Dweets awesomed by u/nyarmith

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: #ScaryMovies

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BackendForth

function u(t) {

c.onmousemove=(e)=>{c.width=1920
for(i=1920;i-=64;)for(j=1080;j-=54;)p=e.x*3.5-i,q=e.y*3.5-j,r=(p*p+q*q)**.5/99,x.fillRect(i-p/r,j-q/r,9,9)}

Mar 10 2021 2:37 AM UTC

}// 140/140

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Mouseover, please!

u/erin

this is gonna b one of my fav dweets i think
u/smtsjhr

good fun!
u/danny@hille.dk

Nice!
u/Xen

nicely!
u/aleamb

#interactive

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BackendForth

remix of d/21811 by u/BackendForth

function u(t) {

c.width=1920
for(k=9;k--;)
for(i=10;i--;)for(j=25;j--;)x.fillRect(400+i*5+300/(1+2**(-39*S(t+k/9*t)+j))+k*100,540+j*8,5,8)

Mar 4 2021 2:48 AM UTC

}// 122/140

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rodrigo.siqueira

remix of d/21721 by u/Xen

function u(t) {

for(c.width=i=1e3;i--;x.arc(500,300,i,K=i**(1.12+t/2e4)-t/3,K));x.stroke()

Feb 21 2021 3:52 AM UTC

}// 74/140

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Geometric sketches. The pentagon is turning clockwise and the triangle is turning counterclockwise.

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mana998

function u(t) {

for(i=0;i<250;i++)
x.fillStyle = R(20+C(t+50)*i,120+S(t-i)*50,220+C(t)*i,i),
x.fillRect(S(t+i)*i*10,S(t-i)*i*10,c.width,c.height)

Feb 20 2021 8:32 PM UTC

}// 131/140

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squaredom gradient

u/Xen

welcome to the dwitter family!

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danny@hille.dk

remix of d/16528 by u/katkip

function u(t) {

x.fillStyle='#0001'
x.fillRect(0,0,2e3,2e3)
for(i=24;i--;)for(p=j=50;j--;)
x.clearRect(j*p+S(S(i/6+t)*6)*p-p,i*p+S(S(j/9+t)*S(t)*6)*p-p,9,9)

Feb 20 2021 6:47 PM UTC

}// 140/140

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random remix

u/Qwitter

nice!

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Xen

remix of d/21719 by u/Mikk990a

function u(t) {

for(c.width=i=1e3;i--;x.arc(450,300,i,i/t,i/frame*9));x.stroke()

Feb 20 2021 5:50 PM UTC

}// 64/140

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golf and play

u/danny@hille.dk

love it
u/Qwitter

cool && stylish
u/magna

WOW!

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anotherkitten

function u(t) {

for(i=96;i--;x.fillRect(i*20,540-(Y=S(t+i)*500+90),20,Y))x.fillStyle=R(C(t+i)*200)

Feb 20 2021 7:53 AM UTC

}// 82/140

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splitting apart

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anotherkitten

function u(t) {

for(i=48;i--;)for(j=27;j--;)x.fillStyle=R(V=(i+j*4/3+t/3)%2*139+(i+j)%2*139,V/2,170),x.fillRect(i*40,j*40,40,40)

Feb 20 2021 7:22 AM UTC

}// 112/140

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vwave lattice

u/Xen

nice!
u/Qwitter

where's the steering wheel?

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rodrigo.siqueira

remix of d/21670 by u/rodrigo.siqueira

function u(t) {

for(i=5e3;i--;x.fillStyle=`hsl(${99*t+i/999},99%,${30+T(i+t)*99}%,9%)`)x.fillRect(99*(10+8*C(i/2)*C(K=i*t/9)),99*(3*S(i)-S(K)*S(K+t)+5),2,2)

Feb 19 2021 8:24 PM UTC

}// 140/140

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Glass object with soft iridescent color noise

u/UEZ

#flyhead

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Pascal

function u(t) {

for(c.width|=i=0;i<9;i++)x.rotate(S(i*i+t)/80),x.fillRect(510+i*100+C(t)*300+9*S(i*i+2*t)-3*C(t),440-5*S(t*3+i),50+5*C(t),200+9*S(t*3+i))

Feb 19 2021 6:50 PM UTC

}// 137/140

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drunk #default

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