Dweets awesomed by u/enoua5

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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TGY

remix of d/24233 by u/TGY

function u(t) {

for(c.width=i=2e3;i--;x.fillRect(S(i/20^5)*99*m+500+S(t*3)*200,800+S(t*6)*59+m,m*3,-m*9))m=200/(99-(t+i/20)%99)

Oct 25 2021 2:10 PM UTC

}// 111/140

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#d3 city walk

u/ciaccodavide

wow

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Joachim

function u(t) {

eval(unescape(escape`󨼮󭽩󩍴󪌽󜼰󜌊󭍼󯌨󦌽󦜽󜌩󒭯󫭭󫽵󬽥󫝯󭭥󟝥󟜾󮽘󟝥󛭸󛝡󛍙󟝥󛭹󛝡󛼲󯜊󩭯󬬨󪜽󜭥󜼻󪜭󛜻󨜽󪝮󫭥󬭗󪝤󭍨󛼲󚝭󟜳󜌯󚌹󞜭󚍴󚽩󚜥󞜹󚜬󮌮󩭩󫍬󤭥󨽴󚍃󚍩󚜪󝜰󚭭󚼱󝜰󚽓󚍴󚬳󚜪󜼰󛝘󛍢󟜷󜌫󫜫󤼨󭌪󞜩󚬱󜌭󦜬󫜯󜼬󛝭󛼮󜼩󛍸󛭦󪝬󫍒󩝣󭌨󜌬󨬬󪜬󛬰󜜩`.replace(/u../g,'')))

Oct 25 2021 1:35 PM UTC

}// 140/140

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dead forest walk

u/Joachim

#interactive #d3
u/Joachim

move the mouse to look around
u/Xen

wow thats amazing!
u/vain

Very cool interactive 3d fly

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marc8

function u(t) {

c.width|=d=.01
function g(a,b,n,r){for(i=6.28;i>0;)x.arc(a,550,r+50*(S(b*t+i*n)>0),i-=d,i)}x.fill(g(1400,9,14,300));x.fill(g(600,-9,21,450))

Mar 20 2019 10:39 PM UTC

}// 140/140

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Very rough gears. Don't try this at home.

u/tomxor

With an arrow function there is enough space for some tapered gears :) g=(a,b,n,r)=>{ then i-=d,i+.05)
u/tomxor

Arrow function seems to need a space after the } though !
u/somebody

c.width+=0 and replacing d with .1 directly saves two bytes. might be able to improve the tapering or something
u/katkip

#gear
u/aleamb

amazing!

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batboy

function u(t) {

t==0?x.fillRect(0,0,1e5,1e5):0;
x.fillStyle="#fff"
for (i=0;i<100;i++)
x.fillRect(t*100,S(t)*100+540+(i%2==0?1:-1)|i*Math.random()*t,4.5,1)

Mar 18 2019 5:17 PM UTC

}// 139/140

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bridges

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vinca

function u(t) {

c.width|=0,F=(e=>{0!=e&&(x.beginPath(),x.arc(1e3+50*C((t+.1*e)%6.4),500+45*S((t+.13*e)%6.4),9*e,0,6.1),x.stroke(),F(e-2))}),F(130)

Mar 18 2019 3:42 AM UTC

}// 130/140

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vinca

function u(t) {

for(c.width|=0,x.font="2em'",r=40;r--;)for(i=360;i>0;i-=360/5/r)A=3.14*(i+t*(r+10)*2%360)/180,x.fillText("🍄",960+50*r*C(A),540+30*r*S(A))

Mar 17 2019 1:18 PM UTC

}// 137/140

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u/tomxor

I like how the ones around the center jiggle due to aliasing, it looks like they are all walking :P

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andrea270872

remix of d/12771 by u/andrea270872

function u(t) {

c.width|=K=1e3
A=[(t*97%11-5)*K,(t*89%13-6)*K,0]
P=t?P.map(([i,j,z,v])=>[i,j,(z+1)%99,x.fillRect(K+i/z,500+j/z,z,z)]):[A]
P[K]||P.push(A)

Mar 15 2019 7:44 PM UTC

}// 137/140

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Build-up!

Show more comments…
u/Xen

love it
u/pavel

103 for(c.width|=K=k=1e3;k--;z>0&&x.fillRect(K+(k*97/60%11-5)*K/z,500+(k*89/60%13-6)*K/z,z,z))z=(60*t-k)%99
u/pavel

Looks like the code you started with used Math.random at each step which made the ultimate position of each square at time 't' impossible to determine directly. Switching to instead use any function of just t makes it quite simple so there is no need to initialize stuff at time 0 and keep it updated.
u/pavel

I learned that in d/11421 to save chars and make d/11424
u/andrea270872

great. thanks very much
u/andrea270872

In my head I was thinking also that t*97%11 is a pseudo-random generator...
u/katkip

Satisfying

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spaceman_blanc

remix of d/12426 by u/spaceman_blanc

function u(t) {

c.style.background=R();for(i=325;i--;)x.fillStyle=`hsl(${-i},90%,90%,0.01)`,k=t/S(t*i),x.fillRect(960+k*1.8*T(i^t),524+k/C(i),i/9+9,i/9+9)

Feb 20 2019 10:59 AM UTC

}// 138/140

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I see the light, I see the light, I see the light.

u/metamero

RIP
u/joeytwiddle

#star

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spaceman_blanc

remix of d/12383 by u/DataMeta

function u(t) {

c.style.background=R();for(i=325;i--;)x.fillStyle=`hsla(${i},99%,50%,.02)`,k=912*S(t/i),x.fillRect(960+k*1.8*T(i^t),524+k/C(i),i/9+9,i/9+9)

Feb 19 2019 8:49 AM UTC

}// 139/140

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2001

u/geb

#background
u/spaceman_blanc

To any remixers, you can drop the "c.style.background=R();" from the start and you will have 24 chars to play with.
u/katkip

Nice
u/katkip

Not really u/spaceman, on upload, the canvas will be reseted to white
u/spaceman_blanc

yeah youre right, didnt realise that. I mean you could still do something cool with 24 chars and white back ground i guess

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Xen

remix of d/12413 by u/Xen

function u(t) {

for(i=2e3;i--;)x.fillRect(i+S(C(t/3)*i),t*99,1,1)

Feb 18 2019 6:05 PM UTC

}// 49/140

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u/DataMeta

This one is smooth. Surely there is an even more golfed moire possible
u/geb

#background

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