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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andrea270872

function u(t) {

U=frame%20
if(U==1)K=[B=++t%2-1,A=S(t),-A,B,1e3,500,x.resetTransform()]
x.transform(...K)
x.fillStyle='#E'+U*U
x.fillRect(0,0,99,70)

Mar 26 2019 7:09 PM UTC

}// 132/140

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random affine transforms + colors

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tzador

remix of d/33322 by u/tzador

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪁼🐰𒡸𛡧𫁯𨡡𫁃𫱭𬁯𬱩𭁥𣱰𩑲𨑴𪑯𫠽𙱸𫱲𙰊𩡯𬠨𪐽𜠱𞱩𛐭𞰩𮱒🐳𜰳𚰱𜀯𪐊𮀮𨡥𩱩𫡐𨑴𪀨𚐊𮀮𨑲𨰨𤰨𪐪𜑥𝐩𚠪𜠪𜑥𝐥𞐹𚰸𞀰𛑓𚁴𚠨𪐥𜠭𜀮𝐩𚱩𚐪𝀲𛁃𚁩𙐱𩐵𚐪𚠲𚠱𩐵𙐹𞐫𝐰𜀫𠰨𭀪𚁩𙐲𛐰𛠵𚐫𪐩𚠴𜠬𤠬𜀬𝰩𒡸𛡦𪑬𫀨𚑽`.replace(/uD./g,"")))

Feb 11 2025 2:50 PM UTC

}// 139/140

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XORing #xor

u/rodrigo.siqueira

You can remove the character 𪐥 to save 1 character and improve ring movements.

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katkip

remix of d/9136 by u/joeytwiddle

function u(t) {

for(Z=1e3,i=2e3;i--;x.fillStyle=`hsla(${2e2*t},99%,66%,.02)`)
x.fillRect(Z+Z*C(i|t),500+Z*S(i^t*2),20*C(t*i),99)

Aug 6 2018 6:07 AM UTC

}// 112/140

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#remix_chain

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jylikangas

function u(t) {

c.width=300+S(t/2)*99
with(x)for(i=17;--i;fill())globalAlpha=.2,arc(X=99+i*S(t/3)*3,70,450/(Z=i-t*6%1),2.7,6.7)&rect(X-(z=150/Z),70+z,z*2,7)

Mar 31 2018 10:18 AM UTC

}// 140/140

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Tribute to Strange Crystals

Show more comments…
u/iverjo

Very good tunnel!
u/p01

✨ You can save 3 bytes by replacing 2.7 and 6.7 by 9 and 13
u/jylikangas

Thanks! Improved version: c.width=W=350+C(t)*150 with(x)for(i=17;--i;fill())globalAlpha=.2,arc(X=W/2+i*S(t/3)*4,70,450/(Z=i-t*8%1),9,13)&rect(X-(z=150/Z),70+z,z*2,7)
u/iverjo

#tunnel
u/sigveseb

#witchcraft
u/pavel

Even better with(x)for(c.width=W=350+C(t)*150,i=17;--i;fill(rect(X-z,70+z,z*2,7)))globalAlpha=.2,z=150/(i-t*8%1),arc(X=W/2+i*S(t/3)*4,70,3*z,9,13)
u/vain

This psydo 3D programming is just too high for me! My biggest respect! ! ++++

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Erazed

function u(t) {

w=c.width=1920
h=540
d=new Date()
H=d.getHours()-6+d.getMinutes()/60
x.arc(w/2,h,h/2,H*0.2618,99)
x.lineTo(w/2,h)
x.lineWidth=20
x.stroke()

Jan 3 2018 12:07 AM UTC

}// 139/140

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Minimalist 24hr clock (accurate to the minute)

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rodrigo.siqueira

remix of d/27494 by u/rodrigo.siqueira

function u(t) {

for(x.fillRect(0,0,w=2e3,w),i=1e4;i--;x.clearRect(w/2+S(p=T(i**5+t)+t/19)/(Z=T(i)/3),w/4+C(p+4)/Z,K=3*S(t*3+i**3)**2,K))x.globalAlpha=.09

May 9 2023 12:40 PM UTC

}// 137/140

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Atomic energy levels

u/magna

Pretty!

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ersagun

remix of d/18292 by u/ersagun

function u(t) {

if(!t)B=[-1,0,1,A=0],X=Y=700;z=frame;while(~z&1)z/=2;x.fillRect(X+=B[(A+=z&3)&3],Y-=B[~A&3],1,1)

Apr 16 2020 11:39 PM UTC

}// 96/140

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Dragon curve #fractal This is all I can golf.

u/ersagun

It may have an integer overflowing problem with the angle. I couldn't wait that long to confirm it.

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Axioplase

remix of d/33980 by u/Axioplase

function u(t) {

c.width=g=2e3
for(i=0;i<g;)X=0|i/9,Y=i++%9,x.arc(X*99,Y*150,50,0,5+5*C(99*(1+C((t/99+X)))+5+5*S(t/10+Y)))
x.lineWidth=5,x.stroke()

Jun 12 2025 2:44 AM UTC

}// 130/140

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u/tomxor

Imagine the army of homunculi hidden under the bottom of the screen, keeping it all going with their long sticks.

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katkip

function u(t) {

eval(unescape(escape`𩡯𬠨𨰮𭱩𩁴𪁼👩🐹𞱩𛐭𞱣𛡳𭁹𫁥𛡢𨑣𪱧𬡯𭑮𩀽𙰣𩑥𩐧𚑸𛡦𪑬𫁒𩑣𭀨𝀰𜀫𪐪𞐹𚱓𚁴𚐪𜰰𜀬𝀰𜀬𝐰𛀲𜀰𚐻𨰮𬱴𮑬𩐮𭁲𨑮𬱦𫱲𫐽𨁲𫱴𨑴𩑘𚀤𮱴𚠪𜰪𜡽𩁥𩰩𨀬𨰮𬱴𮑬𩐮𫑡𬡧𪑮𥁯𬀽𨀤𮱴𚠪𜰪𝁽𬁸𨀠`.replace(/uD./g,'')))

Sep 4 2019 9:17 AM UTC

}// 124/140

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#default but the iframe is falling for(c.width|=i=9;i--;c.style.background='#eee')x.fillRect(400+i*99+S(t)*300,400,50,200);c.style.transform=rotateX(${t**3*2}deg),c.style.marginTop=${t**3*4}px

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rodrigo.siqueira

remix of d/25569 by u/rodrigo.siqueira

function u(t) {

f=(x,y,n=X/20)=>y<X+x?f(2*x*y+.16,x*x/4.8-y*y*C(y/2)+.5,n+.8):S(n/40)
for(i=1e4;i--;x.fillRect(X=u&2047,u>>11,f(X/3e4-.6,u/8e7-.59),1))u=-~u

Jun 17 2022 4:01 PM UTC

}// 140/140

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Spiral gate: vortex to infinity #fractal #spiral