本文实例为大家分享了js实现拖拽拼图游戏的具体代码,供大家参考,具体内容如下
该游戏主要使用了一些拖拽事件,以及对数据传递的应用,直接上代码,感兴趣的可以参考
html:代码
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< div class = "box" >
< div id = "d1" class = "d1" ></ div >
< div id = "d2" class = "d1" ></ div >
< div id = "d3" class = "d1" ></ div >
< div id = "d4" class = "d1" ></ div >
< div id = "d5" class = "d1" ></ div >
< div id = "d6" class = "d1" ></ div >
< div id = "d7" class = "d1" ></ div >
< div id = "d8" class = "d1" ></ div >
< div id = "d9" class = "d1" ></ div >
</ div >
< div id = "but" >
< button id = "but1" >一键完成</ button >
< button id = "but2" >开始游戏</ button >
< button id = "but3" >看一眼原图</ button >
< div >
< img id = "yan" src = "../../图片/2222.jpg" alt = "" >
</ div >
</ div >
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css代码:
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* {
margin : 0 ;
padding : 0 ;
}
.box {
width : 312px ;
height : 312px ;
border : 3px solid #000 ;
margin : 50px auto 5px ;
font-size : 0 ;
}
.box div {
width : 100px ;
height : 100px ;
display : inline- block ;
border : 2px solid #000 ;
}
.d 1 {
background-image : url (../../图片/ 2222 .jpg);
background- size : 300px 300px ;
background-position : 0px 0px ;
}
#but {
border : 1px solid #000 transparent ;
width : 300px ;
height : 30px ;
margin : 0 auto ;
}
#but img {
width : 100px ;
height : 100px ;
float : right ;
display : none ;
}
button {
margin : 1px auto ;
border : 1px solid #000 ;
}
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js代码:
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var data = [[ '0 0' ], [ '-100px 0' ], [ '-200px 0' ], [ '0 -100px' ], [ '-100px -100px' ], [ '-200px -100px' ], [ '0 -200px' ], [ '-100px -200px' ], [ '-200px -200px' ]]
var but1 = document.getElementById( "but1" )
var but2 = document.getElementById( "but2" )
var but3 = document.getElementById( "but3" )
var yan = document.getElementById( "yan" )
var divs = document.querySelectorAll( ".d1" )
// 刚打开保持完整
for ( var i = 0; i < divs.length; i++) {
divs[i].style.backgroundPosition = data[i][0]
}
// 一键完成
but1.addEventListener( "click" , function () {
for ( var i = 0; i < divs.length; i++) {
divs[i].style.backgroundPosition = data[i][0]
}
})
// 开始游戏
but2.addEventListener( "click" , function () {
var arr = [];
var maxTimes = 9
do {
var num = Math.floor(Math.random() * 9);
if (-1 == arr.indexOf(num)) {
arr.push(num);
maxTimes--;
}
} while (maxTimes);
for ( var i = 0; i < divs.length; i++) {
const k = arr[i]
divs[k].style.backgroundPosition = data[i][0]
}
})
// 看一眼原图
but3.addEventListener( "mousedown" , function () {
yan.style.display = "block"
})
but3.addEventListener( "mouseup" , function () {
yan.style.display = "none"
})
divs.forEach( function (v, i) {
v.draggable = "true"
//开始拖拽的时候触发事件
v.addEventListener( "dragstart" , function (e) {
// console.log('666');
e.dataTransfer.setData( "newdivID" ,e.target.getAttribute( "id" ))
e.dataTransfer.setData( "newdiv" ,e.target.style.backgroundPosition)
})
// 拖拽松开的时候触发事件
v.addEventListener( "drop" , function (e) {
e.stopPropagation()
e.preventDefault()
var oldDiv = document.querySelector( "#" +e.dataTransfer.getData( 'newdivID' )) //取出并保存开始拖拽的div的id属性的div
var pos=e.dataTransfer.getData( "newdiv" ) // 取出并保存开始拖拽的div的backgroundPosition属性
oldDiv.style.backgroundPosition=e.target.style.backgroundPosition //把准备松开到的div的backgroundPosition属性值传递给取出的那个旧div
e.target.style.backgroundPosition=pos // 把取出的那个旧div的backgroundPosition属性值传递给当前准备松开到的div
})
v.addEventListener( "dragover" , function (e){
e.preventDefault()
})
})
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以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。
原文链接:https://blog.csdn.net/m0_54089303/article/details/120372327