Dweets awesomed by u/ntsutae

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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KilledByAPixel

remix of d/18734 by u/KilledByAPixel

function u(t) {

for(k=i=800;i--;x.fillRect(q?k+r*S(m>>=4)*34:0,r*51-k,q?(m%7+4)*r:2e8,q?-m%19*r:r))m=i+t*120,r=1e7/i/i,x.fillStyle=R(q=i%2*k,m%(q?16:7)*r,r)

May 12 2020 7:58 PM UTC

}// 140/140

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Aerial Photography Redux ✈️ #uncompressed #city

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tomxor

remix of d/18733 by u/joeytwiddle

function u(t) {

D=[5,4,3]
for(i=1e3;i;E=i--%8?E+'X0123456789*/+-&|^~'[(i^i*t)%19]:'')try{D.every((Y,X)=>Y==eval(E))&&(S[E]=1)}catch{}throw Object.keys(S)+E

May 12 2020 11:17 AM UTC

}// 139/140

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Expression Miner #improved

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u/tomxor

1k tests per frame + variable length + deterministic + keeps solution set
u/tomxor

... +4 chars :P
u/tomxor

Struggling to get it to find anything non linear though e.g D=[0,1,2,4,8]
u/tomxor

#fuzzing
u/joeytwiddle

Great, usable! Off of dwitter, this one generates valid syntax from a grammar: https://github.com/joeytwiddle/dweets-dev/bl…
u/tomxor

Interesting. I once wrote an n-card "24 game" solver which is similar but far more limited in terms of operators - by far the most significant optimization i could find was to combinations based on subexpressions that are equivalent to one already traversed i.e nodes in your AST - maybe that could be applied to yours as well?
u/tomxor

* to prune combinations
u/tomxor

oh and the other fairly decent optimization was pruning combinations based on commutativity of binary operators... i.e another kind of equivalence
u/tomxor

I should clarify: to by pruning I mean not mearly skipping evaluation of individual permutations but to be able to skip entire subtrees of permutations by detecting equivalence at the root of that subtree.
u/joeytwiddle

Pruning does sound sensible, but I'm not sure how to approach it.
u/joeytwiddle

I am also having difficultly with >3 non-trivial outputs. I think the search space is too large. But at least I found some simplifications, such as: [1,3,5,7] => X-~X
u/tomxor

Finally got it to solve a non linear one: D=[2,3,6,11,18,27] (2+X*X), just need a bit more patience

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pavel

remix of d/11930 by u/pavel

function u(t) {

with(x)for(i=-6*t%1;i++<66;fill())for(beginPath(fillStyle=R(8*i,4*i),j=36);--j;arc(960,h+h*S(3*t)**2/i,h/i*(9+C(~~i+6*t^j)),b=9+j/9,b))h=777

May 2 2020 4:35 AM UTC

}// 140/140

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Walking through a #cavern

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u/KilledByAPixel

🤯 genius
u/KilledByAPixel

Looped! https://twitter.com/KilledByAPixel/status/12…
u/sigveseb

Wooow sweet!
u/aleamb

yeah!
u/sigveseb

Really nice colors
u/jick

Holy cow, wow!
u/Xen

sexy!
u/katkip

aannd we have a winner!
u/KilledByAPixel

https://www.reddit.com/r/perfectloops/commen…
u/pavel

the gif is very blurry
u/KilledByAPixel

HD gif for you - https://www.dropbox.com/s/u3wbakb6e4sm00y/pa…
u/Qwitter

Wow!
u/vain

Who needs longer shaders? ;-) Real DemoScene feeling

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rodrigo.siqueira

remix of d/18558 by u/rodrigo.siqueira

function u(t) {

for(let i=2e3,f=(X,Y,n=21)=>X*X<n?f(X*X-Y*Y-.85,2*X*Y+.2,n-1):x.fillStyle=`hsl(9,99%,${n**2}%`;i--;x.fillRect(i,t*60,1,999))f(i/490-2,1-t/9)

May 1 2020 3:20 PM UTC

}// 140/140

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Red Dragon #Julia #Fractal (wait for it)

u/KilledByAPixel

Very nice

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ntsutae

function u(t) {

t?f++:f=N=99
for(c.width|=X=Y=i=0;Y+=S(v=~~(S(~~((f-i)/16))*N)%4*11),X+=C(v)+S(v),s=i++%N?20:50,i<N*16;)x.fillRect(X*9+960-s,Y*9+540-s,s,s)

May 1 2020 1:55 PM UTC

}// 140/140

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Distribution system #City #Traffic

u/ntsutae

PI/2=11/7
u/joeytwiddle

Multiplayer Amidar? :-D
u/KilledByAPixel

👍
u/tomxor

:O City Building !?

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ntsutae

function u(t) {

t*=60,h=1080
c.width=1920
for(y=0;y<h;y++){
s=y**3/h**2+50
w=y/99+5
d=t/60+(y-t*4)**2/1e4
x.fillRect(960+C(d)*s,y+S(d)*s,w,w)
}

Apr 29 2020 12:51 AM UTC

}// 127/140

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Tube

u/jylikangas

Great to have you here bringing fresh ideas!
u/magna

Lovely!

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ntsutae

function u(t) {

c.width=1024
for(i=0;i<1024;i++){
y=(t*111-i)%768
p=1.01**y+50
x.fillRect(S(i*i+t)*p+512,y,5,5)}

Apr 27 2020 9:16 PM UTC

}// 96/140

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I learned how not to use arrays.

u/joeytwiddle

Excellent!
u/avocade

Love it!

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ntsutae

function u(t) {

c.width=1024
for(s=1,i=0;i<1024;i++){
s*=1.006;p=s+50;
x.fillRect(S((i*2-t)*16+i)*p+512,i/2%1024+70,s/4,i/33)}

Apr 27 2020 7:13 PM UTC

}// 110/140

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My debut work on dwitter.

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KilledByAPixel

remix of d/18500 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`𭱩𭁨𚁸𚑦𫱲𚁦𪑬𫁔𩑸𭀨𙱒𡑇𡱁𡐧𛁩👺🐲𞀵𛁺𚐻𪐭𛐻𩡩𫁬𤱴𮑬𩐽𤠨𭀿𩡯𫡴🐧𜠱𩑭𘠧𞡺𛑩𛀡𭀪𪐪𜠩𚑦🐨𪐿𬐽𭀥𜐺𜠪𬐩𚡺𚡃𚁩𚡩𚐬𩡩𫁬𤡥𨱴𚁓𚁩𚱓𚁴𚐯𝰩𚡦𚰨𭁼𜀩𚠳𝰰𛁴🰶𜀰𚱃𚁩𚐪𩠭𬐪𮠫𬐪𬐪𮠺𪐪𝠬𬠽𭀿𪐿𞐭𬐪𝠺𞐫𬐪𜠹𞠲𩐳𛀭𬠩`.replace(/u../g,'')))

Apr 26 2020 4:57 PM UTC

}// 140/140

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Reggae Music 🎵 #dancing

u/KilledByAPixel

this is why I was making palm trees in the first place ;)
u/katkip

weed

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tomxor

remix of d/18497 by u/tomxor

function u(t) {

eval(unescape(escape`𩡯𬠨𭰽𪐽𨰮𭱩𩁴𪀽𜰸𝀬𮀮𩡩𫁬𤱴𮑬𩐽𙰣𜀱𜐲𙰻𛐭𪐻𮀮𨱬𩑡𬡒𩑣𭀨𛠮𛠨𪐦𜐿𦰱𜀫𦀬𜐴𚱙𛀳𝠬𜠸𛁸𛡦𪑬𫁒𩑣𭀨𦀭𝐬𦐬𦐥𝠵𚰱𜀬𭰩𧐺𦰨𭀫𚰫𤰨𭀩𚐪𜠰𛠳𝰲𙑷𚱩𙐹𛀱𚱘𙑷𛀴𛀲𛁸𛡴𬡡𫡳𩡯𬡭𚀰𛀱𛀭𜐬𜀬𭰬𜀩𧐩𚐩𦀽𪐥𞐼🀶𛁙👩𙐵🀼𝠻`.replace(/u../g,'')))

Apr 26 2020 3:13 PM UTC

}// 139/140

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#City #Traffic #Simulator v3

u/DataMeta

Impressive! I like how you packed in the behavior details
u/KilledByAPixel

🚦 These drivers must be from the city I live in. Brilliant work!
u/sigveseb

Next level!
u/katkip

Looks very good
u/katkip

wait what the cars are actually smart. #genius

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