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var score = 0;
var bestScore = 0;
var gridSize = 4;
var cellValues;
var availableCells;
//var labels = "PRC";
var labels = "2048";
var labelFunc;
var targetLevel = 11;
var checkTargetFlag = true;
switch (labels) {
case "2048":
labelFunc = function(n) {
return Math.pow(2, n).toString();
};
break;
case "PRC":
labelFunc = function(n) {
var dynasties = ["商", "周", "秦", "汉", "唐", "宋", "元", "明", "清", "ROC", "PRC"];
return dynasties[n-1];
};
break;
}
function startupFunction() {
// Initialize variables
score = 0;
checkTargetFlag = true;
var i;
var j;
cellValues = new Array(gridSize);
for (i = 0; i < gridSize; i++) {
cellValues[i] = new Array(gridSize);
for (j = 0; j < gridSize; j++)
cellValues[i][j] = 0;
}
updateAvailableCells();
refreshCellViews(2);
updateScore();
console.log("Started a new game");
}
function moveKey(event) {
var isMoved = false;
var i, j, v, v2;
var oldScore = score;
switch (event.key) {
case Qt.Key_Left:
for (i = 0; i < gridSize; i++) {
v = cellValues[i];
v2 = mergeVector(v);
if (! arraysIdentical(v,v2)) {
isMoved = true;
cellValues[i] = v2;
}
}
break;
case Qt.Key_Right:
for (i = 0; i < gridSize; i++) {
v = cellValues[i].slice();
v.reverse();
v2 = mergeVector(v);
if (! arraysIdentical(v,v2)) {
isMoved = true;
v2.reverse();
cellValues[i] = v2;
}
}
break;
case Qt.Key_Up:
for (i = 0; i < gridSize; i++) {
v = cellValues.map(function(row) {return row[i];});
v2 = mergeVector(v);
if (! arraysIdentical(v,v2)) {
isMoved = true;
for (j = 0; j < gridSize; j++) {
cellValues[j][i] = v2[j];
}
}
}
break;
case Qt.Key_Down:
for (i = 0; i < gridSize; i++) {
v = cellValues.map(function(row) {return row[i];});
v.reverse();
v2 = mergeVector(v);
if (! arraysIdentical(v,v2)) {
isMoved = true;
v2.reverse();
for (j = 0; j < gridSize; j++) {
cellValues[j][i] = v2[j];
}
}
}
break;
}
if (isMoved) {
updateAvailableCells();
refreshCellViews(1);
if (oldScore !== score) {
if (bestScore < score) {
bestScore = score;
}
updateScore();
if (checkTargetFlag && maxTileValue() >= targetLevel) {
winMessage.open();
}
}
} else {
if (isDead()) {
deadMessage.open();
}
}
}
function ind2sub(ind) {
var sub = [0, 0];
sub[0] = Math.floor(ind / gridSize);
sub[1] = ind % gridSize;
return sub;
}
function mergeVector(v0) {
// Pass 1: remove zero elements
var v = v0.slice();
var i = v.length;
while (i--) {
if (v[i] === 0) {
v.splice(i, 1);
}
}
// Pass 2: merge same elements
var v2 = [];
while (v.length > 0) {
if (v.length > 1 && v[0] === v[1]) {
v2.push(v[0] + 1);
score += parseInt(Math.pow(2, v[0]+1));
v.splice(0, 2);
} else {
v2.push(v[0]);
v.splice(0, 1);
}
}
// Fill the gaps with zeros
for (i = v2.length; i < v0.length; i++)
v2[i] = 0;
return v2;
}
function removeElementsWithValue(arr, val) {
var i = arr.length;
while (i--) {
if (arr[i] === val) {
arr.splice(i, 1);
}
}
return arr;
}
function arraysIdentical(a, b) {
var i = a.length;
if (i !== b.length) return false;
while (i--) {
if (a[i] !== b[i]) return false;
}
return true;
};
function updateAvailableCells() {
availableCells = [];
for (var i = 0; i < gridSize; i++) {
for (var j = 0; j < gridSize; j++) {
if (cellValues[i][j] === 0) {
availableCells.push(i * gridSize + j);
}
}
}
}
function refreshCellViews(n) {
var i, sub;
// Popup a new number
for (i = 0; i < n; i++) {
var oneOrTwo = Math.random() < 0.9 ? 1: 2;
var randomCellId = availableCells[Math.floor(Math.random() * availableCells.length)];
sub = ind2sub(randomCellId);
cellValues[sub[0]][sub[1]] = oneOrTwo;
// Mark this cell as unavailable
var idx = availableCells.indexOf(randomCellId);
availableCells.splice(idx, 1);
}
// Refresh the cell views
for (i = 0; i < cells.count; i++) {
sub = ind2sub(i);
var cv = cellValues[sub[0]][sub[1]];
var sty = computeTileStyle(cv);
if ( cv === 0) {
cells.itemAt(i).tileText = "";
} else {
cells.itemAt(i).tileText = labelFunc(cv);
}
cells.itemAt(i).color = sty.bgColor;
cells.itemAt(i).tileColor = sty.fgColor;
cells.itemAt(i).tileFontSize = sty.fontSize;
}
}
function updateScore() {
scoreBoard.itemAt(0).scoreText = MyScript.score.toString();
scoreBoard.itemAt(1).scoreText = MyScript.bestScore.toString();
}
function isDead() {
var dead = true;
for (var i = 0; i < gridSize; i++) {
for (var j = 0; j < gridSize; j++) {
if (cellValues[i][j] === 0) {
dead = false;
}
if (i > 0) {
if (cellValues[i-1][j] === cellValues[i][j]) {
dead = false;
}
}
if (j > 0) {
if (cellValues[i][j-1] === cellValues[i][j]) {
dead = false;
}
}
}
}
return dead;
}
function computeTileStyle(n) {
var fgColors = ["#776E62", "#F9F6F2"];
var bgColors = ["#EEE4DA", "#EDE0C8", "#F2B179", "#F59563", "#F67C5F", "#F65E3B", "#EDCF72", "#EDCC61", "#EDC850", "#EDC53F", "#EDC22E", "#3C3A32"];
var sty = {bgColor: helper.myColors.bggray,
fgColor: fgColors[0],
fontSize: 55 };
if (n > 0) {
if (n > 2)
sty.fgColor = fgColors[1];
if (n <= bgColors.length)
sty.bgColor = bgColors[n-1];
else
sty.bgColor = bgColors[bgColors.length-1];
}
if (labels === "2048") {
/* Adjust font size according to size of the number
[2, 100): 55
[100, 1000): 45
[1000, 2048]: 35
> 2048: 30
*/
var pv = Math.pow(2, n);
if (pv >= 100 && pv < 1000)
sty.fontSize = 45;
else if (pv >= 1000 && pv <= 2048)
sty.fontSize = 35;
else if (pv > 2048)
sty.fontSize = 30;
}
return sty;
}
function maxTileValue() {
var mv = 0;
for (var i = 0; i < gridSize; i++) {
for (var j = 0; j < gridSize; j++) {
var cv = cellValues[i][j];
if ( mv < cv) {
mv = cv;
}
}
}
return mv;
}