Dweets awesomed by u/CaptainMeat

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: #Opposites

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ArthurThuczsec

remix of d/25489 by u/WasifBoomz

function u(t) {

x.ellipse(9,9,t*2e3,2e3,!x.stroke(),t,0)

May 14 2022 4:03 AM UTC

}// 40/140

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thoughty

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taupelink

remix of d/25493 by u/taupelink

function u(t) {

for(k=300,m=t?0:5e4;m--;x.stroke())x.beginPath(r=m**(m%(5/9))),i=m%k,x.lineWidth=r/i/20,x.arc(m%8*k+r*C(m),(m>>3)%5*k+r*S(m),r,m,m+m%6/3+.1)

May 13 2022 8:40 PM UTC

}// 140/140

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d/25494

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taupelink

remix of d/25492 by u/taupelink

function u(t) {

for(k=300,m=t?0:2e4;m--;x.fill())x.beginPath(x.fillStyle=R(r=m**(m%.75),i=m%k/.9,r+i,r/i/4)),x.arc(m%8*k+r*C(m),(m>>3)%5*k+r*S(m),r,m,m-m%4)

May 13 2022 6:53 PM UTC

}// 140/140

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d/25493

u/taupelink

Note: This dweet looks different on different browsers.You may see a blank column on the left edge and just to the right of center. Those were not there when I composed the dweet on iOS. They can be eliminated by replacing m-m%4 at the end with m-m%4+(m%4?0:7)
u/taupelink

I think what's happening is, different environments interpret arc differently in case the start and end angles are the same. In iOS, a full circle is drawn (which is what I intended). Elsewhere, nothing is drawn (hence the white columns you may be seeing).
u/pavel

As far as I know it is just Safari that has a bug with arc, where the two angle terms do not simply get %(2*pi) treatment. If the angles are sufficiently large, like 10pi-ish, the arc breaks and draws weird lines. So you have to ensure the angles are small manually :/
u/taupelink

well, the question here is what happens when the angle difference is zero? I suspect this is another quirk of Safari/iOS: when the angle is zero, it defaults to drawing a full circle.

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ArthurThuczsec

remix of d/25486 by u/ArthurThuczsec

function u(t) {

with(x)fillStyle=`hsl(${t*99} 99%30%`,drawImage(c,!fillRect(789+Math.random()*469,!fillRect((T(Date.now()*T(t**t))%1+1)/2*469,9,9,9),9,9),9)

May 12 2022 5:00 PM UTC

}// 140/140

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Visual: random Vs faux random: (T(Date.now()*T(t**t))%1+1)/2

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katkip

remix of d/25483 by u/katkip

function u(t) {

c.style.filter=`invert(`,t||(X=Y=0)
for(i=999;i--;X%=5,Y%=3)x.fillRect((X+=T(Y/14)-T(X/22)/22)*1270,400+(Y+=C(X-S(Y-X)))*(79+t**49),1,1)

May 12 2022 11:33 AM UTC

}// 136/140

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#space

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katkip

function u(t) {

t||(c.width=700,X=Y=0)
for(i=420;i--;)x.fillRect(180+(X+=S(Y/4))*170,130+(Y+=C(X-S(Y-X)))*70,1,1),X%=2,Y%=3.1

May 12 2022 11:24 AM UTC

}// 109/140

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strange seashell #attractor

u/katkip

i missed dwitter

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CaptainMeat

remix of d/25479 by u/CaptainMeat

function u(t) {

sr=seed=>{
l=[],a=0,
l.push(seed)
if(l.length>=5)l.shift()
for(i in l)a^=l[i]<<seed
return a/=5
}
throw sr(t)

May 11 2022 3:35 PM UTC

}// 109/140

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CaptainMeat

function u(t) {

l=[],c.width|=a=0,
l.push(t|0)
if(l.length>=5)l.shift()
for(i in l)a^=l[i]<<t|t
a/=5
x.font='80px q'
x.fillText(parseFloat("."+a),980,540)

May 11 2022 3:29 PM UTC

}// 140/140

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trying to make psuedo random numbers

u/CaptainMeat

getting NaN error

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pavel

function u(t) {

for(i=c.width|=0;y=--i>>7;)x[i&7?'arc':'moveTo'](43*(i/2&60|y&2),25*(3*y+y%2-2),99-i%2*(51+45/(1+i**C(t+y/9))),a=(i+y+.5)%6/.955,a)
x.fill()

May 11 2022 12:56 AM UTC

}// 140/140

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Unblasphemous Geometryᵀᴹ Radical Echoes Pattern by Xponentialdesign

u/pavel

Source: https://www.reddit.com/user/xponentialdesign…
u/Xen

Love it!
u/vain

i'm really amazed how you converted the gif anim to an amazing tiny code. just great! <3
u/pavel

Thanks for the kind words :)

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rodrigo.siqueira

remix of d/25474 by u/rodrigo.siqueira

function u(t) {

for(m=1e3;m--;x[m%2?'fill':'stroke']())x.beginPath(x.fillStyle=R(i=m%139,i*2,i*4,.2)),x[m%5?'rect':'arc'](m*m%2e3,m,T(i+~~(t*2))**2/1.5,i,m)

May 9 2022 7:02 PM UTC

}// 140/140

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Geometry blue print slideshow

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