Random dweets | Dwitter

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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lionleaf

remix of d/480 by u/argo78

function u(t) {

c.width=2e3;p=128;for(i=512;i--;){q=p*C(t*16+i/24);x.fillStyle=R(256,i%p-q,p+q);x.fillRect(80*i/16-40,i%16*80+169*S(t+i/69),60,60)}

Oct 28 2016 10:25 AM UTC

}// 131/140

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BriSeven

function u(t) {

N=50;P=44/7;c.width=1920;for(j=0;j<N;j++)for(i=0;i<N;i++)
x.fillRect(980+S(j/N*P*2)*150+S(i/N*P)*300,
540+C(j/N*P*2)*150+C(t+i/N*P)*300,5,5)

Jan 6 2017 7:37 AM UTC

}// 140/140

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u/iverjo

Cool, a torus!
u/donbright

NICE
u/Purpzie

Shortened by 5 characters: for(c.width|=a=0,N=50,P=44/7;a<N*N;)x.fillRect(980+S((j=0|a++/50)/N*P*2)*150+S((i=a%50)/N*P)*300,540+C(j/N*P*2)*150+C(t+i/N*P)*300,5,5)
u/Cloud

#tor

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Knifa

remix of d/6343 by u/Knifa

function u(t) {

c.style.background='black'
for(i=0;i<192;i++)for(j=0;j<32;j++){q=i-96;r=j-16
x.fillStyle=R(S(t*q*r/10)*255)
x.fillRect(i*8+200,j*8+360,8,8)}

Jan 22 2018 4:51 PM UTC

}// 140/140

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u/41407

Cool! Change first line to c.style.background=R(0) to get it done in 137 chars :)
u/Knifa

cheers! didn't think of that :D
u/zanella

You can reduce to 136 actually! c.style.background=R()

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taupelink

remix of d/23737 by u/taupelink

function u(t) {

for(i=480;--i;x.fillRect(t*f-i*X,480-q/Y,-5*q/t,i))f=i*t,X=f*f%4-2,Y=f**5%4-2,x.fillStyle=R(q=i,q*=1+S((i/6^i/2+t**X)/t),q+=i*Y,i/(q+600)/t)

Sep 30 2021 1:06 AM UTC

}// 140/140

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d/23963

u/cantelope

my wife likes this one so much she asked me to print it so i did. she says she's going to frame it. :)

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akm

function u(t) {

for(i=0,c.width=1920,π=Math.PI,r=540;i++<180;a=3*i*S(t**i),x.ellipse(960,r,a<0?-a:a,r,1.5*i*π/9,0,2*π),x.stroke())x.beginPath()

Jan 31 2018 4:00 AM UTC

}// 127/140

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Xen

remix of d/29121 by u/taupelink

function u(t) {

with(x)for(i=345;i--&&t<2;fill(stroke()))beginPath(fillStyle=['#bad','#xen','#821'][i%3]+(i%2)),arc(i%13*180,i%7*180,i/t,-t,t%i)

Dec 12 2023 11:55 PM UTC

}// 128/140

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quick remix

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katkip

function u(t) {

c.width^=0;for(i=1000+(900*S(t))|0;i--;)x.fillRect(960+C(i+t/9)*i*S(i*2)/3,540+S(i+t/2)*i*C(i*2+3.14/2+C(t)/2)/3,9-i/99,9-i/99)

Mar 1 2019 8:09 PM UTC

}// 127/140

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#d3 #galaxy another one

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taupelink

remix of d/25334 by u/taupelink

function u(t) {

for(m=t?0:2e4;m-->1e4;x.fillRect(m**.5%20*96+48*X,m%36*30+4*Y,i,q))i=m%257,X=1+S(m),Y=8+8*S(m*m),x.fillStyle=R(i/Y,g=m*X/i,q=C(Y/2+m)*i,1/g)

Apr 22 2022 7:49 PM UTC

}// 140/140

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d/25358

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yonatan

remix of d/10764 by u/yonatan

function u(t) {

for(i=c.width=99;i--;)for(j=56;j--;x.fillRect(i,j,(S(j*j+i/j-t*7)+C(j**5-i/j*6+t)**3)*j/99,1));

Oct 29 2018 8:54 PM UTC

}// 95/140

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Show more comments…
u/pavel

Save a char by moving the fillRect call into the loop body to avoid ;
u/yonatan

you're right!
u/keithclark

I love this!
u/yonatan

it's also better to use rect height for the "alpha", avoids the jagged edges on the right. for(i=c.width=99;i--;)for(j=56;j--;)x.fillRect(i,j,1,(S(j*j+i/j-t*7)+C(j**5-i/j*6+t)**3)*j/99)
u/iverjo

Wow! Great #water
u/katkip

#d3 #waves

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deobfuscate

function u(t) {

x.globalCompositeOperation='xor'
for(i=8;i--;x.fillStyle=R(i*20,S(frame)*255%255))x.fillRect((frame*9E3)%1920,i*140,100,100)

Apr 18 2023 7:44 PM UTC

}// 124/140

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