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

magna

remix of d/11335 by u/keithclark

function u(t) {

for(x.fillRect(0,0,j=2e3,j);j--;x.clearRect(C(j)*r+960,S(j*j)*r+540,r>>=8,r))r=j/(4-(t+j/9)%4),x.clearRect(400+j%9*100+S(t)*300,400,50,200)

Dec 8 2018 2:18 AM UTC

}// 139/140

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

#starfield #default

u/katkip

Nice. #stars

show FPS hide FPS share 1 remix fullscreen

Xen

remix of d/13335 by u/bandaloo

function u(t) {

for(i=199;i--;x.beginPath(x.fill(x.arc(960+d*9*C(i+t)*i,540+d*9*S(i+t)*i,i,0,44/7))))d=C(S(t/69)*i),x.fillStyle=R(i*2,t^i,i*t%255,.1)

Apr 21 2019 8:28 PM UTC

}// 133/140

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

Had to have a play

u/bandaloo

sick!
u/KilledByAPixel

i need to try this alpha thing i been hearing about
u/DeathBoy

LOVE it!

show FPS hide FPS share fullscreen

AJK

function u(t) {

a=t/99;s=128;r=(f,s,p=1)=>s*(f(t*p)+1);x.fillStyle=R(r(S,s),r(C,s),s);x.drawImage(c,r(T,540),r(C,270,a));x.fillRect(r(S,896,a),r(S,476),s,s)

Feb 24 2017 10:36 AM UTC

}// 140/140

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

u/JakeSteam

It didn't even start off making sense, and got more chaotic from there!

show FPS hide FPS share 1 remix fullscreen

sfz

function u(t) {

d=t*32|0;if(!(d%42))i=new Image(),i.src="//unsplash.it/"+d%469,i.onload=()=>{x.fillStyle=x.createPattern(i,''),x.fillRect(0,0,2e3,1e3)}

Feb 23 2017 8:38 PM UTC

}// 135/140

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

sawaxon

remix of d/1621 by u/sawaxon

function u(t) {

c.width=1920;for(j=1;j<10;j++)for(i=1;i<190;i++)x.fillRect(900+C(i)*400,500+S(i)*6*S((t+20)*5*j/50)*70,21,4);

Feb 28 2017 8:29 PM UTC

}// 109/140

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

lewdev

remix of d/34595 by u/ximavus

function u(t) {

A=s=>x.fillStyle=s
A`#0001`
t?x.fillRect(0,0,2e3,2e3):f=[]
A`#0f0`
f.push([Math.random()*2e3,0])
for(a of f)x.fillText(0,a[0],a[1]+=9)

Dec 10 2025 10:05 PM UTC

}// 134/140

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

#Matrix Rain

u/ximavus

I didn't know the for(a of f) one. Gonna use it now. Useful!

show FPS hide FPS share fullscreen

cp3p0

function u(t) {

l=c.width+=i=0;h=400;for(;++i<200;)for(j=a=(t+C(i))%2;j++<50;)x.fillRect(l*T(i*i)+~~a*(w=a*h-h)*C(j),(~~a?h:a*h)*(T(i)*T(i)+2)+w*S(j)/4,3,3)

Dec 27 2017 12:26 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 1 remix fullscreen

atgz

remix of d/8890 by u/atgz

function u(t) {

for(c.width|=i=256;i--;)x.fillRect(960+2*i*C(t--+i*.979),512+S(t---i-t)*i*2,i/9,i/9)

Jul 18 2018 8:49 PM UTC

}// 85/140

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

made it colorless so that it's easier to notice the bistable perception

show FPS hide FPS share 2 remixes fullscreen

rodrigo.siqueira

remix of d/19226 by u/rodrigo.siqueira

function u(t) {

for(i=2e3,f=(X,Y,n=59)=>Y?f(T(X)*X-Y*Y+.2,X*Y-.9,n+.4):x.fillStyle=`hsl(${n*9} 90% ${S(n)*90}%`;i--;x.fillRect(i,t*60,1,i))f(i/1e3-1,1-t/25)

Jun 24 2020 7:13 PM UTC

}// 140/140

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

Icy vortex #spiral #fractal

u/Xen

Sexy!
u/tomxor

wow noice

show FPS hide FPS share fullscreen

marquisdegeek

remix of d/33085 by u/marquisdegeek

function u(t) {

this.r??=1
s=10
j=1
for(n=i=0;i<32;j*=2)
(j&r)&&x.fillRect(i*s,t*600,s,s),
n|=126&1<<((r&1<<++i?4:0)|(r&j?2:0)|(r&1<<i+30?1:0))?j:0
r=n

Jan 20 2025 10:14 AM UTC

}// 135/140

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

So _that's_ how to do a global! this.r??=1

u/KilledByAPixel

there are a few easier ways, the most common is to check if t is 0 to init t?0:r=1