Dweets awesomed by u/JuliSC

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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taupelink

remix of d/22145 by u/danny@hille.dk

function u(t) {

r=(k=255)=>Math.random()*k;for(i=99;i--;){X=r(1920);Y=r(1080);w=r();h=r();x.fillStyle=R(X/w*9,Y/h*16,r()*(h<w));x.fillRect(X,Y,w/t,h/t)}

Mar 26 2021 2:38 AM UTC

}// 136/140

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d/22149

u/taupelink

To u/danny@hille.dk: Not sure whether this is the kind of thing you had in mind. I figure there's no harm in dweeting though :) Thanks.
u/taupelink

In fact, re-reading the rules, I think this dweet is out of contention, since it doesn't create definite shapes. Carry on!
u/danny@hille.dk

I think it's great!
u/taupelink

Thank you! (I guess there are still rectangles, just small ones)

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JuliSC

remix of d/21795 by u/rodrigo.siqueira

function u(t) {

c.width=1e3
x.lineWidth=.2
for(i=2e3;i--;x.arc(500+300*T(i),282+88*S(t),C(t*3)*i+2e3,K=i**(1.13+t/1e5)-t/9,K));x.stroke()

Mar 24 2021 1:09 PM UTC

}// 121/140

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Heavy breathing

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JuliSC

remix of d/3697 by u/Citiral

function u(t) {

w=1920;for(c.width=i=w;i>=0;i-=30)for(j=0;j<1080;j+=30){i2=i-w/2;j2=j-1080/2
d=Math.sqrt(i2*i2+j2*j2)*1
o=C(d-t*2)*50
x.fillRect(i,j,o,o)}

Mar 24 2021 12:59 PM UTC

}// 138/140

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JuliSC

remix of d/5817 by u/BackendForth

function u(t) {

if(!t)a=Array(256).fill(0)
for(i=0;i<256;i++){
a[i]+=8*Math.random()-4
x.fillStyle=R(i,0,0)
x.fillRect(t*5*21%1920,a[i]+300*S(t)+540,90,90)}

Mar 24 2021 12:37 PM UTC

}// 140/140

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JuliSC

function u(t) {

c.width=1920
for(i=0;i<2000;i++)
x.fillStyle = `rgb(${i*0.06},0,0)`,
x.fillRect(c.width*C(i/2*t/15)*2,c.height/8+500,50,500*S(C(i*t)))

Mar 24 2021 11:56 AM UTC

}// 135/140

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W A V E S

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JuliSC

function u(t) {

c.width=1920
for(i=0;i<500;i++)
x.arc((C(i)+c.width/2),50*C(t*i)+500,430,t*i^T(t),T(t)+i*0.01)
x.stroke()

Mar 24 2021 10:52 AM UTC

}// 105/140

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It stares back 👁

u/Xen

Welcome to the dwitter family!

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BackendForth

function u(t) {

if(!t)a=Array(256).fill(0)
for(i=0;i<256;i++){
a[i]+=8*Math.random()-4
x.fillStyle=R(i,0,0)
x.fillRect(t*200%1920,a[i]+300*S(t)+540,9,9)}

Jan 10 2018 3:22 AM UTC

}// 137/140

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