Dweets awesomed by u/Toby

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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rodrigo.siqueira

remix of d/22870 by u/rodrigo.siqueira

function u(t) {

Y=c.width|=c.style.filter=`invert(.1`
for(X=960;X--;x.lineWidth=3)
x.lineTo(460+X+C(Y)*S(t)*88,Y=540+S(X)%C(X)*300**C(X/200-t))
x.stroke()

May 27 2021 1:40 PM UTC

}// 138/140

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Spatiotemporal evolution of soliton pulse formation #wave

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KilledByAPixel

remix of d/22858 by u/KilledByAPixel

function u(t) {

B=z=>C((t+9+z%2|0)**(Y+(z<2)|0))*(z&1?t%1:1-t%1)*(z&2?1-Y%1:Y%1)
for(i=1e3;i--;x.fillRect(i*2+b*9,t*60,b,5))Y=9+i/30,b=B(0)+B(1)+B(2)+B(3)

May 27 2021 2:48 AM UTC

}// 138/140

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Moiré Noisy

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magna

function u(t) {

c.width|=0
x.scale(.5,1)
x.font='8cm"'
x.fillText('▮▮▮▮▮▮▮▮▮',800+S(t)*600,600)

May 27 2021 12:53 AM UTC

}// 79/140

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Unicode #default

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rodrigo.siqueira

function u(t) {

c.width|=c.style.filter=`invert(`
for(X=960;X--;x.lineWidth=5)
x.lineTo(X*2,600-C(frame/X+t)*200%S(X/32-t)*250*S(t+X/38))
x.stroke()

May 26 2021 7:03 PM UTC

}// 132/140

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Frequency modulation with noise harmonics #wave

u/magna

Oscilloscope edition: d/22873

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maakbay

remix of d/5864 by u/jayrhacker

function u(t) {

w=32
cw=c.width=1080
ch=c.height
for(i=0;i<cw/w;i++){x.fillStyle=R(0,128,256*S(t))
x.fillRect(i*w,ch/4-C(4*t*2+(i*3))*50,w,ch/2)}

May 26 2021 7:38 AM UTC

}// 129/140

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u/andrea270872

nice. reminds me of a "loading" animation...
u/Xen

Welcome to the dwitter family!

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kmoseni

remix of d/5526 by u/anzx

function u(t) {

for(c.width|=i=S(t);i<1001;i++){s=20+10*S(t)
x.fillRect(400+S(t+i)*200+i*6,i*6,s,s)
x.fillStyle=R(($=t*i)*3%255,$*5%255,$*7%255,0.6)}

May 25 2021 4:59 PM UTC

}// 133/140

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kmoseni

remix of d/22859 by u/kmoseni

function u(t) {

p=3.14
t*=S(t)/t/2
c.width|=0
for(i=-33;i<33;i++){
x.fillRect(990+10*i*p+C($=S(i*t)),540,17*$,50/$)
x.fillStyle=R(255)
}

May 25 2021 4:20 PM UTC

}// 120/140

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Welp, immediately figured out the issue! I need to enclose the for-loop with curly brackets #JSnoob

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KilledByAPixel

remix of d/15036 by u/KilledByAPixel

function u(t) {

s=(a,b,p)=>b*(p*=p*(3-2*p))+a-a*p
r=X=>C(X&Y)
l=_=>s(r(X),r(X+1),X%1)
for(i=2e3;X=--i/40;x.fillRect(i,t*99-n*9,3,n))n=s(l(Y=t*3),l(Y++),Y%1)

May 25 2021 3:07 PM UTC

}// 140/140

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Melt Sierpinski

u/taupelink

excellent
u/erin

has GLSL vibes
u/tomxor

I'll take the two middle ones, to go, hot please
u/Xen

nice!
u/magna

Deep dream vibes

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kmoseni

remix of d/17401 by u/username

function u(t) {

c.width*=1;s=5;x.translate(950,540);for(i=200;i--;)x.strokeRect(-i*s,i*s,i*s*2,i*s*2),x.rotate(t/99)

May 24 2021 9:30 PM UTC

}// 100/140

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On a spiral binge

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kmoseni

function u(t) {

p=6.28*t**3;A=3600/p**0.2;
x.fillRect(990+S(t)*A,520+C(t)*A,10*S(p),10*C(p))

May 24 2021 6:38 PM UTC

}// 76/140

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My first dweet: a glitchy spiral! Very excited to move from lurker to contributor amongst all of you incredible coders and artists here on Dwitter!

Show more comments…
u/Xen

Welcome to the dwitter family!
u/magna

Nice style!
u/magna

Here's some quick golfing down to 68: p=7*t**3;A=3e3/p**.2;x.fillRect(960+S(t)*A,540+C(t)*A,9*S(p),9*C(p))
u/Xen

A=3e3/(t**3)**.2;x.fillRect(990+S(t)*A,520+C(t)*A,9*S(A),9*C(A))
u/kmoseni

Thanks, u/Xen and u/magna! Of the two suggestions, I'll have to side with u/Magna's for golfing it down while maintaining the glitchy-ness!
u/aleamb

#firstdweet

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