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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ciaccodavide

remix of d/20828 by u/ciaccodavide

function u(t) {

c.width|=1
for(i=1920;i--;)
x.fillRect(i,0,1,50+(1+S(t+i))*1e3)

Nov 28 2020 9:34 AM UTC

}// 63/140

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taupelink

remix of d/19765 by u/taupelink

function u(t) {

f=X=>T(X*X)>1?1/S(X):a/f(X+b);for(i=1440;i--;x.fillRect(a*120,b*120,f(q=S(a)+C(b))>f(a*a+b*b),f(q*q)<q))a=i/90+(r=Math.random)(),b=i%8.9+r()

Aug 24 2020 12:26 PM UTC

}// 140/140

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d/19766

u/tomxor

#waitforit Looks quite a lot like wooden grain

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baon

remix of d/28957 by u/baon

function u(t) {

for(c.width|=0,X=Y=0,i=5e3;i--;)X=500*C(i)*C(t+i/2+i/(i^20))+X/2,Y=500*S(i),x.fillStyle=R(255,255/8*(i%5),0,1),x.fillRect(960+X,540+Y,10,10)

Nov 25 2023 9:22 AM UTC

}// 140/140

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alien

function u(t) {

t?1:(a=0,onkeydown=e=>a+=e.which-38)
W=c.width
x.fillRect((a+140*C(a)+W/2)%W,140*S(a)+W/4,20,20)
x.fillStyle=R(C(a+t)*255,S(t-a)*255,50)

Dec 12 2017 12:19 AM UTC

}// 136/140

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Yes it's a square, now focus the iframe and press key for a long time :D watch patterns converge.

u/Xen

well played sir :-)

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gjz

function u(t) {

c.width+=0
for(i=0;i<77;i++)x.fillStyle=R(210,80+S(t-i/10)*-80,50,1),j=t-i*600,w=90+C(j)*20,x.fillRect(910+S(j)*600,500+C(j)*C(t)*200,w,w)

Jan 9 2023 2:04 AM UTC

}// 138/140

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First dweet!

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yonatan

remix of d/15697 by u/jlidbeck

function u(t) {

for(i=c.width=99;i--;)for(j=56;j--;x.fillRect(i,j,1,S(u-C(v))*S(v+C(u))/2+.5))m=S(t),n=C(t),q=m*n,u=(a=i-50)*m+(b=j-26)*q,v=b*m-a*q

May 15 2020 3:30 PM UTC

}// 131/140

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u/sigveseb

Awesome pattern
u/danny@hille.dk

WebGl version here -> http://glslsandbox.com/e#70767.0

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sandromiccoli

function u(t) {

c.width=1920;for(i=0;i<200;i++){x.lineWidth=(C(t+i)+1)/2*((S(t*i/9)+1)/2)*20;sw=5+15*i;s=sw*S(1+t/100);x.strokeRect(960-sw/2,540-s/2,sw,s)}

Jan 5 2018 12:13 AM UTC

}// 139/140

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rodrigo.siqueira

remix of d/32161 by u/rodrigo.siqueira

function u(t) {

f=u=>((u%16-2)**4);g=n=>!(f(X/n*2)%f(Y*n/6)&672);for(i=2e4;i--;x.fillRect(S(i)*3/t/t+24*X+306,31*Y-89,g(3),g(t)))if(t<4)X=i*t%54.6,Y=X*i%48

Jul 25 2024 2:37 PM UTC

}// 139/140

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Framed

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tactical_retard

function u(t) {

r=Math.random
for(i=2e4;i--&&t<9;x.fillRect(p.x,p.y,.5,.5))p=T[i]=t?T[i]:{x:r()*2e3,y:r()*2e3},T[i].x+=S(p.y/540*3.1),T[i].y+=S(p.x/960*3.1)

Jun 4 2022 2:04 AM UTC

}// 140/140

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#vectorfield

u/rep_movsd

T[i].x+=S(p.y*(p.x**.5)) is interesting

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katkip

remix of d/10024 by u/katkip

function u(t) {

c.width^=0;for(i=0;i++<128;)for(j=0;j++<72;)
x.fillStyle=
S(S(i))<C(C(j+t))?'#000':'#fff',
x.fillRect(i*15,j*15,14,14)

Sep 22 2018 5:18 PM UTC

}// 118/140

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Factory for Tetris pieces