forked from: forked from: Dumping Graphics
変更点は色が少しずつ淡くなるだけ。
Dumping Graphics
マウスクリックすると拡大するよ
@author yasu
/**
* Copyright yotsu42keisuke ( http://wonderfl.net/user/yotsu42keisuke )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/bRNL
*/
// forked from ratch's forked from: Dumping Graphics
// forked from clockmaker's Dumping Graphics
/**
* 変更点は色が少しずつ淡くなるだけ。
**/
package
{
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.display.Sprite;
import flash.events.Event;
import flash.events.MouseEvent;
import flash.events.TimerEvent;
import flash.geom.Matrix;
import flash.geom.Point;
import flash.utils.Timer;
import frocessing.color.ColorHSV;
import flash.geom.ColorTransform;
[SWF(width=465, height=465, frameRate=60)]
/**
* Dumping Graphics
* マウスクリックすると拡大するよ
* @author yasu
*/
public class DumpingGraphics extends Sprite
{
private static const MAX:int = 10;
private static const STAGE_W:int = 465;
private static const STAGE_H:int = 465;
public function DumpingGraphics()
{
addChild(bmp = new Bitmap(bmd = new BitmapData(STAGE_W * 2, STAGE_H * 2, true, 0xFF000000)));
bmp.scaleX = bmp.scaleY = 1 / 2;
for (var i:int = 0; i < MAX; i++)
{
addChild(canvas[ i ] = new Sprite);
colors[ i ] = [];
var j:int = 10;
while (j--)
{
var color:ColorHSV = new ColorHSV(Math.random() * 30 + i * 15 + 180, Math.random(), 1);
colors[ i ].push(color.value);
}
target[ i ] = new Point(STAGE_W * Math.random(), STAGE_H * Math.random());
stack[ i ] = [];
vx[ i ] = 0;
vy[ i ] = 0;
nowX[ i ] = STAGE_W / 2;
nowY[ i ] = STAGE_H / 2;
timer[ i ] = new Timer(30 * i + 50);
timer[ i ].addEventListener(TimerEvent.TIMER, tick);
timer[ i ].start();
}
captureMatrix.scale(2, 2);
addEventListener(Event.ENTER_FRAME, loop);
stage.addEventListener(MouseEvent.MOUSE_DOWN, _onDown);
stage.addEventListener(MouseEvent.MOUSE_UP, _onUp);
}
private var ac:Number = 0.02;
private var bmd:BitmapData;
private var bmp:Bitmap;
private var canvas:Vector.<Sprite> = new Vector.<Sprite>(MAX, true);
private var captureMatrix:Matrix = new Matrix();
private var colors:Vector.<Array> = new Vector.<Array>(MAX, true);
private var de:Number = 0.95;
private var nowX:Vector.<Number> = new Vector.<Number>(MAX, true);
private var nowY:Vector.<Number> = new Vector.<Number>(MAX, true);
private var oldP:Point = new Point(STAGE_W / 2, STAGE_H / 2);
private var speed:Number = 1;
private var stack:Vector.<Array> = new Vector.<Array>(MAX, true);
private var target:Vector.<Point> = new Vector.<Point>(MAX, true);
private var timer:Vector.<Timer> = new Vector.<Timer>(MAX, true);
private var vx:Vector.<Number> = new Vector.<Number>(MAX, true);
private var vy:Vector.<Number> = new Vector.<Number>(MAX, true);
private var zoom:Number = 1;
//private var bmpClrTransform:ColorTransform = new ColorTransform( 1, 1, 1, 1, -1, -1, -1 );
private var bmpClrTransform:ColorTransform = new ColorTransform( 0.9999, 0.9999, 0.9999 );
private function _onDown(e:MouseEvent):void
{
zoom = 2;
}
private function _onUp(e:MouseEvent):void
{
zoom = 1;
}
private function loop(e:Event):void
{
bmd.lock();
for (var i:int = 0; i < MAX; i++)
{
var oldX:Number = nowX[ i ];
var oldY:Number = nowY[ i ];
//加速度運動
vx[ i ] += (target[ i ].x - nowX[ i ]) * ac;
vy[ i ] += (target[ i ].y - nowY[ i ]) * ac;
nowX[ i ] += vx[ i ];
nowY[ i ] += vy[ i ];
//減衰処理
vx[ i ] *= de;
vy[ i ] *= de;
stack[ i ].push([ nowX[ i ], nowY[ i ], oldX, oldY ]);
if (stack[ i ].length > 10)
stack[ i ].shift();
canvas[ i ].graphics.clear();
for (var j:int = 0; j < stack[ i ].length; j++)
{
var o:Array = stack[ i ][ j ];
var rand:Number = Math.random();
canvas[ i ].graphics.beginFill(colors[ i ][(colors.length * Math.random()) >> 0 ], 0.5 * rand);
var r:Number = Math.sqrt((o[ 0 ] - o[ 2 ]) * (o[ 0 ] - o[ 2 ]) + (o[ 1 ] - o[ 3 ]) * (o[ 1 ] - o[ 3 ]))
r *= 0.75;
r *= rand * rand;
canvas[ i ].graphics.drawCircle(o[ 0 ], o[ 1 ], r);
}
target[ i ].x += (STAGE_W / 2 - target[ i ].x) * ac;
target[ i ].y += (STAGE_H / 2 - target[ i ].y) * ac;
bmd.draw(canvas[ i ], captureMatrix);
}
bmd.colorTransform( bmd.rect, bmpClrTransform );
bmd.unlock();
oldP.x += (target[ 0 ].x - oldP.x) * 0.05;
oldP.y += (target[ 0 ].y - oldP.y) * 0.05;
speed += (zoom - speed) * 0.1;
var mt:Matrix = new Matrix();
mt.translate(-oldP.x, -oldP.y);
mt.scale(speed, speed);
mt.translate(oldP.x, oldP.y);
this.transform.matrix = mt;
}
private function tick(e:TimerEvent):void
{
for (var i:int = 0; i < MAX; i++)
{
if (timer[ i ] == e.currentTarget)
break;
}
target[ i ].x = mouseX;
target[ i ].y = mouseY;
}
}
}