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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tzador

remix of d/33261 by u/tzador

function u(t) {

eval(unescape(escape`𮀮𩡩𫁬𤱴𮑬𩐽𙰣𜀰𜀸𙰊𩡯𬠨𣠽𜑥𝀬𪐽𣠪𝀬𮀮𩡩𫁬𤡥𨱴𚀰𛀰𛁎𛁎𚐻𦀽𚁓𚁩𚡎𚐪𣠫𤰨𭀩𚠲𚐥𞐭𝀬𦐽𚁃𚁩𚡎𚐪𣠫𠰨𭀩𚠲𚐥𞐭𝀬𦠽𜠭𜐮𝐯𚀱𚱘𚡘𚱙𚡙𚐬𪐭𛐻𚑸𛡣𫁥𨑲𤡥𨱴𚀹𝠰𚱘𚠵𜀰𛱚𛀵𝀰𚱙𚠵𝐵𛱚𛀴𛱚𛀴𛱚𚐠`.replace(/uD./g,"")))

Feb 8 2025 5:23 PM UTC

}// 130/140

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#blackhole

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donbright

remix of d/1863 by u/SpecialAgent

function u(t) {

c.width=1024;w=64;for(i=w*w;i--;)X=i%w,Y=i/w>>0,P=128*((1-t*t)*X*X/(1+t*t)+2*t*Y*Y/(1+t*t)),x.fillRect(200+X*10,Y*10,P%11,P%11)

Mar 11 2017 2:03 AM UTC

}// 129/140

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No Sine or Cosine were harmed in the making of this demo. It is not random - and if it runs long enough it should theoretically become a still image

u/sfz

Those ripples are tripping me out
u/donbright

note to future self - this varies from x*x + y*Y to x*x-y*y (circle to hyperbola) by using the rational parameterization of the circle with one variable parameter, where (1-t**2)/(1+t**2) is an alternate to cosine and 2t/(1+t**2) is an alternate to sine. (or vice versa i forget lol)
u/magna

Awesome!
u/z3vin

So cool

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andrea270872

function u(t) {

c.width|=B=1/(~~t%40+1.5)
for(A=[],i=40;i-->0;)A.push(B*2e3,(B=2*B%1)*1e3)
x.fillStyle='#A'+(9*~~t%40+10)
x.fill(new Path2D(`M${A}`))

Feb 16 2020 8:48 PM UTC

}// 133/140

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Space message from the 80s

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pe8ter

remix of d/4163 by u/pe8ter

function u(t) {

d=255
a=S(t/3)
b=S(t)
x.fillStyle=R(d*b,d*S(t/2),d*a,.7+.3*b)
for(i=0;i<1920;)x.fillRect(i++,475+535*S(C(i/300+5*b)+5*a),1,200)

Dec 30 2017 7:55 AM UTC

}// 127/140

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Made it a little higher quality with less characters.

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taupelink

remix of d/35347 by u/taupelink

function u(t) {

with(x)for(m=400>>t;m--;fill(arc(m**4%1951,m**3%1129,m/(i*t)**.2,i,i+1+t)))beginPath(fillStyle=`hsl(${i=15+(m%8)**3},30%,${107-i**.7}%,.2)`)

May 9 2026 6:20 AM UTC

}// 140/140

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d/35357

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BackendForth

function u(t) {

c.width|=0
for(i=99;i--;)x.arc(i*(70+t*5),540,(t-i<0?0:t-i)*99,0,7)
x.stroke()

May 6 2021 12:55 PM UTC

}// 78/140

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breaking the sound barrier

u/Xen

nice concept!

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anotherkitten

remix of d/10954 by u/anotherkitten

function u(t) {

t*=t;t%=9;for(j=0;j++<15;)for(h=9;h-->-8;)for(i=9;i-->-8;x.fillRect(958+h*m*t-j*4,538+i*m*t-j*4,m+4,m+4))m=8*j,x.fillStyle=R(m,m*2)

Nov 14 2018 6:30 PM UTC

}// 131/140

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idk if this is too fast I'm on my phone rn

u/anotherkitten

it 100% was but it gets trippy after a while so its still cool
u/katkip

this is cool

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beaster

function u(t) {

eval(unescape(escape`𬰽𜠯𚁴𚰱𚐻𩡯𬠨𬠽𛑳𛁶🐰𞱲🁳𞱶𚰫𛁲𚰽𬰯𜐳𝐩𩡯𬠨𪐽𛑳𛐰𛠹𚡴𚡳𛁨🐰𞱨🀴𞀰𞱩𚰽𬰯𜠰𜠩𮱦𫱲𚁭👮👬🐰𞱬🀶𝀦𙠡𚁭𚡭𚱮𚡮🠴𛠰𚐻𫀫𚰩𮱰👭𚡭𛑮𚡮𚱩𞱮🐲𚡭𚡮𚱲𞱭👰𯑸𛡦𪑬𫁒𩑣𭀨𝀪𪀫𚰬𝀪𭠬𝀬𝀩𞱸𛡦𪑬𫁓𭁹𫁥👒𚁬𛁬𚠴𛁬𚠱𝠩𯐠`.replace(/u../g,'')))

Aug 7 2024 3:37 PM UTC

}// 140/140

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u/Joachim

Looks good!
u/beaster

unpacked: s=2/(t+1);for(r=-s,v=0;r<s;v++,r+=s/135)for(i=-s-0.9*t*s,h=0;h<480;i+=s/202){for(m=n=l=0;l<64&&!(m*m+n*n>4.0);l++){p=m*m-n*n+i;n=2*m*n+r;m=p}x.fillRect(4*h++,4*v,4,4);x.fillStyle=R(l,l*4,l*16)}

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ciaccodavide

remix of d/20530 by u/ciaccodavide

function u(t) {

P=18

for(K=0;K<960/P;K++)x.fillStyle=R(g=66+96*Math.random()*.02*K,g*.7,g*2),
x.fillRect(K*P,K*P,1920-P*K*2,960-P*K*2)

Nov 10 2020 4:13 PM UTC

}// 119/140

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u/donbright

funky

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rodrigo.siqueira

remix of d/26298 by u/rodrigo.siqueira

function u(t) {

for(m=1e4;m--;x.fill())x.beginPath(x.fillStyle=R(j=m**S(m/99+t),i=m%300,m/j*5,250/j/i)),x.arc(3*(o=i^j)*C(m)+940,o*S(m)+540,i*j/99,m,m+m%9)

Oct 14 2022 7:40 PM UTC

}// 139/140

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Eye of the Dragon