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housie-gen.js
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housie-gen.js
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document.addEventListener("DOMContentLoaded", function () {
var shuffle = function (a) {
var r = a.slice(0, a.length);
for (var i = r.length - 1; i >= 0; i--) {
var j = Math.floor(Math.random() * (i + 1));
var temp = r[i];
r[i] = r[j];
r[j] = temp;
}
return r;
};
var ticket = [];
while (true) {
var selectedCols = [];
for (var i = 0; i < 3; i++) {
selectedCols[i] = Array.from(Array(9).keys());
selectedCols[i] = shuffle(selectedCols[i]);
selectedCols[i] = selectedCols[i].slice(0, 5);
}
var valid = true;
var colRows = [];
for (var j = 0; j < 9; j++) {
colRows[j] = [];
for (var i = 0; i < 3; i++) {
if (selectedCols[i].indexOf(j) != -1) {
colRows[j].push(i);
}
}
if (colRows[j].length > 2 || colRows[j].length == 0) {
valid = false;
break;
}
}
if (valid) {
for (var i = 0; i < 3; i++) {
ticket[i] = Array(9).fill(0);
}
var _loop_1 = function (j) {
var vals = Array.from(Array(10).keys()).map(function (v) { return 10 * j + (v + 1); });
vals = shuffle(vals);
vals = vals.slice(0, colRows[j].length);
vals = vals.sort(function (a, b) { return (a - b); });
for (var r = 0; r < colRows[j].length; r++) {
var i = colRows[j][r];
ticket[i][j] = vals[r];
}
};
for (var j = 0; j < 9; j++) {
_loop_1(j);
}
break;
}
}
var table = document.getElementById("ticket");
var body = table.createTBody();
for (var i = 0; i < 3; i++) {
var row = body.insertRow();
for (var j = 0; j < 9; j++) {
var cell = row.insertCell();
if (ticket[i][j] > 0)
cell.textContent = String(ticket[i][j]);
}
}
});