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η2048.html
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<!DOCTYPE html>
<html lang="ko">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>2048</title>
<style>
body {
text-align: center;
}
div {
margin: 10px;
}
#main {
margin: 0 auto;
}
button {
margin: 0;
padding: 0;
width: 80px;
height: 80px;
text-align: center;
line-height: 80px;
vertical-align: top;
border: 3px solid #BBADA0;
color: #776E65;
background-color: #CDC1B4;
}
.c2 {
font-size: 80px;
background-color: #EEE4DA;
}
.c4 {
font-size: 80px;
background-color: #E6D8CA;
}
.c8 {
font-size: 80px;
background-color: #E0CEBC;
}
.c16 {
font-size: 60px;
background-color: #D9C3AD;
}
.c32 {
font-size: 60px;
background-color: #D2B89F;
}
.c64 {
font-size: 60px;
background-color: #CBAE90;
}
.c128 {
font-size: 40px;
background-color: #C5A382;
}
.c256 {
font-size: 40px;
background-color: #BE9973;
}
.c512 {
font-size: 40px;
background-color: #B78E65;
}
.c1024 {
font-size: 30px;
background-color: #B08356;
}
.c2048 {
font-size: 30px;
background-color: #A5794C;
}
</style>
<script src="https://code.jquery.com/jquery-3.3.1.min.js" integrity="sha256-FgpCb/KJQlLNfOu91ta32o/NMZxltwRo8QtmkMRdAu8=" crossorigin="anonymous"></script>
<script>
"use strict";
var SIZE = 4;
var board_arr;
var start = false;
$(document).ready(function () {
var tmp;
board_arr = new Array(SIZE);
for (var i = 0; i < SIZE; i++)
{
board_arr[i] = new Array(SIZE);
for (var j = 0; j < SIZE; j++)
{
tmp = $('<button></button>').appendTo('#main');
board_arr[i][j] = tmp;
}
$('#main').append($('<br>'));
}
$('#main').css('width', ($('button').outerWidth() * SIZE) + 'px'); // 창 크기가 작을 때 판이 줄바꿈되는거 방지
ready();
$(document).keydown(function (e) { // 키를 눌렀을 때
if (e.keyCode < 37 || e.keyCode > 40) // 방향키가 아니면 무시
return;
if ($('#main button[class*=c]').length == 2) // 첫 돌이면
start = true;
else if (!start)
return;
var state = false;
switch (e.keyCode)
{
case 37: // 왼쪽
for (var i = 0; i < SIZE; i++)
for (var j = 0; j < SIZE; j++)
{
if (board_arr[i][j].text() == '')
continue;
for (var k = 0; k < j; k++)
{
if (board_arr[i][k].text() == '') // 비어 있으면
{
board_arr[i][k].text(board_arr[i][j].text()).addClass('c' + board_arr[i][k].text());
board_arr[i][j].text('').removeClass();
state = true;
break;
}
else if (board_arr[i][k].text() == board_arr[i][j].text()) // 같은 숫자면
{
var tmp = true;
for (var l = k + 1; l < j; l++) // 사이에 다른 숫자가 있는지 확인
if (board_arr[i][l].text() != '')
{
tmp = false;
break;
}
if (tmp)
{
board_arr[i][k].text(board_arr[i][j].text() * 2).addClass('c' + board_arr[i][k].text());
board_arr[i][j].text('').removeClass();
state = true;
break;
}
}
}
}
break;
case 38: // 위
for (var i = 0; i < SIZE; i++)
for (var j = 0; j < SIZE; j++)
{
if (board_arr[j][i].text() == '')
continue;
for (var k = 0; k < j; k++)
{
if (board_arr[k][i].text() == '') // 비어 있으면
{
board_arr[k][i].text(board_arr[j][i].text()).addClass('c' + board_arr[k][i].text());
board_arr[j][i].text('').removeClass();
state = true;
break;
}
else if (board_arr[k][i].text() == board_arr[j][i].text()) // 같은 숫자면
{
var tmp = true;
for (var l = k + 1; l < j; l++) // 사이에 다른 숫자가 있는지 확인
if (board_arr[l][i].text() != '')
{
tmp = false;
break;
}
if (tmp)
{
board_arr[k][i].text(board_arr[j][i].text() * 2).addClass('c' + board_arr[k][i].text());
board_arr[j][i].text('').removeClass();
state = true;
break;
}
}
}
}
break;
case 39: // 오른쪽
for (var i = 0; i < SIZE; i++)
for (var j = SIZE - 1; j >= 0; j--)
{
if (board_arr[i][j].text() == '')
continue;
for (var k = SIZE - 1; k > j; k--)
{
if (board_arr[i][k].text() == '') // 비어 있으면
{
board_arr[i][k].text(board_arr[i][j].text()).addClass('c' + board_arr[i][k].text());
board_arr[i][j].text('').removeClass();
state = true;
break;
}
else if (board_arr[i][k].text() == board_arr[i][j].text()) // 같은 숫자면
{
var tmp = true;
for (var l = k - 1; l > j; l--) // 사이에 다른 숫자가 있는지 확인
if (board_arr[i][l].text() != '')
{
tmp = false;
break;
}
if (tmp)
{
board_arr[i][k].text(board_arr[i][j].text() * 2).addClass('c' + board_arr[i][k].text());
board_arr[i][j].text('').removeClass();
state = true;
break;
}
}
}
}
break;
case 40: // 아래
for (var i = 0; i < SIZE; i++)
for (var j = SIZE - 1; j >= 0; j--)
{
if (board_arr[j][i].text() == '')
continue;
for (var k = SIZE - 1; k > j; k--)
{
if (board_arr[k][i].text() == '') // 비어 있으면
{
board_arr[k][i].text(board_arr[j][i].text()).addClass('c' + board_arr[k][i].text());
board_arr[j][i].text('').removeClass();
state = true;
break;
}
else if (board_arr[k][i].text() == board_arr[j][i].text()) // 같은 숫자면
{
var tmp = true;
for (var l = k - 1; l > j; l--) // 사이에 다른 숫자가 있는지 확인
if (board_arr[l][i].text() != '')
{
tmp = false;
break;
}
if (tmp)
{
board_arr[k][i].text(board_arr[j][i].text() * 2).addClass('c' + board_arr[k][i].text());
board_arr[j][i].text('').removeClass();
state = true;
break;
}
}
}
}
break;
}
if (state) // 변화가 없으면 무시
go();
return;
});
$('input[value="초기화"]').click(function () { // 초기화 버튼을 눌렀을 때
$('#main').slideToggle('slow', function () {
$('#main button').removeClass();
$('#main button').empty();
start = false;
ready();
return;
}).slideToggle('slow');
return;
});
$('html').on('dblclick', function () {
$('body').css('visibility', ($('body').css('visibility') == 'hidden') ? 'visible' : 'hidden');
return false;
});
return;
});
function each2(arr, fn) // 이중 for문을 탐색하는 each 함수, fn에서 false를 반환하면 탐색 취소
{
var tmp = false;
$.each(arr, function (index1, item1) {
if (tmp)
return;
$.each(item1, function (index2, item2) {
if (tmp)
return;
tmp = (fn(index1, item1, index2, item2) === false) ? true : false;
return;
});
return;
});
return;
}
function ready()
{
var i, j;
for (var k = 0; k < 2; k++)
{
do
{
i = Math.floor(Math.random() * SIZE);
j = Math.floor(Math.random() * SIZE);
} while (board_arr[i][j].text() != '');
board_arr[i][j].text('2').addClass('c2');
}
return;
}
function go()
{
function check() // 움직일 수 있는지 체크
{
for (var i = 0; i < SIZE; i++)
for (var j = 0; j < SIZE; j++)
{
if (board_arr[i][j].text() == '')
return true;
if (board_arr[i][j + 1] != undefined && board_arr[i][j].text() == board_arr[i][j + 1].text())
return true;
if (board_arr[i + 1] != undefined && board_arr[i][j].text() == board_arr[i + 1][j].text())
return true;
}
return false;
}
var tmp = 0; // 이진수, 1: 빈곳있음, 10: 2048
each2(board_arr, function (index1, item1, index2, item2) {
if (item2.text() == '')
tmp |= 1;
else if (item2.text() == '2048')
tmp |= 2;
return;
});
if ((tmp & 1) != 0) // 빈 곳이 있으면
{
var i, j; // 새로운 숫자 배치
do
{
i = Math.floor(Math.random() * SIZE);
j = Math.floor(Math.random() * SIZE);
} while (board_arr[i][j].text() != '');
if (Math.floor(Math.random() * 10) > 1)
board_arr[i][j].text('2').addClass('c2'); // 90%
else
board_arr[i][j].text('4').addClass('c4'); // 10%
}
if (!check()) // 움직일 수 없으면
{
alert('실패!!!');
start = false;
return;
}
else if ((tmp & 2) != 0) // 2048을 완성하고도 움직일 수 있으면
{
alert('클리어!!!');
start = false;
return;
}
return;
}
</script>
</head>
<body>
<div>
<input type="button" value="초기화">
</div>
<div id="main"></div>
</body>
</html>