Dweets awesomed by u/tylertoomey

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.

Try the new frontend: beta.dwitter.net
Current theme challenge: #ScaryMovies

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robbyg

function u(t) {

for(c.width|=i=684;i--;)x.fillRect(i%36*55+C(z=i/3+t*3)*7,3+55*~~(i/36)+S(z)*7,s=40+C(z)*2,s)

Jan 14 2020 8:07 PM UTC

}// 93/140

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Wavy.

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Xen

function u(t) {

WARNZ//$='c-=sin(atan(c.y,c.x)+t*t)*sin(c*t*.1+(t/1e3)/dot(c,c)*t*3e3)'
with(localStorage)T=Ṡ+Ṫ;eval(unescape(escape(T).replace(/u../g,'')))

Jan 14 2020 4:03 PM UTC

}// 140/140

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#DeathDweet

u/Xen

extreme photosensitive warning.. my first ever pay with #webGL ... remove comment at risk then let it run as long as you can for the dots and #moire ..., Shoutz to Mr Frank Force!
u/KilledByAPixel

Nice!

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Xen

function u(t) {

for(z=i=99;i--;t>9?x.clearRect((t*z|0)*200%2e3,0,z,z):x.fillRect(i*49-C(t/9)*z,t*2e3%1e3,45,39))x.fillStyle=R(q=i**t%127,q,q,.1)

Jan 14 2020 3:00 PM UTC

}// 128/140

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128byte #castle wall

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TC5550

function u(t) {

if(!t)for(y=1;y<9;y++)for(X=1;X<9;X++)for(a=0;a<99;a+=.03)x.fillRect(53*X+25*C(a*X),53*y+25*S(a*y),1,1)

Jan 13 2020 7:44 AM UTC

}// 103/140

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Lissajous table

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KilledByAPixel

function u(t) {

with(x)for(c.width|=i=9,scale(10,10);i--;)fillRect((z=40+S(t)*30)+i*10,40,5,5),fillRect(z+50*(i%3<1),45,i-2?35:85,i-2?15:8)

Jan 13 2020 7:26 AM UTC

}// 123/140

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#Castle #Default

u/sigveseb

lol nice one

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yonatan

function u(t) {

for(i=c.width=300;i--;x.strokeRect(-300,i-50,600,9))x.setLineDash([i*(S(t)+1.5)])

Jan 13 2020 2:54 AM UTC

}// 81/140

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sigveseb

function u(t) {

eval(unescape(escape`圽琥㌼⸲㼶㐫匨䌨琪㤩⤪㤺圻景爨椽㈵㘻椭ⴻ砮晩汬剥捴⡩⨸ⰰⰸⰸ⤩砮晩汬却祬攽椼⠱㈸ⵗⵔ⡍㵴⼲┱⸵⤩籼椾吨䴩⬶㐫圿∣㑡攢㩠桳氨〬〥Ⱔ答⡴⨳⤫⡍㸮〵⤪㈵⨨ㄫ⡩㸶㐫圯㌩⥽┩总砮摲慷䥭慧攨挬〬㐩`.replace(/u(..)/g,"$1%")))

Jan 13 2020 12:46 AM UTC

}// 140/140

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Infinite #castle tower

u/sigveseb

#compressed
u/KilledByAPixel

👍
u/sigveseb

I really wanted to add some windows as well, but couldn't fit it in
u/denzen

I love it!
u/astronaut

Impressive. Like almost all your posts.

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KilledByAPixel

remix of d/17184 by u/KilledByAPixel

function u(t) {

with(x)for(c.width|=j=2e3,scale(9,4);j--;arc(99,99+j/29,79,a=t+(j>>3)/.955,a))j%8?setLineDash(j>1e3?[9,9,j]:[j>300?0:5]):beginPath(stroke())

Jan 12 2020 8:30 PM UTC

}// 140/140

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Tiny #Castle Fort 🏰

u/sigveseb

#d3

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New_Core

function u(t) {

for(let i=c.width|=0;i--;)Z=2**T(~~(i/9)/67+t%.1/3-5),x.fillStyle=R(i%2*i),x.fillRect(960+(i%9*5)*Z*9-Z*200,Z*99+50*S(Z+t),45*Z,Z*20)

Jan 12 2020 12:14 PM UTC

}// 133/140

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wasnt the best solution but I post it anyway...

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rodrigo.siqueira

remix of d/13119 by u/rodrigo.siqueira

function u(t) {

c.width+=X=Y=Z=d=.04
for(i=6e3;i--;)X+=-d*(Y+Z),
Y+=d*(X+.2*Y),
Z+=d*(.2+Z*(X-5)),
x.lineTo(980+80*(X*C(t)-Y*S(t)),800-Z*48+Y*19)
x.stroke()

Jan 12 2020 12:43 AM UTC

}// 140/140

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Turning Rössler Strange Attractor, a system of three non-linear ordinary differential equations with chaotic dynamics and fractal properties. Some people see this turning clockwise, some see counterclockwise due to the bistable optical illusion (search "Spinning Dancer" for explanation). #attractor #illusion

u/rodrigo.siqueira

The rotation effect trick X*C(t)-Y*S(t) was "borrowed" by Frank Force KilledByAPixel's #Lorenz Attractor: from https://www.dwitter.net/d/14752

dwitter.net | tylertoomey (1063)