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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iverjo

function u(t) {

i=W=c.width=960;X=250*t%W;G=(1-S(X/29))*.3;x.lineWidth=80;x.arc(X,200,40,G,6.29-G);x.stroke();while(i>X)x.fillRect(i,190,20,20),i-=190

Jul 22 2016 12:34 AM UTC

}// 134/140

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Pacman, inspired by tamberlo

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u/tamberlo

thank you for cleaning up my idea ;) your solution is very neat
u/iverjo

Thanks :) It lacks the yellow color, though. I'm not sure I could hack that in without removing the rectangles
u/iverjo

Golfed a bit (128 characters): i=W=c.width=960;x.lineWidth=80;x.arc(X=250*t%W,200,40,G=.3-.3*S(X/29),6.29-G);x.stroke();for(;i>X;i-=190)x.fillRect(i,190,20,20)
u/donbright

lol
u/iverjo

#pacman
u/rodrigo.siqueira

#atari

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metamn

remix of d/10487 by u/ms.roboto

function u(t) {

c.width=1919;x.lineWidth=9
c.onclick=e=>S=[e.clientX*3.4,e.clientY*3.4,0,0,6.3]
S[2]<2000&&(x.beginPath(),S[2]+=9,x.arc(...S),x.stroke())

Oct 25 2018 6:38 AM UTC

}// 137/140

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onclick

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BalintCsala

function u(t) {

c.width=500
x.scale(20,20)
for(X=20;X--;)for(Y=20;Y--;x.fill())for(i=6,x.beginPath();i--;)x.lineTo(C(a=i*1.04+S(t))+X*2+Y%2,S(a)+1+Y*1.7-1)

Sep 11 2018 7:13 PM UTC

}// 139/140

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Works everywhere

u/joeytwiddle

Very good!
u/joeytwiddle

Inspired by: https://twitter.com/beesandbombs/status/1006…
u/f8f82804

#beesandbombs

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Blane

function u(t) {

t==0?f=0:f++;"àøü?þþcÿÁçÁçÿÿÿ>@`0à".charCodeAt(~~t)>>(f%60)&1?x.fillRect((~~t-~~(t%2))/2*67,f%60*67+~~t%2*536,67,67):t;

Mar 5 2018 10:18 PM UTC

}// 131/140

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u/joeytwiddle

#yinyang

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erin

remix of d/13203 by u/somebody

function u(t) {

c.width|=0;for(a=t%1;a<9;a++)x.arc(960,540,a**4,0,7),x.stroke()

Apr 7 2021 2:02 AM UTC

}// 63/140

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golfing this infinite zoom thing

u/EliteDaMyth

for(c.width|=0,a=t%1;9>a++;)x.arc(960,540,a**4,0,7),x.stroke() 62

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1x4x9

remix of d/2061 by u/recursive

function u(t) {

t||(h=[])
for(n=i=200;--i+n;x.fillRect(i/(1-t/16)+n,(9e3-g*50)/(32-t),9,g))
g=h[i]=h[i]+T(i+t/9)/5-.2||0,x.fillStyle=R(g-t*9,255-g,S(t)*256)

Mar 12 2017 7:40 PM UTC

}// 140/140

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ximavus

function u(t) {

x.reset()
for(i=60;i--;){x.fillStyle=R(s=S(t+i/9)*99+99,s,s);x.fillRect(i*32,540,32,S(C(i*32+t*9)+t*9)*500)}

Nov 15 2025 9:16 PM UTC

}// 108/140

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Wobbly sine-cosine

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KilledByAPixel

function u(t) {

t?0:c.outerHTML=`𝓣𝓮𝔁𝓽 𝓐𝓻𝓮𝓪<br><textarea placeholder="Type here." rows=16 cols=70 style="border:solid;overflow:scroll;resize:none">`

May 27 2019 11:33 PM UTC

}// 131/140

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𝓣𝓮𝔁𝓽 𝓐𝓻𝓮𝓪 𝓓𝓮𝓶𝓸

u/KilledByAPixel

Example of how to create a text area with placeholder text, set rows/cols, solid border, scrollbars and disabled resize.
u/KilledByAPixel

#Tool #Example
u/KilledByAPixel

Quotes around style aren't necessary.

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pythech

remix of d/8455 by u/pythech

function u(t) {

with(x)for(i=200;i--;fillRect(i*9,!fillText("👤",i%9*200,i*30),9,2e3))fillStyle=`hsl(209,33%,${Math.abs((i+t*50)%62-31)*2+9}%)`,font="9em x"

Jun 6 2018 8:50 PM UTC

}// 139/140

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works with apple emojis only

u/pythech

optical illusion, stare at it for a few seconds
u/DataMeta

cool!
u/iverjo

#opticalillusion

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gamesthatexist

function u(t) {

c.width=1920;for(i=0;i<950;i++)x.ellipse(1e3+500*T(i*.1),500+50*T(t+i*.1),60,30,30,90,20);x.strokeStyle=R(15,105,125,215);x.stroke()

Dec 31 2017 6:13 PM UTC

}// 132/140

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