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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: #Food

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DataMeta

function u(t) {

h=5381;w="test";for(i=0;i<w.length;i++)h=((h<<5)+h)+w.charCodeAt(i)
throw h

Aug 1 2020 8:46 PM UTC

}// 75/140

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simple djb-like non-#crypto hash function

u/DataMeta

1000BTC to anyone who implements SHA-2 in 140 bytes ;)

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remix of d/19511 by u/IV

function u(t) {

t||c.replaceWith(g=c.cloneNode());
with(g.getContext('webgl'))(enable(3089),scissor(t,Y=t*S(t),50,Y),clearColor(0,0,0,1),clear(16384))

Jul 27 2020 4:13 PM UTC

}// 134/140

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bouncing #webgl

u/IV

drop in a t*=3; to hurry it up. change "with(g." to "with(c, " while remixing. change c back to g before posting.
u/IV

@nikiloffgeorgi
u/IV

139B: t||c.replaceWith(g=c.cloneNode());with(g.getContext('webgl'))(enable(3089),s=S(t),scissor(t,Y=s*s*t,50,Y),clearColor(0,0,0,1),clear(16384))

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ycloud

function u(t) {

c.width=999
for(i=-200;i<340;i++)
x.fillRect(-20-i*-99+C(t)*999,90,50,1000)
for(i=-200;i<300;i++)
x.fillRect(-20+i*-99+T(t)*999,90,50,1000)

Jul 27 2020 7:30 AM UTC

}// 139/140

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A old movie mechanism

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Elbereth

function u(t) {

w=c.width/8;h=c.height/2;
p=T(t+2)*99;P=T(t)*10;
x.fillStyle=R(p,p/3,p,.05);
x.font=w+"px Arial";x.fillText("    riddle iv",P,h+P);

Jul 26 2020 1:43 AM UTC

}// 131/140

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2. hJx-3vKXv + sum princeps mane et finis noctium sed non sum sol

u/IV

oooh, haz i got a brazillian virus now?
u/IV

Riddle solved, The answer is me, during most of lockdown!

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danny@hille.dk

function u(t) {

c.width=450;for(Y=32;Y--;)for(X=50;X--;)x.fillStyle=R(99*(S(X-t+Y)+C(Y*64+t)+S(t+X+S(Y*16+t))),0,S(Y-t*9)*99+99),x.fillRect(X*9,Y*9,9,9)

Jul 25 2020 12:32 AM UTC

}// 136/140

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u/andrea270872

love the retro vibe! cool
u/ximavus

awesome and #underrated

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GreenBeans

function u(t) {

x.fillRect(0,0,2e3,2e3)
x.fillStyle=R(0,0,0,.04)
for(i=1;i<999;i++){x.clearRect(950+i*C(i-t),550+i*C(t+i),9,35)}

Jul 24 2020 6:00 PM UTC

}// 112/140

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remix of d/19470 by u/IV

function u(t) {

r=Math.random;s=r()*224;w=c.width/s;h=c.height/s;
for(i=1e2;i--;)
x.fillStyle=R(s,s*r(),0,r()/2),
x.fillRect(r()*w*s,r()*h*s,s,s);

Jul 24 2020 5:32 PM UTC

}// 131/140

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from monet to klimt

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function u(t) {

t||c.replaceWith(g=c.cloneNode());
with(g.getContext('webgl'))(clearColor(C(t),0,S(t),1),clear(16384))

Jul 24 2020 3:02 AM UTC

}// 102/140

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testing remix of d/1948

u/IV

correction: remix of d/19498. The problem with this is in replacing the canvas. Any attempt at a remix will fail to get the context. But it is shortest :D
u/nikoloffgeorgi

u/IV that's really cool. i wonder if anything beyond animating the color uniformly can be done within 140 chars
u/IV

nothing you cant do better with the canvas. try this: with(c.getContext('webgl'))(enable(0x0C11),scissor(i,i,i,i),clearColor(C(t),S(t),t,1),clear(16384))
u/IV

what we need is a glitter, with a quad shader set up and then we can play with 140 chars of a fragment main
u/IV

u/nikoloffgeorgi game-on! i did this: d/19541

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nikoloffgeorgi

function u(t) {

!t&&c.parentNode.append((d=c.hidden=c.cloneNode(),b=d.getContext('webgl'),b.viewport(0,0,1,1),b.clearColor(1,0,0,1),b.clear(0x000004000),d))

Jul 22 2020 9:01 PM UTC

}// 140/140

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paint with webgl

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u/IV

a webgl that does something, and leaves 39 chars to play with
u/IV

whoops, meant to put that in the remix note, then the remox failed, bad day ;)
u/IV

here we go; https://www.dwitter.net/d/19511
u/nikoloffgeorgi

u/IV that's really cool. i wonder if anything beyond animating the color uniformly can be done within 140 chars
u/IV

This is 140 chars. If you can mix it with your moving cubes code and golf it down, youre winning! t||c.replaceWith(g=c.cloneNode());i=t|0; with(c.getContext('webgl'))(enable(0x0C11),scissor(i,i,i,i),clearColor(C(t),S(t),t,1),clear(16384))
u/IV

u/nikoloffgeorgi I did this: d/19541, (but I cant do comments properly yet) Your turn!

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DaSpider

function u(t) {

eval(unescape(escape`𪀽𛠵𛁪👨𚠨𪰽𨰮𭱩𩁴𪀽𜑥𜰩𛁡🐮𜠬𨠽𛠸𛁩🐱𝐊𩡯𬠨𦀽𛑩𞱘🁩𞱘𚰽𜐩𩡯𬠨𦐽𛑩𞱙🁩𞱙𚰽𛠲𚑻𒡚👃𚀮𜐪𚁘𚡘𚱙𚡙𛑴𚠪𜠩𚐊𦡅🐭𦀪𨠭𦐪𨠪𨐫𦠪𪀫𜰰𒡸𛡦𪑬𫁒𩑣𭀨𪰪𚀭𦀪𨐫𦐩𛱚𡐫𪠬𪠯𜠭𪰪𚀭𦀪𪀭𦐪𨐪𪀫𦠪𨠩𛱚𡐬𜰬𜰩𯐻`.replace(/u../g,'')))

Jul 21 2020 10:57 PM UTC

}// 134/140

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Iconic AppleSoft plot remastered, animated

u/DaSpider

Source code for reference: https://a2plot-remix.daspider.repl.co/dweet.… AppleSoft image: https://a2plot-remix.daspider.repl.co/apple.…