Dweets awesomed by u/saon

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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21medals

remix of d/12297 by u/21medals

function u(t) {

for(c.width|=0,j=32,x.lineWidth=4;b=2,j--;)for(i=j;b--;i+=15)x.lineTo(960+C(a=t*i/16)*i*13,540+S(a)*i*13);x.stroke()

Feb 11 2019 9:39 PM UTC

}// 116/140

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f8f82804

remix of d/12261 by u/due

function u(t) {

for(c.width|=p=6.2832,x.scale(9,9),x.lineJoin='round',i=13;j=i--*p/4;x.arc(107+45*C(A=j-t+i*p/12),60+45*S(A),14,(a=(t+j)%p)-1,a));x.stroke()

Feb 11 2019 5:56 PM UTC

}// 140/140

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remixed with cleaner line joins

u/rnbw

reminds me of kanizsa's triangle for some reason

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ycjung

function u(t) {

c.width|=0;for(i=0;i<100;i++)for(j=0;j<10;j++){x.fillRect(960+i*10*S(j),540+i*10*C(i*(S(t/20))),i%(j*j),i*j/10);}

Feb 11 2019 3:28 PM UTC

}// 113/140

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False sense of space

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23_Skidoo

remix of d/12291 by u/23_Skidoo

function u(t) {

for(s=24,d=360,i=4e3;i--;f=(C(X)*s+Y)/d-t,x.fillStyle=`hsla(${S(f)*d} 66%${C(f*9)*C(f*s+t)*51+Y/d*8}%`)x.fillRect(X=i%82*s,Y=~~(i/82)*s,s,s)

Feb 11 2019 9:11 AM UTC

}// 140/140

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u/pavel

FYI the trick of not putting a delimiter between s and l in the hsl call does not work in Safari, its all just black.
u/sigveseb

Kinda looks like a knitted sweater :)

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rodrigo.siqueira

function u(t) {

c.width|=X=Y=Z=6;for(i=3e3;i--;)
X+=.1*(Y-X),
Y+=.01*(X*(29-Z)-Y),
Z+=.01*(X*Y-1.6*Z),
x.fillRect(960+X*30+Y*C(t*2)*10,1130-Z*22,6,9)

Feb 11 2019 12:26 AM UTC

}// 133/140

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Butterfly effect using Lorenz nonlinear equations with chaotic behavior. #Lorenz #attractor

u/katkip

#cute btw

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katkip

function u(t) {

c.width^=d=[];q=50*t|0;for(k=q;k--;)d.push((C(k*k)*3))
for(i in d.sort(g=(a,b)=>a-b))x.fillRect(1920/q*i,540+S(d[i]*d[i]+t)*300,2e3/q,999)

Feb 10 2019 3:10 PM UTC

}// 138/140

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Fluid sin, thx u/Undefined for golf help

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geb

remix of d/12249 by u/pavel

function u(t) {

n=99;for(c.width|=p=710/113,x.scale(9,9),i=n;j=i--*p/n;x.arc(n+15*C(A=t/n+i*p/3),66+15*S(A),n/3,a=(j-t),a+1));x.stroke()

Feb 10 2019 12:48 PM UTC

}// 120/140

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due

remix of d/12249 by u/pavel

function u(t) {

for(c.width|=p=2*Math.PI,x.scale(9,9),i=13;j=i--*p/4;x.arc(107+45*C(A=j-t/4+i*p/12),60+45*S(A),14,(a=(t+j)%p)-1,a));x.stroke()

Feb 9 2019 9:27 PM UTC

}// 126/140

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Looks like a trippy fidget spinner

u/katkip

XD

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pavel

remix of d/12230 by u/pavel

function u(t) {

for(c.width|=p=2*Math.PI,x.scale(9,9),i=13;j=i--*p/6;x.arc(107+45*C(A=j-t/4+i*p/12),60+45*S(A),14,a=(t+j)%p,a));x.stroke()

Feb 8 2019 8:33 PM UTC

}// 122/140

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I like how the corners are "walking"

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katkip

remix of d/12236 by u/butcherfly

function u(t) {

q=t/4;for(i=0;i<198;i++){x.fillStyle=R(128+C(t*25-i/9)*128);x.beginPath();x.arc(960+S(i*q+t)*200,540+C(i*q+t)*200,1200-6*i,0,7);x.fill()}

Feb 8 2019 12:27 PM UTC

}// 138/140

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