本文实例讲述了AngularJS实现的2048小游戏功能。分享给大家供大家参考，具体如下：
先来看看运行效果图：
具体代码如下：
index.html：
<!DOCTYPE html>
<html>
<head>
<meta charset=\"utf-8\">
<link rel=\"stylesheet\" type=\"text/css\" href=\"2048.css\" rel=\"external nofollow\" >
<script src=\"angular.min.js\"></script><!-- 1.4.6-->
<script src=\"angular-animate.min.js\"></script>
</head>
<body ng-app=\"myApp\" ng-controller=\"myCtrl\" ng-keypress=\"keyEvent($event)\">
<div>
<div class=\"div2048\">
<input class=\"btn btn-init\" type=\"button\" value=\"2048\" ng-click=\"init()\" />
<div class=\"Num-Back\">
<p class=\"Num-Title\">分数 <span class=\"done\" ng-show=\"GameOver\"> Game Over !!!</span> </p>
<p class=\"Num-Show\">
{{MaxSum}}
</p>
</div>
<ul class=\"ul2048\" ng-repeat=\"ArrNum in ArrShow\">
<!--<li ng-repeat=\"Num in ArrNum\" class=\"li2048 num{{Num}}\">{{Num == 0 ? \"\" : Num}}</li>-->
<li class=\"li2048 num{{ArrNum[0]}}\">{{ArrNum[0] == 0 ? \"\" : ArrNum[0]}}</li>
<li class=\"li2048 num{{ArrNum[1]}}\">{{ArrNum[1] == 0 ? \"\" : ArrNum[1]}}</li>
<li class=\"li2048 num{{ArrNum[2]}}\">{{ArrNum[2] == 0 ? \"\" : ArrNum[2]}}</li>
<li class=\"li2048 num{{ArrNum[3]}}\">{{ArrNum[3] == 0 ? \"\" : ArrNum[3]}}</li>
</ul>
</div>
</div>
<script src=\"JS2048.js\" charset=\"utf-8\"></script>
</body>
</html>
JS2048.js：
var app = angular.module(\'myApp\', [\'ngAnimate\']);
app.controller(\'myCtrl\', function ($scope) {
//初始化
$scope.ArrAll = new Array([0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0]);
$scope.ArrShow = new Array([0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0]);
$scope.MaxLenth = 4;
$scope.MaxSum = 0;
$scope.IsMoved = false;
$scope.GameOver = false;
$scope.init = function () {
$scope.GameOver = false;
$scope.ArrAll = new Array([0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0]);
//$scope.ArrAll = new Array([2, 4, 8, 16], [16, 8, 4, 2], [2, 4, 8, 16], [16, 8, 32, 2]);
$scope.ArrAll = CreateNum($scope.ArrAll , 2);
$scope.MaxSum = 0;
$scope.ArrShow = $scope.ArrAll.map(function (col, i) {
return $scope.ArrAll.map(function (row) {
return row[i];
})
});
//$scope.GameOver = !$scope.CheckMove();
}
$scope.init();
//移动 type : r_l,l_r,u_d,d_u
$scope.move = function (type) {
var moveArr = $scope.ArrAll;
if (type == \"u_d\" || type == \"d_u\") {//竖排的 上下 按照左右来操作
moveArr = moveArr.map(function (col, i) {
return moveArr.map(function (row) {
return row[i];
})
});
}
var lastArr = moveArr.concat();
moveArr = Remove0(moveArr);
var typeInt = 0;
if (type == \"r_l\" || type == \"d_u\") {
typeInt = 1
}
var arrShow = moveNum(moveArr, typeInt);
if ($scope.IsMoved(lastArr, arrShow)) {//有移动，增加一个随机数
arrShow = CreateNum(arrShow, 1);
}
//横竖转化
if (type == \"u_d\" || type == \"d_u\") {
$scope.ArrShow = arrShow;
$scope.ArrAll = arrShow.map(function (col, i) {
return arrShow.map(function (row) {
return row[i];
})
});
}
else {
$scope.ArrAll = arrShow;
$scope.ArrShow = arrShow.map(function (col, i) {
return arrShow.map(function (row) {
return row[i];
})
});
}
$scope.GameOver = !$scope.CheckMove();
}
//去除数组中的0
function Remove0(objRemove) {
var temp = new Array([0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0]);
for (var i = 0; i < objRemove.length; i++) {
var a = objRemove[i];
var b = new Array();
for (var l = 0; l < a.length; l++) {
if (a[l] != 0) {
b.push(a[l]);
}
}
//补齐0
for (var j = b.length; j < $scope.MaxLenth; j++) {
b.push(0);
}
temp[i] = b;
}
return temp;
}
//核心计算 0 左到右 1 右到左
function MoveCore(objCore, type) {
var b = new Array();
var c = objCore.concat();
if (type == 0) {// 倒序
c = c.reverse();
}
for (var i = 0; i < c.length; i++) {
if (c[i] == 0) {//去除0值
continue;
}
if (i + 1 < c.length && c[i] == c[i + 1]) {//相同的相加
b.push(c[i] * 2);
c[i + 1] = 0;
}
else {//直接赋值
b.push(c[i]);
c[i] = 0;
}
}
if (b.length < $scope.MaxLenth) {//补足0
for (var i = b.length; i < $scope.MaxLenth; i++) {
b.push(0);
}
}
if (type == 0) {//调整回来
b = b.reverse();
}
return b;
}
//递归计算
function MoveSum(objSum, i) {
if (objSum[i] == 0) {//去除0值
return 0;
}
else {
return objSum[i];
}
for (var i = 0; i < objSum.length; i++) {
if (c[i] == 0) {//去除0值
continue;
}
if (i + 1 < c.length && objSum[i] == objSum[i + 1]) {//相同的相加
b.push(c[i] * 2);
objSum[i + 1] = 0;
}
else {//直接赋值
b.push(objSum[i]);
objSum[i] = 0;
}
}
}
//移动数字
function moveNum(objNum, type) {
var arrShow = new Array([0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0]);
for (var i = 0; i < objNum.length; i++) {
var a = objNum[i];
if (!IsRowFull(a)) {
var b = MoveCore(a, type);
}
else {
b = a.concat();
}
arrShow[i] = b;
}
return arrShow;
}
//当前行/列 是否满了
function IsRowFull(objFull) {
var a = 1;
var b = 0;
var isExitSame = false;
for (var i = 0; i < objFull.length; i++) {
a = a * objFull[i];
b = b + objFull[i];
if (i + 1 < objFull.length && objFull[i] != 0 && objFull[i] == objFull[i + 1]) {
isExitSame = true;
}
}
if (isExitSame) return false;//存在相同的非零数字
if (b == 0) return true;//全部是0 相当于满了
return a != 0;
}
//验证数组是否变过
$scope.IsMoved = function (objLast, objNow) {
for (var i = 0; i < objLast.length; i++) {
for (var j = 0; j < objLast[i].length; j++) {
if (objLast[i][j] != objNow[i][j])
return true;
}
}
return false;
}
//随机产生数字
function CreateNum(objCreate, count) {
var b = new Array();
for (var i = 0; i < objCreate.length; i++) {
var a = objCreate[i];
for (var l = 0; l < a.length; l++) {
if (a[l] == 0) {
b.push(i + \",\" + l);
}
}
}
for (var c = 0; c < count; c++) {
if (b.length > 0) {
var num = Math.round(Math.random() * 100);
num = num < 80 ? 2 : 4;
var bIndex = Math.floor((Math.random() * b.length));
var objIndex = b[bIndex].split(\",\");
var i = parseInt(objIndex[0]);
var j = parseInt(objIndex[1]);
objCreate[i][j] = num;
$scope.MaxSum += num;
console.log(b[bIndex], num);
b.splice(bIndex, 1);
}
}
return objCreate;
}
//验证是否可移动
$scope.CheckMove = function () {
var objCheck = $scope.ArrAll;
for (var i = 0; i < objCheck.length; i++) {
var a = objCheck[i];
if (!IsRowFull(a)) {
return true;
}
}
var objCheckUD = objCheck.map(function (col, i) {
return objCheck.map(function (row) {
return row[i];
})
});
for (var i = 0; i < objCheckUD.length; i++) {
var a = objCheckUD[i];
if (!IsRowFull(a)) {
return true;
}
}
return false;
}
//left 37 up 38 right 39 down 40 没作用
//a:97 w 119 s 115 d 100
$scope.keyEvent = function ($event) {
var type = \"\";
if ($event.keyCode == 37 || $event.keyCode == 97) {//回车
type = \"r_l\";
}
if ($event.keyCode == 38 || $event.keyCode == 119) {//回车
type = \"d_u\";
}
if ($event.keyCode == 39 || $event.keyCode == 100) {//回车
type = \"l_r\";
}
if ($event.keyCode == 40 || $event.keyCode == 115) {//回车
type = \"u_d\";
}
if (type != \"\") {
$scope.move(type);
}
}
});
附：完整实例代码点击此处本站下载。
PS：这里再为大家推荐另两款本站2048游戏供大家参考（JS实现）
在线2048游戏：
http://tools.freexyz.cn/games/game2048
在线2048小游戏数字版：
http://tools.freexyz.cn/games/game2048num
更多关于AngularJS相关内容感兴趣的读者可查看本站专题：《AngularJS指令操作技巧总结》、《AngularJS入门与进阶教程》及《AngularJS MVC架构总结》
希望本文所述对大家AngularJS程序设计有所帮助。
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