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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Glastohead

remix of d/701 by u/sigveseb

function u(t) {

(F=Z=>{for(x.fillStyle=R(W=1/Z*4e3,W/2,W/4),i=Z*Z*2;n=i%Z,m=i/Z|0,i--;n%2^m%2&&x.fillRect((n-t%3-1)*W,(S(t)+m-1)*W,W,t));Z&&F(Z-9)})(36)//rm

Dec 27 2017 12:01 AM UTC

}// 140/140

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New_Core

remix of d/20460 by u/pavel

function u(t) {

with(x)for(c.width|=i=226;i--;beginPath(fill()),fillStyle=R(T,i),T=(65-65**S(t+i)))for(j=6;j--;)lineTo(T*S(q=j*1.05)+i%38*59,T*C(q)+i%12*99)

Nov 4 2020 7:02 PM UTC

}// 140/140

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well... almost

u/pavel

-12 chars with(x)for(c.width|=i=226;i--;beginPath(fill()),fillStyle=R(T,i))for(j=6;j--;)arc(i%38*59,i%12*99,T=65-65**S(t+i),q=j*1.05+11,q)

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Yogeshp3

remix of d/6886 by u/Yogeshp3

function u(t) {

c.style.filter="blur(0.5vh)sepia()invert(1";
w=Math.max((450-9*t),0)
x.fillRect(c.width/2+C(2*t)*w,c.height/2+S(2*t)*w,15,15);

Feb 13 2020 12:42 PM UTC

}// 126/140

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Reverse spiral.. Loving the filters on canvas!

u/Xen

looks nice
u/Yogeshp3

thanks :)

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KilledByAPixel

function u(t) {

f=(s,w)=>(m=(S(i*s/1e3)*199+99)*t%w,m>w/2?w-m:m)
for(i=1e3;--i;)x.fillStyle=`hsla(${i},99%,${f(4,99)}%)`,x.fillRect(f(2,3831),f(5,2151),9,9)

Apr 15 2019 4:24 AM UTC

}// 140/140

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1000 squares #bounce for you.

u/Xen

it gets better the longer you leave it ;)
u/KilledByAPixel

It does descend into chaos eventually but it takes a while.

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tomxor

remix of d/26186 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`𩠽𚁘𛁙𛁚𛁁𛁥𚐽🡸𛡦𪑬𫁒𩑣𭀨𩐿𜀺𩀪𦀬𩀪𦐬𭰽𩑼𯁤𚡚𛰮𞀬𭰬𦠾𛠲𙠦𩠨𦀫𦠪𤰨𠐩𛁙𛑚𚡃𚁁𚐬𦠪𛠹𝐬𠐫𛠰𝰩𛁚𚡙𙐱🠮𞀦𙡦𚁘𛁙𛁚𚠮𞀬𠐫𦐥𜠭𜐩𚐻𩀽𜐫𭀪𭀯𜠻𮀮𩡩𫁬𤱴𮑬𩐽𤠨𪰽𜠵𝐭𭀪𝠰𛁫𚱤𚠴𛁫𚐻𩠨𩀪𝑥𞐥𜡥𜰬𩀫𜠵𝐬𞐬𜀬𜡥𜰩`.replace(/u../g,'')))

Sep 25 2022 7:01 PM UTC

}// 139/140

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Tropical Swamp Forest 🌳

u/KilledByAPixel

looks like a hurricane!

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ciaccodavide

function u(t) {

for(c.width|=i=3e2,d=1-i/2e2;i--;)x.beginPath(x.arc(960,540+S(t+i/3*99)*99*d,i*4,0,7),x.stroke())

Oct 15 2021 11:55 AM UTC

}// 97/140

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u/joeytwiddle

I perceive movement inwards, but the code says the only movement is up and down! 🤯 Want proof? Try growing i slowly with i=t*3|0. Or try reversing the movement with t-i/3 instead of t+i/3.
u/joeytwiddle

This is also a rare-ish example of inverted Moire, by which I mean the interference patterns which most stand out are white rather than black.
u/joeytwiddle

The remix simplifies the effect, making it a little easier to see what's happening.

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rep_movsd

function u(t) {

eval(unescape(escape`𭁼𯀨𡀽𫡥𭰠𢑭𨑧𩑄𨑴𨐨𨰮𭱩𩁴𪀽𥰽𜠵𝐬𢀽𥰩𚐊𩡯𬠨𨐽𡀮𩁡𭁡𛁩🐰𞱩🁗𚡈𞱩𚰫𚐊𩡯𬠨𦐽𛠳𚰨𪐯𥰩𛰲𞐬𦀽𚁩𙑗𚐯𜠹𛁪👩𚠴𛁋👃𚁘𚐭𤰨𦐪𠰨𦀫𦐩𚐪𠰨𭀫𦀯𦐩𚱴𛁯🐱𞱯🀴𞰫𚱯𚑡𦱪𚱯𛐱𧐽𠰨𢰪𫰩𚠨𨑛𪠫𜱝👗𚐊𮀮𬁵𭁉𫑡𩱥𡁡𭁡𚁄𛀰𛀰𚐻`.replace(/u../g,'')))

Oct 4 2021 1:44 PM UTC

}// 140/140

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Plasma

u/primo

Very nice.
u/sigveseb

solid
u/magna

smooth
u/rep_movsd

It uses pretty much the same formula as the previous dweet, but just prettier

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ianertson

function u(t) {

c.width=1920;
var u=0;
u+=30*T(t);
x.lineWidth=u*1.4;
if(u<-0.1)u=1;
x.arc((1920/2) + S(t)*320,(1080/2)+C(t)*320,u,0,2*Math.PI);
x.stroke();

Dec 27 2017 8:33 AM UTC

}// 140/140

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Xen

remix of d/13257 by u/Xen

function u(t) {

for(c.width=(Z=50+50*C(t/.7))*19,i=9,x.fillRect(0,0,2e3,2e3);i--;)x.clearRect(Z*4+i*Z+S(t)*Z*3,Z*4,Z/2,Z*2)

Apr 16 2019 11:58 PM UTC

}// 107/140

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#default Res-Pulse inverted

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K23st3

function u(t) {

p=23,q=61800
for(b=0;b<p;b++){
      x.beginPath()
x.moveTo(q,b*t*q)
x.globalAlpha =  
   x.quadraticCurveTo(t,p,t,p)
x.stroke()
}

Oct 14 2018 3:52 AM UTC

}// 130/140

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