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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katkip

remix of d/4001 by u/itsjustmustafa

function u(t) {

c.style.background=R();for(c.width|=i=5;i--;x.font=`2cm"`)x.fillText([..."🌞🌍👽🚀."][i],880+i*150*S(t*i),590+i*90*C(t*i))

Jun 23 2019 8:37 AM UTC

}// 119/140

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17 bytes less #golf

u/donbright

bwahaha

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yokljo

function u(t) {

for(i=125;i--;)for(j=99;j--;x.fillRect(i*16*(j+93)/99,j*12+o,28,9))o=C(i/5+t*9+C(j/3))*35*S(j/5),x.fillStyle=`hsl(${t*o},${o+j}%,50%)`

Jun 21 2018 10:35 PM UTC

}// 134/140

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u/magna

This looks amazing!
u/yokljo

Thanks 👍
u/iverjo

Impressive! Rainbow lava?

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katkip

function u(t) {

if(t<.7){x.font=`${40+t*9}em'`;x.fillStyle=R(t*399,t*199);x.fillText("3D",400+t*299,600+t*199),x.strokeText("3D",400+t*299,610+t*200)}

Jun 12 2019 11:06 AM UTC

}// 134/140

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#d3 #text #perspective

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artfarnaa

function u(t) {

 for (c.width|=a=48;--a;x.arc(960+S(G+t)*400,
 540+C(t+G*1)*400,a%2*137*Math.abs(S(t))*8,0,
 6.2832))x.moveTo(G=a/2|0,0)
 x.fill('evenodd')

Aug 8 2017 1:14 AM UTC

}// 140/140

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Agnes

function u(t) {

w=c.width+=e=0;q=y=32;t&&f++<w?S+=(t<<f).toString(36)[0]:(f=0,S='');x.font=q+"px A";[...S+"🐒"].map(s=>x.fillText(s,(e+=q)%w,y+=q*!(e%w)))

Mar 15 2018 12:25 PM UTC

}// 137/140

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Really wanted this to use a more sophisticated random character generator but I couldn't figure out how to fit it. Thanks to Yonatan for golfing tips (.map instead of .forEach and S being a string instead of an array)!

u/joeytwiddle

Monkey with Typewriter
u/joeytwiddle

Will this eventually write The Complete Works of William Shakespeare?
u/zanella

If AnanFay remixes this, then yes, it will eventually write The Complete Works of William Shakespeare.

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pavel

function u(t) {

for(let i=1920,f=(x,n=420,a=0,b=0)=>a*a+b*b<n?f(x,n-1,a*a-b*b+x,2*a*b+.1133-t/4615):n/420;i--;)x.fillRect(i,180*t,f(i/8e5-.7467),3)

Apr 18 2020 5:59 AM UTC

}// 131/140

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(X=-0.7453, Y=0.1127, R=6.5e-4) section of the #mandelbrot set

u/pavel

This version draws 1x3 pixels to speed up rendering. for(let i=2e3,f=(x,n=420,a=0,b=0)=>a*a+b*b<n?f(x,n-1,a*a-b*b+x,2*a*b+.1133-t/13845):n/420;i--;)x.fillRect(i,60*t,s=f(i/8e5-.7467),s) looks better in fullscreen but is 3x as slow.
u/pavel

let and the automatic scoping of args in f makes this _really_ quick. I can increase the loop to 4e3 iterations and still have 60fps on my machine. Would be interesting to speed this up by rendering multiple rows per frame.
u/katkip

all dweets made by u/pavel are genius
u/Xen

godlike!
u/Qwitter

agreed !!!!

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amator

function u(t) {

for(c.width|=i=100;--i;)for(j=60;--j;)
x.fillStyle=R(C(i)*150,S(j)*150,0),
x.fillRect(i*(b=25),j*b,b,(C(t*j*i/15*t)+1)*b/2)

Jul 18 2018 10:12 PM UTC

}// 123/140

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Xen

function u(t) {

x.globalCompositeOperation='xor'
x.fillRect(123-C(t*=45)*t,678-S(t)*t,t,t)

Oct 26 2022 1:45 AM UTC

}// 74/140

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..74 bite my bytes////.... legit dweet name.

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KilledByAPixel

remix of d/23449 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`󭽩󭍨󚍸󚝲󟝲󟜾󣝡󭍨󛭲󨝮󩍯󫜨󫍩󫭥󥽩󩍴󪌽󜼰󚜬󩭩󫍬󤽴󮝬󩜽󦼧󘽥󜼱󙼬󙼣󩭥󜬧󛌧󘼳󝌹󙼬󙼣󩭦󩬧󧝛󬬨󭌿󩭩󫍬󤭥󨽴󚌮󛬮󠜩󞭁󟝛󜌬󜌬󜜹󜬰󛌱󜌸󜍝󚜪󝍼󜍝󛍷󟝁󦽩󟜲󚼨󬬨󬽴󬭯󪽥󤭥󨽴󚌮󛬮󠜩󚜼󛬵󚝼󜍝󚬽󬌽󬬨󚜬󬌼󛬵󟽁󦽁󦽩󧜽󭼯󬌭󭼬󪜭󜭝󚼽󭼺󜌻`.replace(/u../g,'')))

Aug 7 2021 3:17 AM UTC

}// 139/140

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Mondrian Generator v2

u/KilledByAPixel

Reload for a new Mondrianesque composition!
u/donbright

awesome

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larzuk

function u(t) {

c.width=w=80;for(i=0;++i<4e3;)u=i%w,v=i/w|0,z=-t*20+i/w,x.fillStyle=R(m=(S(z/3)*S(u*5)*4+u)^(C(v*5)+v),m*1.7,m*2),x.fillRect(u,v,1,1)

Oct 12 2019 11:27 PM UTC

}// 133/140

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Rain droplets