Tunnel, forked from: 虹色幾何学模様
blog : http://tirirenge.undo.jp/?p=1726
*
* こちらを参考にして虹色のグラデーションできました！thx！
* http://wonderfl.kayac.com/code/2039da32bb0346bf7bd7723e75492995841be82a
// forked from ahchang's 虹色幾何学模様
// forked from ahchang's forked from: forked from: forked from: とりあえずCircleを描いてみた
// forked from ahchang's forked from: forked from: とりあえずCircleを描いてみた
// forked from soundkitchen's forked from: とりあえずCircleを描いてみた
// forked from ahchang's とりあえずCircleを描いてみた
/**
* blog : http://tirirenge.undo.jp/?p=1726
*
* こちらを参考にして虹色のグラデーションできました！thx！
* http://wonderfl.kayac.com/code/2039da32bb0346bf7bd7723e75492995841be82a
**/
package
{
import flash.display.Sprite;
import frocessing.color.ColorHSV;
import flash.display.Graphics;
import flash.display.Shape;
import flash.events.Event;
[SWF(width=465, height=465, frameRate=60, backgroundColor=0x000000)]
public class CircleBasic extends Sprite
{
public static const NUM_CIRCLES:uint = 150;
public static const SPIN_FACTOR = Math.PI;
private var radius:Number;
private var posX:Number;
private var posY:Number;
private var nAngle:Number;
private var cAngle:Number;
private var cx:Number, cy:Number;
private var hsv:ColorHSV;
private var frame:int;
public function CircleBasic()
{
init();
}
private function init():void {
frame = 0;
this.radius = 0;
posX = stage.stageWidth /2;
posY = stage.stageHeight /2;
this.x = posX;
this.y = posY;
nAngle = Math.PI * 2 / (NUM_CIRCLES*SPIN_FACTOR);
cAngle = 0;
render(0);
addEventListener(Event.ENTER_FRAME, step);
}
private function render(fn:int):void
{
rendering = true;
graphics.clear();
for (var i:uint=0; i<(NUM_CIRCLES); i++)
{
radius = (Math.cos(frame)*3500/i);
cx = Math.cos(cAngle) * radius/2;
cy = Math.sin(cAngle) * radius/2;
hsv = new ColorHSV(0, 1, 1, 1);
hsv.h = cAngle / Math.PI * 180;
hsv.v = i/NUM_CIRCLES;
hsv.s = (frame%NUM_CIRCLES)/NUM_CIRCLES;
cAngle += nAngle+frame;//+i/SPIN_FACTOR;
graphics.drawCircle(cx, cy, radius);
graphics.lineStyle(1, hsv.value, hsv.a);
}
}
private function step(event:Event):void {
render(frame++);
}
}
}