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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Vftdan

remix of d/9831 by u/Vftdan

function u(t) {

c.width*=1;for(i=C(a=t*2)*6;i<8+S(t)*8;i+=.1,x.fillStyle=R(0,0,0,C(t*i)))x.fillRect(S(a+i)*200+960,C(t-i)*200+540,S(a)*50+30,C(a)*50+60)

Sep 14 2018 12:01 PM UTC

}// 136/140

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Axioplase

function u(t) {

t==0?x.fillRect(0,0,m=1e3,m):d=x.getImageData(0,0,n=m*S(t),n),
x.putImageData(d,new Date%m,new Date%1e2)

Mar 12 2026 7:06 PM UTC

}// 104/140

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copypasta

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rodrigo.siqueira

function u(t) {

c.width^=0 // TRY REMOVING THIS LINE
for(i=70;i--;){for(j=9;j--;){
x.font=2-j/6+"em'"
 x.fillText("🔴",i*30,540+j*S(i/10)*60*S(t*6))
}}

Dec 6 2018 2:33 AM UTC

}// 134/140

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Highs and lows

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f8f82804

function u(t) {

c.width=640;s=64;r=80;with(x)moveTo(X=h=180,h),lineTo(X+=s*C(t),h+(Y=s*S(t))),lineTo(X+=(r*r-Y*Y)**.5,h),lineTo(X+s,h),stroke()

Sep 12 2018 11:03 PM UTC

}// 127/140

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#reciprocating #pison #mechanism with the dimensions from d/9806

Show more comments…
u/donbright

c.width=640 x.stroke(new Path2D(M 180,190 l ${[[C(t)*64,Y=64*S(t)],[(80*80-Y*Y)**.5,-Y]]} 64,0))
u/donbright

that golfs it down from 127 to 98
u/donbright

ok we can go lower. 94: c.width=640 x.stroke(new Path2D(M 180,190 l ${[C(t)*64,Y=64*S(t),(80*80-Y*Y)**.5,-Y,64,0]}))
u/donbright

you have to put back tickmark right before M and right after 64,0]} .. dwitter comment seems to eat the backtick
u/f8f82804

yeah, in comments backticks are used for code blocks
u/f8f82804

I don't know if it's possible to escape it with a backslash like \ or fillStyle=\hsl(...)`
u/f8f82804

...apparently escaping does not work
u/f8f82804

also, that's an excellent path2d use! you should post a remix
u/donbright

i was trying to make a choo choo train but its too many chars

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wackytman

function u(t) {

c.width|=i=300
x.lineWidth=.5
while(--i)x.arc(600,600,500-S(i),i,S(t)*-i)
x.stroke()

Jan 4 2018 11:03 PM UTC

}// 84/140

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Fuck knows

u/DirtyDan

A crystal ball :O
u/joeytwiddle

Nice! I like it slow: S(t/99) And 960,540 if you want to centralise it.

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brentrb

function u(t) {

c.width=w=640
s=Math.floor(p=t?p+S(t)/5:3)
x.translate(w/2,180)
d=(p-3)/9
for(i=s;i--;x.lineTo(70,0))x.rotate(6.28/(s-1)+d+(d=0))
x.stroke()

Dec 27 2017 12:43 AM UTC

}// 140/140

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Xen

remix of d/11412 by u/rnbw

function u(t) {

if(t<.1){s=4}else{s=-s*.99}if(t<.2){x.fillStyle=''}else{x.fillStyle='#abc'}x.fillRect(0,540+s*9,1,1);~~(t/4)||x.drawImage(c,3/t*9-s-8,s*9)

Dec 14 2018 7:03 PM UTC

}// 138/140

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u/rnbw

i would have done it like this, really, but the white triangles on the side took away from it
u/Xen

the alternative i tried left a blur on the right :-(

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Odog8

function u(t) {

c.width=100
s="string"
x.fillText(s.split``,10,10)
x.fillText([...s]   ,10,20)

Oct 13 2022 3:37 PM UTC

}// 78/140

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Golfing tip

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TGY

function u(t) {

eval(unescape(escape`昽攽㸲㔵⩍慴栮牡湤潭⠩㭴㵥㴾砮瑲慮獬慴攨愽攪挮睩摴栬攪挮桥楧桴⤻琨⸵⤻砮晩汬却祬攽刨昨⤩㭸⹲潴慴攨⸳㔩㭸⹳捡汥⡹㴱⸰〱ⱹ⤻砮晩汬剥捴⠹㤬礽ⵦ⠩⼹ⰹⰭ㈪礩㭴⠭⸵⤻`.replace(/u(..)/g,"$1%")))

Jan 25 2021 11:29 AM UTC

}// 128/140

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another thingie :))

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leoseccia

function u(t) {

x.font=`4em serif`;x.fillRect(0,0,1920,1080);
for(i=0;i<=850;i+=5){b=t+i*C(t/20);x.fillText(i%3?'✨':'🎇',S(b)*(160-i)+900,C(b)*(160-i)+550)}

Feb 1 2019 1:30 PM UTC

}// 139/140

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version 2 :-p