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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Current theme challenge: #Food

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tzador

function u(t) {

c.addEventListener('mousemove',(e)=>{
x.fillRect(e.offsetX*3.3,e.offsetY*3.4,10,10);
x.fillRect(1920-e.offsetX*3.3,e.offsetY*3.4,10,10)
})

Jan 27 2025 9:34 PM UTC

}// 138/140

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Draw on me, symetrically

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Polyducks

function u(t) {

L=(X,Y,X1,X2)=>{x.beginPath();x.moveTo(X,Y);x.lineTo(X1,X2);x.stroke()}
if(t<16){L(S(t)*1000,S(t)*1000,T(t)*1000/S(t),t*100)}

Apr 18 2017 6:04 PM UTC

}// 125/140

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_A stone wall by the sea_

u/Polyducks

I'll work out how to do bold text soon, I swear...
u/tapgiles

The first comment is automatically made bold ;P
u/tapgiles

Looks cool. Wish the line wouldn't disappear for so long, though...

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rodrigo.siqueira

remix of d/29134 by u/rodrigo.siqueira

function u(t) {

for(t?Y++:Y=0,X=3e3;X--;x.fillRect(X,Y,1,f(X/874-1.1,Y/500-1.1)))f=(a,b,n=0)=>b?f(a*a-b*b+.28,T(a*b)*3,n+1):(x.fillStyle=R(n*2,n),S(n/3)+.5)

Dec 15 2023 8:27 PM UTC

}// 140/140

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Fractal Brain #fractal

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AncientGarden

function u(t) {

c.width|=0;for(i=100;i--;x.fillRect(a+i%25*100-((t|0)%5==(i/25|0)?t%2*100:0),400+(i/(t<2.7?t*9:25)|0)*a,a,a))a=50

Mar 16 2026 2:29 AM UTC

}// 113/140

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Default ▪️ ▪️ ▪️ ▪️

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mxfh

remix of d/2117 by u/mxfh

function u(t) {

x.setTransform(f=108,0,0,f,6*f,5*f);i=~~t%8;r=i<4;x.rotate(Math.PI/2*i);x.fillStyle=r?'#FFD100':'#004B87';x.fillRect(l=r?-1:1,l,r?2:f,f)

Mar 14 2017 3:16 AM UTC

}// 136/140

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http://www.norden.org/en/fakta-om-norden-1/t…

u/iverjo

#flag

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rodrigo.siqueira

remix of d/18413 by u/pavel

function u(t) {

for(f=c=>S(S(9*c/d)*t),Y=t/3-1,i=2e3;i--;x.fillRect(i,t*180,(1+f(X)*f(Y))*(d/2+Y),3))X=i/480-2,r=X*X+Y*Y,x.fillStyle=R(C(r)*120),d=r>1||T(r)

Apr 23 2020 3:35 PM UTC

}// 140/140

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Red Sphere Reflection #raytracing

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iverjo

remix of d/391 by u/iverjo

function u(t) {

c.width=96;x.lineWidth=50;x.fillText('#',2e2-t*95.5%2e2,W=30);x.strokeStyle=R(246,162);x.arc(10,27,25,G=.3-.5*S(t*6+2),6.3-G);x.stroke()

Nov 7 2016 12:21 PM UTC

}// 136/140

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This is a reference to csharp.cloud

u/iverjo

#pacman

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lionleaf

remix of d/601 by u/ose

function u(t) {

for(i=0;i<20;i++){
x.fillStyle=R(S(i*t)*255,S(i+1+t)*255,S(i+2+t)*255);
x.fillRect(i*150+100*S(t),t*50%1080,S(T(t*i))*50,150);
}

Jan 14 2017 4:14 PM UTC

}// 128/140

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u/donbright

beautiful
u/leonarven

Almost retro! Nice!

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keithclark

function u(t) {

for(c.width|=$=256;$--;)x.fillStyle=R(z=$%15,x.font=z*8+"pt a",x.fillText('❄',($*1e6+S(t+$)*z*3)%2050-99,(z*t*30+$*$)%2050),z/15)

Mar 7 2018 1:06 PM UTC

}// 129/140

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u/prplz

☃
u/keithclark

#snow

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Sven

function u(t) {

M=Math.random;G=(c)=>M()*c;H=c.height,W=c.width,n=80,o=n*3;x.fillStyle=R(G(o),G(o),G(o),1);for(i=0;i<n;i++){x.fillRect(G(W),G(H),G(n),G(n))}

Dec 27 2017 10:57 AM UTC

}// 140/140

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My first one! 😎

u/maniflames

😏