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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Barth

function u(t) {

for(a=990,c.width=1920,x.font="99px a",i=0;i<20;i++)x.lineTo(99*i,9*S(i-t)+a);x.fill(),x.translate(a,a),x.rotate(C(t)/5),x.fillText("🚴",0,0)

May 22 2018 6:00 AM UTC

}// 140/140

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Cannot compress it, help me

u/prplz

Try c.width|=0. This uses the "bitwise or" operator on the width, which does nothing with zero. Any time width is written to, the canvas is cleared
u/Barth

Thanks
u/Barth

https://www.dwitter.net/d/8195
u/jellyedwards

with(x){...} saves on every x. : with(x){for(a=990,c.width=1920,font="99px a",i=0;i<20;i++)lineTo(99*i,9*S(i-t)+a);fill(),translate(a,a),rotate(C(t)/5),fillText("🚴",0,0)}
u/jellyedwards

he follows the hills a bit better here: with(x){for(a=990,c.width|=0,font="99px a",i=0;i<20;i++)lineTo(100*i,99*C(i-t)+a);fill(),translate(a,a),rotate(C(t)/3),fillText("🚴",200,0)}

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rbong

remix of d/10745 by u/rbong

function u(t) {

for(i=99;i--;)S(i)<T(S(i*t*S(t)))&&x.fillRect(t*99,i*9,2,9)

Oct 28 2018 9:47 PM UTC

}// 60/140

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Spirals

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cantelope

function u(t) {

eval(unescape(escape`儽⡁ⱂⱳ⤽㹻景爨欽猻欭ⴻ砮汩湥呯⡁⭓⡰⤪本䈫䌨瀩⩧⤩瀽㘮㌯猪欭活砮扥杩湐慴栨砮晩汬⠩⥽㭦潲⡭㴨琫⡶㴹㤩⤪㐬椽⡣⹷楤瑨簽〩⼵㭩ⴭ㬩儨瘪⡨㵩⭭┱⤥㍥㌭瘬⡧㴵〩⬨椯㌰簰⤪瘬㘫匨椭浼〩⨳簰⤻`.replace(/u(..)/g,"$1%")))

Feb 21 2019 7:08 PM UTC

}// 139/140

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colorized version: https://codegolf.tk/a/379

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Pascal

remix of d/21699 by u/Xen

function u(t) {

for(c.width=i=1e3;i--;x.arc(500,281,260,i+T(i+t/5)*C(t/1.1)*S(t/2)+t,i-t))x.lineWidth=.07;x.stroke();c.style.filter=`contrast(1.7)invert(.3`

Feb 17 2021 6:57 PM UTC

}// 140/140

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joeytwiddle

function u(t) {

delete window








for(s=i=2e3;i-=8;)x.fillRect(i,2800*t-4e3-i/2-(i*i%s)*2,9,99)

throw 'delete window'

Jun 26 2020 7:58 AM UTC

}// 106/140

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u/geb

#quine

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rodrigo.siqueira

remix of d/19627 by u/rodrigo.siqueira

function u(t) {

f=(X,Y,s,r)=>{s>1?f(X+s*S(r),Y+s*C(r),s/(3-t),r*5.5):x.fillRect(X+960,Y+540,1,.5)}
for(i=8e3;i--;c.style.filter=`sepia()`)f(0,0,266,t*i)

Aug 19 2020 1:38 PM UTC

}// 136/140

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Sand patterns of sound resonance

u/joeytwiddle

😼 donut

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JoshiRaez

remix of d/4446 by u/JoshiRaez

function u(t) {

for(i=0;i<10;i+=0.5){x.fillStyle=R(S(i)*255,S(i/2)*255,S(i/4)*255,1);x.fillRect(960-S(t+i)*10*t, 540-C(t+i)*10*t, 3, 3)}

Dec 28 2017 5:42 PM UTC

}// 120/140

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unknown81311

function u(t) {

test

Dec 3 2021 4:11 AM UTC

}// 4/140

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eval(unescape(escape󩭯󬬨󨼮󭽩󩍴󪍼󟝳󟝧󟝪󟜰󞼫󚽪󟌸󞼩󩭯󬬨󭼽󪜽󝍥󜼬󬜽󪬭󜬬󮌮󩭩󫍬󤽴󮝬󩜽󤬨󭬽󬜿󞜹󛝪󚬱󝜺󭼬󭬬󭬩󛍤󟝪󚬹󞜫󭌪󜬰󚭱󚬪󜭼󜌻󪜭󛜻󮌮󩭩󫍬󤭥󨽴󚍩󚭪󛍱󟽪󟬱󟼲󝜰󚽧󚬲󚽪󚭪󚬱󝬺󜌺󬬪󜜵󛍪󛍱󟽷󞬲󚜩󩼫󟝳󟜨󬬽󚼫󩌪󚬱󛬳󚬱󩜹󙜴󜌩󟌴󟽲󛜲󞭳󛝧󛼲󩜳.replace(/u../g,'')))

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magna

function u(t) {

T.valueOf=Math.random
x.setTransform(T,T,T,T,T,T)
x.fillStyle=R(0,0,0,T)
x.fillRect(999,999,99,99)

Jun 6 2018 3:45 PM UTC

}// 98/140

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Proof-of-concept of using valueOf to prevent function call parenthesis (()) to save space when a function is used at least 5 times.

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dogspace

function u(t) {

c.width|=0,b=(10*t>>>0).toString(2),b.split("").reverse().forEach(function(t,l){x.fillStyle=1==t?"black":"red",x.fillRect(20*l,400,10,400)})

Feb 16 2018 6:07 AM UTC

}// 140/140

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simple way of doing ACTUAL binary

u/BirdsTweetCodersDweet

Except it goes right to left... and way too fast to even see what is happening... I still think mine's better :P
u/BirdsTweetCodersDweet

d/6622 to be exact ;D