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index.html
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<!--
* @Description: 2048
* @Author: CHENSHONE
* @Date: 2019-09-24 16:31:26
* @LastEditors: CHENSHONE
* @LastEditTime: 2019-09-26 19:50:02
-->
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>2048</title>
<meta name="viewport"
content="width=device-width, initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no">
<link rel="stylesheet" type="text/css" href="./css/demo.css">
</head>
<body>
<div id="wrap">
<div class="header">
<div class="title">
<span>2048</span>
</div>
<div class="scores">
<div class="nowScores">
<span class="scoreTitle">SCORE</span>
<span class="score">0</span>
</div>
<div class="bestScores">
<span class="scoreTitle">BEST</span>
<span class="score">0</span>
</div>
</div>
</div>
<div class="playGame">
<span class="word">Play 2048 Game Online</span>
<div class="btnPlay">
<span>New Game</span>
</div>
</div>
<div class="board">
<!-- 棋盘格子 -->
<div class="grid"></div>
<div class="grid"></div>
<div class="grid"></div>
<div class="grid"></div>
<div class="grid"></div>
<div class="grid"></div>
<div class="grid"></div>
<div class="grid"></div>
<div class="grid"></div>
<div class="grid"></div>
<div class="grid"></div>
<div class="grid"></div>
<div class="grid"></div>
<div class="grid"></div>
<div class="grid"></div>
<div class="grid"></div>
<!-- 棋子 -->
<div id="p00" class="pieces"></div>
<div id="p01" class="pieces"></div>
<div id="p02" class="pieces"></div>
<div id="p03" class="pieces"></div>
<div id="p10" class="pieces"></div>
<div id="p11" class="pieces"></div>
<div id="p12" class="pieces"></div>
<div id="p13" class="pieces"></div>
<div id="p20" class="pieces"></div>
<div id="p21" class="pieces"></div>
<div id="p22" class="pieces"></div>
<div id="p23" class="pieces"></div>
<div id="p30" class="pieces"></div>
<div id="p31" class="pieces"></div>
<div id="p32" class="pieces"></div>
<div id="p33" class="pieces"></div>
</div>
<div class="gameEnd" style="display: none">
<div class="content">
<span>Game Over!</span>
<div class="btn">
<div class="buttonFunction">Try again</div>
<div class="buttonFunction">Tweet</div>
</div>
</div>
</div>
</div>
<script>
window.onload = function () {
(function () {
var styleNode = document.createElement("style")
var w = document.documentElement.clientWidth / 16
styleNode.innerHTML = "html{font-size:" + w + "px!important}"
document.head.appendChild(styleNode)
})()
let container = document.querySelector("#wrap .board") // 手指滑动区域
let gameOver = document.querySelector("#wrap .gameEnd")
let playBtn = document.querySelector("#wrap .playGame .btnPlay")
let pieceSets = document.querySelectorAll('#wrap .board .pieces')
let nowScores = document.querySelector('#wrap .header .scores .nowScores .score')
let bestScores = document.querySelector('#wrap .header .scores .bestScores .score')
let againBtns = document.querySelectorAll('#wrap .gameEnd .content .btn .buttonFunction')
let data = [ // 棋盘初始化
[0, 0, 0, 0],
[0, 0, 0, 0],
[0, 0, 0, 0],
[0, 0, 0, 0]
]
let emptyGrids = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15] //空格子
let isOver // 是否结束
let moveFun = {
isMoving: false,
"left": moveLift,
"right": moveRight,
"up": moveUp,
"down": moveDown,
"refresh": refresh
} //移动后计算的函数封装
let nowScoresTxt = 0
let bestScoresTxt = 0
bestScores.innerHTML = bestScoresTxt
// 点击开始按钮 开始游戏
playBtn.onclick = function () {
playGame()
}
againBtns[0].onclick = function () {
againGame(isOver)
}
function playGame() {
nowScoresTxt = 0
nowScores.innerHTML = 0
initialize()
container.removeEventListener('touchstart', touchEvent.touchstart)
container.removeEventListener('touchmove', touchEvent.touchmove)
container.removeEventListener('touchend', direction)
// 开局随机一个空格子出现数字
randomPieces(data, emptyGrids, true)
// 手势操作
container.addEventListener('touchstart', touchEvent.touchstart)
container.addEventListener('touchmove', touchEvent.touchmove)
container.addEventListener('touchend', direction)
}
// 初始化棋盘
function initialize() {
data = [ // 棋盘初始化
[0, 0, 0, 0],
[0, 0, 0, 0],
[0, 0, 0, 0],
[0, 0, 0, 0]
]
emptyGrids = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15] //空格子
for (let i = 0; i < pieceSets.length; i++) {
pieceSets[i].className = "pieces"
pieceSets[i].innerHTML = ""
}
}
// 手势方向
function direction() {
let direction = touchEvent.touchend()
if (direction) {
let result = moveFun[direction]()
moveFun.refresh(result)
}
}
// 棋盘移动后计算函数
function moveLift() {
let num0 = 0
let copyBoard = []
emptyGrids = []
for (let i = 0; i < 4; i++) {
let newLine = []
let oldLine = data[i]
for (let j = 0; j < 4; j++) {
if (oldLine[j] !== 0)
newLine.push(oldLine[j])
}
// 向左合并相邻的相同棋子
if (newLine.length > 1) {
for (let j = 0; j < newLine.length - 1; j++) {
if (newLine[j] == newLine[j + 1]) {
nowScoresTxt += newLine[j]
newLine[j] *= 2
newLine[j + 1] = 0
j++
}
}
newLine = newLine.filter(item => item !== 0)
}
// 补全该行尾部的0
for (let j = newLine.length; j < 4; j++) {
emptyGrids.push(i * 4 + j)
newLine.push(0)
num0++
}
copyBoard[i] = newLine
}
if (num0 == 0) return -1
let ans = JSON.parse(JSON.stringify(copyBoard))
return ans
}
function moveRight() {
let num0 = 0
let copyBoard = []
emptyGrids = []
for (let i = 0; i < 4; i++) {
let newLine = []
let oldLine = data[i]
for (let j = 0; j < 4; j++) {
if (oldLine[j] !== 0)
newLine.push(oldLine[j])
}
// 向右合并相邻的相同棋子
if (newLine.length > 1) {
for (let j = newLine.length - 1; j > 0; j--) {
if (newLine[j] == newLine[j - 1]) {
nowScoresTxt += newLine[j]
newLine[j] *= 2
newLine[j - 1] = 0
j--
}
}
newLine = newLine.filter(item => item !== 0)
}
// 补全该行头部的0
let len = newLine.length
for (let j = 0; j < 4 - len; j++) {
emptyGrids.push(i * 4 + j)
newLine.unshift(0)
num0++
}
copyBoard[i] = newLine
}
if (num0 == 0) return -1
let ans = JSON.parse(JSON.stringify(copyBoard))
return ans
}
function moveUp() {
let num0 = 0
let copyBoard = []
emptyGrids = []
let board90 = [
[],
[],
[],
[]
]
for (let j = 0; j < 4; j++) {
for (let i = 0; i < 4; i++) {
board90[j].push(data[i][j])
}
}
for (let i = 0; i < 4; i++) {
let newCol = []
let oldCol = board90[i]
for (let j = 0; j < 4; j++) {
if (oldCol[j] !== 0)
newCol.push(oldCol[j])
}
// 向上合并相邻的相同棋子
if (newCol.length > 1) {
for (let j = 0; j < newCol.length - 1; j++) {
if (newCol[j] == newCol[j + 1]) {
nowScoresTxt += newCol[j]
newCol[j] *= 2
newCol[j + 1] = 0
j++
}
}
newCol = newCol.filter(item => item !== 0)
}
// 补全该列尾部的0
for (let j = newCol.length; j < 4; j++) {
emptyGrids.push(j * 4 + i)
newCol.push(0)
num0++
}
copyBoard[i] = newCol
}
if (num0 == 0) return -1
// 切换回正确的行列
for (let j = 0; j < 4; j++) {
for (let i = 0; i < 4; i++) {
board90[j][i] = copyBoard[i][j]
}
}
let ans = JSON.parse(JSON.stringify(board90))
return ans
}
function moveDown() {
let num0 = 0
let copyBoard = []
emptyGrids = []
let board90 = [
[],
[],
[],
[]
]
for (let j = 0; j < 4; j++) {
for (let i = 0; i < 4; i++) {
board90[j].push(data[i][j])
}
}
for (let i = 0; i < 4; i++) {
let newCol = []
let oldCol = board90[i]
for (let j = 0; j < 4; j++) {
if (oldCol[j] !== 0)
newCol.push(oldCol[j])
}
// 向下合并相邻的相同棋子
if (newCol.length > 1) {
for (let j = newCol.length - 1; j > 0; j--) {
if (newCol[j] == newCol[j - 1]) {
nowScoresTxt += newCol[j]
newCol[j] *= 2
newCol[j - 1] = 0
j--
}
}
newCol = newCol.filter(item => item !== 0)
}
// 补全该列头部的0
const len = newCol.length
for (let j = 0; j < 4 - len; j++) {
emptyGrids.push(j * 4 + i)
newCol.unshift(0)
num0++
}
copyBoard[i] = newCol
}
if (num0 == 0) return -1
// 切换回正确的行列
for (let j = 0; j < 4; j++) {
for (let i = 0; i < 4; i++) {
board90[j][i] = copyBoard[i][j]
}
}
let ans = JSON.parse(JSON.stringify(board90))
return ans
}
function refresh(result) {
console.log(result)
if (result == -1) return -1
let newBoard = result
for (let i = 0; i < 4; i++) {
for (let j = 0; j < 4; j++) {
if (data[i][j] !== 0) {
updateBoard(i, j, "")
}
}
}
data = newBoard
randomPieces(data, emptyGrids, false)
for (let i = 0; i < 4; i++) {
for (let j = 0; j < 4; j++) {
if (data[i][j] !== 0) {
updateBoard(i, j, data[i][j])
}
}
}
updateScore()
isOver = isGameOver()
if (isOver) {
gameOver.style = "display:block;"
}
}
// 更新分数
function updateScore() {
nowScores.innerHTML = nowScoresTxt
if (nowScoresTxt > bestScoresTxt) {
bestScoresTxt = nowScoresTxt
bestScores.innerHTML = bestScoresTxt
}
}
// 是否结束游戏
function isGameOver() {
if (data[0].indexOf(2048) != -1||data[1].indexOf(2048) != -1||data[2].indexOf(2048) != -1||data[3].indexOf(2048) != -1)
return true
if (emptyGrids.length > 0) return false
if (emptyGrids.length == 0) {
for (let i = 0; i < 4; i++) {
for (let j = 0; j < 4; j++) {
if (j < 3)
if (data[i][j] == data[i][j + 1]) {
return false
}
if (i < 3)
if (data[i][j] == data[i + 1][j]) {
return false
}
}
}
}
return true
}
// againGame
function againGame(isOver) {
isOver = !isOver
gameOver.style = "display:none;"
playGame()
}
}
</script>
</body>
<script type="text/javascript" src="./js/touch.js"></script>
<script type="text/javascript" src="js/methods.js"></script>
</html>