var w,h; var c,ctx; var pixels,imgdata; var palette=[]; var fire=[]; window.onload = init; function rand(min,max) { return Math.floor((max-min)*Math.random())+min; } function colorRGB(r,g,b) { this.r=r; this.g=g; this.b=b; } function colorHSL(h,s,l) { this.h=h; this.s=s; this.l=l; } function init() { c=document.querySelector("canvas"); ctx=c.getContext('2d'); c.width=window.innerWidth; c.height=window.innerHeight; w=c.width; h=c.height; palette = new Array(256); for(i=0;i> 16)&255, (c >> 8)&255, (c&255)); return rgb; } function HueToRGB(v1,v2,vh) { if(vh<0) vh+=1; if(vh>1) vh-=1; if(6*vh < 1) return (v1 + (v2-v1)*6*vh); if(2*vh<1) return v2; if(3*vh<2) return (v1 + (v2-v1)*((2.0/3.0)-vh)*6); return v1; } // Function that converts a hue/saturation/light model to red/green/blue model function HSLToRGB(hsl) { var rgbcol; var v1,v2, hue; // if saturation is 0, color is a shade of gray if(hsl.s==0) { rgbcol=new colorRGB(hsl.l*255,hsl.l*255,hsl.l*255); } hue = hsl.h/36.0; v2 = (hsl.l<0.5) ? (hsl.l)*(hsl.s+1):((hsl.l+hsl.s)-(hsl.l*hsl.s)); v1 = 2*hsl.l-v2; rgbcol = new colorRGB(255*HueToRGB(v1,v2,hue+1.0/3.0), 255*HueToRGB(v1,v2,hue), 255*HueToRGB(v1,v2,hue-1.0/3.0)); return rgbcol; } function initFire() { var rgb; for(i=0;i<256;i++) { rgb = HSLToRGB(new colorHSL(i/3,255, Math.min(2*i,255))); palette[i]=RGBToInt(rgb.r,rgb.g,rgb.b); } // initialize fire to 0 for(x=0;x

firewall