js模仿人走路移动效果(51js)_js走路-优快云博客

这篇博客通过JavaScript代码展示了如何创建一个人物行走的移动效果。通过监听鼠标点击和移动事件，确定目标位置，并使用数学计算调整角色朝向和步长，使角色沿直线向目标移动。同时，代码还包括了角色自动随机移动的实现。

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<html>
<body>
<div id="debug"> </div>
<SPAN id=spn1 style="position:absolute;left=0;top=0;OVERFLOW: hidden; WIDTH: 32px; HEIGHT: 64px">
<IMG src="http://www.jiuyue.org/dreamland/rpg/unit/u_boy1.gif">
</SPAN>
<script>
//document.onmousemove=new Function("window.status=event.x+','+event.y;");
var target_posx=1,target_posy=1,theTimeout=0,theTimeout2=0;

document.onmousemove = view_pos;
function view_pos(){
window.status = event.x +","+event.y;
}

document.onclick = set_pos;
function set_pos(){

    target_posx = parseInt(event.x - 16);
    target_posy = parseInt(event.y - 64);

    clearTimeout(theTimeout);
    move();
}

function move(){
    var bc = 4;
    var a_bc = 0;
    var b_bc = 0;
    var a = 0;
    var b = 0;
    var c = 0;

    now_posx = parseInt((spn1.style.left).substr(0,(spn1.style.left).length-2));
    now_posy = parseInt((spn1.style.top).substr(0,(spn1.style.top).length-2));

    a = Math.abs(target_posx-now_posx);
    b = Math.abs(target_posy-now_posy);

    c = Math.ceil(Math.sqrt(a*a+b*b))
    //document.write("a is"+a+"<br>b is"+b+"<br>c is "+c);
    a_bc = (a/c)*bc;