Dweets awesomed by u/ssg

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.

Try the new frontend: beta.dwitter.net
Current theme challenge: #ScaryMovies

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danny@hille.dk

remix of d/21403 by u/danny@hille.dk

function u(t) {

w=c.width=58;for(i=2e3;i--;)x.fillRect(X=i%w,Y=i/w,C(Y/9-t/2)+S(X/19-t),S(Y/16+t/2)+C(X/16+t))

Jan 23 2021 6:24 PM UTC

}// 94/140

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Smoke and lasers remix

u/Xen

nicely

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rodrigo.siqueira

remix of d/21330 by u/rodrigo.siqueira

function u(t) {

for(i=3e3,f=g=>i*g(i*i+t)*g(i/t)**.3;i--;x.fillRect(960+f(C),800-f(S),9/t,9/t))x.fillStyle=`hsl(${120+(k=S(i*i+t/5)*340)},99%,${k/4}%,.1`

Jan 21 2021 6:48 AM UTC

}// 137/140

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Turner's sunrise

u/magna

WOW
u/tomxor

Increadible!
u/tomxor

#art
u/aemkei

A Monet!
u/rodrigo.siqueira

#monet

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nystrand

remix of d/7333 by u/Batrachus

function u(t) {

with(x)for(i=d=c.width=200;j=i--/d;fillStyle=R(d+i,d/j,arc(99+(i-79)*S(T(t)),S(3*j+S(t*7)/4)*75,j>.9?5:30*S(3*j+.3),0,7),fill()))beginPath()

Mar 19 2018 6:13 PM UTC

}// 140/140

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Remix of original and inspired by d/7372 by u/joeytwiddle

Show more comments…
u/yonatan

that's a damn fine banana!
u/sigveseb

Rockin'!
u/magna

WOOOOT!
u/joeytwiddle

very nice :D
u/aleamb

Dayyyy o! daaaay o! Come, Mister Tally Man, tally me bananaaaaa
u/Renaud___

wow :)
u/CtrlAltCuteness

That 'with' statement does have use here. Just hope it never conflicts with other needed functions.
u/joeytwiddle

#banana
u/vain

Great! How do you guys get the algos for such amazing fake 3d bananas? :)

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jylikangas

function u(t) {

for(X=c.width=450;X--;x[f](X%50*5+t%23*9,0,3,X))x[f='fillRect'](X-X%5*25,99+S(X*5)*5-(h=9*S(X%64/16))+(X>>6)*25%50,1,h*2)&x[f](X*2,50+h,9,1)

Mar 17 2018 8:47 AM UTC

}// 140/140

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Scanimation Fish

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u/Lynext

Genius!
u/magna

If some technique exists, there's a dweet version of it.
u/sigveseb

this is so impressive :)
u/sigveseb

https://www.youtube.com/watch?v=LCIsIfEOEI8 some more inspiration for other dweets perhaps!
u/iverjo

#fish
u/aleamb

#scanimation
u/pythech

blew my brains out
u/rep_movsd

#illusion
u/rep_movsd

#underrated
u/vain

this blow me away! How...? O.o

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magna

remix of d/2604 by u/magna

function u(t) {

for(i=c.width=w=192;i--;)for(j=w;j--;!!('ưưƠƀÃÇÏÏ'.charCodeAt(j&7^f*7)-w&1<<(i%8^(X+Y&1)*7))^f&&x.fillRect(i,j,1,1))X=i>>3,Y=j>>3,f=t*X/Y&1

Apr 26 2017 10:17 PM UTC

}// 139/140

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Filled truchet tiles, now animated thanks to shaving by @donbright

u/donbright

the thing that strikes me is the black and white balls never move, only their connections.... but it looks like the whole plane is aliv
u/magna

@donbright To achieve that: Starting with a single tile, every other tile is flipped on the X axis. And then to flip a tile, I need to both invert the tile's pixels and also to flip it on the Y axis. Lots of XOR was needed :)
u/sigveseb

Excellent
u/iverjo

#dots
u/magna

#truchet

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magna

function u(t) {

w=c.width|=0;x.fillRect(0,0,w,w);x.clearRect(100,470,1720,140);x.fillRect(110,480,1700,120);x.clearRect(120,490,(1-1/(1+t/10))*1680,100)

Apr 26 2017 4:56 AM UTC

}// 136/140

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fr-0140

u/joeytwiddle

hehe
u/magna

#farbrausch

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magna

remix of d/2516 by u/magna

function u(t) {

c.width|=0
x.font='50px monospace';
((u+'').slice(0,t*3+S(t)*5)+' |'[t*2&1]).split('\n').map((r,i)=>x.fillText(r,0,++i*50))

Apr 18 2017 12:29 PM UTC

}// 123/140

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Slimmer version of "pair programming nightmare"

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u/magna

Challenge: Add occasional mistakes like skipped characters / typos etc.
u/Polyducks

I'm struggling to understand how this works. Where have you got the function input from? Amazingly realistic!
u/Jenky

It's from (u+'') - afaik, it's basically a short/cheat way of converting anything to a string in JS :D
u/Jenky

Also, down to 119 and whole string within canvas - https://www.dwitter.net/d/2524
u/magna

@Jenky Nice!
u/magna

#quine

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magna

remix of d/2462 by u/magna

function u(t) {

c.width=w=255
t?x.drawImage(k=b[n++&7],0,0)+k.getContext('2d').fillText('🌍',n%w-9,n/5+S(t)*99&w):b=Array(8).fill(n=0).map(_=>c.cloneNode())

Apr 10 2017 4:39 AM UTC

}// 139/140

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Infinite Worlds

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magna

remix of d/2451 by u/cantelope

function u(t) {

x.fillRect(0,0,(w=960)*2,w*2)
for(i=99;i--;p=i/5+t,x.clearRect(w+1/(Z=3+C(p))*(i-50)*w/20,540+S(p)/Z*w,s=199/Z/Z,s))x.globalAlpha=.1

Apr 9 2017 6:01 AM UTC

}// 132/140

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u/cantelope

nice! :)

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nystrand

function u(t) {

for(O=c.width|=Z=A=27;A--;O=.9+C(t)/Z)x.fillStyle=R(x.scale(A?O:1,A?O>1?Z:1.03:-O),Z,4*A,.2),x.fillText(u,A<2?M=7-t*4:-66,A<2?A*Z-18-S(M):Z)

Apr 7 2017 8:41 PM UTC

}// 140/140

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u/magna

I was expecting this to happen one day...
u/magna

Wait. How the hell are you rendering the "ground"? I don't get it. Explanation please.
u/nystrand

It's the "(O" chars at the beginning of the code decreasingly scaled down from the large initial scale. I had to find a variable name that "looked good", - went with O which made coding confusing as it looks like a zero :)
u/magna

This is nuts!
u/joeytwiddle

#quine

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