Loose Glow Line（Math Graphics Example）
Forkしていただいてオモシロイ動きになっていたので、さらにForkしてみました。
/**
* Copyright mousepancyo ( http://wonderfl.net/user/mousepancyo )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/5nJE
*/
// forked from undo's forked from: 線がうまく描けません（Math Graphics Example）
// forked from mousepancyo's 線がうまく描けません（Math Graphics Example）
package {
import flash.display.Sprite;
import flash.display.Shape;
import flash.geom.Point;
import flash.events.Event;
import flash.display.Sprite;
import flash.events.MouseEvent;
import flash.display.BitmapData;
import flash.display.Bitmap;
import flash.filters.BlurFilter;
import flash.geom.Rectangle;
import flash.geom.ColorTransform;
import frocessing.color.ColorHSV;
[SWF(frameRate=60)]
public class Main extends Sprite{
private var rotObj:Sprite = new RotObj();
private var _r:Number;
private var _rad:Number;
private var _radius:Number;
private var _centerX:Number = stage.stageWidth / 2;
private var _centerY:Number = stage.stageHeight / 2;
private var _p:Point = new Point(_centerX, _centerY);
private var _isMouseDown:Boolean;
private var _circleBmd:BitmapData;
private var _canvas:BitmapData;
private var _glowBmd:BitmapData;
private var _bm:Bitmap;
private var _glowBm:Bitmap;
private var _blure:BlurFilter = new BlurFilter(16, 16, 3);
private var _ct:ColorTransform;
private var _hsv:ColorHSV;
public function Main() {
var sp:Shape = new Shape();
sp.graphics.beginFill(0xFFFFFF);
sp.graphics.drawCircle(30, 30, 10);
sp.graphics.endFill()
//
_circleBmd = new BitmapData(50, 50, true, 0)
_circleBmd.draw(sp);
//
_canvas = new BitmapData(500, 500, false, 0)
_bm= new Bitmap( _canvas );
_bm.x = _bm.y = -25;
_bm.filters = [_blure];
addChild(_bm);
//
_glowBmd = _canvas.clone();
_glowBm = new Bitmap(_glowBmd);
_glowBm.filters = [_blure];
_glowBm.blendMode = "add";
_glowBm.x = _glowBm.y = -25;
addChild(_glowBm);
//
_ct= new ColorTransform();
_hsv = new ColorHSV(0, .9, .99);
//
addChild(rotObj);
rotObj.x = _centerX;
rotObj.y = _centerY;
stage.addEventListener(MouseEvent.MOUSE_DOWN, onDown);
stage.addEventListener(MouseEvent.MOUSE_UP, onUp);
graphics.lineStyle(1, 0);
Wonderfl.capture_delay(10);
}
private function update(e:Event):void{
var mPoint:Point = new Point(mouseX, mouseY);
var cPoint:Point = new Point(_centerX, _centerY);
rotObj.rotation += (mPoint.y - cPoint.y) * 0.05;
_r = rotObj.rotation;
_rad = _r * Math.PI / 180;
if(_isMouseDown){
_p.x = _centerX + Math.cos(_rad) * (mPoint.x - cPoint.x);
_p.y = _centerY + Math.sin(_rad) * (mPoint.x - cPoint.x);
_canvas.copyPixels(_circleBmd, _circleBmd.rect, _p);
_canvas.colorTransform(_canvas.rect, _ct);
_glowBmd.copyPixels(_canvas, _canvas.rect, new Point());
//
_ct.redMultiplier = (_hsv.value >> 16 & 0xff) / 255;
_ct.greenMultiplier = (_hsv.value >> 8 & 0xff) / 255;
_ct.blueMultiplier = (_hsv.value & 0xff) / 255;
_hsv.h += 1;
}
}
private function onDown(e:MouseEvent):void{
_isMouseDown = true;
var rad:Number = Math.atan2(mouseY - _centerY, mouseX - _centerX);
_p.x = _centerX + Math.cos(rad) * (mouseX - _centerX);
_p.y = _centerY + Math.sin(rad) * (mouseX - _centerX);
rotObj.rotation = rad * 180 / Math.PI;
//
graphics.moveTo(_p.x, _p.y);
addEventListener(Event.ENTER_FRAME, update);
}
private function onUp(e:MouseEvent):void{
_isMouseDown = false;
graphics.clear();
graphics.lineStyle(1, 0);
graphics.moveTo(_p.x, _p.y);
removeEventListener(Event.ENTER_FRAME, update);
rotObj.rotation = 0;
}
}
}
import flash.display.Sprite;
class RotObj extends Sprite{
public function RotObj() {
this.graphics.lineStyle(1, 0x990000);
graphics.moveTo(0, 0);
graphics.lineTo(-10, 0);
graphics.moveTo(0, 0);
graphics.lineTo(0, -10);
graphics.moveTo(0, 0);
graphics.lineTo(10, 0);
graphics.moveTo(0, 0);
graphics.lineTo(0, 10);
}
}