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

Please log in (or register) to post a dweet (copy-paste the code somewhere safe to save it meanwhile)


    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

show FPS hide FPS share fullscreen

DazeWare

remix of d/33632 by u/DazeWare

function u(t) {

for(i=0;i<9;i++)
{
x.font="6em arial";
x.fillStyle = `hsl(${t*99^i}, 100%, 50%)`;
x.fillText("O",t*99,600+t*40*S(t),t*99);
}

Apr 22 2025 3:38 AM UTC

}// 124/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

show FPS hide FPS share fullscreen

Mixony

function u(t) {

k=60
p=180
t*=1
f=(X,l,n)=>{for(;l--;){x.fillStyle="#00"+(n&1<<l?9:3)
x.fillRect(X*p,l*p,p,p)}}
f(4,6,t%k)
f(2,6,t/k%k)
f(0,5,t/k/k%24)

Jan 30 2023 12:45 AM UTC

}// 135/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

A binary clock. The value p can be changed to resize a lamp(square) while the "1" int the third row can be changed to speed up the clock. The order is left(hours), center(minutes), right(seconds)

show FPS hide FPS share fullscreen

codezmr

function u(t) {

for(i=2e3;i--;x.fillRect(i?960+S(a)*r:0,i?540+C(a)*r:0,w,w))a=i+t,r=T(i/99+t)*i/5,w=i?3:9e5,x.fillStyle=i?R(r,i%255,200):R(0,0,0,.1,x.fill)

Jan 16 2026 2:10 PM UTC

}// 139/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

show FPS hide FPS share 1 remix fullscreen

keithclark

function u(t) {

for(c.width^=0,x.globalCompositeOperation='xor',a=50;--a;x.arc(960+S(G+t)*400,520+C(t+G*3)*400,a%25*70,0,7),x.beginPath(x.fill()))G=a/25|0

May 11 2017 12:16 AM UTC

}// 138/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

u/donbright

for slower machines... for(c.width=320,x.globalCompositeOperation='xor',a=50;--a;x.arc(160+S(G+t)*99,100+C(t+G*3)*99,a%25*20,0,7),x.beginPath(x.fill()))G=a/25|0

show FPS hide FPS share fullscreen

hamptonio

remix of d/1235 by u/hamptonio

function u(t) {

c.width=1920;q=y=8.5-1/t;z=27;for(i=0;i<5000;i++){q+=.1*(y-q);y+=.01*(q*(28-z)-y);z+=.01*(q*y-8*z/3);x.lineTo(q*20+900,y*20+500);}x.stroke()

Feb 25 2017 1:13 AM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

show FPS hide FPS share fullscreen

metamn

remix of d/10654 by u/rodrigo.siqueira

function u(t) {

for(i=15;i--;)
x.fillRect(
99+i*70+C(i*i*t)*100,
99+C(t*5)*80+i%5*210,5,5)

Oct 25 2018 6:14 AM UTC

}// 75/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

patterns

show FPS hide FPS share 1 remix fullscreen

Tesseract

function u(t) {

x.strokeStyle=R(9,t?(i+=2)/9:i=0,0,.3)
for(j=3e3;j--;x.beginPath(x.stroke()))l=(k=i|j)&-k,x.arc(j,i,(x.lineWidth=l/(l&i&j?.707:1))/18,0,7)

May 25 2018 5:26 AM UTC

}// 138/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

#fractal

u/Tesseract

Arc radius and line width are semi-interchangeable

show FPS hide FPS share 1 remix fullscreen

rodrigo.siqueira

remix of d/13657 by u/rodrigo.siqueira

function u(t) {

if(t<9)for(w=i=960;i--;x.fillRect(w+w*X/Z+Z-X*99,w*Y/Z,s=30/Z/Z,s))
X=2.5*C(U=i+i/t)+C(V=i*i)*S(U),
Y=2*S(U)+C(U)*S(U)-3.5,
Z=S(i*i+U)-7

May 7 2019 1:32 AM UTC

}// 136/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Strip

show FPS hide FPS share fullscreen

patavinas

function u(t) {

FPS=30
c.width=w=133,d=x.createImageData(w,w)
for(i=0;i<d.data.length;i+=3+C(t/2+i)**2|0)d.data[i]=C(i+t)*225|0
x.putImageData(d,0,0)

Jan 14 2023 6:35 PM UTC

}// 134/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

show FPS hide FPS share fullscreen

lerc

remix of d/23608 by u/tactical_retard

function u(t) {

A="╱╲"
eval(unescape(escape`𭱩𭁨𚁸𚑻𡠽𩠽🡦𪑬𫁓𭁹𫁥👦𒡳👦𫱮𭀽𘠳𩑭𘁡𘠊𩡯𬠨𪐽𡐽𝐷𞱩𛐭𞱳𚰽𠑛𚰨𤰨𪐪𪐪𭀩🀰𚑝𚑆𨀣𜀸𩡠𒡑👟🐾𮰊𩡩𫁬𤡥𨱴𚀰𛁹🐰𛁷🐳𩐳𛁷𚐊𡡠𘰰𜁁𨀊𩡩𫁬𤡥𨱴𚀲𝠰𛀱𜠶𛀱𝀱𜀬𞀰𜀩𯐊𭀦𙡹🁷🱦𪑬𫁔𩑸𭀨𬰬𡐬𮐫👅𚐺𤐨𚑽`.replace(/u../g,'')))

Aug 22 2021 6:01 AM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Took a bit of squeezing but it needed that classic look

u/lerc

Apect ratio is a bit weird since the c64 wan't 16:9. Didn't want to have massive borders tough.
u/tactical_retard

replace the 👅 with the 🐳 for a cool effect