Dweets awesomed by u/Guzmop

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: #Opposites

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rodrigo.siqueira

remix of d/13650 by u/rodrigo.siqueira

function u(t) {

x.fillRect(0,0,2e3,2e3)
for(i=4e3,w=960;i--;x.clearRect(w+w*X/Z,w*Y/Z,s=64/Z/Z,s))
X=i/500-4,
Y=C(C(t)*i/150+t*3)/2-1.5,
Z=S(i*4)*2-4

May 6 2019 6:54 PM UTC

}// 133/140

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Network of Waves #d3

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rodrigo.siqueira

remix of d/13644 by u/rodrigo.siqueira

function u(t) {

c.width|=0
for(i=4e3,w=960;i--;x.fillRect(w+w*X/Z,w*Y/Z,s=20/Z/Z,s))X=C(s=i/200)*C(K=i/(10**-(~(t/3)%6))+t/3),Y=C(s)*S(K)-1,Z=S(i)*C(t)/2-2

May 6 2019 1:19 PM UTC

}// 139/140

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Demo of 3D objects #d3

u/iverjo

Nice!
u/iverjo

I like that it alternates between different 3D objects

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KilledByAPixel

function u(t) {

eval(unescape(escape`琿挮睩摴桼㴰㨨䔽㔰ⱘ㵙㴵㌰ⱁ㴷ⱂ㴴ⱄ㵛崩㭆㴨圬娩㴾⡊㵄孇㴨圯䕼〩⭚ⵚ╅崬䑛䝝㴱ⱊ籼ⴱ⤻硛昽❦楬汒散琧崨堫㵁⨽䘨堫䄬天ⱙ⬽䈪㵆⡘ⱙ⭂⤬㤬㤩㭦潲⡩㴰㭩㰲攳㬩硛晝⡩╅⩅Ⱪ⵩╅Ⱑ䑛椫⭝⩅ⱅ⤻`.replace(/u(..)/g,"$1%")))

Apr 26 2019 7:59 PM UTC

}// 139/140

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#Breakout tribute

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u/pavel

Nice!
u/Jezza

This is so satisfying. Brilliant!
u/aleamb

great! relaxing
u/katkip

How
u/KilledByAPixel

See pavel's uncompressed version, it is much cleverer.
u/katkip

#compressed

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rodrigo.siqueira

remix of d/13206 by u/pavel

function u(t) {

for(i=c.width|=h=1.6+(t<<1);Y=i--%3-1||S(i);x.fillRect(960+S(a+t)*800/r/z,540+Y*800/z,s=18/z,s))a=i%3?i:i*h,r=T(a%h+h/3),z=3+S(t)+C(a+t)/r

Apr 16 2019 2:27 PM UTC

}// 138/140

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Spin particles #d3

u/f8f82804

#perspective

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pavel

function u(t) {

for(w=c.width=1e3,i=99;r=10*i--;i?x.stroke():x.fill())x.beginPath(p=(1+t/2-r/w)%2),x.ellipse(480,270+20*S(p*40)/9**p+!i*w*(p-2),r,r/3,0,0,7)

Mar 6 2019 7:01 AM UTC

}// 140/140

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#water #drop

u/katkip

Looks good
u/aleamb

great!
u/mcdxn

damn!

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ellisk1

function u(t) {

r=t?r:Array(n=1250).fill(n);for(j=n;j-=2;x.fillRect(r[j]+=d*S(a=j%2**(t|0)+t+d),r[j-1]+=C(a)-2,w,w))x.fillStyle=R(w=j/n*200/t,d=3+(t>8)*t*t)

Jan 1 2019 9:48 PM UTC

}// 140/140

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Bonsai

u/katkip

finally something awesome
u/lionleaf

That's amazing! #bonsai #tree #organic #plant
u/DataMeta

Wow
u/hollo47

Impossible.

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ETHproductions

function u(t) {

eval(unescape(escape`景爨挮睩摴栦㵩㴭ㄷ㭩⬫㰱㌻⥦潲⡪㴭ㄷ㭪⬫㰱㌻砮晩汬剥捴⠨ㄵ⭱⨨樭椩⤪㘴⭓⡴⨴⤪搬⠱㔫焪⡩⭪⤩⨴〫䌨琪㐩⩤ⰹⰹ⤩娽椾〦樾〿〺樼椿樺椬堽樭娬夽椭娬焽⴨堼㔦夼㔦ⵚ㰵⥼ㄬ搽焪㐪⡘⭙ⵚⴶ⤫㈴`.replace(/u(..)/g,"$1%")))

Dec 7 2018 7:08 PM UTC

}// 138/140

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#cube in a corner

u/ETHproductions

Based on a tweet which I've just realized is *not* by beesandbombs: https://twitter.com/jn3008_/status/107080665…
u/katkip

This is awesome
u/katkip

uncompressed: for(c.width&=i=-17;i++<13;)for(j=-17;j++<13;x.fillRect((15+q*(j-i))*64+S(t*4)*d,(15+q*(i+j))*40+C(t*4)*d,9,9))Z=i>0&j>0?0:j<i?j:i,X=j-Z,Y=i-Z,q=-(X<5&Y<5&-Z<5)|1,d=q*4*(X+Y-Z-6)+24
u/katkip

#illusion
u/joeytwiddle

#form_from_motion

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tomxor

function u(t) {

c.width=w=120
for(i=w*33;i--;x.fillRect(i%w,i/w*2,1,2))f=i%w+t*60,n=T(0|(i/w+f^f-i/w)/(t**.7+6)),x.fillStyle=R((n&1)*i/n/8,n**n,(n&3)*i/n/4)

Nov 3 2018 5:53 PM UTC

}// 140/140

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#retro #fractal #game

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u/tomxor

For the lazy game designer... Just add chip tunes and a player :D
u/tomxor

#crt #degauss #sidescroller
u/magna

Awesome!
u/magna

I had a RGB CRT setup, but I hadn't been able to fit any interesting patterns: d/7512
u/tomxor

I had a look at yours magna, they are true crt, much more realistic i think. The scan lines on this are just a sideeffect I exploited and it was easy to add colour distortion in the R().
u/magna

Here we go: d/10843
u/C010011012

is it a cellular automata?
u/tomxor

Yes and no, it's a fractal n=T(0|(i/w+f^f-i/w)/(t**.7+6)) which is just a more elaborate variation of serpinsky triangles to produce more interesting patterns. Some fractals are automata, but not all automata are fractals, see here: https://en.wikipedia.org/wiki/Rule_90
u/tomxor

The implication is serpinsky triangles are computationally reducable, meaning it does not have to be computed in the same way as a cellular automata i.e state can be computed at step t directly without traversing intermidiate steps.

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rbong

function u(t) {

Y=c.height^=0
while(Y-=40){p=m=>S(Y+t+90*m)*250+250;[0,1,2,3].map(m=>{a=p(m),b=p(m+1%4),x.fillStyle=R(a,b,50);a<b&&x.fillRect(a,Y,b-a,40)})}

Oct 13 2018 8:48 PM UTC

}// 140/140

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Classic Twister Effect

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u/rbong

#classic #twister
u/BirdsTweetCodersDweet

Remix at d/10435
u/BirdsTweetCodersDweet

And another at d/10436, cause I couldn't help myself with the colors
u/Purpzie

Shortened by 10 characters: c.height|= p=m=>(S(Y+t+m*90)+1)*250;for(i=108;i--,Y=(0|i/4)*40;a<b&&x.fillRect(a,Y,b-a,40))x.fillStyle=R(a=p(m=i%4),50,b=p(m+1%4))
u/Purpzie

Oh woops it should be c.height|=p=m=>(S(Y+t+m*90)+1)*250;for(i=108;i--,Y=(0|i/4)*40;a<b&&x.fillRect(a,Y,b-a,40))x.fillStyle=R(a=p(m=i%4),50,b=p(m+1%4))
u/Purpzie

Okay dwitter hates me now, there should be a newline afterc.height|=
u/Purpzie

Honestly there should be an edit button for comments. Forgot to mention I changed the color but it has no effect on code length

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BalintCsala

function u(t) {

t||x.translate(960,0)
for(X=100;X--;x.fillRect(X-50,t*60+S(t)*99,2,3))x.fillStyle=X>44&&X<54&&t%1<.5?"#fff":"#000"
x.scale(s=1.005,1.0005)

Sep 20 2018 3:29 PM UTC

}// 138/140

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