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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KilledByAPixel

function u(t) {

c.width|=0
for(i=282;i--;x.fillText("☻♥"[i>t*2?0:(x.fillStyle='red',1)],49+(i%21)*88+S(i*i)*19,85+(i/21|0)*74+S(i**3)*11))x.font="5em'"

Aug 5 2019 3:39 AM UTC

}// 135/140

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282 PEOPLE have DIED in mass shootings just THIS YEAR in the United States!

u/13thptr

:/
u/katkip

sad
u/joeytwiddle

#tribute
u/deobfuscate

this just feels too dark

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Agnes

remix of d/8945 by u/firegodjr

function u(t) {

F=n=>{return C(n)*C(n)+S(n)*S(n)<1}
x.drawImage(c,0,l=10)
for(j=214;j--;)x.fillStyle=F(j^t*60)?"#0f0":"#000",x.fillRect(j*l,0,l,l)

Jul 28 2018 8:15 PM UTC

}// 130/140

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Visualising numbers for which sin(x)*sin(x) + cos(x)*cos(x) < 1.

u/donbright

wait wait wait wait wait.... sin^2 + cos^2 = 1. im so confused. is this about the imprecision of floating point arithmetic?
u/donbright

this is absolutely fascinating... set it ==1 or >1 gives different patterns.
u/donbright

also fun... return S(n)/C(n)==T(n)

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danny@hille.dk

remix of d/23417 by u/mxfh

function u(t) {

w=c.width=255
for(m=4e4;m--;)x.fillRect(j=m%w,i=m>>8,((i-j&i+j)*t&w)/w,1)

Jul 29 2021 6:18 PM UTC

}// 73/140

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golf and play

u/danny@hille.dk

Really bad performance, but only 73 bytes :-)

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anotherkitten

function u(t) {

for(t+=i=15;i--;x.beginPath(x.fill()))p=i+t%1,x.fillStyle=`hsl(${(p-t)*20} 50%${i-t&1?40:60}%`,x.arc(960+C(p+t)*70,540+S(p-t)*70,6*p*p,0,7)

Oct 22 2018 4:10 AM UTC

}// 139/140

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wobbly zone

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helenka

function u(t) {

c.width=1920; /* clear the canvas */
  for(i=0;i<9;i++)
  x.fillRect(600+i*100+S(t)*300, 400, 50, 200) /* draw 50x200 rects */

Apr 15 2017 5:24 PM UTC

}// 126/140

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emeraldNoon

function u(t) {

c.width=1920 // clear the canvas
for(i=0;i<9;i++)
x.fillRect(400+i*100+C(t)*300,400,50,200) // draw 50x200 rects

Oct 26 2020 9:36 PM UTC

}// 112/140

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Kamyu

function u(t) {

c.width=1920;k=6;a=60;p=2*Math.PI;for(h=p;h>0;h-=0.01){x.globalAlpha=h/p;l=h+t;x.fillRect(960+k*a*C(l)+a*C(k*l),540+k*a*S(l)-a*S(k*l),9,9)}

Dec 28 2017 8:07 AM UTC

}// 139/140

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magna

function u(t) {

g=x=>S(y/8+t)
eval(unescape(escape`睩瑨⡸⥦潲⡦楬汒散琨〬〬眽挮睩摴桼㴰ⱷ⤬椽㈵㘻椭ⴻ晩汬⠩⥢敧楮偡瑨⠩ⱡ牣⠨堽椥ㄶ⬱⤪㘴Ⱘ礽⡩㸾㐩⬱⤪㘴ⰳ㈪䵡瑨⹡扳⡶㵧⡘⤩ⰰⰷ⤬晩汬却祬攽刨眬欽⡶㸰⤪眬欩`.replace(/u(..)/g,"$1%")))

Nov 3 2020 4:50 PM UTC

}// 139/140

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https://tixy.land runtime. Enter code in the arrow function on the first line.

u/magna

Uncompressed: with(x)for(fillRect(0,0,w=c.width|=0,w),i=256;i--;fill())beginPath(),arc((X=i%16+1)*64,(y=(i>>4)+1)*64,32*Math.abs(v=g(X)),0,7),fillStyle=R(w,k=(v>0)*w,k)
u/magna

x/y offset fix in d/20502

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The42ndTurtle

remix of d/12856 by u/The42ndTurtle

function u(t) {

function g(y,c){m=0
for(i=0;i<=t;i+=.01)m+=y(y((i**2)/2+c))*i*.01
return m}
for(j=0;j<50;j++)
x.fillRect(g(C,j)*100,g(S,j)*100+540,2,2)

Mar 22 2019 10:32 PM UTC

}// 136/140

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beads

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sigveseb

function u(t) {

x.fillStyle=R(a=2e3,a,a,.1);x.fillRect(0,0,a,a);x.font='99px Arial';for(i=4;i--;)x.strokeText('yolo'[i],830+i*59+S(t+i)*20,540+S(t*9+i)*20)

Jan 8 2016 1:45 AM UTC

}// 139/140

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u/lionleaf

#yolo #text