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board.js
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board.js
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function Board () {
this.grid = new Array(9);
this.set = function(index, value) {
this.grid[index] = value;
}
this.rows = function () {
var g = this.grid;
return [
[g[0], g[1], g[2]],
[g[3], g[4], g[5]],
[g[6], g[7], g[8]]
];
}
this.columns = function () {
var g = this.grid;
return [
[g[0], g[3], g[6]],
[g[1], g[4], g[7]],
[g[2], g[5], g[8]]
];
}
this.diagonals = function () {
var g = this.grid;
return [
[g[0], g[4], g[8]],
[g[6], g[4], g[2]]
];
}
this.open_spaces = function () {
var r = [];
var arr = this.grid;
for (var i = 0, l = arr.length; i < l; i ++) {
var v = arr[i];
if (v === undefined) {
r.push(i);
}
}
return r;
}
};