                particles.push( particle );
                var tmpPoint:Point = purposeMaker()
                particle.dx = tmpPoint.x;
                particle.dy = tmpPoint.y;
            }
            addEventListener( Event.ENTER_FRAME, onEnterFrameHandler );
        }
        private function textToBit():Array {
            var tmpList:Array = [];
            var accuracy:Number = 2;
            var threshold:uint = 0x00FFFFFF;
            for ( var i:uint = 0; i < 11; i++ ) {
                var txt:TextField = new TextField();
                txt.x = 0;
                txt.y = 0;
                txt.width = 90;
                txt.height = 90;
                txt.type = TextFieldType.DYNAMIC;
                txt.selectable = false;
                var tf:TextFormat = new TextFormat();
                
                tf.font = "Font Bold";
                tf.size = 80;
                tf.align = TextFormatAlign.CENTER;
                txt.textColor = 0xFFFFFF;
                txt.defaultTextFormat = tf;
                if ( i < 10 ) {
                    txt.text = String( i );
                } else {
                    txt.text = ":";
                }
                
                var tw:uint = txt.width / accuracy;
                var th:uint = txt.height / accuracy;
                var mapData:BitmapData = new BitmapData( tw, th, true, 0x00000000 );
                var matrix:Matrix = new Matrix();
                matrix.scale( 1 / accuracy, 1 / accuracy );
                mapData.draw(txt, matrix);

                var byteArray:ByteArray = mapData.getPixels( new Rectangle( 0, 0, mapData.width, mapData.height ) );
                byteArray.position = 0;
                tmpList[ i ] = [];
                for (var n:uint = 0; n < tw * th; n++) {
                    var color:uint = byteArray.readInt();
                    if ( color > threshold ) {
                        var pos:uint = n;
                        var px:Number = ( pos % tw ) * accuracy + txt.x;
                        var py:Number = Math.floor(pos / tw) * accuracy + txt.y;
                        tmpList[ i ].push( { dx:px, dy:py, dz:0 } );
                    }
                }
            }
            return tmpList;
        }
        private function purposeMaker():Point {
            var destination:Point = new Point();
            var totalType:uint = 8;
            var rndtxt:int = int( Math.random() * totalType );
            
            var nDate:Date = new Date();
            var Hour:String = String(nDate.hours + 100);
            Hour = Hour.substring( 1, 3)
            var Minute:String = String(nDate.minutes + 100);
            Minute = Minute.substring( 1, 3)
            var Second:String = String(nDate.seconds + 100);
            Second = Second.substring(1, 3)
            var str:String = Hour + ":" + Minute + ":" + Second;
            
            str = str.substring( rndtxt, rndtxt + 1 );
            
            if( rndtxt == 2 || rndtxt == 5 ) {
                var dispTxt:uint = 10;
            } else {
                dispTxt = int( str );
            }
            var rndpoint:int = int( Math.random() * mapList[ dispTxt ].length );
            destination.x = mapList[ dispTxt ][ rndpoint ].dx + rndtxt * 50 - ( totalType * 50 * 0.5 );
            destination.y = mapList[ dispTxt ][ rndpoint ].dy - 45;
            return destination;
        }
        private function onEnterFrameHandler( eventObject:Event ):void {
            var vertices3D:Vector.<Number> = new Vector.<Number>();
            var projectedVerts:Vector.<Number> = new Vector.<Number>();
            var uvts:Vector.<Number> = new Vector.<Number>();
            var offsetZ:Number = 300;
            
            for ( var i:uint = 0; i < totalParticle; i++ ) {
                particles[ i ].update();
                vertices3D.push( particles[ i ].px, particles[ i ].py, particles[ i ].pz );
            }
            mtx3D.identity();
            mtx3D.appendRotation( -20, Vector3D.Y_AXIS);
            mtx3D.appendRotation( 20, Vector3D.X_AXIS);
            mtx3D.appendTranslation( 0, 0, offsetZ );
            mtx3D.append( projectionMatrix3D );
            bugfix( mtx3D );
            
            Utils3D.projectVectors( mtx3D, vertices3D, projectedVerts, uvts );
            
            var variation:Number = 0.04;
            var ctx:Number =  mouseX / 465;
            var cty:Number = mouseY / 465;
            if ( ctx > 0.95 ) {
                ctx = 0.95;
            } else if ( ctx < 0.05 ) {
                ctx = 0.05;
            }
            if ( cty > 0.95 ) {
                cty = 0.95;
            } else if ( cty < 0.05 ) {
                cty = 0.05;
            }
            if ( ctx > _cTra.redMultiplier ) {
                _cTra.redMultiplier += variation;
            } else {
                _cTra.redMultiplier -= variation;
            }
            if ( cty > _cTra.blueMultiplier ) {
                _cTra.blueMultiplier += variation;
            } else {
                _cTra.blueMultiplier -= variation;
            }
            
            _canvas.lock();
            _canvas.applyFilter( _canvas, _rect, new Point(), new BlurFilter( 1.6, 1.6 ) );
            _canvas.colorTransform( _rect, _cTra );
            var pvLength:uint = projectedVerts.length * 0.5;
            for ( var j:uint = 0; j < pvLength; j++ ) {
                if ( particles[ j ].arrivalFlag ) {
                    particles[ j ].renew();
                    var tmpPoint:Point = purposeMaker();
                    particles[ j ].dx = tmpPoint.x;
                    particles[ j ].dy = tmpPoint.y;
                }
                if( uvts[ j * 3 + 2 ] > 0 ) {
                    _canvas.setPixel32( projectedVerts[ j * 2 ] + STAGE_CENTER_X, projectedVerts[ j * 2 + 1 ] + STAGE_CENTER_Y, 0xFF999999 );
                }
            }
            _canvas.unlock();
            _glow.fillRect( _glow.rect, 0x00000000 );
            _glow.draw( _canvas, new Matrix( 0.25, 0, 0, 0.25 ) );
        }
        private function bugfix( matrix:Matrix3D ):void {
            var m1:Matrix3D = new Matrix3D(Vector.<Number>( [ 0, 0, 0, 0,  0, 0, 0, 0,  0, 0, 0, 0,  0, 0, 1, 0 ] ) );
            var m2:Matrix3D = new Matrix3D(Vector.<Number>( [ 0, 0, 0, 0,  0, 0, 0, 0,  0, 0, 0, 1,  0, 0, 0, 0 ] ) );
            m1.append( m2 );
            if ( m1.rawData[15] == 20 ) {
                var rawData:Vector.<Number> = matrix.rawData;
                rawData[15] /= 20;
                matrix.rawData = rawData;
            }
        }
    }
}
class Particle {
    public var px:Number;
    public var py:Number;
    public var pz:Number;
    public var dx:Number = 0;
    public var dy:Number = 0;
    public var dz:Number = 0;
    public var easingX:Number = Math.random() * 0.08 + 0.16;
    public var easingY:Number = Math.random() * 0.08 + 0.16;
    public var easingZ:Number = Math.random() * 0.08 + 0.16;
    
    private const range:Number = 0.1;
    public var distance:Number;
    public var arrivalFlag:Boolean = false;
    
    public function Particle() {
        renew();
    }
    public function update():void {
        px += ( dx - px ) * easingX;
        py += ( dy - py ) * easingY;
        pz += ( dz - pz ) * easingZ;
        
        distance = Math.sqrt( ( dx - px ) * (dx - px ) + ( dy - py ) * ( dy - py ) + ( dz - pz ) * ( dz - pz ) );
        
        if ( distance < range ) {
            arrivalFlag = true;
        }
    }
    public function renew():void {
        px = Math.random() * 800 - 400;
        py = dy;
        pz = Math.random() * 4000 - 2000;
        
        arrivalFlag = false;
    }
}