Dweets awesomed by u/dnmc

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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rodrigo.siqueira

remix of d/20636 by u/ciaccodavide

function u(t) {

r=(i)=>i+(S(i/2+t*9))*150
x.beginPath()
x.moveTo(960+C(t)*480,540+S(t)*480)
x.lineTo(r(960),r(540))
x.lineWidth=.7
t<6.28&&x.stroke()

Nov 17 2020 4:32 PM UTC

}// 133/140

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Full circle with 8 spikes in 2 𝝅 seconds #spirograph

u/ciaccodavide

Cool!

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dnmc

function u(t) {

r=Math.random
j=960+S(t)*400
k=540+C(t)*400
for(i=0;i++<80*t;){
j+=r()*8-4
k+=r()*8-4
x.fillStyle=R(0,(S(t*4)+1)*127)
x.fillRect(j,k,6,6)
}

Nov 17 2020 7:07 AM UTC

}// 139/140

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It's the circle of life...

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dnmc

function u(t) {

for(q=0;q<192;q++)
for(w=0;w<108;w++){
x.fillStyle=R(0,127*(1+S(20*t+q*q+w*w+q*w)))
x.fillRect(q*10,w*10,10,10)
}

Nov 17 2020 5:59 AM UTC

}// 113/140

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Snakeskin

u/tomxor

Neat!

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taupelink

remix of d/20630 by u/taupelink

function u(t) {

r=Math.random;for(i=k=214;i--;x.fillRect(k*X,k*Y,i/t,i/t))X=r(Y=r()*5)*9,h=k*S(S(S(C(p=Y*S(q=X%3*2-2)-2+Y%1.5)))),x.fillStyle=R(h*p,h*q,2*h)

Nov 17 2020 1:17 AM UTC

}// 140/140

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d/20654

u/joeytwiddle

Entrance to sietch as perceived by an insect with compound eyes
u/tomxor

Nice description, (and dweet) :)

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danieldan0

function u(t) {

c.width=1920;for(i=1920;i--;x.fillStyle=`hsl(${t*20%19200-S(t)*i*20},99%,66%)`)x.fillRect(950+i*C(9*t),i*Math.sqrt(t*i>>3),i,i*t);

Nov 16 2020 10:14 PM UTC

}// 130/140

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wacky

u/Xen

welcome to the dwitter family

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danny@hille.dk

remix of d/20618 by u/danny@hille.dk

function u(t) {

for(c.width=433,p=1;p++<6;)for(i=400;i--;)x.fillStyle=`hsla(${p*t*5},99%,50%,.4`,x.fillRect(i,m=C(i/(9*p+96)+t)*p*S(+p+S(i/66))*9+57,1,m)

Nov 16 2020 9:55 PM UTC

}// 137/140

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u/ciaccodavide

Smooth!

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ciaccodavide

remix of d/20648 by u/ciaccodavide

function u(t) {

c.width|=p=314
for(X=p+1;X--;)
r=p+C(X+t*10)*Math.max(0,.5-Math.abs(.5-(X+t*50)%p/p)-.4)*p,
x.lineTo(C(X/50)*r+960,S(X/50)*r+540)
x.fill()

Nov 16 2020 8:19 PM UTC

}// 138/140

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L O A D I N G filled

u/ciaccodavide

#loading
u/tomxor

Nice!

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rodrigo.siqueira

remix of d/20620 by u/dnmc

function u(t) {

c.width|=0
for(var q=0;q<120;q++)for(var w=0;w<110;w++)
if((V=q|w+t*140)%9)x.fillRect(960+q*(w/9)-w*7,50+w*9,7,9)

Nov 16 2020 7:49 PM UTC

}// 113/140

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Fastpinski triangle flow #Sierpinski

u/danny@hille.dk

Nice
u/tomxor

Feels like some kind of alien pyramid... ok yeah i've been watching too much startgate

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geb

remix of d/20620 by u/dnmc

function u(t) {

b=199
c.width=b*9
p=0|window.p
p=++p%b
for(q=0;q<b;q++)
for(w=0;w<b;w++)
if(q%p&w%p){
x.fillStyle=R((w+q),t,p)
x.fillRect(9*q,9*w,9,9)}

Nov 16 2020 9:16 AM UTC

}// 135/140

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#Sierpinski

u/Xen

nice
u/katkip

smooth

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dnmc

function u(t) {

w=window
p=(w['p']||0)%100
q=(w['q']+5)%1920||0
r=(w['r']+ ++p/10)%1080||0
x.fillStyle=R(255,r*.24,q*.13)
x.fillRect(q,r,10,10)

Nov 16 2020 5:02 AM UTC

}// 127/140

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Rainbow rain

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