var w,h,ratio,i,s,el,g,div,dragQ,game,my={};function quincunxMain(mode){this.version='0.631';w=500;h=730;my.boxW=30;my.boxH=30;my.userBoardSize=6;my.multiClrQ=false;my.borderT=116;FF=false;my.leftProb=0.5;var s='';s+='<div id="main" style="position:relative; width:'+w+'px; min-height:'+h+'px;  margin:auto; display:block; background-color: hsl(240,100%,93%); border-radius: 20px; ">';s+='<div style="position:relative;">';s+='<canvas id="can1" style="position: absolute; width:'+w+'px; height:'+w+'px; left: 0px; top: 0px; border: none;"></canvas>';s+='</div>';s+='<div id="cans" style="display: inline-block; float:left; margin: 0;">';s+='</div>';s+='<div id="play" style="position:absolute; left:10px; top:10px; z-index:1;">';s+='<input type="text" id="count" style="display: inline-block; width: 65px; color: black; text-align:center; padding: 3px; background-color: #eeffee; font: bold 18px Arial; border-radius: 10px; vertical-align: top; margin-top:3px;" value=""/>';s+=getPlayHTML(36);s+='</div>';s+='<div id="buttons" style="position:absolute; right:6px; top:6px; text-align:right; ">';s+='<button id="restart" style=" font: 20px Arial; height:30px; vertical-align:middle; z-index: 10;" class="togglebtn" onclick="restart()" >Restart</button>';s+='<br>';s+='<button id="data" style=" font: 20px Arial; height:30px; vertical-align:middle; z-index: 10;" class="togglebtn" onclick="optPop()" >Data</button>';s+='</div>';s+=optPopHTML();var lblStyle='display: inline-block; font:15px Arial; width: 80px; text-align: right; margin-right:10px;';var txtStyle='display: inline-block; width:100px; font: 18px Arial; color: #6600cc; text-align: left;';s+='<div id="settings" style="position:absolute; left:10px; top:10px;">';s+='<div style="'+lblStyle+'">Size:</div>'
s+='<input type="range" id="r2"  value="5" min="1" max="15" step="1"  style="z-index:2; width:200px; height:10px; border: none; " autocomplete="off" oninput="onSizeChg(0,this.value)" onchange="onSizeChg(1,this.value)" />';s+='<div id="size" style="'+txtStyle+'">0.5</div>';s+='<br>';s+='<div style="'+lblStyle+'">Left/Right:</div>'
s+='<input type="range" id="r3"  value="0.5" min="0" max="1" step=".01"  style="z-index:2; width:200px; height:10px; border: none; " autocomplete="off" oninput="onProbChg(0,this.value)" onchange="onProbChg(1,this.value)" />';s+='<div id="prob" style="'+txtStyle+'">0.5</div>';s+='<br>';s+='<div style="'+lblStyle+'">Speed:</div>'
s+='<input type="range" id="r1"  value="0.4" min="0" max="1" step=".01"  style="z-index:2; width:200px; height:10px; border: none; " autocomplete="off" oninput="onSpeedChg(0,this.value)" onchange="onSpeedChg(1,this.value)" />';s+='<div id="speed" style="'+txtStyle+'">1</div>';s+='</div>';s+='<div id="copyrt" style="position: absolute; left: 10px; bottom: 10px; font: 10px Arial; color: blue; ">&copy; 2017 MathsIsFun.com  v'+this.version+'</div>';s+='</div>';document.write(s);el=document.getElementById('can1');ratio=3;el.width=w*ratio;el.height=h*ratio;el.style.width=w+"px";el.style.height=h+"px";g=el.getContext("2d");g.setTransform(ratio,0,0,ratio,0,0);this.clrs=[["Red",'#FF0000'],["Blue",'#0000FF'],["Black",'#000000'],["Green",'#00cc00'],["Orange",'#FFA500'],["Slate Blue",'#6A5ACD'],["Lime",'#00FF00'],["Spring Green",'#00FF7F'],["Teal",'#008080'],["Gold",'#ffd700'],["Med Purple",'#aa00aa'],["Light Blue",'#ADD8E6'],["Navy",'#000080'],["Purple",'#800080'],["Dark SeaGreen",'#8FBC8F']];this.clrNo=0;my.frameN=200;tiles=[];onSizeChg(1,6);onSpeedChg(1,0.4);onProbChg(1,0.5);restart();}
function restart(){g.clearRect(0,0,el.width,el.height);my.frameNo=0;for(var i=0;i<tiles.length;i++){t=tiles[i];t.stop();}
tiles=[];var div=document.getElementById('cans');while(div.hasChildNodes()){div.removeChild(div.lastChild);}
div.innerHTML='';my.datas=[];my.boardSize=my.userBoardSize;my.boardHalf=my.boardSize/2;my.maxCount=10;drawBoard();drawGraph();reset();if(!my.playQ)togglePlay();}
function reset(){my.count=0;for(var i=0;i<my.tots.length;i++){var t=my.tots[i];t.count=0;}
var div=document.getElementById('count');div.value=my.count;}
function onSpeedChg(n,v){v=Number(v)*1.3+1;v=Number(Math.pow(10,v).toPrecision(2));my.frameN=parseInt(3000/v);v=parseInt(v);document.getElementById('speed').innerHTML=v;}
function onSizeChg(n,v){v=Number(v);my.userBoardSize=v;document.getElementById('size').innerHTML=v;}
function onProbChg(n,v){v=Number(1-v).toFixed(2);my.leftProb=v;var pct=parseInt(v*100);var s=pct+'%'+' / '+(100-pct)+'%'
document.getElementById('prob').innerHTML=s;}
function nextDrop(){my.frameNo=2;animate();}
function animate(){if(my.playQ){if(my.frameNo==2){var clr='#00a';if(my.multiClrQ){this.clrNo++;this.clrNo=this.clrNo%this.clrs.length;clr=this.clrs[this.clrNo][1];}
my.count++;var div=document.getElementById('count');div.value=my.count;addTile(0,0,clr);}
my.frameNo=(++my.frameNo)%my.frameN;requestAnimationFrame(animate);}}
function drawBoard(){my.boardHalf=Math.floor(my.boardSize/2);var bd={x:boxLeft(0,my.boardSize+1),y:my.borderT,wd:my.boxW*(my.boardSize+2),ht:my.boxH*my.boardSize+126}
var grd=g.createLinearGradient(bd.x,bd.y,bd.x+bd.wd,bd.y);grd.addColorStop(0,"#cdf");grd.addColorStop(0.1,"#def");grd.addColorStop(1,"#cdf");g.strokeStyle='#888';g.fillStyle=grd;g.beginPath();g.rect(bd.x,bd.y,bd.wd,bd.ht);g.fill();g.stroke();for(var row=0;row<my.boardSize;row++){for(var col=0;col<row+1;col++){var posx=boxLeft(col,row);var posy=boxTop(row);for(var i=0;i<8;i++){g.beginPath();g.fillStyle='rgba(0, 0, 0, 0.03)';g.arc(posx+45/2,posy+30+1.5,2+i/2,0,2*Math.PI);g.fill();}
g.beginPath();g.fillStyle='#f88';g.strokeStyle='#000';g.arc(posx+45/2-1.5,posy+30,3,0,2*Math.PI);g.stroke();g.fill();}}
var div=document.getElementById('play');div.style.left=parseInt(boxLeft(0,0)-15)+"px";div.style.top=parseInt(boxTop(0)-38)+"px";}
function drawGraph(){my.tots=[];for(var col=0;col<=my.boardSize;col++){posx=boxLeft(col,my.boardSize)+6;posy=boxTop(my.boardSize);var tot=new Tot(my.boxW,my.boxH,col);tot.setxy(posx,posy+6);my.tots.push(tot);}}
function boxTop(rowNo){return(my.borderT+Number(my.boxH*rowNo));}
function boxLeft(colNo,rowNo){return(w/2+Number(my.boxW*(-0.5-rowNo/2+colNo)));}
function getPlayHTML(w){var s='';s+='<style type="text/css">';s+='.btn {display: inline-block; position: relative; width:'+w+'px; height:'+w+'px; margin-right:'+w*0.2+'px; padding: .6em; border: 0 solid rgba(208,208,248,1); border-radius: 10em; background: linear-gradient(#fff, #ccf), #c9c5c9; box-shadow: 0 3 4 rgba(0,0,0,.4); }';s+='.btn:hover {background: linear-gradient(#f5f5f5, #b9b9b9), #c9c5c9; }';s+='.btn:before, button:after {content: " "; position: absolute; }';s+='.btn:active {top:'+w*0.05+'px; box-shadow: 0 '+w*0.02+'px '+w*0.03+'px rgba(0,0,0,.4); }';s+='.play:before {  left: '+w*0.36+'px; top: '+w*0.22+'px; width: 0; height: 0; border: '+w*0.3+'px solid transparent; border-left-width: '+w*0.4+'px; border-left-color: blue;  }';s+='.play:hover:before {border-left-color: yellow; }';s+='.pause:before, .pause:after {display: block; left: '+w*0.29+'px; top: '+w*0.28+'px; width: '+w*0.19+'px; height: '+w*0.47+'px; background-color: blue; }';s+='.pause:after {left: '+w*0.54+'px; }';s+='.pause:hover:before, .pause:hover:after {background-color: yellow; }';s+='</style>';s+='<button id="playBtn" class="btn play" onclick="togglePlay()" ></button>';return s;}
function optPopHTML(){var s='';s+='<div id="optpop" style="position:absolute; left:-500px; top:0px; width:360px; padding: 5px; border-radius: 9px; background-color: #bcd; box-shadow: 10px 10px 5px 0px rgba(40,40,40,0.75); transition: all linear 0.3s; opacity:0; text-align: center; ">';s+='<div id="optInside" style="margin: 5px auto 5px auto;">';s+='List:</br>';s+='<textarea id="optList" style="width:100%; height:200px"></textarea>';s+='<br>Summary:</br>';s+='<textarea id="optSums" style="width:100%; height:50px"></textarea>';s+='</div>';s+='<div style="float:right; margin: 0 0 5px 10px;">';s+='<button onclick="optNo()" style="z-index:2; font: 22px Arial;" class="togglebtn" >&#x2718;</button>';s+='</div>';s+='</div>';return s;}
function optPop(){var pop=document.getElementById('optpop');pop.style.transitionDuration="0.3s";pop.style.opacity=1;pop.style.zIndex=12;pop.style.left=(w-400)/2+'px';var div=document.getElementById('optList');div.value=my.datas.join(',');var sums=[];for(var i=0;i<my.tots.length;i++){var t=my.tots[i];sums.push(t.count);}
var div=document.getElementById('optSums');var s='Size: '+my.boardSize+', Left Probability: '+my.leftProb;s+='\n';s+='Totals: '+sums.join(',');div.value=s;}
function optYes(){var pop=document.getElementById('optpop');pop.style.opacity=0;pop.style.zIndex=1;pop.style.left='-999px';newGame();}
function optNo(){var pop=document.getElementById('optpop');pop.style.opacity=0;pop.style.zIndex=1;pop.style.left='-999px';}
function togglePlay(){if(my.resetQ){reset();my.resetQ=false;}
if(this.frame>=this.frameMax){this.frame=0;}
var btn='playBtn';if(my.playQ){my.playQ=false;document.getElementById(btn).classList.add("play");document.getElementById(btn).classList.remove("pause");}else{my.playQ=true;nextDrop();document.getElementById(btn).classList.add("pause");document.getElementById(btn).classList.remove("play");}
if(my.colNo<my.colMax)my.cols[my.colNo].anim();}
function addTile(row,col,clr){var tile=new Tile(row,col);tiles.push(tile);var posx=boxLeft(col,row);var posy=boxTop(row);tile.setxy(posx,posy);tile.anim(clr);}
function delTile(tile){tile.stop();document.getElementById('cans').removeChild(tile.canvas);for(var i=0;i<tiles.length;i++){if(tiles[i]===tile){tiles.splice(i,1);}}}
function Tile(row,col){this.row=row;this.col=col;this.ball={size:8,color:'white',lightColor:'yellow',darkColor:'darkblue'}
this.wd=45;this.ht=58;this.midX=this.wd/2;this.midY=20;this.canvas=document.createElement('canvas');this.canvas.style.position="absolute";document.getElementById('cans').appendChild(this.canvas);this.ratio=2;this.canvas.width=this.wd*this.ratio;this.canvas.height=this.ht*this.ratio;this.canvas.style.width=this.wd+"px";this.canvas.style.height=this.ht+"px";this.g=this.canvas.getContext("2d");this.g.setTransform(this.ratio,0,0,this.ratio,0,0);this.frame=0;this.frameN=my.frameN*0.9;this.playQ=true;this.redraw();}
Tile.prototype.stop=function(){this.playQ=false;}
Tile.prototype.setxy=function(lt,tp){this.canvas.style.left=lt+'px';this.canvas.style.top=tp+'px';};Tile.prototype.redraw=function(){this.g.clearRect(0,0,this.wd,this.ht);if(this.frame>0&&this.frame<=this.frameN){this.g.ball(this.ball,this.midX+this.x,this.midY+this.y+2);}};Tile.prototype.anim=function(clr){this.clr=clr;this.ball.darkColor=clr;this.frame=0;this.hasBall=true;this.frameN=parseInt(my.frameN*0.99);this.x=0;this.y=0;if(Math.random()<my.leftProb){this.dir=-1;}else{this.dir=1;}
this.vx=this.dir*my.boxW/this.frameN/2;this.vy=-60/this.frameN;this.dvy=-3*this.vy/this.frameN;this.doFrame();};Tile.prototype.doFrame=function(){this.redraw();this.frame++;this.x+=this.vx;this.vy+=this.dvy;this.y+=this.vy;if(this.frame==this.frameN-1){this.bouncenow();}
if(this.frame<=this.frameN){if(this.playQ)requestAnimationFrame(this.doFrame.bind(this));}else{delTile(this)}};Tile.prototype.bouncenow=function(){var nextRow=this.row+1;var nextCol=(this.dir<0)?this.col:this.col+1;if(nextRow<my.boardSize){addTile(nextRow,nextCol,this.clr)}else{my.tots[nextCol].addOne();redrawTots();my.datas.push(nextCol);}}
function redrawTots(dx,dy){for(var i=0;i<my.tots.length;i++){var t=my.tots[i];t.redraw();}}
function Tot(dx,dy,id){this.id=id;this.barHt=100;this.wd=my.boxW;this.ht=this.barHt+20;var canvas=document.createElement('canvas');canvas.style.position="absolute";document.getElementById('cans').appendChild(canvas);var ratio=2;canvas.width=this.wd*ratio;canvas.height=(this.ht+30)*ratio;canvas.style.width=this.wd+"px";canvas.style.height=(this.ht+30)+"px";var g=canvas.getContext("2d");g.setTransform(ratio,0,0,ratio,0,0);this.canvas=canvas;this.g=g;this.count=0;}
Tot.prototype.stop=function(){console.log("Tot stop");}
Tot.prototype.setxy=function(lt,tp){this.canvas.style.left=lt+'px';this.canvas.style.top=tp+'px';};Tot.prototype.addOne=function(){this.count++;if(this.count>my.maxCount)my.maxCount=this.count;};Tot.prototype.redraw=function(){this.g.clearRect(0,0,this.wd,this.ht);var ht=this.barHt*(this.count/my.maxCount);this.g.strokeStyle='black';this.g.fillStyle='orange';this.g.beginPath();this.g.rect(0,this.ht-ht,this.wd,ht);this.g.fill();this.g.stroke();this.g.fillStyle='black';this.g.beginPath();this.g.textAlign='center';this.g.font='15px Arial';this.g.fillText(this.count.toString(),this.wd/2,this.ht-ht-3);this.g.fill();this.g.fillStyle='grey';this.g.font='13px Arial';this.g.textAlign='center';this.g.beginPath();this.g.fillText(this.id,this.wd/2,this.ht+14);this.g.fill();};CanvasRenderingContext2D.prototype.ball=function(ball,x,y){var size=ball.size;this.beginPath();this.fillStyle=ball.color;this.arc(x,y,size,0,Math.PI*2,true);var gradient=this.createRadialGradient(x-size/2,y-size/2,0,x,y,size);gradient.addColorStop(0,ball.color);gradient.addColorStop(1,ball.darkColor);this.fillStyle=gradient;this.fill();this.closePath();this.beginPath();this.arc(x,y,size*0.85,(Math.PI/180)*270,(Math.PI/180)*200,true);gradient=this.createRadialGradient(x-size*.5,y-size*.5,0,x,y,size);gradient.addColorStop(0,ball.lightColor);gradient.addColorStop(0.5,'transparent');this.fillStyle=gradient;this.fill();}