Home > Article > Web Front-end > Object-oriented implementation of a simple version of Super Mario mini-game

Object-oriented implementation of a simple version of Super Mario mini-game

一个新手Original: 2017-10-14 10:15:213141browse

Using object-oriented thinking to design a simplified version of Super Mario game characters (schematic diagram)
Object-oriented implementation of a simple version of Super Mario mini-game

Analysis of the game:
(1) See how to control mario’s position through buttons
(2) Design related objects (mario, obstacles, etc.)

Small game functions:
(1) Control mario’s movement through the keyboard;
(2) There will be a prompt message when mario hits the boundary ;
(3) Mario will prompt a message when he finds the treasure;

Emphasize the key points and provide the source code:
html code:

<!DOCTYPE html>
<html>
<head>
<link href="mario.css" type="text/css" rel="stylesheet"/>
<script language="javascript" type="text/javascript">
    function Mario(){
        this.x=0;        
        this.y=0;   
//移动 0->上 1->左 2->右 3->下
    this.move=function(direct){
        switch(direct){            
                        case 0:                //这里为了改变img的left和top，我们需要得到img元素(对象)
                var mymario=document.getElementById(&#39;mymario&#39;);                
                var top=mymario.style.top;
                top=parseInt(top.substr(0,top.length-2));                
                var left=mymario.style.left;
                left=parseInt(left.substr(0,left.length-2));
                newtop=top-10;                
                if(newtop==-10){
                    window.alert("已到达上边界");
                }                else{
                    mymario.style.top=(newtop)+"px";
                }                if(newtop==460&&left==610){
                    window.alert("mario找到宝箱啦")
                }                break;            
                case 1:                
                var mymario=document.getElementById(&#39;mymario&#39;);                
                var left=mymario.style.left;
                left=parseInt(left.substr(0,left.length-2));                
                var top=mymario.style.top;
                top=parseInt(top.substr(0,top.length-2));
                newleft=left-10;                
                if(newleft==-10){
                    window.alert("已到达左边界")
                }                else{
                    mymario.style.left=(left-10)+"px";              
                }                if(top==400&&newleft==660){
                    window.alert("mario找到宝箱啦")
                }                break;            
                case 2:                
                var mymario=document.getElementById(&#39;mymario&#39;);                
                var left=mymario.style.left;
                left=parseInt(left.substr(0,left.length-2));                
                var top=mymario.style.top;
                top=parseInt(top.substr(0,top.length-2));
                newleft=left+10;                
                if(newleft==760){
                    window.alert("已到达右边界")
                }                else{
                mymario.style.left=(left+10)+"px";  
                }                if(top==400&&newleft==570){
                    window.alert("mario找到宝箱啦")
                }                break;            
                case 3:                
                var mymario=document.getElementById(&#39;mymario&#39;);                var top=mymario.style.top;
                top=parseInt(top.substr(0,top.length-2));                
                var left=mymario.style.left;
                left=parseInt(left.substr(0,left.length-2));
                newtop=top+10;                
                if(newtop==450){
                    window.alert("已到达下边界");
                }                else{
                    mymario.style.top=(top+10)+"px";
                }                if(newtop==360&&left==610){
                    window.alert("mario找到宝箱啦")
                }                break;
        }
    }
    }    //创建Mario对象
    var mario=new Mario();//全局函数     
    也可以去掉这个全局函数直接在onclick调用对象方法mario.move();
    function marioMove(direct){
        switch(direct){            
        case 0:
                mario.move(direct);                
                break;            
        case 1:
                mario.move(direct);                
                break;            
        case 2:
                mario.move(direct);                
                break;            
        case 3:
                mario.move(direct);                
                break;
        }
    }
    
    </script>
        <title></title>
        </head>
        <body>
        <div class="gamediv">
        <img id="mymario" style="width:50px;
            left:30px;
            top:30px;
            position:absolute;
            " src="mario1.gif"/>
        <img style="width:70px;
            left:600px;
            top:400px;
            position:absolute;
            " src="box.png"/>
        </div>
        <table border="1px" class="controlcenter">
        <tr><td colspan="3">游戏键盘</td></tr>
        <tr><td>**</td><td><input type="button" value="↑" onclick="marioMove(0)"/></td><td>**</td></tr>
        <tr><td><input type="button" value="←" onclick="marioMove(1)"/></td><td>**</td><td><input type="button" value="→" onclick="marioMove(2)"/></td></tr>
        <tr><td>**</td><td><input type="button" value="↓" onclick="marioMove(3)"/></td><td>**</td></tr>
        </table>
        </body>
        </html>

.gamep {
    width:800px;
    height:500px;
    background-color:pink;
    position:absolute;
    margin-left:0px;
}
/*表格样式*/
    .controlcenter {
    width:200px;
    height:100px;
    border:1px solid silver;
    text-align:center;
    margin-top:530px;
    position:absolute;
}

The above is the detailed content of Object-oriented implementation of a simple version of Super Mario mini-game. For more information, please follow other related articles on the PHP Chinese website!

Statement：

The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Previous article：Js methods to obtain the current date and time and other operationsNext article：Js methods to obtain the current date and time and other operations

See more

Object-oriented implementation of a simple version of Super Mario mini-game

Related articles