Team:Cornell/javascripts/mycodraw

From 2013.igem.org

var P_TURN=0.1;var P_SPLIT=0.1/256;var P_TRAIL=0.1;var P_DIE=0.01;var mc=0x44;var myc=[mc,mc,mc];var invertFood=false;var invertMyc=true;var antialias=true;var l=50;var trailStrength=0.1;var bleedHue=0;var overEat=1;var w;var h;var food;var draw;var drawi;var drawc;var cx;var cy;var tips;var trls;var dirs;var trns;var spts;var jins;var tins;var trqs;var trcs;var trailCounts;var ts;function mycoDraw(){var canvas=document.getElementById("mycodraw");if(navigator.userAgent.indexOf('Firefox')!=-1){canvas.style.display="none";document.getElementById("fallback").style.display="block";return}w=canvas.children[0].width;h=canvas.children[0].height;canvas.width=w;canvas.height=h;drawc=canvas.getContext("2d");drawc.fillStyle="#F2F2F2";drawc.fillRect(0,0,canvas.width,canvas.height);drawi=drawc.getImageData(0,0,w,h);draw=drawi.data;var src_canvas=document.createElement('canvas');src_canvas.width=w;src_canvas.height=h;var foodc=src_canvas.getContext("2d");foodc.drawImage(canvas.children[0],0,0);food=foodc.getImageData(0,0,w,h).data;cx=w/2;cy=h/2;tips=new Array();trls=new Array();dirs=new Array();trns=new Array();spts=new Array();jins=new Array();tins=new Array();trqs=new Array();trcs=new Array();trailCounts=new Array();ts=new Array();for(var i=0;i<100;i++){tips.push([Math.random()*w,Math.random()*h]);trls.push(new Array(l));dirs.push(Math.floor(Math.random()*360));trns.push(Math.random()>0.5);spts.push(10);trailCounts.push(0)}var speed=100;var limit=0;for(var t=0;tips.length>0&&limit<1000;t=(l>0?(t+1)%l:0)){limit++;ts.push(t);setTimeout(updateTips,Math.floor(speed+0.5));speed=speed*0.999}}function updateTips(){var t=ts.shift();for(var i=tips.length-1;i>=0;i--){var p=tips[i];var trl=trls[i];if(l>0)trl[t]=p.slice(0);spts[i]=spts[i]-1;var vals=colorPoint(p,null,1.0,dirs[i]);var out=vals[0];if(out>0.45){var dx=p[0]-cx;var dy=p[1]-cy;var theta=Math.floor(Math.abs((Math.atan(dy/dx)/Math.PI)*180));if(dx>0==dy<0){theta=180*(dx>0?1:2)-theta}if(dx>0&&dy>0){theta=theta+180}dirs[i]=theta}var wp=vals[1];var ref=[vals[2],vals[3],vals[4]];if(trailCounts[i]==0&&Math.random()<P_TRAIL&&vals[3]>0.4&&vals[4]>0.5&&(Math.abs(vals[2]-bleedHue)<0.05||Math.abs(Math.abs(vals[2]-1.0)-bleedHue)<0.05)){trailCounts[i]=l;jins.push(0);tins.push(t);trqs.push(trls[i].slice(0));trcs.push(ref)}else{trailCounts[i]=Math.max(trailCounts[i]-1,0)}if(Math.random()<P_TURN*wp*wp*wp*wp){trns[i]=!trns[i]}if(Math.random()<P_SPLIT*(wp*256)/(tips.length/50)&&spts[i]<1){spts[i]=10;trls.push(trls[i].slice(0));tips.push(p.slice(0));dirs.push(dirs[i]);trns.push(!trns[i]);spts.push(10);trailCounts.push(0)}if(out<0.1&&Math.random()<P_DIE*(1.0-wp)){tips.splice(i,1);trls.splice(i,1);dirs.splice(i,1);trns.splice(i,1);spts.splice(i,1);trailCounts.splice(i,1)}else{var turn=Math.floor(Math.random()*5);dirs[i]=(dirs[i]+(trns[i]?turn:-1*turn))%360;var xd=wp*Math.cos(((dirs[i])/180.0)*Math.PI);var yd=wp*Math.sin(((dirs[i])/180.0)*Math.PI);tips[i]=[p[0]+xd,p[1]+yd]}}if(l>0){for(var i=tins.length-1;i>=0;i--){colorPoint(trqs[i][(tins[i]+(l-1)-jins[i])%l],trcs[i],trailStrength*(1.0-((1.0*jins[i])/(1.0*l))),0);jins[i]=jins[i]+1;if(jins[i]==l){jins.splice(i,1);tins.splice(i,1);trqs.splice(i,1);trcs.splice(i,1)}}}drawc.putImageData(drawi,0,0)}function colorPoint(p,ref,strength,dir){var rets=new Array(5);if(p==null)return rets;var dx1=p[0]-0.5;var dx2=p[0]+0.5;var dy1=p[1]-0.5;var dy2=p[1]+0.5;var x1=Math.floor(dx1-(dx1<0?1:0));var x2=Math.floor(dx2-(dx2<0?1:0));var y1=Math.floor(dy1-(dy1<0?1:0));var y2=Math.floor(dy2-(dy2<0?1:0));var x=[x2,x1,x1,x2,x1-1,x1,x2,x2+1];var y=[y2,y2,y1,y1,0,0,0,0];var mx=((x1+x2)/2.0)+0.5;var my=((y1+y2)/2.0)+0.5;var p1=(dx2-mx)*(dy2-my);var p2=(mx-dx1)*(dy2-my);var p3=(dx2-mx)*(my-dy1);var p4=(mx-dx1)*(my-dy1);var pj=[p1,p2,p3,p4,0,0,0,0];if((0<=dir&&dir<90)||(180<=dir&&dir<270)){y[4]=y2;y[5]=y2+1;y[6]=y1-1;y[7]=y1;pj[4]=p2*overEat;pj[5]=p2*overEat;pj[6]=p4*overEat;pj[7]=p4*overEat}else{y[4]=y1;y[5]=y1-1;y[6]=y2+1;y[7]=y2;pj[4]=p3*overEat;pj[5]=p3*overEat;pj[6]=p1*overEat;pj[7]=p1*overEat}if(!antialias){var ps=new Array();for(var j=0;j<4;j++)ps.push(pj[j]);ps.sort();for(var j=0;j<4;j++)if(pj[j]==ps[3])pj[j]=1.0;else pj[j]=0.0}var rgb=new Array();var wd=0.0;var wp=0.0;if(ref==null){rgb.push(getPixel(food,x2,y2));rgb.push(getPixel(food,x1,y2));rgb.push(getPixel(food,x1,y1));rgb.push(getPixel(food,x2,y1));var hue=0;var saturation=0;var brightness=0;for(var j=0;j<4;j++){var hsb=RGBtoHSB(rgb[j]);hue+=hsb[0]*pj[j];saturation+=hsb[1]*pj[j];brightness+=hsb[2]*pj[j]}rets[2]=hue;rets[3]=saturation;rets[4]=brightness;var dr=0;var dg=0;var db=0;for(var j=0;j<4;j++){dr+=pj[j]*Math.floor(rgb[j][0]);dg+=pj[j]*Math.floor(rgb[j][0]);db+=pj[j]*Math.floor(rgb[j][0])}var r=Math.floor(dr);var g=Math.floor(dg);var b=Math.floor(db);wd=Math.min(256.0,Math.floor(((r+g+b)/3))+25.6);wp=wd/256.0;if(false)wp=1.0-wp}var inside=new Array(8);for(var j=0;j<8;j++){inside[j]=x[j]<w&&y[j]<h;inside[j]=inside[j]&&x[j]>=0&&y[j]>=0;if(inside[j]){if(ref==null){var origColor=getPixel(food,x[j],y[j]);var addColor=addRGB(origColor,myc,pj[j]);var addedColor=subRGB(addColor,origColor,1.0);var imgd=getPixel(food,x[j],y[j]);for(var k=0;k<3;k++)imgd[k]=addColor[k];setPixel(food,imgd,x[j],y[j]);if(j<5){imgd=getPixel(draw,x[j],y[j]);var subbedColor=subRGB(imgd,addedColor,1.0);for(var k=0;k<3;k++)imgd[k]=subbedColor[k];setPixel(draw,imgd,x[j],y[j])}}else{var imgd=getPixel(draw,x[j],y[j]);var addedColor=addHSB(imgd,ref,strength);for(var k=0;k<3;k++)imgd[k]=addedColor[k];setPixel(draw,imgd,x[j],y[j])}}}var out=0;for(var j=0;j<4;j++)if(!inside[j])out+=0.25;rets[0]=out;rets[1]=wp;return rets}function addRGB(c1,c2,weight){return[Math.min(c1[0]+Math.floor(c2[0]*weight+0.5),0xFF),Math.min(c1[1]+Math.floor(c2[1]*weight+0.5),0xFF),Math.min(c1[2]+Math.floor(c2[2]*weight+0.5),0xFF)]}function subRGB(c1,c2,weight){return[Math.min(c1[0]-Math.floor(c2[0]*weight+0.5),0xFF),Math.min(c1[1]-Math.floor(c2[1]*weight+0.5),0xFF),Math.min(c1[2]-Math.floor(c2[2]*weight+0.5),0xFF)]}function addHSB(cd,cr,weight){hd=RGBtoHSB(cd);hr=RGBtoHSB(cr);return HSBtoRGB([bleedHue,Math.max((hd[1]+hr[1]*weight)/(1.0+weight),hd[1]),hd[2]])}function RGBtoHSB(rgb){var r=rgb[0]/255;var g=rgb[1]/255;var b=rgb[2]/255;var min=Math.min(r,g,b);var max=Math.max(r,g,b);var del=max-min;var hsb=new Array(3);hsb[2]=max;if(del==0){hsb[0]=0;hsb[1]=0}else{hsb[1]=del/max;var delR=(((max-r)/6)+(del/2))/del var delG=(((max-g)/6)+(del/2))/del var delB=(((max-b)/6)+(del/2))/del if(r==max)hsb[0]=delB-delG;else if(g==max)hsb[0]=(1/3)+delR-delB;else if(b==max)hsb[0]=(2/3)+delG+delR;if(hsb[0]<0)hsb[0]=hsb[0]+1;if(hsb[0]>1)hsb[0]=hsb[0]-1}return hsb}function HSBtoRGB(hsb){var h=hsb[0];var s=hsb[1];var v=hsb[2];var r=v;var g=v;var b=v;if(s!=0){var sh=h*6;if(sh==6)sh=0;var hi=Math.floor(sh);var v1=v*(1-s);var v2=v*(1-s*(sh-hi));var v3=v*(1-s*(1-(sh-hi)));if(hi==0){r=v;g=v3;b=v1}else if(hi==1){r=v2;g=v;b=v1}else if(hi==2){r=v1;g=v;b=v3}else if(hi==3){r=v1;g=v2;b=v}else if(hi==4){r=v3;g=v1;b=v}else{r=v;g=v1;b=v2}}return[Math.floor(r*255),Math.floor(g*255),Math.floor(b*255)]}function getPixel(data,x,y){var i=(x+y*w)*4;return[data[i],data[i+1],data[i+2],data[i+3]]}function setPixel(data,pix,x,y){var i=(x+y*w)*4;for(var j=0;j<3;j++)data[i+j]=pix[j]}function pausecomp(ms){ms+=new Date().getTime();while(new Date()<ms){}}