直入正题，用JS实现一个简单的打地鼠游戏
因为功能比较简单就直接裸奔JS了，先看看效果图，或者 在线玩玩
如果点击颜色比较深的那个（俗称坏老鼠），将扣分50；如果点击颜色比较浅的那个（俗称好老鼠），将得分100
实现
老鼠好像有点难画，又不想用图片，就直接用CSS画个简单的图代表老鼠和坑吧
html结构
挺简单，用9个 li 标签代表坑，用9个 div 标签代表老鼠
<div class="container">
<h4>无聊打打地鼠</h4>
<div class="game-top">
<p><input type="button" value="开始游戏" id="game-start"><p>
<p>得分：<span id="game-score">0</span></p>
<p>剩余时间：<span id="game-time">60</span> s</p>
</div>
<div class="game-content">
<ul>
<li><div></div></li>
<li><div></div></li>
<li><div></div></li>
<li><div></div></li>
<li><div></div></li>
<li><div></div></li>
<li><div></div></li>
<li><div></div></li>
<li><div></div></li>
</ul>
</div>
</div>CSS的实现
有点小技巧
对于坑，加个box-shadow: ... inset 美化一下样式
.game-content li {
float: left;
margin-top: 50px;
margin-left: 30px;
width: 100px;
height: 50px;
border-radius: 50%;
background-color: #67d0b4;
box-shadow: 0 0 50px #706565 inset;
}对于老鼠，用 border-radius：50%/40%
.game-content div {
position: relative;
margin-top: -15px;
margin-left: 25px;
width: 50px;
height: 70px;
border-radius: 50%/40%;
background-color: #dfb25d;
opacity: 0;
}而要让老鼠动起来，这里的处理方式就是用动画了，老鼠运动的时候，先往上再往下即可，控制好相对位置看起来和谐一点就行
@keyframes mouse-move {
50% {
margin-top: -40px;
opacity: 1;
}
100% {
margin-top: -15px;
opacity: 0;
}
}
.game-content div.active {
animation: mouse-move 2s ease-in-out infinite;
}注意 animation: ... infinite
不然的画，会发现动画完成了再也无法让它继续进行了
点击的是好老鼠还是坏老鼠，应该给出提示如：
可以直接用CSS的伪元素::after置入对错，在点击的时候，根据不同的性质设置不同的值及颜色
.game-content div.good {
background-color: #dfb25d;
}
.game-content div.good[clicked="1"]::after {
content: "✓";
line-height: 70px;
font-size: 40px;
color: #0ad845;
}
.game-content div.bad {
background-color: #a48f5c;
}
.game-content div.bad[clicked="1"]::after {
content: "✕";
line-height: 70px;
font-size: 40px;
color: #db1536;
}
1 .container {
2 width: 500px;
3 height: 300px;
4 margin: 50px auto;
5 border: 1px solid #ddd;
6 text-align: center;
7 }
8
9 .game-top {
10 padding-top: 10px;
11 width: 100%;
12 height: 90px;
13 }
14 .game-top p {
15 margin: 5px;
16 }
17
18 .game-content {
19 overflow: auto;
20 width: 100%;
21 border-top: 1px solid #ddd;
22 background-color: #ddf;
23 }
24
25 .game-content ul {
26 list-style: none;
27 }
28 .game-content li {
29 float: left;
30 margin-top: 50px;
31 margin-left: 30px;
32 width: 100px;
33 height: 50px;
34 border-radius: 50%;
35 background-color: #67d0b4;
36 box-shadow: 0 0 50px #706565 inset;
37 }
38 .game-content li:last-child {
39 margin-bottom: 50px;
40 }
41
42 .game-content div {
43 position: relative;
44 margin-top: -15px;
45 margin-left: 25px;
46 width: 50px;
47 height: 70px;
48 border-radius: 50%/40%;
49 background-color: #dfb25d;
50 opacity: 0;
51 }
52
53 .game-content div.good {
54 background-color: #dfb25d;
55 }
56 .game-content div.good[clicked="1"]::after {
57 content: "✓";
58 line-height: 70px;
59 font-size: 40px;
60 color: #0ad845;
61 }
62
63 .game-content div.bad {
64 background-color: #a48f5c;
65 }
66 .game-content div.bad[clicked="1"]::after {
67 content: "✕";
68 line-height: 70px;
69 font-size: 40px;
70 color: #db1536;
71 }
72
73 @media screen and (max-width: 500px) {
74 .container {
75 width: 290px;
76 }
77 .game-content ul {
78 padding: 0;
79 }
80 .game-content li {
81 margin-left: 5px;
82 width: 90px;
83 }
84 .game-content div {
85 margin-left: 20px;
86 }
87 }
88
89 @-webkit-keyframes mouse-move {
90 50% {
91 margin-top: -40px;
92 opacity: 1;
93 }
94 100% {
95 margin-top: -15px;
96 opacity: 0;
97 }
98 }
99 @keyframes mouse-move {
100 50% {
101 margin-top: -40px;
102 opacity: 1;
103 }
104 100% {
105 margin-top: -15px;
106 opacity: 0;
107 }
108 }
109
110 .game-content div.active {
111 -webkit-animation: mouse-move 2s ease-in-out infinite;
112 animation: mouse-move 2s ease-in-out infinite;
113 }完整CSS
JS的处理
逻辑是点击开始游戏，倒计时开始，同时好坏老鼠不断运动，控制好坑中好坏老鼠及其数量的随机性，点击好老鼠加分，点击坏老鼠减分，时间到结束游戏。
先看看老鼠的运动
// 运动操作
moveUpAndDown: function() {
var that = this;
// 定时器随机定义good|bad老鼠个数，以及需要显示的个数
that.moveTime = setInterval(function() {
for (var i = 0, j = that.mouses.length; i < j; ++i) {
that.mouses[i].setAttribute('clicked', '0');
that.mouses[i].className = 'good active';
that.mouses[i].style.display = 'none';
}
// bad 的个数
var badNum = that.getRandom(0, 8);
for (var i = 0; i < badNum; i++) {
that.mouses[that.getRandom(0, 8)].className = 'bad active';
}
// 要显示的个数
var showNum = that.getRandom(0, 8);
for (var i = 0; i < showNum; i++) {
that.mouses[that.getRandom(0, 8)].style.display = 'block';
}
}, 2000);
},使用定时器，定时器的循环与CSS中的动画设置一致，保证循环连贯性
设置class为good 即可定义出一只好老鼠，同理bad
在开始游戏，进行调用时，设置class为active 即可让老鼠运动起来
对于打老鼠的操作，要注意到只有运动的老鼠才能点击，每只老鼠只能点击一次
// 打地鼠操作
that.mousesWrap[0].addEventListener('click', function(e) {
e = e || window.event;
var elem = e.target || e.srcElement;
// 如果当前项被隐藏则不操作，多次点击只取第一次分数
if (elem.style.display !== 'block' || elem.getAttribute('clicked') === '1') {
return;
}
// 扣分
if (elem.className.indexOf('bad') !== -1) {
that.score -= that.badScore;
}
// 加分
else {
that.score += that.goodScore;
}
elem.setAttribute('clicked', '1');
that.text(that.gameScore[0], that.score);
}, false);倒计时结束之后，清除两个计时器，同时将所有老鼠项display都设为none
// 倒计时，当前剩余游戏时间
countDown: function() {
var that = this;
var t = setInterval(function() {
that.text(that.gameTime[0], --that.totalTime);
if (that.totalTime === 0) {
clearInterval(t);
clearInterval(that.moveTime);
for (var i = 0, j = that.mouses.length; i < j; ++i) {
that.mouses[i].style.display = 'none';
}
alert('游戏结束，得分为：' + that.score);
}
}, 1000);
},
1 function MouseGame() {
2 this.mousesWrap = this.$('.game-content');
3 this.mouses = this.$('.game-content div');
4 this.gameStart = this.$('#game-start');
5 this.gameTime = this.$('#game-time');
6 this.gameScore = this.$('#game-score');
7 this.goodScore = 100;
8 this.badScore = 50;
9
10 this.bindEvent();
11 }
12
13 MouseGame.prototype = {
14 constructor: MouseGame,
15
16 /**
17 * 获取元素
18 * @param {String} elem 元素的字符串标识
19 * @example
20 * $('div') | $('p.active')
21 * @return {NodeList} 获取的元素集
22 */
23 $: function(elem) {
24 return document.querySelectorAll(elem);
25 },
26
27 /**
28 * 获取给定范围的随机数
29 * @param {Number} from 起始
30 * @param {Number} to 结束
31 * @return {Number} 随机数
32 */
33 getRandom: function(from, to) {
34 return Math.floor(Math.random() * (to - from + 1)) + from;
35 },
36
37 /**
38 * 设置元素内容
39 * @param {HTMLElement} elem 要设置的元素
40 * @param {String} val 设置的内容
41 * @return {String} 设置好的内容|元素本身的内容
42 */
43 text: function(elem, val) {
44 if (elem.textContent) {
45 return val !== undefined ? elem.textContent = val : elem.textContent;
46 } else if (elem.innerText) {
47 return val !== undefined ? elem.innerText = val : elem.innerText;
48 }
49 },
50
51 // 运动操作
52 moveUpAndDown: function() {
53 var that = this;
54
55 // 定时器随机定义good|bad老鼠个数，以及需要显示的个数
56 that.moveTime = setInterval(function() {
57
58 for (var i = 0, j = that.mouses.length; i < j; ++i) {
59 that.mouses[i].setAttribute('clicked', '0');
60 that.mouses[i].className = 'good active';
61 that.mouses[i].style.display = 'none';
62 }
63
64 // bad 的个数
65 var badNum = that.getRandom(0, 8);
66 for (var i = 0; i < badNum; i++) {
67 that.mouses[that.getRandom(0, 8)].className = 'bad active';
68 }
69
70 // 要显示的个数
71 var showNum = that.getRandom(0, 8);
72 for (var i = 0; i < showNum; i++) {
73 that.mouses[that.getRandom(0, 8)].style.display = 'block';
74 }
75 }, 2000);
76 },
77
78 // 打地鼠操作
79 bindEvent: function() {
80 var that = this;
81
82 // 监听游戏开始/重新开始
83 that.gameStart[0].addEventListener('click', function() {
84 that.startGame();
85 }, false);
86
87 // 打地鼠操作
88 that.mousesWrap[0].addEventListener('click', function(e) {
89 e = e || window.event;
90 var elem = e.target || e.srcElement;
91 // 如果当前项被隐藏则不操作，多次点击只取第一次分数
92 if (elem.style.display !== 'block' || elem.getAttribute('clicked') === '1') {
93 return;
94 }
95 // 扣分
96 if (elem.className.indexOf('bad') !== -1) {
97 that.score -= that.badScore;
98 }
99 // 加分
100 else {
101 that.score += that.goodScore;
102 }
103
104 elem.setAttribute('clicked', '1');
105 that.text(that.gameScore[0], that.score);
106 }, false);
107 },
108
109 // 倒计时，当前剩余游戏时间
110 countDown: function() {
111 var that = this;
112
113 var t = setInterval(function() {
114 that.text(that.gameTime[0], --that.totalTime);
115
116 if (that.totalTime === 0) {
117 clearInterval(t);
118 clearInterval(that.moveTime);
119
120 for (var i = 0, j = that.mouses.length; i < j; ++i) {
121 that.mouses[i].style.display = 'none';
122 }
123
124 alert('游戏结束，得分为：' + that.score);
125 }
126 }, 1000);
127 },
128
129 // 开始游戏
130 startGame: function() {
131 this.score = 0;
132 this.totalTime = 60;
133 this.text(this.gameTime[0], this.totalTime);
134 this.text(this.gameScore[0], this.score);
135
136 this.countDown();
137 this.moveUpAndDown();
138 }
139 };
140
141 new MouseGame();完整JS
代码有注释应该不难看懂了
那么..快来fork吧..
[-_-]眼睛累了吧，注意劳逸结合呀[-_-]
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