Question

我正致力于构建这个太空项目，我发现这个真正令人惊叹的代码片段让你看起来像是在以翘曲的速度进行。

我试图理解它是如何写的，但我无法绕过它。我想调整一下，这样明星们看起来并不像他们会来到你身边而是远离你。它可能只是对一条线的简单修改，但我似乎无法找到它。任何人都可以提供帮助，看看代码应该如何进行调整吗？

＆＃13;

<body>
    <canvas id="warpspeedcanvas"></canvas>

    <script>
    Docu = document;
    documargin = Docu.body.style;
    documargin.margin = 0;
    documargin.overflow = "hidden";
    warpspeedcanvas = window, documargin = warpspeedcanvas.innerWidth, FTL = warpspeedcanvas.innerHeight, g = Docu.body.children[0], i = documargin / 2, j = FTL / 2;
    g.width = documargin;
    g.height = FTL;
    FTLk = g.getContext("2d");
    FTLk.globalAlpha = 0.3;
    FTLmath = Math, m = FTLmath.random, n = FTLmath.sin, o = FTLmath.floor, stars = 20, q = [], r = 0, warpspeed = 0.2, volume = 500, W = 1000, Q = 0.3;

    function FTLplacement(a) {
        var f = 0;
        if (a.detail) f = -a.detail / 3;
        else f = a.wheelDelta / 120;
        if (f > 0 && warpspeed < 1 || f < 0 && warpspeed + f / 25 > 0.1) warpspeed += f / 25
    }

    function FTLunits(a) {
        a.x = (m() * documargin - documargin * 0.5) * stars;
        a.y = (m() * FTL - FTL * 0.5) * stars;
        a.a = stars;
        a.b = 0;
        a.warpspeedcanvas = 0
    }
    for (var ii = 0, w; ii < volume; ii++) {
        w = {};
        FTLunits(w);
        q.push(w)
    }
    setInterval('FTLk.fillStyle="#000";FTLk.fillRect(0,0,documargin,FTL);for(a=i-documargin/2+documargin/2,f=j-FTL/2+FTL/2,h=0;h<volume;h++){b=q[h],x=b.x/b.a,y=b.y/b.a,z=1/b.a*5+1,A=n(Q*h+r)*64+W,B=n(Q*h+2+r)*64+W,warpspeedcanvas=n(Q*h+4+r)*64+W;if(b.b!=0){FTLk.strokeStyle="rgb("+o(A)+","+o(B)+","+o(warpspeedcanvas)+")";FTLk.lineWidth=z;FTLk.beginPath();FTLk.moveTo(x+a,y+f);FTLk.lineTo(b.b+a,b.warpspeedcanvas+f);FTLk.stroke()}b.b=x;b.warpspeedcanvas=y;b.a-=warpspeed;if(b.a<warpspeed||b.b>documargin||b.warpspeedcanvas>FTL)FTLunits(b)}r+=0.1;', 25);
    </script>
</body>

＆＃13;

扭转动画运动

0 个答案: