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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fnurgel

function u(t) {

c.width=2e3;
for(i=2e3;i--;)p=S(t/2),q=S(t),x.fillRect(0,i/2,1920,S((p*(1e3-i)/500)%360+i/100+q+(i-i%100)*2)/1.5)

Mar 2 2017 10:58 PM UTC

}// 114/140

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u/SpecialAgent

Nice gradient
u/UEZ

#rasterbars

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Odog8

function u(t) {

x.font="5em'";x.fillText(code[~~(t*10)].replace([][[]],''),(~~(t*10)*45)%1920,(t*80)%1080+80)

Nov 11 2019 11:17 PM UTC

}// 93/140

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cos we cant get enough quines

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tzador

function u(t) {

G=z=>Math.tanh((z-Math.round(z))*9)/2+Math.round(z)
c.width|=0
for(i=0;i<9;i++)
x.fillRect(400+G(i)*100+S(G(t+i/30)-i/30)*300,400,50,200)

Feb 12 2025 12:55 AM UTC

}// 137/140

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#default Smooth Step

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katkip

function u(t) {

x.beginPath(),x.arc(t*99+C(-t+Math.PI)*99,t*99+S(-t+Math.PI)*99,10,0,7),x.fill()

Dec 23 2018 1:32 PM UTC

}// 80/140

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Vsauce's Brachistochrone in 80 bytes https://youtu.be/skvnj67YGmw

u/jylikangas

65b after some golf tricks... x.fill(x.arc(t*T+C(a=3.14-t)*T,t*T+S(a)*T,9,!x.beginPath(),T=99))
u/katkip

ow

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rodrigo.siqueira

function u(t) {

x.beginPath()
for(c.width^=i=0;i<3e3;i++)x.lineTo(X=540,X),x.lineTo(960+X*C(i/2),X+C(t+i+S(i/4+t))*360)
x.strokeStyle=`#0452`
x.stroke()

Jan 30 2019 9:35 PM UTC

}// 136/140

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Rotating curved surface

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MrFreezz

function u(t) {

for(c.width=1920,i=1e3;i--;x.fillText(i%9,960+(X*C(t)-Z*S(t))*k,540+Y*k))X=i%10-5,Y=(i/10|0)%10-5,Z=(i/100|0)-5,k=400/(X*S(t)+Z*C(t)+15)

Feb 24 2026 9:46 PM UTC

}// 136/140

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CubeField

u/cantelope

the numbers are difficult to read. good job otherwise! :D

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katkip

function u(t) {

eval(unescape(escape`𦀽𞐶𜀬𦐽𝐴𜀬𦠽𝀰𜀭𭀪𞀻𮀮𩡩𫁬𤱴𮑬𩐽𘠣𜀰𜀲𘠻𮀮𩡩𫁬𤡥𨱴𚀰𛀰𛀲𩐳𛀲𩐳𚐻𩡯𬠨𪐽𞐻𪐭𛐻𚑸𛡦𪑬𫁓𭁹𫁥👠𪁳𫀨𙁻𦠪𜐰𜁽𛀹𞐥𛀵𜀥𚑠𛁸𛡦𪑬𫁒𩑣𭀨𦀭𦠯𝐬𦐭𦠯𝐬𦠯𝀬𦠯𝀩𛁘𚰽𠰨𦀫𦠯𞐩𚡚𛁙𚰽𤰨𦐫𦠯𞐩𚡚𛁚𛰽𭀠`.replace(/uD./g,'')))

Nov 27 2019 11:56 AM UTC

}// 133/140

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Zooming out from the solar system

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Agnes

function u(t) {

with(x)for(w=c.width|=i=o=0;i<500;r=2*w/i,rotate(S(o=o+S(t/r))),fillStyle='#'+i*10,translate(i?o:w/2,i++?0:540),fillRect(m=-r/2,m,r,r));

Mar 26 2018 5:12 PM UTC

}// 136/140

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u/magna

Pretty!

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micksam7

remix of d/1384 by u/micksam7

function u(t) {

f=2e3;x.fillStyle=R(f,f,f,.2);x.fillRect(0,0,f,f);for(i=0;i<f;i++)a=T(i+t/4)*C(i),x.fillStyle=R(i,i/5),x.fillRect(a*900+960,i-20,a*20,20)

Feb 27 2017 12:59 AM UTC

}// 137/140

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Pascal

remix of d/21645 by u/Pascal

function u(t) {

eval(unescape(escape`𘑴🱸𛡦𪑬𫁒𩑣𭀨𜀬𜀬𜡥𜰬𜡥𜰩𞡷🐹𝠰𒡦𫱲𚁩👷𚠲𞱩𛐭𞱸𛡦𪑬𫁒𩑣𭀨𭰫𭰪𚀳𚡓𚁕👩𚱴𚐫𤰨𥠽𭀫𪐯𜠩𚐯𝐬𭰫𚁃𚁕𚱴𚐪𠰨𪐪𜰫𭀩𚱃𚁖𚐪𥀨𥠩𛐲𚐯𝐪𭰬𝐬𝐩𚑸𛡦𪑬𫁓𭁹𫁥👒𚁷𚡃𚁩𚐬𭰪𠰨𪐫𜠮𜐩𛁷𚡃𚁩𚰴𛠲𚐬𜀮𜠩`.replace(/u../g,'')))

Feb 12 2021 10:20 AM UTC

}// 131/140

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abstract colorful waves

u/Xen

screensaver vibes