Dweets awesomed by u/fufuhaaa

function u(t) {

c.width=1920 // clear the canvas
for(i=0;i<9;i++)
x.fillRect(400+i*100+S(t)*300,400,50,200) // draw 50x200 rects

} // 122/140

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    u(t) is called 60 times per second.
    t: Elapsed time in seconds.
    S: Shorthand for Math.sin.
    C: Shorthand for Math.cos.
    T: Shorthand for Math.tan.
    R: Function that generates rgba-strings, usage ex.: R(255, 255, 255, 0.5)
    c: A 1920x1080 canvas.
    x: A 2D context for that canvas.

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fufuhaaa

function u(t) {

if(c.width>568){c.width=568;}x.fillText(String.fromCodePoint(0x1F300+(Math.random()*0x130)|0),Math.random()*568,Math.random()*320);

Feb 22 2017 2:52 AM UTC

}// 131/140

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fufuhaaa

function u(t) {

x.font='50px monospace';x.fillStyle=R(255,255-t*50,t*50);x.fillText(navigator.userAgent,0+((t*5)|0)*50,125+((t*5)|0)*50);

Feb 22 2017 2:34 AM UTC

}// 121/140

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donbright

function u(t) {

c.width=900;半=450;for(i=0.0;i<360;i+=1){x.lineTo(半+C(i*t/10)*i,半*9/16+S(i*t/10)*i)};x.stroke();

Feb 22 2017 2:31 AM UTC

}// 95/140

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Show more comments…
u/lionleaf

Starts off nice looking and becomes extremely trippy and hypnotic!
u/inviso

mesmerizing
u/ilSilvano

wow that escalated quickly.
u/elanimus

someone tell me how to run this please
u/Xen

Golfed and tweeked, #2909 ;-)
u/sparr

This is a browser glitch, right? It only looks cool because the browser starts using too few segments to draw the spiral. Would be boring in a fixed browser.
u/Haabilo

@sparr Not really a glitch. The code uses lineTo as means to straw the lines. It also sets the maximum amount 5
u/Haabilo

...of the segments. Damn, I didn't think mistapping backspace on mobile would send the comment as-is...
u/ArtsyBiker1

Awesome
u/blackvitriol

welcome to time travels :)
u/hoppla1232

Sir Moire apprecetiates this
u/Freak

This is like one of those nightmares I have where everything keeps on getting faster and it scares me and I love it
u/joeytwiddle

This is for me the definitive dwitter dweet #spiral
u/geb

#background

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fufuhaaa

function u(t) {

n=255;x.fillStyle=R(n,t/8*n,t/8*n);x.rotate(.1);x.textAlign='center';x.textBaseline='middle';x.font=(2e3-t*n)+'px a';x.fillText('★',1e3,5e2)

Feb 22 2017 2:26 AM UTC

}// 140/140

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fufuhaaa

remix of d/725 by u/fufuhaaa

function u(t) {

c.width=2e3;r='';for(i=0,l=1;i<1e26;r+=i){m=i;i+=l;l=m}for(i=0;i<400;)x.fillRect((r[++i]*192+(t*1e4)/(1+r[++i]))%2e3,(r[++i]+r[++i])*10,9,9)

Feb 22 2017 1:40 AM UTC

}// 140/140

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This now uses two random digits for choosing vertical star positions, which eliminates those obvious white gaps.

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fufuhaaa

remix of d/721 by u/fufuhaaa

function u(t) {

c.width=2e3;r='';for(i=0,l=1;i<1e22;){m=i;i+=l;l=m;r+=i}for(i=0;i<400;)x.fillRect((r[++i]*192+(t*1e4)/(1+r[++i]))%2e3,(r[++i]*100),9,9);

Feb 22 2017 1:34 AM UTC

}// 136/140

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fufuhaaa

function u(t) {

c.width=2e3;r='';for(i=0,l=1;i<1e9;){m=i;i+=l;l=m;r+=i}for(i=0;i<200;)x.fillRect((r[++i]*192+(t*1e4)/(1+r[++i]))%2e3,(r[++i]*100),9,9);

Feb 22 2017 1:30 AM UTC

}// 135/140

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The Fibonacci numbers concatenated may not be the best way of generating random numbers, but it's the only short one that came to mind.

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function u(t) {

c.width=w=1920;h=1080;d=60;for(q=0;q<w;q+=d*2){for(e=0;e<h;e+=d*2){x.fillStyle=R(0,0,0,C(t+q+e));o=(d*C(t+q));x.fillRect(q+o,e-o,d+o,d+o)}};

Feb 22 2017 12:52 AM UTC

}// 140/140

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u/jon

Reminds me of the old Microsoft logo 👍

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bpierre

function u(t) {

c.width=w=1920;g=s=>0.5+S(t*s)/2;b=`C${'🤓'.repeat(g(5)*40+2)}L`;x.font=g(5)*99+99+'px s';x.fillText(b,g(2)*(w-x.measureText(b).width),480)

Feb 22 2017 12:38 AM UTC

}// 138/140

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u/sigveseb

coooooooooool
u/lionleaf

C🤓🤓🤓🤓🤓L!
u/bpierre

ha ha
u/yigitozkavci

W🤓W

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fufuhaaa

function u(t) {

x.fillStyle='hsl('+(t*9/Math.PI)*350+',100%,'+(50+S(t/5)*40)+'%)';x.fillRect(c.width/2+C(t*9)*t*25,c.height/2+S(t*9)*t*25,9+t*2,9+t*2)

Feb 22 2017 12:17 AM UTC

}// 134/140

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u/lionleaf

Awesome colors!

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