如何用js寫一個簡單的迷宮和打地鼠遊戲

時間 2020-10-26

標籤 javascript css html java git 編程 ide 函數 this 欄目 JavaScript 简体版

原文原文鏈接

最近在學JavaScript，就用學的知識寫了兩個充滿童年回憶的小遊戲--迷宮和打地鼠，如今讓咱們一塊兒來看看怎麼實現吧~javascript

1.簡單迷宮

這是一個不能再簡單的迷宮了，遊戲規則：從迷宮中走到終點就贏了；碰牆就輸；從地圖外走到終點算做弊。S爲起點，E爲終點。
css

完整HTML代碼html

<!DOCTYPE html>
<html lang="zh-cn">
<head>
    <title>The Amazing Mouse Maze</title>
    <meta charset="utf-8">
    <script src="maze.js" type="text/javascript"></script>
    <link rel="stylesheet" type="text/css" href="maze.css">
</head>

<body>
    <h1>The Amazing Mouse Maze</h1>
    <p>
        Move your mouse over the "S" to begin.
    </p>
    <div id="result"></div>
    <div id="wholeMaze">
        <div id="firstRow" class="wall"></div>



        <div id="middle">
            <div id="one" class="wall"></div>
            <div id="two" class="wall"></div>
            <div id="three" class="wall"></div>
            <div id="start">S</div>
            <div id="end">E</div>

        </div>

        <div id="lastRow" class="wall"></div>

    </div>

    <p class="info">The object of this game is to guide the mouse cursor through the start area and get to the end
        area.Be
        sure to avoid the walls.
    </p><br /><br />
    <div id="block"></div>
    <p class="info">Good luck!</p>
</body>

</html>

css代碼java

h1,p{
    text-align: center;
}

#wholeMaze{
    position: relative;
    top: 12px;
    height: 300px;
    width: 500px;
    margin: auto;
}
#result{
    text-align: center;
    font-size: 20px;
    height: 20px;
}
#firstRow{
    width: 100%;
    height: 50px;
    margin: 0;
}
.wall{
    border: 1px solid black ;    
    float: left;
    background-color: #EEEEEE;
}


#middle{
    margin: 0;
    width: 100%;
    height: 198px;
}
#one{
    position: relative;
    top: -1px;
    width: 148px;
    height: 148px;
    margin-right: 0;
    border-top: 1px solid #EEEEEE ;   
}
#two{
    position: relative;
    left: 50px;
    width: 100px;
    height: 145px;
    top: 41px;
    margin: 0;
    border-bottom: 1px solid #EEEEEE ;   
    z-index:2;/*用於覆蓋*/
}
#three{
    position: relative;
    left: 100px;
    top: -1px;
    width: 148px;
    height: 148px;
    border: 0 1px 1px 1px;
    margin: 0;
    border-top: 1px solid #EEEEEE ;   
}
#start{
    line-height: 30px;
    text-align: center;
    position: relative;
    float: left;
    font-weight: bold;
    font-size: 20px;
    height: 30px;
    width: 30px;
    left: -402px;
    top: 152px;
    border: 1px solid black;

    background-color:#83FF82;

}
#end{
    line-height: 30px;
    text-align: center;
    position: relative;
    float: left;
    font-weight: bold;
    font-size: 20px;
    height: 30px;
    width: 30px;
    left: 36px;
    top: 152px;
    background-color: #8784FF;
    border: solid black 1px;
}
#lastRow{
    position: relative;
    top: 37px;
    width: 100%;
    height: 48px;
    margin: 0;
    z-index: 1;
}

.info{
    position: relative;
    top: 20px;
    text-align: left;
    width: 600px;
    margin: auto;
}
#block{
    width: 100px;
    height: 25px;
    margin: auto;
    background-color: #EEEEEE;
    border: 1px solid black;
}

js代碼git

var isStart = false;
var isInMap = false;
window.onload = function () {
    var wall = document.getElementsByClassName("wall");
    /*start */
    document.getElementById("start").addEventListener("mouseover", function () {
        document.getElementById("result").textContent = "";
        isStart = true;
        isInMap = true;
        for (var i = 0; i < wall.length; i++) { wall[i].style.backgroundColor = "#EEEEEE"; }

    })

    /*out of the map */
    document.getElementById("wholeMaze").addEventListener("mouseleave", function () {
        isInMap = false;
    });
    /*wall */
    for (var i = 0; i < wall.length; i++)
        wall[i].addEventListener("mouseover", function (event) {
            if (isStart) {
                event.target.style.backgroundColor = "#FF0000";
                document.getElementById("result").textContent = "You hit the wall, lost the game!";
                isStart = false;
            }
        });
    for (var i = 0; i < wall.length; i++)
        wall[i].addEventListener("mouseleave", function (event) {
            event.target.style.backgroundColor = "#EEEEEE";
        });
    /*end */
    document.getElementById("end").addEventListener("mouseover", function () {
        if (isStart) {
            if (isInMap) { document.getElementById("result").textContent = "Congratulation! You win the game!"; }
            else {
                document.getElementById("result").textContent = "Oh, my friend, please don't cheat!";
                isStart = false;
            }
        }
        isStart = false;
    });
}

js部分的關鍵在於給元素添加Listener，至關於附加個觸發器，一旦事件發生如「mouseleave」(鼠標離開對應元素區域)就調用對應的函數。另外注意面向對象編程。編程

2.打地鼠

這個遊戲比較複雜，也比較有意思，加上了計時和計分功能，還能夠控制遊戲的開始和結束並顯示遊戲狀態。遊戲結束時彈出結果。
遊戲規則：打中地鼠加一分，打錯扣一分，不打分不變，玩家能夠挑戰30秒內能打中多少隻地鼠。(拼手速的時刻到了~)

因爲代碼有點長，這裏小編就不附上了。詳見：https://gitee.com/Hometown2020/moleide