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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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Purpzie

remix of d/10210 by u/Purpzie

function u(t) {

r=[0,1];for(i=2;i<1e3;i++)r.push(r[i-1]+r[i-2])
x.font='99px"'
x.fillText(r.join(' '),0,500)

Oct 3 2018 8:31 PM UTC

}// 92/140

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Fibonacci sequence! Only 46 characters are actually used to generate it, feel free to modify it or use it in your own dweets.

u/donbright

awesome

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Purpzie

remix of d/2168 by u/jczimm

function u(t) {

with(x)t<9&&beginPath(fill()),fillStyle=R(S(t*23)*127+99,0,99),arc(960+T(t*10)*50,540+S(t/2)*30,t*30,t*15-1,t*15)

Oct 3 2018 7:48 PM UTC

}// 113/140

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feathery paint strokes

u/donbright

cool

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Purpzie

function u(t) {

for(i=2e3;i--;)with(x)strokeStyle=`hsl(${i/9+t*99} 99%50%)`,beginPath(),moveTo(i,0),lineTo(i,2e3),stroke()

Oct 3 2018 4:43 PM UTC

}// 106/140

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Purpzie

remix of d/10210 by u/Purpzie

function u(t) {

c.width=99;a=i=>i<101&&((i%3?'':'FIZZ')+(i%5?'':'BUZZ')||i)+', '+a(++i);x.fillText(a(1),-t*99,9)

Oct 3 2018 4:11 PM UTC

}// 96/140

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fizzbuzz

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prplz

remix of d/10091 by u/prplz

function u(t) {

for(let X,Y=33,r;Y--;)for(X=59;X--;x.fillRect(X*33,Y*33,33,33))x.fillStyle=R(0,r=S((X*X&Y*Y)**.3+t*5)*99+99,r*2)

Oct 3 2018 7:14 AM UTC

}// 112/140

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u/DataMeta

Mhmmm
u/donbright

fun

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donbright

remix of d/10189 by u/QXY

function u(t) {

K=256
X=t**8%2e3
Y=t**9%2e3
for(j=t**7%69+29;j>0;j--){x.lineWidth=3
x.strokeStyle=R(Y%K,K-j,X%K)
x.beginPath()
x.arc(X,Y,j,0,7)
x.stroke()}

Oct 3 2018 1:07 AM UTC

}// 139/140

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geb

remix of d/10222 by u/E-Mouse

function u(t) {

f=500
x.beginPath()
c.width|=
x.stroke()
for(i=f;--i;)
x.lineTo(C(k=i-t)*900+900,C(k=i^t/3)*f+f)
x.fill("evenodd")

Oct 2 2018 9:59 PM UTC

}// 114/140

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u/donbright

this stuff would be much cooler if i had a faster machine i think
u/Purpzie

are you saying that WE COULD HAVE DONE c.width|= ON ITS OWN LINE THIS WHOLE TIME INSTEAD OF c.width
u/Purpzie

*c.width|=0
u/magna

That's effectively c.width|=x.stroke()

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yonatan

function u(t) {

c.width=99
for(i=0;i++<6e3;x.fillRect(X,Y,1,1))Y=i/99|0,X=i%99,U=X-50,V=Y-30,h=S((U*U^V*V^t*t)**.2-t*9),x.fillStyle=R(n=99+h*99,n*2,n*3)

Oct 2 2018 9:30 PM UTC

}// 136/140

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u/donbright

omg
u/donbright

i feel like you could write an entire book explaining your dweets, one dweet per chapter, it would be like 300 pages
u/Qwitter

yikes how did you find this! Awesome

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MAxSaL

function u(t) {

c.style.bg=R();for(i=0;i<20;i++){x.fillStyle=R(C(t*i)*255,T(t)*255,S(t*i)*255);x.fillRect(i+T(C(t))*t*5+i*100,500+C(t)*i,50,C(t)*500+t*10)}

Oct 2 2018 7:25 PM UTC

}// 139/140

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Hmm... It locked a bit different when I made it. It seems, I cannot use c.style.bg

u/donbright

still got a nice rhythym

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E-Mouse

remix of d/10223 by u/E-Mouse

function u(t) {

x.beginPath()
c.width|=0
x.stroke()
for(i=500;--i;)
x.lineTo(S(k=i^t)*900+900,C(k)*400+500)
x.fill("evenodd")

Oct 2 2018 6:15 PM UTC

}// 109/140

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