Dweets awesomed by u/markuspeitl

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: #Opposites

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jellyedwards

function u(t) {

c.style.filter=`invert(`
x.strokeStyle='#0004'
for(j=2e3;j--;R=j>999)t||x.ellipse(j-R*C,j*.7,300*S(j/C)**(2+R/2),C=99,j/C,0,7)
t||x.stroke()

Mar 7 2021 10:11 PM UTC

}// 140/140

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X-ray of a neck #fracture

u/danny@hille.dk

nice
u/jellyedwards

Thanks!

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markuspeitl

function u(t) {

x.beginPath()
X=t%30*170+100*S(t)+1.2e3
x.moveTo(X,1e3)
x.arcTo(0,0,0,1,1e3)
K=255
g=t/2
x.strokeStyle = R(K*T(g),K*S(g),K*C(g))
x.stroke()

Jun 16 2019 11:30 PM UTC

}// 139/140

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taupelink

function u(t) {

w=1920;h=1080;for(i=99;i--;){X=(r=Math.random)()*w,Y=r()*h
x.fillStyle=`hsl(${X/6-99*t%360},90%,${Y/12}%,.1)`
x.fillRect(X,h-Y,s=r()*99,s)}

Jun 15 2019 6:11 PM UTC

}// 139/140

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hsl color rotation with random rectangles

u/joeytwiddle

Stains: w=1920;h=1080;r=Math.random;for(i=99;i--;)X=r()*w,Y=r()*h,x.fillStyle=hsl(${X/6+999*t},90%,${Y/21+20}%,.013),x.fillRect(X,h-Y,s=r()*300,s)

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henrosaurus

function u(t) {

c.width|=f=S(t)* S(t);p=600
for(i=0;i<60;i++)
x.arc(f+p, f+p, Math.abs(S(t)*350), S(t)+i, S(t)*0.1*i+f)
x.lineWidth=9
x.stroke()

Jun 14 2019 5:33 PM UTC

}// 129/140

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jsut some rubber ball rollin'

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joeytwiddle

remix of d/9674 by u/f8f82804

function u(t) {

with(x)for(i=c.width^=0;beginPath(),i--;fill())arc(960+(i*960-i*i)**.5*S(a=t-i),48+i,9*(C(a)*S(i/306))**.3,0,7)

Jun 14 2019 2:15 PM UTC

}// 111/140

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Just a little remix

u/katkip

#d3
u/joeytwiddle

No perspective, but proper flattening: with(x)for(i=c.width^=0;i--;fill())beginPath(),C(a=t-i)>0&&ellipse(960+(i*960-i*i)**.5*S(a),48+i,15*C(a),15*S(i/306),0,0,7)
u/joeytwiddle

Spirals: with(x)for(i=c.width^=0;i--;fill())beginPath(),C(a=(t|0)*i-C(t))>0&&ellipse(960+(i*960-i*i)**.5*S(a),48+i,15*C(a),15*S(i/306),0,0,7)

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comiccobe

remix of d/13488 by u/pavel

function u(t) {

for(x.fillRect(0,0,i=640,i);z=--i**.3;x.fillStyle=R(0,500/--z))x.setTransform(s=20/z,0,0,s,0,0),x.fillText('woocode'[i%7],i%z*99,t++%z*60)

Jun 14 2019 8:03 AM UTC

}// 138/140

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u/katkip

cow cow cow cow

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joeytwiddle

remix of d/14155 by u/pavel

function u(t) {

eval(unescape(escape`睩瑨⡸⥦潲⡥㵮㴾渦㠿㠭渥㠺渥㠬挮睩摴栽椽㈱㜶㭪㵩ⴭ㸾㜬椾ㄲ㜻慲挨㘰〫攨樫㌩⨱㌰ⰲ㘰⭥⡪ⴱ⤪㤰⭬⨳⵩⼱ㄮ㌬㤹⵩┲⨴〬愽椥㐯⸶㐬愩⥬㵩┱㈸Ⱨ汯扡汁汰桡㴱⵬⨪⸲⼲⸶㌬椥㑼籢敧楮偡瑨⡦楬氨⤩`.replace(/u(..)/g,"$1%")))

May 28 2019 4:28 PM UTC

}// 139/140

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Pavel's columns -> Escher's stairs

u/joeytwiddle

I don't know why two of the sides are flat ¯\_(ツ)_/¯
u/joeytwiddle

Wait this code has an arc in it? o_O
u/katkip

nice
u/joeytwiddle

globalAlpha=.5-l**.2/5.26 for a softer aesthetic
u/donbright

wonderful

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markuspeitl

function u(t) {

x.beginPath()
X=t%20*150+200*S(t)
x.moveTo(X,1e3)
x.lineTo(X+600*S(t*1.5),0)
K=255
x.strokeStyle = R(K*T(t/2),K*S(t/2),K*C(t/2))
x.stroke()

May 7 2018 9:09 PM UTC

}// 139/140

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u/prplz

I love interference patterns!

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nix

remix of d/452 by u/iverjo

function u(t) {

for(i=4e3;i--;)c=15+99*S(t+4*S(t*9)),x.fillStyle=R(0,c,99+c),s=45/(9-(i/99)%t),x.fillRect(960+99*s*C(i),540+25*s*S(2*i),S(t-i),t*t)

May 7 2018 8:34 PM UTC

}// 131/140

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iverjo

remix of d/8018 by u/cesque

function u(t) {

t*=4;c.width|=0
x.lineWidth=10
for(i=1;i<9;i++) {
  x.beginPath()
  x.arc(960,540,50+(i*50),t+(i*3)+S(t),t+(i*3.1)+3.6)
  x.stroke()
}

May 7 2018 5:14 PM UTC

}// 134/140

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