Dweets awesomed by u/indjev99

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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indjev99

remix of d/4804 by u/indjev99

function u(t) {

D=b=>64*S((i*i+b*b)**.5*.5-3*t);for(i=192;i--;)for(j=108;j--;)d=D(20-j)+D(88-j)+128,x.fillStyle=R(d,d,d),x.fillRect(i*10,j*10,10,10)

Jan 20 2021 5:39 AM UTC

}// 132/140

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Higher res but runs much slower.

u/tomxor

Nice! 2 point source #interferencepattern

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pavel

function u(t) {

for(i=c.width|=0;j=i-->>5;x.arc(98*(28-k*63+i%32*(4*k-2)+(j|t)%2+t%1/2+(.5-j%2)/(1+9e9**(j/9-t%1))),(j-k)*170,98,3*!k,3*k))k=i>>4&1
x.fill()

Nov 29 2018 12:18 AM UTC

}// 140/140

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MORE disks >:) #beesandbombs

u/anotherkitten

stop being so good
u/katkip

i love your beesandbombs dweets
u/pavel

I call fill just once, the black bits are a single connected shape that zig-zags, the messy edges are hidden offscreen.
u/pavel

I use 1/(1+9e9**x) to smooth step but even rows step twice in one cycle which is done by adding (j|t)%2 as offset.
u/pavel

In hindsight ~~x+(x%1)**9 is better for multi-smooth-step animations.

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indjev99

remix of d/4804 by u/indjev99

function u(t) {

D=b=>45*S((i*i+b*b)**.5-3*t);for(i=96;i--;)for(j=54;j--;)d=D(-j)+D(27-j)+D(54-j)+128,x.fillStyle=R(d,d,d),x.fillRect(i*20,j*20,20,20)

Dec 30 2017 9:38 AM UTC

}// 133/140

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indjev99

function u(t) {

D=b=>64*S((i*i+b*b)**.5-3*t);for(i=96;i--;)for(j=54;j--;)d=D(10-j)+D(44-j)+128,x.fillStyle=R(d,d,d),x.fillRect(i*20,j*20,20,20)

Dec 30 2017 5:00 AM UTC

}// 127/140

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nic

function u(t) {

k=460
for(i=255;i--;)
{x.fillStyle=R(255-i-(t%9-4)*50,255-i,255-i+(t%5-2)*50,0.02)
x.fillRect(k*2+2*k*C(t*2+i/9),k+k*S(t*2-i/8),99,99)}

Dec 29 2017 6:58 PM UTC

}// 135/140

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u/Xen

my kind of dweet :-D

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quuxman

function u(t) {

p=t?p:Array(9e3).fill(0)
for(i=0;i<9e3;x.fillRect(p[i+=2]+=(p[i+1]+=Math.random()-.5)%2e3,p[i+2]%1e3,9,9))
x.fillStyle=R(S(t*5)*120,0,0,.3)

Dec 29 2017 10:45 AM UTC

}// 139/140

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u/Zikoat

i was looking for a way to initialize a variable, good one!
u/quuxman

Yah, stole it from u/Xem or someone
u/joeytwiddle

#virus #outbreak
u/vain

Amazing!

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xem

function u(t) {

if(!t)document.write("<h3>DWITTER SOURCE CODE EXPOSED! #H4XX0R😋<textarea style=width:85vw;height:85vh>"+document.documentElement.outerHTML)

Dec 28 2017 9:18 PM UTC

}// 139/140

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I'm so going to jail for that 😱

Show more comments…
u/Xen

LOL
u/E-Mouse

Xem and Xen in the same comments, comfusing!
u/Xen

:-D both in the same team aswell...
u/xem

xem vs. xen => the M means Mighty, the N means Nasty :D
u/Xen

Xtreme English Nutter!! ;-)
u/SIGILLIM

This is creative xD

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trabbt

function u(t) {

w=c.width|=0,x.translate(w/2,500);for(i=0;i<10;i++)a=C(t+i),x.fillStyle=R(90,60,90+90*a*a,.2),x.arc(S(i)*800,C(i)*300,a*a*200,0,6),x.fill()

Dec 28 2017 11:04 AM UTC

}// 139/140

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u/sigveseb

Great style!
u/nystrand

beautiful!

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chochkobagera

function u(t) {

c.width|=0;
  for(i=0;i<2000;i++)
  x.fillRect(800*S(((t+60)/8000)+i+42)+960, 400*S(((t+60)/3000)*i)+600, 5, 5)

Dec 28 2017 10:13 AM UTC

}// 111/140

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retera

function u(t) {

c.width=w=1920
v=t+400
for(q=255;q--;){x.fillStyle=R(q,q,q);x.beginPath();x.arc(w/2+C(v-q)*(v+q),540+S(v-q)*(v-q),40,0,6.283,!1);x.fill()}

Dec 28 2017 8:54 AM UTC

}// 138/140

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u/Xen

nice style
u/geb

#background
u/vain

well done!

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