Dweets awesomed by u/andrea270872

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: #Food

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Jezza

function u(t) {

for(i=9,j=.1,X=960,k=Y=540;k/=2,i--;j*=-3)X+=C(t*j)*k,Y+=S(t*j)*k,x.fillRect(X,Y,1,1)

Apr 29 2019 2:38 AM UTC

}// 85/140

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#epicycles #notstrictlyepicycles

u/vinca

Beautiful and minimal code.
u/artfarnaa

Agree, well done.
u/katkip

WTF! You published a #fractal #spirograph with 5 minutes before me! I was gonna create the exact same ideea. Wow

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Jezza

remix of d/13497 by u/Jezza

function u(t) {

c.width|=0;for(Y=1188;Y-=27;){x.moveTo(0,Y);for(X=1;X<13;X++)x.lineTo(X*160+(X&1?C(2*t+Y/108)*120:0)*(X&2?1:-1),Y-(X&1?108:0));x.stroke()}

Apr 27 2019 9:20 AM UTC

}// 138/140

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Tweak. (via https://old.reddit.com/r/generative/comments…)

u/aleamb

fucking awesome!
u/Purpzie

Shaved 10 characters but it's super laggy: for(c.width|=0,i=572;Y=(0|i/13)*27,X=(572-i)%13,i--;x.stroke())x.lineTo(X*160+(X&1?C(2*t+Y/108)*120:0)*(X&2?1:-1),Y-(X&1?108:0))
u/Purpzie

Less laggy version that's 4 characters shorter instead of 10: for(c.width|=0,Y=1188;x.moveTo(0,Y),Y-=27;x.stroke())for(X=0;X++<13;)x.lineTo(X*160+(X&1?C(2*t+Y/108)*120:0)*(X&2?1:-1),Y-(X&1?108:0))

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pavel

remix of d/13487 by u/KilledByAPixel

function u(t) {

for(i=t?c.width|=d=_=>u[j=q&-64|p>>6]=-!u[j]|1:(p=q=540,r=7,s=4);i--;)u[i]||x.fillRect(i?i%64*64:p+=r*=d(p+=r),i?i:q+=s*=d(q+=s),z=i?64:9,z)

Apr 27 2019 4:26 AM UTC

}// 140/140

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#breakout #tribute

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u/pavel

Had to make some visual sacrifices to get this #uncompressed
u/pavel

I discovered p+=r*=d(p+=r);q+=s*=d(q+=s) as part of messing around with this. Why does it work?
u/pavel

:)
u/KilledByAPixel

Oh wow, nice! That's the code that updates the position, velocity and applies collision for x and y. It needs to call the d function to check its colliding and also set the block to 1 if it does. It needs to check x and y separately so it knows which side to bounce off
u/pavel

Notice how d only takes one argument, and it ignores it.
u/KilledByAPixel

I see what you did there. So many great tricks in this one.
u/pavel

p+=r*=d(p+=r) the inner p+=r increments p and d ends runs with that value, however the outer p+= caches the old value of p so when d resolves the inner p+=r is silently ignored!
u/pavel

#physics

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pavel

function u(t) {

for(x.fillRect(0,0,i=640,i);z=--i**.3;x.fillStyle=R(0,500/--z))x.setTransform(s=20/z,0,0,s,0,0),x.fillText('マトリックス'[i%6],i%z*99,t++%z*60)

Apr 26 2019 8:01 PM UTC

}// 137/140

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What is The #Matrix? v1

u/artfarnaa

Awesome.

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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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Jezza

function u(t) {

t||(X=Y=u=.9)
for(i=999;i--;)T=.4-6/(1+X*X+Y*Y),Z=X,X=1+u*(Z*C(T)-Y*S(T)),Y=u*(Z*S(T)+Y*C(T)),x.fillRect(X*500+600,Y*350+750,.9,.9)

Apr 26 2019 7:31 AM UTC

}// 132/140

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https://en.wikipedia.org/wiki/Ikeda_map

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Jezza

remix of d/13451 by u/rodrigo.siqueira

function u(t) {

t||x.translate(960,540);if(t<6){
x.globalAlpha=.1
x.fillRect(-1,-540,2,1080)
x.rotate(Math.PI/2)
x.drawImage(c,0,0,1080,540)
}

Apr 26 2019 3:45 AM UTC

}// 126/140

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#dragoncurve

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KilledByAPixel

function u(t) {

for(c.width|=X=i=0;i++<2e2;x.font="5em'",x.fillText((z=i%4)?'🌼':'🐝',z?2e3*S(i):915+905*X,z?1e3*S(i*i):555+485*Y))Y=X,X=S(X+S(i)*(1e9+t/2))

Apr 26 2019 1:14 AM UTC

}// 138/140

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Busy bees with full color bees and flowers for firefox users! Don't let bees go extinct, support your local beekeeper!

u/joeytwiddle

#bees #flowers #animals

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vinca

function u(t) {

eval(unescape(escape`景爨瑼簨夽〬挮睩摴栽ㅥ㌩ⱘ㴱攳㭘ⴭ㭸⹦楬汒散琨堬夬ㄬ匨湼堯㉼夯㈩⤩景爨渽〬爽⡘⴨搽㔰〩⤯搬䤽⡙ⴲ㔰⤯㈵〻渼㌰♲⩲⭉⩉㰴㭮⬫⥡㵲⩲ⵉ⩉⴮ㄱⱢ㴲⩲⩉⬮㘸Ⱳ㵡ⱉ㵢ⱸ⹦楬汓瑹汥㵒⡮⨹Ɱ⩴⤻夫⬻`.replace(/u(..)/g,"$1%")))

Apr 25 2019 2:46 PM UTC

}// 140/140

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u/Xen

love it!
u/metamero

beautiful
u/katkip

no way
u/katkip

#genius
u/katkip

but #compressed

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katkip

remix of d/13446 by u/katkip

function u(t) {

t||(q=1);f=frame;for(i=-109;i++<108;)
x.fillStyle=S(f/99)*C(f/18+f/11)<S(i/9+C(f/10+i/9*S(i/9)))
?R():'#fff',x.fillRect(f*5,i*5+540,5,5)

Apr 25 2019 10:30 AM UTC

}// 136/140

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