.# adapté de http://zoneflash.net vincent crublé
.flash bbox=400x450 filename=laser.swf fps=12 background=#556677
.action:  
   var r=_root ;
   with ( r ) {
    _focusrect = false;
//    fscommand('allowscale',false);
//    fscommand('fullscreen',false);
    var n=30,largeur=400,hauteur=400,marge=50,rayon=10;
    var xmin=marge + rayon, ymin=marge+rayon,
    xmax=largeur-marge-rayon,
    ymax=hauteur-marge-rayon,
    largeur2=largeur-2 * marge,
    hauteur2=hauteur-2 * marge,
    tolerance=100,    coefficient=0.1, max=0;
    var bmp=new BitmapData(largeur2, hauteur2,true,0);
    createEmptyMovieClip('holder',0);
    holder._x=marge;
    holder._y=marge;
    holder.attachBitmap(bmp, 0);
    filtre =new BlurFilter(10,10,1);
    matrice=new Matrix();
    matrice.translate(-marge, -marge);
    rectangle=new Rectangle(0,0,largeur2,hauteur2);
    point  =new Point(0,0);
    tirage=function (vmin, vmax) {
	return vmin + (vmax - vmin) * Math.random();
    };
    placerLesPointsSurUnCercle=function () {
      var v2=0;
      while (v2 < n - 1) {
	var v3=this['dot' + v2];
	var v4=v2 * 2 * Math.PI / (n - 1);
	v3._x=200 + 130 * Math.cos(v4);
	v3._y=200 + 130 * Math.sin(v4);
	++v2;
      }
      this['dot'+(n-1)]._x=200;
      this['dot'+(n-1)]._y=200;
    };
    var cercle_btn=new button;
    cercle_btn.border=true;
    var hasard_btn=createEmptyMovieClip('hasard_btn',1);
    cercle_btn.onPress=function () {
      r.placerLesPointsSurUnCercle();
      max=0;
    };
    placerLesPointsAuHasard=function () {
      var v2=0;
      while (v2 < n) {
	var v3=this['dot' + v2];
	v3._x=r.tirage(xmin, xmax);
	v3._y=r.tirage(ymin, ymax);
	max=0;
	++v2;
      }
    };
    hasard_btn.onPress=function () {
      r.placerLesPointsAuHasard();
    };
    var i=0;
    while (i < n) {
      var dot=createEmptyMovieClip('dot' + i, i + 1);
      dot.lineStyle(5, '0xFFFFFF', 100);
      dot.moveTo(0, 0);
      dot.lineTo(0.3, 0);
      dot._width=5;
      dot._height=5;
      dot._x=tirage(xmin, xmax);
      dot._y=tirage(ymin, ymax);
      ++i;
    }
    var texte=createTextField(1,1,10,300,150,30);
    var mydot=createEmptyMovieClip('mydot', n + 2);
    mydot.lineStyle(3, '0xFF0000', 100);
    mydot.moveTo(0, 0);
    mydot.lineTo(0.3, 0);
    mydot._width=6;
    mydot._height=6;
    var lignes=createEmptyMovieClip('lignes', n + 1);

    onEnterFrame=function () {
      var v15=0;
      var v16=r._ymouse;
      if (v16 > marge + hauteur2)	 v16=200;
      var v18=r._xmouse - mydot._x;
      var v17=v16 - mydot._y;
      mydot._x += coefficient * v18;
      mydot._y += coefficient * v17;
      lignes.clear();
      lignes.lineStyle(5,'0x00FFFF',50);
      var v10=0;
      while (v10 < n) {
	var v6=v10 + 1;
	while (v6 < n) {
	  var v2=this['dot'+v10];
	  var v3=this['dot'+v6];
	  var v5=v3._x - v2._x;
	  var v4=v3._y - v2._y;
	  var v8=mydot._x - v2._x;
	  var v7=mydot._y - v2._y;
	  var v14=Math.abs(v5 * v7 - v4 * v8) <= tolerance;
	  if (v14) {
	    var v12=v5 * v5 + v4 * v4;
	    var v11=v5 * v8 + v4 * v7;
	    var v9=v11 / v12;
	    var v13=v9 >= 0 && v9 <= 1;
	    if (v13) {
	      ++v15;
	      lignes.moveTo(v2._x, v2._y);
	      lignes.lineTo(v3._x, v3._y);
	    }
	  }
	  ++v6;
	}
	++v10;
      }
      if (v15 > max) max=v15;     
      bmp.draw(lignes, r.matrice);
      bmp.applyFilter(bmp, r.rectangle,r.point,r.filtre);
      texte.text=v15+'/'+max;
    };
   }
.end
.end