Dweets awesomed by u/sigveseb

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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Current theme challenge: #Food

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larzuk

remix of d/16054 by u/larzuk

function u(t) {

c.width=w=100;for(i=0;++i<4e3;)u=i%w,v=i/w|u&i,z=-t*20+i/w,x.fillStyle=R(m=(S(z/3)*S(u)*4+u)^(C(v*2)+v*2)|0,m*4,m*2),x.fillRect(u,v,1,1)

Jun 25 2020 11:43 AM UTC

}// 136/140

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broken matrix

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magna

function u(t) {

SyntaxError: Unexpected identifier

Jun 25 2020 12:53 AM UTC

}// 34/140

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#quine

u/Irratix

This is even worse than Xen's "throw code" program. I love it.
u/tomxor

:P engine dependent, spidermonkey: SyntaxError: unexpected token: identifier token? identifier? tomato tomato
u/Xen

Lol Nice :-P

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rodrigo.siqueira

remix of d/19226 by u/rodrigo.siqueira

function u(t) {

for(i=2e3,f=(X,Y,n=59)=>Y?f(T(X)*X-Y*Y+.2,X*Y-.9,n+.4):x.fillStyle=`hsl(${n*9} 90% ${S(n)*90}%`;i--;x.fillRect(i,t*60,1,i))f(i/1e3-1,1-t/25)

Jun 24 2020 7:13 PM UTC

}// 140/140

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Icy vortex #spiral #fractal

u/Xen

Sexy!
u/tomxor

wow noice

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robbyg

function u(t) {

for(s=24,H=80;H--;)for(V=45;V--;x.fillRect(H*s,V*s,s,s))x.fillStyle=C(V-t*9)>C(V*H)?'#7be':'#36c'

Jun 24 2020 6:33 PM UTC

}// 97/140

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Reminds me of an 8-bit waterfall.

u/Xen

love it!
u/aleamb

#waterfall

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rodrigo.siqueira

remix of d/19066 by u/rodrigo.siqueira

function u(t) {

for(i=2e3,f=(X,Y,n=59)=>X<i?f(X*X-Y*Y+.2,X*Y+.9,n+1):x.fillStyle=`hsl(${n*9} 90% ${S(n/6)*n}%`;i--;x.fillRect(i,t*60,1,i))f(i/1400-1,1-t/32)

Jun 24 2020 3:15 AM UTC

}// 140/140

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Mystery #spiral

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Irratix

function u(t) {

rowAmt = 10
c=(n,k)=>k?n*c(n-1,k-1)/k:1
if(t){n=[];for(i=-1;i++<rowAmt;n[i].push("\n"))for(n[i]=[],j=-1;j++-i;n[i][j]=c(i,j)+" ");throw(n)}

Jun 23 2020 8:49 PM UTC

}// 139/140

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Pascal's Triangle. Could easily be shorter (probably)

u/Irratix

Still had a lot of room left, so I made an easily visible rowAmt variable for you to tweak :D
u/tomxor

I used this same little function recently for the intensities in simulated NMR multiplets. Pretty sure this is the shortest math.

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DataMeta

remix of d/19219 by u/DataMeta

function u(t) {

with(x)for(r=Math.random,X=r(Y=r(Z=r())),j=255;j--;fillStyle=R(X*j*4,Y*208,Z/Y/X*42,.11),beginPath(fill()))arc(2e3*r(),1080*r(),Y/r(),0,Z*7)

Jun 23 2020 6:13 PM UTC

}// 140/140

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Small tweak after playing around more. The frequency of the mode color's appearance in a given frame is constrained + more of the color gamut is taken up by tertiary colors

u/DataMeta

#art #colors #abstract

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OlegSchwann

function u(t) {

h=S(t)*128+128
x.fillStyle=R(h,h,h)
r=Math.random
x.fillRect(r()*1920,r()*1080,h,h)

Jun 23 2020 5:13 PM UTC

}// 83/140

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Xen

function u(t) {

x.fillText(2,-1,c.width=1)

Jun 23 2020 4:13 PM UTC

}// 26/140

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#Blacklivesmatter

u/DataMeta

cheeky as heck :)
u/DataMeta

✊🏻✊🏾✊🏽✊🏼✊🏿

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Xen

remix of d/19217 by u/bandaloo

function u(t) {

for(i=2e3;i--;x.fillStyle=`hsl(${i*C(t/99-i/t)},99%,${33*(S(i/(t%99))+C(S(t*9+i/3e3)))}%`)x.fillRect(i,0,1,9);x.drawImage(c,0,7)

Jun 23 2020 3:46 PM UTC

}// 128/140

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Had to Remix!

u/bandaloo

i love how this morphs over time
u/Xen

the slow glitchy lines i like

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