asheetofpaper.min.js

var mousePoint=view.center;var colors=['#363636','#707070','#A1A1A1','#E2E2E2','#8ACDA3'];var refSize=new Size(100,100);var path;var path1Count=Math.floor(80*((1280*460)/(view.size.width*view.size.height)));var path2Count=path1Count*4;var ease=0.6;var tracerPoint=new Point(view.size.width/2,view.size.width/2);var tracerDest=new Point(view.size.width/2,view.size.height/2);var tracerSpeed=new Point((tracerDest.x-tracerPoint.x)*ease,(tracerDest.y-tracerPoint.y)*ease);initPath();function onMouseUp(event){}
function initPath(){path=new Path();path.moveTo([0,0]);path.arcTo(new Point(refSize.width/2,refSize.height/2),new Point(0,refSize.height));path.closed=true;path.strokeColor='black';path.strokeColor.alpha=0.018;}
function drawHemiR(point){if(path1Count>0){path1Count--;}else if(path1Count==0){refSize.width=refSize.height*=0.5;path.remove();initPath();path1Count--;}else if(path2Count>0){path2Count--;}else{view.onFrame=null;return;}
var refPoint=new Point(Math.floor(point.x/refSize.width)*refSize.width,Math.floor(point.y/refSize.height)*refSize.height);path.position=refPoint+path.bounds.size/2;rotateAndDraw(refPoint);rotateAndDraw(refPoint);rotateAndDraw(refPoint);rotateAndDraw(refPoint);}
function rotateAndDraw(refPoint){var angle=90*Math.floor(Math.random()*4);path.rotate(angle,refPoint);path.rasterize();path.rotate(-angle,refPoint);}
function drawHemiV(point){if(path1Count>0){path1Count--;}else if(path1Count==0){refSize.width=refSize.height*=0.5;path1Count--;}else if(path2Count>0){path2Count--;}else{view.onFrame=null;return;}
var refPoint=new Point(Math.floor(point.x/refSize.width)*refSize.width,Math.floor(point.y/refSize.height)*refSize.height);placeAndRotate(refPoint);placeAndRotate(refPoint);placeAndRotate(refPoint);placeAndRotate(refPoint);}
function placeAndRotate(refPoint){var path=new Path();path.strokeColor='black';path.strokeColor.alpha=0.02;path.moveTo(refPoint);path.arcTo(new Point(refPoint.x+refSize.width/2,refPoint.y+refSize.height/2),new Point(refPoint.x,refPoint.y+refSize.height));path.closed=true;path.position=refPoint+path.bounds.size/2;var angle=90*Math.floor(Math.random()*4);path.rotate(angle,refPoint);}
function onFrame(event){moveTracerI();drawHemiV(tracerPoint);}
function moveTracerI(){tracerPoint.x+=tracerSpeed.x;tracerPoint.y+=tracerSpeed.y;tracerSpeed.x=(tracerDest.x-tracerPoint.x)*ease;tracerSpeed.y=(tracerDest.y-tracerPoint.y)*ease;var dVect=tracerDest-tracerPoint;if(dVect.length<100){var newPoint=Point.random()*view.size;var diff=tracerPoint-newPoint;tracerDest=newPoint;}}
function moveTracerII(){tracerPoint.x+=tracerSpeed.x;tracerPoint.y+=tracerSpeed.y;tracerSpeed+=(Point.random()-{x:0.5,y:0.5})*10;tracerSpeed*=0.99;if(tracerPoint.x>view.size.width){tracerSpeed.x*=-1;tracerPoint.x=view.size.width;}else if(tracerPoint.x<0){tracerSpeed.x*=-1;tracerPoint.x=0;}else if(tracerPoint.y>view.size.height){tracerSpeed.y*=-1;tracerPoint.y=view.size.height;}else if(tracerPoint.y<0){tracerSpeed.y*=-1;tracerPoint.y=0;}}
function onResize(event){}