Home >Web Front-end >JS Tutorial >JavaScript 2048 game example code (simple and easy to understand)_javascript skills
JavaScript 2048 game example code (simple and easy to understand)_javascript skills
- WBOYOriginal
- 2016-05-16 15:08:241723browse
Without further ado, I will post the code directly for everyone. If you feel satisfied, just take it.
<!DOCTYPE html PUBLIC "-//WC//DTD XHTML . Transitional//EN" "http://www.w.org/TR/xhtml/DTD/xhtml-transitional.dtd">
<html xmlns="http://www.w.org//xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-" />
<title>无标题文档</title>
<style>
header{display:block; margin: auto; width:%; text-align:center;}
header h{font-size:px; font-family:Arial, Helvetica, sans-serif; font-weight:bold;}
header #newgamebutton{display:block; margin:px auto; width:px; padding:px px; background-color:#fa; font-family:Arial; color:white; border-radius:px; text-decoration:none;}
header #newgamebutton:hover{background-color:#fb;}
header p{font-family:Arial; font-size:px; margin:px auto;}
#grid-container{width:px; height:px; padding:px; margin:px auto; background-color:#bbada; border-radius:px; position:relative;}
.grid-cell{width:px; height:px; border-radius:px; color:white; background-color:#cccb; position:absolute; font-family:Arial; font-weight:bold; font-size:px; line-height:px; text-align:center;}
.gameover{display:block; margin: auto; width:px; text-align:center; vertical-align:middle; position:absolute;}
.gameover p {
font-family: Arial;
font-size: px;
color: white;
margin: px auto;
margin-top: px;
}
.gameover span {
font-family: Arial;
font-size: px;
color: white;
margin: px auto;
}
#restartgamebutton {
display: block;
margin: px auto;
width: px;
padding: px px;
background-color: #fa;
font-family: Arial;
font-size: px;
color: white;
border-radius: px;
text-decoration: none;
}
#restartgamebutton:hover {
background-color: #fb;
}
#showGameover{width:px; padding:px px; background-color:#fa; font-family:Arial; color:white; border-radius:px; text-decoration:none; font-size:px; position:absolute;}
</style>
<script>
window.onload = function (){
//newgame();
var showScore = document.getElementById('score');
score = ;
init();
generateOneNumber();
generateOneNumber();
window.onkeydown = function (e){
var e = e || window.event;
switch(e.keyCode){
case :
if(canMoveLeft(board)){
moveLeft();
generateOneNumber();
isgameover();
}
break;
case :
if(canMoveUp(board)){
moveUp();
generateOneNumber();
isgameover();
}
break;
case :
if(canMoveRight(board)){
moveRight();
generateOneNumber();
isgameover();
}
break;
case :
if(canMoveDown(board)){
moveDown();
generateOneNumber();
isgameover();
}
break;
default :
break;
}
};
};
function generateOneNumber() {
if(!nospace(board)){
var randx = parseInt(Math.floor(Math.random() * ));
var randy = parseInt(Math.floor(Math.random() * ));
while (true) {
if (board[randx][randy] == ) {
break;
}
var randx = parseInt(Math.floor(Math.random() * ));
var randy = parseInt(Math.floor(Math.random() * ));
}
var randNumber = Math.random() < . ? : ;
board[randx][randy] = randNumber;
var gridCell = document.getElementById('grid-cell-'+randx+'-'+randy);
gridCell.innerHTML = randNumber;
//
}
else {
gameover();
}
}
function newgame() {
window.location.reload();
}
var board = new Array();
function init(){
for(var i=;i<;i++){
board[i] = new Array();
for(var j=;j<;j++){
board[i][j] = ;
var gridCell = document.getElementById('grid-cell-'+i+'-'+j);
gridCell.style.top = (+i*)+'px';
gridCell.style.left = (+j*)+'px';
}
}
}
function getNumberBackgroundColor(number) {
switch (number) {
case :return "#eeeda";break;
case :return "#edec";break;
case :return "#fb";break;
case :return "#f";break;
case :return "#fcf";break;
case :return "#feb";break;
case :return "#edcf";break;
case :return "#edcc";break;
case :return "#c";break;
case :return "#be";break;
case :return "#c";break;
case :return "#ac";break;
case :return "#c";break;
}
}
function getNumberColor(number) {
if (number <= ) {
return "#e"
}
return "white";
}
function nospace(board) {
for (var i = ; i < ; i++) {
for (var j = ; j < ; j++) {
if (board[i][j] == ) {
return false;
}
}
}
return true;
}
function canMoveLeft(board) {
for (var i = ; i < ; i++) {
for (var j = ; j < ; j++) {
if (board[i][j] != ) {
if (board[i][j - ] == || board[i][j - ] == board[i][j]) {return true; }
}
}
}
return false;
}
function moveLeft() {
for (var i = ; i < ; i++) {
for (var j = ; j < ; j++) {
if (board[i][j] != ) {
for (var k = j-; k > -; k--) {
if(board[i][k] == || board[i][k] == board[i][j]){
board[i][k] = board[i][k] + board[i][j];
board[i][j] = ;
var gridCell = document.getElementById('grid-cell-'+i+'-'+j);
gridCell.innerHTML = '';
var gridCellk = document.getElementById('grid-cell-'+i+'-'+k);
gridCellk.innerHTML = board[i][k];
gridCellk.style.backgroundColor = getNumberBackgroundColor(board[i][k]);
gridCell.style.backgroundColor = '#cccb';
gridCellk.style.color = getNumberColor(board[i][k]);
gridCell.style.color = 'white';
score += board[i][k];
var showScore = document.getElementById('score');
showScore.innerHTML = score;
j = k;
//
}
else {
break; //跳出 var k 的for循环
}
}
}
}
}
}
function canMoveUp(board) {
for (var j = ; j < ; j++) {
for (var i = ; i < ; i++) {
if (board[i][j] != ) {
if (board[i - ][j] == || board[i - ][j] == board[i][j]) {return true; }
}
}
}
return false;
}
function moveUp() {
for (var j = ; j < ; j++) {
for (var i = ; i < ; i++) {
if (board[i][j] != ) {
for (var k = i-; k > -; k--) {
if(board[k][j] == || board[k][j] == board[i][j]){
board[k][j] = board[k][j] + board[i][j];
board[i][j] = ;
var gridCell = document.getElementById('grid-cell-'+i+'-'+j);
gridCell.innerHTML = '';
var gridCellk = document.getElementById('grid-cell-'+k+'-'+j);
gridCellk.innerHTML = board[k][j];
gridCellk.style.backgroundColor = getNumberBackgroundColor(board[k][j]);
gridCell.style.backgroundColor = '#cccb';
gridCellk.style.color = getNumberColor(board[i][k]);
gridCell.style.color = 'white';
score += board[k][j];
var showScore = document.getElementById('score');
showScore.innerHTML = score;
i = k;
//
}
else {
break; //跳出 var k 的for循环
}
}
}
}
}
}
function canMoveRight(board) {
for (var i = ; i < ; i++) {
for (var j = ; j > -; j--) {
if (board[i][j] != ) {
if (board[i][j + ] == || board[i][j + ] == board[i][j]) {return true; }
}
}
}
return false;
}
function moveRight() {
for (var i = ; i < ; i++) {
for (var j = ; j > -; j--) {
if (board[i][j] != ) {
for (var k = j+; k < ; k++) {
if(board[i][k] == || board[i][k] == board[i][j]){
board[i][k] = board[i][k] + board[i][j];
board[i][j] = ;
var gridCell = document.getElementById('grid-cell-'+i+'-'+j);
gridCell.innerHTML = '';
var gridCellk = document.getElementById('grid-cell-'+i+'-'+k);
gridCellk.innerHTML = board[i][k];
gridCellk.style.backgroundColor = getNumberBackgroundColor(board[i][k]);
gridCell.style.backgroundColor = '#cccb';
gridCellk.style.color = getNumberColor(board[i][k]);
gridCell.style.color = 'white';
score += board[i][k];
var showScore = document.getElementById('score');
showScore.innerHTML = score;
j = k;
//
}
else {
break; //跳出 var k 的for循环
}
}
}
}
}
}
function canMoveDown(board) {
for (var j = ; j < ; j++) {
for (var i = ; i > -; i--) {
if (board[i][j] != ) {
if (board[i + ][j] == || board[i + ][j] == board[i][j]) {return true; }
}
}
}
return false;
}
function moveDown() {
for (var j = ; j < ; j++) {
for (var i = ; i > -; i--) {
if (board[i][j] != ) {
for (var k = i+; k < ; k++) {
if(board[k][j] == || board[k][j] == board[i][j]){
board[k][j] = board[k][j] + board[i][j];
board[i][j] = ;
var gridCell = document.getElementById('grid-cell-'+i+'-'+j);
gridCell.innerHTML = '';
var gridCellk = document.getElementById('grid-cell-'+k+'-'+j);
gridCellk.innerHTML = board[k][j];
gridCellk.style.backgroundColor = getNumberBackgroundColor(board[k][j]);
gridCell.style.backgroundColor = '#cccb';
gridCellk.style.color = getNumberColor(board[i][k]);
gridCell.style.color = 'white';
score += board[k][j];
var showScore = document.getElementById('score');
showScore.innerHTML = score;
i = k;
//
}
else {
break; //跳出 var k 的for循环
}
}
}
}
}
}
function isgameover() {
if (nospace(board) && nomove(board)) {
gameover();
}
}
function nomove(board) {
if (canMoveDown(board) ||
canMoveLeft(board) ||
canMoveRight(board) ||
canMoveUp(board)) {
return false;
}
return true;
}
function bounce(obj,top){
clearInterval(obj.timer);
var nSpeed = ;
var acceleration = ;
var Flag = ;
obj.timer = setInterval(function (){
nSpeed += acceleration;
nSpeed *= .;
if(obj.offsetTop + nSpeed >= top){
obj.style.top = top + 'px';
nSpeed *= -;
}else{
if(Math.abs(nSpeed) < && Math.abs(top-obj.offsetTop)<){
clearInterval(obj.timer);
}
else{
obj.style.top = obj.offsetTop + nSpeed + 'px';
}
}
},);
}
function gameover() {
//alert("gameover!");
var gameover = document.createElement('div');
gameover.id = 'showGameover';
gameover.innerHTML = 'GAME OVER';
var gridContainer = document.getElementById('grid-container');
gridContainer.appendChild(gameover);
var showGameover = document.getElementById('showGameover');
showGameover.style.left = (gridContainer.offsetWidth - showGameover.offsetWidth ) / + 'px';
bounce(showGameover,);
}
</script>
</head>
<body>
<header>
<!--<h> </h>-->
<a href="javascript:newgame();" id="newgamebutton"> New Game </a>
<p> score: <span id="score"></span></p>
<div id="grid-container">
<div class="grid-cell" id="grid-cell--"></div>
<div class="grid-cell" id="grid-cell--"></div>
<div class="grid-cell" id="grid-cell--"></div>
<div class="grid-cell" id="grid-cell--"></div>
<div class="grid-cell" id="grid-cell--"></div>
<div class="grid-cell" id="grid-cell--"></div>
<div class="grid-cell" id="grid-cell--"></div>
<div class="grid-cell" id="grid-cell--"></div>
<div class="grid-cell" id="grid-cell--"></div>
<div class="grid-cell" id="grid-cell--"></div>
<div class="grid-cell" id="grid-cell--"></div>
<div class="grid-cell" id="grid-cell--"></div>
<div class="grid-cell" id="grid-cell--"></div>
<div class="grid-cell" id="grid-cell--"></div>
<div class="grid-cell" id="grid-cell--"></div>
<div class="grid-cell" id="grid-cell--"></div>
</div>
</header>
</body>
</html>
I am very satisfied with the above code. It is all about div+css knowledge. If there are any problems with the code, you are welcome to give your valuable opinions and learn and make progress together. At the same time, I am also very grateful for your support of the Script House website. Thank you!
Statement：
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Previous article：JavaScript controls web pages-CSS and DOM_javascript skillsNext article：JavaScript controls web pages-CSS and DOM_javascript skills
Related articles
See more- An in-depth analysis of the Bootstrap list group component
- Detailed explanation of JavaScript function currying
- Complete example of JS password generation and strength detection (with demo source code download)
- Angularjs integrates WeChat UI (weui)
- How to quickly switch between Traditional Chinese and Simplified Chinese with JavaScript and the trick for websites to support switching between Simplified and Traditional Chinese_javascript skills