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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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solendil

function u(t) {

d=(V,D)=>x.fillRect(X,Y,X+Y+D&8,1,x.fillStyle=['#D23','#24A','#000','#FF0'][0x66ba6545>>(V>>5&15)*2&3])
for(X=2e3;X--;d(X,0))d(Y=frame,4)

Oct 23 2020 9:57 AM UTC

}// 137/140

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Four colours tartan uncompressed and full-res ! Thx Pavel !

u/danny@hille.dk

nicely done sir 🧐
u/pavel

Beautiful!
u/Xen

love it!
u/pavel

I shaved off 12 more chars for(i=4e3;X=--i>>1;x.fillRect(X,Y,1,X+Y+8*i&8))Y=60*t,x.fillStyle=['#D23','#24A',R(),'#FF0'][0x66ba6545>>((i%2?Y:X)/16&30)&3]

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solendil

function u(t) {

eval(unescape(escape`𪑦𚀡𭀩𮰊𨰮𭱩𩁴𪀽𝐱𜠊𩀽𚁖𛁄𚐽🡻𮀮𩡩𫁬𤱴𮑬𩐽𦰧𬡥𩀧𛀧𘰰𜀰𙰬𙰣𡡆𜀧𧑛𙰰𜀰𜀱𜀰𜀰𜐱𜐲𜐱𜐧𦰨𥠾🠳𚐥𜐶𧑝𞰨𦀫𦐫𡀩𙐵🀳🱸𛡦𪑬𫁒𩑣𭀨𦀬𦐬𜐬𜐩𞠰𯐊𩡯𬠨𦀽𝐱𜠻𦀭𛐻𚑦𫱲𚁙🐲𞀸𞱙𛐭𞰩𩀨𦐬𜠩𛁤𚁘𛀰𚑽𘀊`.replace(/uD./g,'')))

Oct 22 2020 1:22 PM UTC

}// 131/140

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Nemo me impune lacessit

u/solendil

Look into the code: it's easy to generate your own Tartan : ['red','#000','#FF0']['0000100001112111'[(V>>2)%16]
u/Xen

nicely done!!!

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mohd-akram

function u(t) {

c.width+=0;x.fillRect(0,0,1920,1080);θ=5/7*S(9*t)**2;x.strokeStyle='#ff0';x.lineWidth=99;d=1e3;x.arc((t*d)%3e3-d,540,50,θ,-θ);x.stroke()

Dec 29 2017 9:51 PM UTC

}// 136/140

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u/quuxman

I was hoping to shrink it to the point of adding little dots, but I don't think it's possible
u/quuxman

I was hoping to shrink it to the point of adding little dots, but I don't think it's possible
u/quuxman

c.width+=0 x.fillRect(0,0,w=2e3,w) x.fillStyle='#ff0' x.moveTo(a=t*500%w,b=540) x.arc(a,b,100,m=S(t*15)*.4+.4,-m) x.fill()
u/mohd-akram

Yeah, that was my initial goal :D
u/mohd-akram

c.width+=0;x.fillRect(0,0,w=2e3,w);y=540;t=t*y%w;for(i=w;i>=0;i-=5e2)if(!i||t<i)x.beginPath(),x.lineWidth=l=i?20:99,x.arc(i||t,y,l/2,m=i?.01:S(t/l*2)**2,-m),x.strokeStyle=R(y,y,i&&y),x.stroke()
u/joeytwiddle

You could post the "too long" version on codegolf.tk if you like :)

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katkip

function u(t) {

x.fillStyle='cyan';x.fillRect(0,0,y=2e3,y);x.arc(960,540,3e2,0,7);x.fillStyle='yellow';x.fill();x.fillStyle='blue';x.fillRect(0,540,y,y);

Aug 19 2018 6:50 PM UTC

}// 137/140

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Challenge: add waves :)

u/magna

Add the following at the end: //🌊
u/katkip

XD
u/f8f82804

150: x[s='fillStyle']='cyan';x[r='fillRect'](0,0,w=2e3,w);x[s]='#ff0';x.fill(x.arc(960,540,3e2,0,7));for(i=w;i--;x[s]='blue')x[r](i,540+20*S(4*t+i/50),1,w)

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