javascript游戏(3行)行检查逻辑
javascript游戏(3行)行检查逻辑
提问于 2014-05-24 02:21:28
从昨天开始，我就一直在为解决这个问题而斗争，我担心我已经有了隧道般的视野。
游戏：
第一位玩家做出一种类型的3行(xxx或000)获胜。http://jsfiddle.net/brunobliss/YANAW/
捕获：：
只有第一条水平线起作用了！--我可以用大量的IFS使它全部工作，但是一遍又一遍地重复相同的代码常常是一个很好的指示，表明我做错了什么
问题：
Bruno.checkWin()将检查是否有一行，给我这个游戏粉笔的人告诉我，用for循环检查行是可能的，我应该使用它而不是IFS。如果没有不幸的话我解决不了这个问题..。
<!doctype html>
<html>
<head>
<meta charset="iso-8859-1">
<title> </title>
<style>
#jogo {
border: #000 1px solid;
width: 150px;
position: absolute;
left: 50%;
top: 50%;
margin-left: -75px;
margin-top: -75px;
}
#jogo div {
display: inline-block;
vertical-align: top;
width: 28px;
height: 28px;
padding: 10px;
font-size: 20px;
border: #000 1px solid;
border-collapse: collapse;
text-align: center;
}
#reset {
font-family: Verdana;
width: 153px;
height: 30px;
background-color: black;
color: white;
text-align: center;
cursor: pointer;
left: 50%;
top: 50%;
position: absolute;
margin-left: -76px;
margin-top: 100px;
}
</style>
<script> </script>
</head>
<body>
<div id="jogo"> </div>
<div id="reset"> RESET </div>
<script>
var ultimo = "0";
var reset = document.getElementById('reset');
var jogo = document.getElementById('jogo');
var cell = jogo.getElementsByTagName('div');
var bruno = {
init: function () {
var jogo = document.getElementById('jogo');
for ( i = 0 ; i < 9 ; i++ ) {
var cell = document.createElement('div');
cell.onclick = function () {
// variavel publica dentro do obj?
ultimo = (ultimo == "x") ? 0 : "x";
this.innerHTML = ultimo;
bruno.checkWin();
};
jogo.appendChild(cell);
}
},
checkWin: function () {
var jogo = document.getElementById('jogo');
var cell = jogo.getElementsByTagName('div');
// as diagonais nao verificar por loop
for ( i = 0 ; i < cell.length ; i=i+4 ) {
switch(i) {
case 0:
if (cell[0].innerHTML != '') {
bruno.checkFirst();
}
case 4:
if (cell[4].innerHTML != '') {
bruno.checkFirst();
}
case 8:
if (cell[8].innerHTML != '') {
bruno.checkFirst();
}
}
/*
} else
if (i == 4 && cell[4].innerHTML != '') {
bruno.checkCenter();
} else
if (i == 8 && cell[8].innerHTML != '') {
bruno.checkLast();
}*/
}
},
reset: function () {
var jogo = document.getElementById('jogo');
var cell = jogo.getElementsByTagName('div');
for ( j = 0 ; j < cell.length ; j++ ) {
cell[j].innerHTML = "";
}
},
checkFirst: function () {
if (cell[0].innerHTML == cell[1].innerHTML && cell[1].innerHTML == cell[2].innerHTML) {
alert("linha horizontal");
return false;
} else
if (cell[0].innerHTML == cell[3].innerHTML && cell[3].innerHTML == cell[6].innerHTML) {
alert("linha vertical");
return false;
}
},
checkMiddle: function () {
// check vertical and horizontal lines from the center
},
checkLast: function () {
// check last horizontal and right edge vertical
}
};
window.onload = function () {
bruno.init();
};
reset.onclick = function () {
bruno.reset();
};
</script>
</body>
</html>回答 1
Stack Overflow用户
回答已采纳
发布于 2014-05-24 03:25:04
我想出了一个更“紧凑”的版本你的代码。没有交换声明。看一看：http://jsfiddle.net/YANAW/1/
这是代码，给那些喜欢在这里阅读的人。重要/更新的函数是checkWin()和checkCells()。
var bruno = {
init: function () {
var jogo = document.getElementById('jogo');
for ( i = 0 ; i < 9 ; i++ ) {
var cell = document.createElement('div');
cell.onclick = function () {
// variavel publica dentro do obj?
ultimo = (ultimo == "x") ? 0 : "x";
this.innerHTML = ultimo;
bruno.checkWin();
};
jogo.appendChild(cell);
}
},
checkWin: function () {
var jogo = document.getElementById('jogo');
var cells = jogo.getElementsByTagName('div');
// Scan through every cell
var numRows = 3;
var numColumns = 3;
for (var i = 0; i < cells.length; i++)
{
// Determine cell's position
var isHorizontalFirstCell = ((i % numColumns) === 0);
var isVerticalFirstCell = (i < numColumns);
var isTopLeftCorner = (i == 0);
var isTopRightCorner = (i == 2);
// Check for horizontal matches
if (isHorizontalFirstCell
&& bruno.checkCells(
cells, i,
(i + 3), 1))
{
alert('Horizontal');
}
// Check for vertical matches
if (isVerticalFirstCell
&& bruno.checkCells(
cells, i,
(i + 7), 3))
{
alert('Vertical');
}
// Check for diagonal matches
if (isTopLeftCorner
&& bruno.checkCells(
cells, i,
(i + 9), 4))
{
alert('Diagonal');
}
if (isTopRightCorner
&& bruno.checkCells(
cells, i,
(i + 5), 2))
{
alert('Diagonal');
}
}
},
reset: function () {
var jogo = document.getElementById('jogo');
var cell = jogo.getElementsByTagName('div');
for ( j = 0 ; j < cell.length ; j++ ) {
cell[j].innerHTML = "";
}
},
checkCells: function(cells, index, limit, step) {
var sequenceChar = null;
for (var i = index; i < limit; i += step)
{
// Return false immediately if one
// of the cells in the sequence is empty
if (!cells[i].innerHTML)
return false;
// If this is the first cell we're checking,
// store the character(s) it holds.
if (sequenceChar === null)
sequenceChar = cells[i].innerHTML;
// Otherwise, confirm that this cell holds
// the same character(s) as the previous cell(s).
else if (cells[i].innerHTML !== sequenceChar)
return false;
}
// If we reached this point, the entire sequence
// of cells hold the same character(s).
return true;
}
};页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/23840728
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