Dweets awesomed by u/joIlyrancher

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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yonatan

remix of d/2641 by u/yonatan

function u(t) {

for(X=c.width=256;X-=2;)for(Y=148;Y-=2;x.fillStyle=`hsl(${A=(X*C(t)-Y**S(t))&(Y*C(t)+X**S(t))},${A=A*t%50+25}%,${A}%`)x.fillRect(X,Y,2,2)

Apr 28 2017 10:44 PM UTC

}// 137/140

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u/donbright

game changer
u/joeytwiddle

Wow! :D
u/yonatan

hmm, 15 FPS here and 30 on https://dweet.dwitter.net/id/2643?autoplay=1

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cantelope

remix of d/2554 by u/cantelope

function u(t) {

w=960,v=340,x.fillRect(0,0,w*2,v*4)
for(i=99;i--;)for(j=59;j--;)X=i/2-25-C(t),Y=2+S(i/5)*S(j/5+t*3),x.clearRect(w+1/j*X*w,v+Y/j*w,s=99/j,s)

Apr 22 2017 6:43 PM UTC

}// 139/140

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toxazol

function u(t) {

x.globalAlpha=.1
x.fillRect(0,0,i=w=2e3,w)
for(j=0.1;j<1;j+=0.009){
x.clearRect(w/2+.4*w*j*C(t*j*100)*C(t),w/4+.2*w*j*S(t*j*100),2/j,2/j)
}

Apr 3 2017 11:53 PM UTC

}// 140/140

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__init__

remix of d/1899 by u/tomkh

function u(t) {

for(c.width=i=1920;i--;){for(g=29,h=63&i,v=i>>6,e=g,k=20;k--;)r=T(k-t)+2-h/g,d=C(3*k+t)+1-v/g,e-=1/(d*d+r*r+.02);x.fillRect(h*g,v*g+89,e,e)}

Mar 7 2017 5:53 PM UTC

}// 140/140

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u/donbright

very nice curve effect on edges

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bligglenuber

function u(t) {

w=c.width=960;h=w/1.8;a=30;b=w*h/a
for(i=0;i<b;i++)x.lineWidth=i%t,x.strokeStyle=`hsl(${i*t},80%,50%)`,x.strokeRect(i%w*a,((i/w)|0)*a,a,a)

Mar 2 2017 2:31 PM UTC

}// 138/140

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jprctr

function u(t) {

for (i=0;i<360;i++)
x.fillStyle=R(125+S(t*C(i))*125,125+C(t+i)*125,S(t+i)*255,0.25)
x.fillRect(960+S(t*C(i))*360,540+C(t+i)*360,12,12)

Feb 24 2017 8:59 PM UTC

}// 134/140

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u/donbright

nice color choices

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Niklas

function u(t) {

l=960,k=540,j=l/2,h=k/2,q=999,c.width|=0;for(i=0;i<q;i++)a=i*2*Math.PI/q+t,v=t/99*i,x.lineTo(C(a)*(j-C(v)*j)+l,S(a)*(h-S(v)*h)+k);x.stroke()

Feb 23 2017 2:45 PM UTC

}// 140/140

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u/Woodmouth

Try waiting for a really long time, like, 5 min, it gets cool
u/joeytwiddle

Good one

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walsh9

function u(t) {

O=[],Z=z=>R(y=255*S(z/32),y,y+128);for(i=1e4;i--;)d=i%128*15,e=i/128|0,x.fillStyle=Z((S(d/64)+S(e/4)+t)*99),x.fillRect(d,e*16,16,16)

Feb 23 2017 2:55 AM UTC

}// 132/140

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u/donbright

love the color scheme
u/walsh9

whoops left some junk at the beginning. not even using that array.
u/iverjo

Beautiful
u/sigveseb

Very pretty
u/Kalanchoe

Trippy yet so relaxing

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aemkei

function u(t) {

I=t?Math.random(Y++)-1.9&I+2:Y=0;for(i=12;i--;D=X=>Y<300&&x.fillRect(900+X,s*j+G*Y+500,4,4)||X,D(-D((G=C(a=1.05*i))*j-(s=S(a))*Y)))j=i>5&&I

Feb 21 2017 9:16 AM UTC

}// 139/140

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Draws a random snowflake. Based on https://github.com/codegolf/snowflake

u/iverjo

Pretty

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BriSeven

remix of d/564 by u/BriSeven

function u(t) {

if(!t)d=X=Y=a=255.88;for(i=d|0;--i;)x.fillStyle=R(S(a)*d,C(a+t)*d,S(-a)*d,.1),x.fillRect(X=9*S(a)+X&(d*8),Y=9*C(a)+Y&(d*4),8,8),a+=C(t*i*a)

Dec 30 2016 9:51 PM UTC

}// 139/140

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it looks like if you keep an accumulator variable in a feedback loop, you can get C to produce more random looking results. (except for at the very start.)

u/BriSeven

a+=C(t*i*a)
u/iverjo

Nice. Related dweet: https://www.dwitter.net/d/291

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