提示：您可以先修改部分代碼再運行
<html><head><title>火焰</title><script language="JavaScript">function PixelAxis(left, bottom, width, height, color){color = color || "#000000";var pixels = [];for(var i = 0; i <= width; i++){pixels[i] = [];for(var j = 0; j<=height; j++){var img = new Image(1, 1);img.style.backgroundColor = color;img.style.position = "absolute";img.style.left = left + i;img.style.top = bottom - j;pixels[i][j] = img;document.body.appendChild(img);}}return function(x, y, color){pixels[x][y].style.backgroundColor = color;}}function color(r, g ,b){ r = r > 0xF ? r.toString(16) : "0" + r.toString(16);g = g > 0xF ? g.toString(16) : "0" + g.toString(16);b = b > 0xF ? b.toString(16) : "0" + b.toString(16);return "#"+r+g+b;}function fireColor(seed){return color(seed, Math.floor(0.5*seed), 0);}function spreadSeeds(width, height){var pixel = PixelAxis(200, 200, width, height);var fc = [];fc[0] = [];return function(){for(var i = 0; i <= width; i++){var s = Math.floor(255 * Math.random());fc[0][i] = s;pixel(i, 0, fireColor(s));}for(var i = 1; i < height; i++){fc[i] = [];for(var j = 0; j <= width; j++){var a = j > 0 ? fc[i-1][j-1] : 0;var b = fc[i-1][j];var c = j < width ? fc[i-1][j+1] : 0;var s = Math.floor((a+b+c)/3);//alert(c);fc[i][j] = s;s = s-Math.floor(i/height*255); s = s > 0 ? s : 0;pixel(j, i, fireColor(s));}}}}</script></head><body bgcolor="#000000"></body><script>var f = spreadSeeds(60, 120);setInterval("f()",1);</script>www.111cn.net</html>
提示：您可以先修改部分代碼再運行
