var chainrxn=false;Ball=new Class({number:0,xposition:0,yposition:0,downspeed:0,rightspeed:0,color:"#fff",radius:0,expanding:0,sizeChangeCount:0,disabled:false,expanded:false,chainlevel:0,isBonus:false,isDoNotExplode:false,bonus:0,expandedLifeLength:0,initialize:function(gameLevel,number,xposition,yposition,bonus){this.number=number;this.gameLevel=gameLevel;this.radius=this.gameLevel.ballSize;this.expandedLifeLength=Math.random()*(this.gameLevel.maxExpandedLifeLength-this.gameLevel.minExpandedLifeLength)+this.gameLevel.minExpandedLifeLength;if(xposition==null){this.xposition=(this.gameLevel.xmax-2*this.gameLevel.ballSize)*Math.random()+this.gameLevel.ballSize;this.yposition=(this.gameLevel.ymax-2*this.gameLevel.ballSize)*Math.random()+this.gameLevel.ballSize;var direction=Math.random()*360;var ballSpeed=Math.random()*(this.gameLevel.maxBallSpeed-this.gameLevel.minBallSpeed)+this.gameLevel.minBallSpeed;this.downspeed=Math.cos(direction)*ballSpeed;this.rightspeed=Math.sin(direction)*ballSpeed;if(bonus==null){this.color="rgb("+Math.round(255*Math.random())+", "+Math.round(255*Math.random())+", "+Math.round(255*Math.random())+")";}else{if(bonus==-1){this.isDoNotExplode=true;this.color="rgb(0,0,0)";this.bonus=this.gameLevel.badBonusStart;}else{this.isBonus=true;this.color="rgb(255,255,255)";this.bonus=this.gameLevel.goodBonusStart;}}}else{this.xposition=xposition;this.yposition=yposition;this.color="rgb(150,150,150)";this.startExpansion();}
this.gameLevel.movingBalls.push(this);this.draw();},move:function(){this.xposition+=this.rightspeed;this.yposition+=this.downspeed;this.draw();var notHit=true;this.gameLevel.expandedBalls.each(function(expandedBall){if(notHit&&this.gameLevel.movingBalls[expandedBall].expanded==true&&Math.sqrt(Math.pow(this.gameLevel.movingBalls[expandedBall].xposition-this.xposition,2)+Math.pow(this.gameLevel.movingBalls[expandedBall].yposition-this.yposition,2))<=this.radius+this.gameLevel.movingBalls[expandedBall].radius){this.chainlevel=this.gameLevel.movingBalls[expandedBall].chainlevel+1;this.startExpansion();if(this.gameLevel.totalBallsExpanded==this.gameLevel.numBalls){this.gameLevel.doClearFieldBonus();}
notHit=false;}}.bind(this))
if(notHit){if(this.xposition<=this.gameLevel.ballSize||this.xposition>=this.gameLevel.xmax-this.gameLevel.ballSize){this.rightspeed=-1*this.rightspeed;}
if(this.yposition<=this.gameLevel.ballSize||this.yposition>=this.gameLevel.ymax-this.gameLevel.ballSize){this.downspeed=-1*this.downspeed;}}
if(this.isBonus&&this.gameLevel.bonusCounter==0){this.bonus=this.bonus*this.gameLevel.bonusFactor;}else if(this.isDoNotExplode&&this.gameLevel.doNotExplodeCounter==0&&this.bonus<=this.gameLevel.maxDoNotExplodePoints){this.bonus+=this.gameLevel.doNotExplodeIncrement;}},startExpansion:function(){this.expanded=true;this.gameLevel.expandedBalls.push(this.number);this.gameLevel.totalBallsExpanded++;if(this.isBonus||this.isDoNotExplode){var newPoints=this.bonus;}else{var newPoints=100*Math.pow(this.chainlevel,3);}
this.gameLevel.score+=newPoints;this.expandedBallSize=Math.random()*(this.gameLevel.maxExpandedBallSize-this.gameLevel.minExpandedBallSize)+this.gameLevel.minExpandedBallSize;this.gameLevel.chainrxn.ballsExpandedEl.set("text",this.gameLevel.totalBallsExpanded+" balls expanded");this.gameLevel.chainrxn.levelScoreEl.set("text",this.gameLevel.score+" level points");this.gameLevel.chainrxn.totalScoreEl.set("text",this.gameLevel.score+this.gameLevel.chainrxn.score+" total points");this.downspeed=0;this.rightspeed=0;this.expanding=1;if(this.gameLevel.totalBallsExpanded>=this.gameLevel.ballWinCount&&document.body.getStyle("background")!="#333"){this.gameLevel.showWinBG();}
(function(){this.expanding=-1;this.sizeChangeCount=this.gameLevel.shrinkingIntervals;}).delay(this.expandedLifeLength,this);if(this.number==this.gameLevel.numBalls){return;}
var coordinates=this.gameLevel.chainrxn.ballField.getCoordinates();if(newPoints>0){newPoints="+"+newPoints;}
var pointBox=new Element("div",{"text":newPoints}).inject(document.body);pointBox.addClass("points");pointBox.setStyles({"position":"absolute","top":(this.yposition+coordinates.top-this.gameLevel.pointPopupHeight/2),"left":(this.xposition+coordinates.left-this.gameLevel.pointPopupWidth/2)});(function(){pointBox.destroy();}).delay(this.expandedLifeLength,this);},expand:function(){this.radius=Math.round(this.sizeChangeCount*(this.expandedBallSize-this.gameLevel.ballSize)/this.gameLevel.expandingIntervals+this.gameLevel.ballSize);this.draw();this.sizeChangeCount++;if(this.gameLevel.expandingIntervals<this.sizeChangeCount){this.sizeChangeCount=0;this.expanding=0;}},shrink:function(){this.radius=Math.round(this.sizeChangeCount*(this.expandedBallSize)/this.gameLevel.shrinkingIntervals);this.draw();if(this.sizeChangeCount==0){this.expanded=false;this.expanding=0;this.gameLevel.expandedBalls.erase(this.number);this.disabled=true;}
this.sizeChangeCount--;},maintain:function(){if(this.expanding==1){this.expand();}else if(this.expanding==-1){this.shrink();}else if(this.expanded==true){this.draw();}else if(this.disabled==false){this.move();}},draw:function(){this.gameLevel.canvas.beginPath();this.gameLevel.canvas.fillStyle=this.color;this.gameLevel.canvas.moveTo(this.xposition,this.yposition);this.gameLevel.canvas.arc(this.xposition,this.yposition,this.radius,0,Math.PI*2,true);this.gameLevel.canvas.closePath();this.gameLevel.canvas.fill();}})
var StarterBall=new Class({element:false,xposition:false,yposition:false,gameLevel:false,initialize:function(gameLevel){this.gameLevel=gameLevel;var coordinates=this.gameLevel.chainrxn.ballField.getCoordinates();var dimensions=this.gameLevel.chainrxn.ballField.getSize();this.element=new Element("div",{"id":"starterBall"}).inject(document.body);this.xposition=coordinates.left+dimensions.x/2;this.yposition=coordinates.top+dimensions.y/2;this.move();},checkBounds:function(){var coordinates=this.gameLevel.chainrxn.ballField.getCoordinates();var max_y=this.gameLevel.ymax+coordinates.top;var max_x=this.gameLevel.xmax+coordinates.left;if(this.xposition>max_x){this.xposition=max_x;}else if(this.xposition<coordinates.left){this.xposition=coordinates.left;}
if(this.yposition>max_y){this.yposition=max_y;}else if(this.yposition<coordinates.top){this.yposition=coordinates.top;}},move:function(){this.checkBounds();this.element.setStyles({"top":this.yposition-this.gameLevel.starterBallSize,"left":this.xposition-this.gameLevel.starterBallSize})},place:function(e){this.xposition=e.page.x;this.yposition=e.page.y;this.checkBounds();var coordinates=this.gameLevel.chainrxn.ballField.getCoordinates();new Ball(this.gameLevel,this.gameLevel.numBalls,this.xposition-coordinates.left,this.yposition-coordinates.top);this.element.removeClass("starterBall");this.element.destroy();$$("body")[0].removeEvents("mousemove");$$("body")[0].removeEvents("click");}})
var GameLevel=new Class({ballSize:9,minExpandedBallSize:20,maxExpandedBallSize:60,minBallSpeed:1,maxBallSpeed:5,numBalls:5,ballWinCount:4,checkInterval:30,bonusSpeed:600,doNotExplodeSpeed:30,expandDelay:300,shrinkDelay:150,minExpandedLifeLength:1000,maxExpandedLifeLength:6000,starterBallSize:92,badBonusStart:-5000,doNotExplodeIncrement:30,goodBonusStart:100,bonusFactor:2,maxDoNotExplodePoints:-100,clearFieldBonusMultiplier:20000,xmax:800,ymax:600,pointPopupHeight:20,pointPopupWidth:50,clearFieldBoxHeight:80,clearFieldBoxWidth:300,chainrxn:false,ballField:false,expandedBalls:[],movingBalls:[],repeater:false,totalBallsExpanded:-1,score:0,expandingIntervals:0,canvas:false,bonusMaxCounter:0,doNotExplodeMaxCounter:0,bonusCounter:-1,doNotExplodeCounter:-1,numExpandedBallsBonusDone:false,initialize:function(ballDetails,chainrxn){this.chainrxn=chainrxn;this.chainrxn.ballField.setStyle("background-color","#333");this.bonusMaxCounter=this.bonusSpeed/this.checkInterval;this.doNotExplodeMaxCounter=this.doNotExplodeSpeed/this.checkInterval;if(this.chainrxn.ballField.getContext){this.canvas=this.chainrxn.ballField.getContext("2d");}else{return alert("Your browser does not appear to support canvas, and our attempts to emulate it have failed.");}
this.chainrxn.ballField.set({"height":this.ymax,"width":this.xmax});this.canvas.globalAlpha=0.7;this.numBalls=ballDetails[1];this.ballWinCount=ballDetails[0];this.expandingIntervals=Math.round(this.expandDelay/this.checkInterval);this.shrinkingIntervals=Math.round(this.shrinkDelay/this.checkInterval);for(var i=0;i<this.numBalls;i++){var chance=Math.round(Math.random()*this.numBalls*2);if(chance<=1){new Ball(this,i,null,null,1);}else if(chance<=2){new Ball(this,i,null,null,-1);}else{new Ball(this,i);}}
starterBall=new StarterBall(this);this.repeater=function(){this.canvas.clearRect(0,0,this.xmax+this.ballSize,this.ymax+this.ballSize);if($chk(starterBall)){starterBall.move();}else{if(this.bonusCounter>=this.bonusMaxCounter){this.bonusCounter=0;}else{this.bonusCounter++;}
if(this.doNotExplodeCounter>=this.doNotExplodeMaxCounter){this.doNotExplodeCounter=0;}else{this.doNotExplodeCounter++;}
if(this.expandedBalls.length==0){if(this.totalBallsExpanded<this.ballWinCount){this.doLoser();}else{this.doWinner();}}}
this.movingBalls.each(function(ball,index){ball.maintain();}.bind(this))}.bind(this).periodical(this.checkInterval)
$$("body")[0].addEvent("mousemove",function(e){starterBall.xposition=e.page.x;starterBall.yposition=e.page.y;}.bind(this))
$$("body")[0].addEvent("click",function(e){if(e.target.id!="notifierButton"){starterBall.place(e);starterBall=null;this.chainrxn.levelNumberEl.set("text","Level "+(this.chainrxn.levelNumber+1));}}.bind(this))},doClearFieldBonus:function(){var bonus=this.clearFieldBonusMultiplier*(this.chainrxn.levelNumber+1);this.score+=bonus;this.chainrxn.ballField.set("morph",{"duration":500});this.chainrxn.ballField.morph({"background-color":"#FFFFFF"})
var coordinates=this.chainrxn.ballField.getCoordinates();var clearFieldBox=new Element("div",{"id":"clearFieldBox"}).inject(document.body);new Element("div",{"text":"Clear Field Bonus"}).inject(clearFieldBox);new Element("div",{"text":bonus+" Points"}).inject(clearFieldBox);clearFieldBox.setStyles({"top":(coordinates.top+(coordinates.height-this.clearFieldBoxHeight)/2),"left":(coordinates.left+(coordinates.width-this.clearFieldBoxWidth)/2)});},showWinBG:function(){this.chainrxn.ballField.set("morph",{"duration":1000});this.chainrxn.ballField.morph({"background-color":"#525252"})},doLoser:function(){this.repeater=$clear(this.repeater);this.canvas.clearRect(0,0,this.xmax+this.ballSize,this.ymax+this.ballSize);this.chainrxn.repeatLevel();},doWinner:function(){this.repeater=$clear(this.repeater);(function(){var clearFieldBox=$('clearFieldBox');if($chk(clearFieldBox)){clearFieldBox.destroy();}
this.canvas.clearRect(0,0,this.xmax+this.ballSize,this.ymax+this.ballSize);this.chainrxn.doNextLevel(this.score);}).delay(this.expandDelay,this)}})
var ChainRxn=new Class({score:0,game:false,notifierBox:false,notifierTitle:false,notifierButton:false,ballsExpandedEl:false,levelScoreEl:false,totalScoreEl:false,levelNumberEl:false,ballField:false,levels:[[1,5],[2,10],[4,15],[6,20],[10,25],[15,30],[18,35],[22,40],[30,45],[37,50],[48,55],[55,60]],levelNumber:0,initialize:function(){this.notifierBox=$('notifierBox');this.notifierTitle=$('notifierTitle');this.notifierButton=$('notifierButton');this.ballsExpandedEl=$('ballsExpanded');this.levelScoreEl=$('levelScore');this.totalScoreEl=$('totalScore');this.levelNumberEl=$('levelNumber');this.ballField=$("ballField");this.notifierButton.addEvent("click",function(){this.notifierButton.removeEvents();this.newGame();}.bind(this))},repeatLevel:function(){this.notifierTitle.set("text","You lose!");this.notifierButton.set("text","Try Again");this.notifierBox.setStyle("display","");this.notifierButton.addEvent("click",function(){this.newGame();}.bind(this))},doNextLevel:function(score){this.levelNumber++;this.score+=score;this.notifierTitle.set("text","You win! Total "+this.score+" points");this.notifierBox.setStyle("display","");if(this.levelNumber<this.levels.length){this.notifierButton.set("text","Play Level "+(this.levelNumber+1));this.notifierButton.addEvent("click",function(){this.newGame();}.bind(this))}else{this.notifierButton.set("text","Play Again");this.notifierButton.addEvent("click",function(){window.location=window.location;})}},newGame:function(){this.ballsExpandedEl.empty();this.levelScoreEl.empty();this.totalScoreEl.empty();this.levelNumberEl.empty();this.notifierTitle.set("text","Get "+this.levels[this.levelNumber][0]+" out of "+this.levels[this.levelNumber][1]+" balls!");this.notifierButton.set('text',"Play!");this.notifierButton.removeEvents();this.notifierButton.addEvent("click",function(){this.notifierBox.setStyle("display","none");this.notifierButton.removeEvents();this.game=new GameLevel(this.levels[this.levelNumber],this);}.bind(this))}})
window.addEvent("load",function(){chainrxn=new ChainRxn;}.bind(this))