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Ingy döt Net 2013-04-10 12:38:42 -07:00
parent 3af7344581
commit 86c034bb8b
1364 changed files with 21352 additions and 0 deletions
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63
Task/Forest-fire/JavaScript/forest-fire-1.js Normal file
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var forest = {
X: 50,
Y: 50,
propTree: 0.5,
propTree2: 0.01,
propBurn: 0.0001,
t: [],
c: ['rgb(255,255,255)', 'rgb(0,255,0)', 'rgb(255,0,0)']
};
for(var i = 0; i < forest.Y; i++) {
forest.t[i] = [];
for(var j = 0; j < forest.Y; j++) {
forest.t[i][j] = Math.random() < forest.propTree ? 1 : 0;
}
}
function afterLoad(forest) {
var canvas = document.getElementById('canvas');
var c = canvas.getContext('2d');
for(var i = 0; i < forest.X; i++) {
for(var j = 0; j < forest.Y; j++) {
c.fillStyle = forest.c[forest.t[i][j]];
c.fillRect(10*j, 10*i, 10*j+9, 10*i+9);
}
}
}
function doStep(forest) {
var to = [];
for(var i = 0; i < forest.Y; i++) {
to[i] = forest.t[i].slice(0);
}
//indices outside the array are undefined; which converts to 0=empty on forced typecast
for(var i = 0; i < forest.Y; i++) {
for(var j = 0; j < forest.Y; j++) {
if(0 == to[i][j]) {
forest.t[i][j] = Math.random() < forest.propTree2 ? 1 : 0;
} else if(1 == to[i][j]) {
if(
((i>0) && (2 == to[i-1][j])) ||
((i<forest.Y-1) && (2 == to[i+1][j])) ||
((j>0) && (2 == to[i][j-1])) ||
((j<forest.X-1) && (2 == to[i][j+1]))
) {
forest.t[i][j] = 2;
} else {
forest.t[i][j] = Math.random() < forest.propBurn ? 2 : 1;
}
} else if(2 == to[i][j]) {
//If it burns, it gets empty ...
forest.t[i][j] = 0;
}
}
}
}
window.setInterval(function(){
doStep(forest);
afterLoad(forest);
}, 100);

14
Task/Forest-fire/JavaScript/forest-fire-2.js Normal file
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<!DOCTYPE html>
<html>
<head>
<title>Forest Fire</title>
</head>
<body>
<canvas id="canvas" width="500" height="500">
Your browser doesn't support HTML5 Canvas.
</canvas>
<script language="JavaScript">//<![CDATA[<!--
// --> HERE COMES THE SCRIPT FROM ABOVE <--
//-->]]></script>
</body>
</html>