Dweets awesomed by u/graue

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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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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jeff

function u(t) {

c.width|=0
for(i=2e3;i>=0;i--) x.fillStyle=R(i%290, i%25, i%25),
x.fillRect(C(t+i)*800+900,S(t)*20+00,300,100),
x.rotate(194)

Apr 27 2019 10:58 PM UTC

}// 125/140

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Submission #4

u/Jezza

Nice!

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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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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/13450 by u/rodrigo.siqueira

function u(t) {

t||x.translate(960,540);if(t<8){
x.globalAlpha=.1
x.strokeRect(0,0,30,60)
x.rotate(Math.PI*.8)
x.drawImage(c,30,0,1000,1200)
}

Apr 25 2019 1:58 PM UTC

}// 126/140

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Star thread

u/Purpzie

Shortened by 8 characters: with(x)t||translate(960,540),t<8&&(globalAlpha=.1,strokeRect(0,0,30,60),rotate(Math.PI*.8),drawImage(c,30,0,1e3,1200))

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vinca

function u(t) {

for(i=2e3;i--;x.fillRect(i,0,1,9))x.fillStyle=`hsl(${1e3*S(t+i/(40+30*S(t/9)))+i},80%,80%`;x.drawImage(c,0,9)

Apr 21 2019 7:57 AM UTC

}// 109/140

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u/graue

this is trippy and awesome

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KilledByAPixel

remix of d/13325 by u/KilledByAPixel

function u(t) {

for(i=0;i<2e3;x.fillRect(i?960+i*S(F=260*(t+9)/i+S(i*i)):0,i?500+.2*(2*i*C(F)+2e4/i):0,K=i++?S(i)*9:2e3,K))x.fillStyle=R(99*i,2*i,i,i?1:.4)

Apr 20 2019 7:07 PM UTC

}// 139/140

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#blackhole

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u/DataMeta

Quite cool!
u/katkip

wow
u/aleamb

epic!
u/donbright

#space #astronomy
u/KilledByAPixel

Full explanation on my blog: http://frankforce.com/?p=6378
u/chenliang

cool
u/katkip

top of the year

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KilledByAPixel

function u(t) {

for(i=0;i<2e3;x.fillRect(i?960+i*S(F=300*t/i+i+S(z)/9):0,i?460+.2*(2*i*C(F)):0,K=i++?S(i)*9:2e3,K))x.fillStyle=R(z=i*i,z%498,z%499,.2+i)//★

Apr 20 2019 5:26 PM UTC

}// 140/140

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#galaxy

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katkip

remix of d/13317 by u/bandaloo

function u(t) {

w=1920;h=1080;a=100;c.width=w;for(i=0;i<w;i+=24){for(j=0;j<h;j+=24){x.fillRect(i,j,s=6*(4+C(t*6)+C(i/a*S(t))+S(j/a*C(t))),s);}}

Apr 20 2019 6:27 AM UTC

}// 127/140

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u/bandaloo

nice remix :)

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