Dweets awesomed by u/donbright

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: #Food

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katkip

remix of d/8236 by u/sawaxon

function u(t) {

c.width|=0;for(j=~x.translate(960,540);j++<300;)for(i=-9;i<9;x.rotate(3))x.fillStyle=R(i++*120,i*9,0),x.fillRect(j*4,T(j/9-t)*50,99,99)

Oct 5 2018 11:33 AM UTC

}// 135/140

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#portal golfed with u/prplz

u/anotherkitten

wowie this one looks nice

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katkip

remix of d/5042 by u/BackendForth

function u(t) {

f=(a,b,r)=>{x.lineTo(a,b,r/2,r/2);if(r>1){w=(r)/9+t,f(a+C(w)*r,b+S(w)*r,r/2),f(a+S(w)*r,b+C(w)*r,r/2)}},c.width=1920,f(960,540,250),x.fill()

Oct 5 2018 10:12 AM UTC

}// 140/140

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katkip

remix of d/10247 by u/katkip

function u(t) {

c.width^=0;x.translate(960,540);for(i=0;i++<90;)x.lineTo(0,i*15),
x.rotate(i/6),x.fill(),x.globalCompositeOperation='xor'

Oct 5 2018 9:55 AM UTC

}// 121/140

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#abstract

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katkip

function u(t) {

c.width^=0;x.translate(960,540);for(i=-10;i++<10;)
x.lineTo(0,i*40),
x.rotate(C(t+i)),
x.lineWidth=20,
x.stroke()

Oct 5 2018 9:47 AM UTC

}// 113/140

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#abstract thing.

u/joeytwiddle

Looks like half of Batman's batsignal
u/DataMeta

Funky organism
u/BirdsTweetCodersDweet

Looks like a wrench to me, inside some sort of half-hexagon...

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donbright

remix of d/10243 by u/cantelope

function u(t) {

for(c.width^=з=0,M=[ф=1,п=ф];з++-12;){
M.push(п+=M[з-ф])
for(A=6.3;A>0;A-=(t+.1)/M[з])
x.fillRect(1e3+39*з*C(A),500+39*з*S(A),7,7)
}

Oct 5 2018 4:43 AM UTC

}// 132/140

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fibboclock?

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zanella

remix of d/10234 by u/Purpzie

function u(t) {

c.width|=0
r=[0,1];for(i=2;i<1e3;i++)r.push(r[i-1]+r[i-2])
x.font='99px"'
x.fillText(r.join(' '),-200*t,500)

Oct 4 2018 5:41 PM UTC

}// 108/140

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Bring back the marquee tag!! #90s

u/donbright

i really like this one for some reason i cant quite put my finger on

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cantelope

remix of d/10234 by u/Purpzie

function u(t) {

for(c.width=-1,з=0,_=[ф=1,п=ф];з++-20;)_.push(п+=_[з-ф]);x.fillText(_,0,9)

Oct 4 2018 4:42 PM UTC

}// 74/140

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u/magna

#fibonacci
u/magna

18 characters longer, avoids loop: x.fillText([c.width=-1,1,2,3,5,8,13,21,34,55,89,144,233,377,610,987,1597,2584,4181,67],-3,9) :D
u/donbright

#oeisA000045

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katkip

remix of d/10203 by u/katkip

function u(t) {

c.style.background='#0f0';c.width*=1;for(a=1e3|0;a--;x.lineTo(C(a+b*b+t)*S(b+a*a+t)*960+960,S(b)*540+540,i=b/40-5,i))b=4*a*a;x.fill()

Oct 4 2018 2:12 PM UTC

}// 133/140

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u/firegodjr

#plasma

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THORinHOOD

function u(t) {

w=c.width=1920
h=1080
s=20
q=h/4
for(j=0;j<q;j+=40)for(i=1,d=t;i<99;i++)d-=C(t)/i,x.fillRect(w/2*(C(d)*S(d)+1),-Math.exp(S(d))*h/4+h-j,s,s)

Oct 3 2018 8:32 PM UTC

}// 139/140

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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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