Dweets awesomed by u/danny@hille.dk

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: #Food

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danny@hille.dk

remix of d/23879 by u/danny@hille.dk

function u(t) {

z=c.width=w=180;for(m=2e4;m--;r=(a=X/45-2)*a+(b=Y/45-1)*b,z=S(b*2*r+t)-C(a*2-t*4))x.fillStyle=R(z**9,z**8),x.fillRect(X=m%w,Y=m/w,z*2,z*2)

Sep 23 2021 8:51 PM UTC

}// 138/140

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Alen virus - remex

u/neimad

Nice!

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rodrigo.siqueira

remix of d/23901 by u/rodrigo.siqueira

function u(t) {

for(i=5e4,w=960;i--;x.fillRect(w+w*X/Z,w*Y/Z/3-Z*606-3e3,s=7/Z/Z,t<3))r=Math.random,X=r()*16-6,Y=r()*22-9,Z=C((X*X/4+Y*Y)/(Y-S(X-Y)))/4-6

Sep 23 2021 6:49 PM UTC

}// 137/140

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Abstract trigonometric curves

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danny@hille.dk

remix of d/23879 by u/danny@hille.dk

function u(t) {

eval(unescape(escape`󭍼󯌨󢜽󫭥󭼠󢝭󨝧󩝄󨝴󨜨󭼽󨼮󭽩󩍴󪌽󜼶󜌬󭼩󚜻󩭯󬬨󫜽󮬽󞝥󝌻󫜭󛜻󢜮󩍡󭍡󛭳󩝴󚍛󬼽󤼨󮬽󤼨󦜯󩌪󬬫󭌪󝼫󠼨󦌯󩌫󭌪󝜩󚜩󚭷󛍳󛍳󛍷󧜬󫜪󝌩󚝩󟝭󙝷󛍪󟝭󛽷󛍤󟜨󬬽󚍘󟝩󛼹󜌭󜬩󚭘󚼨󦜽󪬯󞜰󛜱󛬱󚜪󦜩󟬱󟼮󜬺󠼨󬬩󞽸󛭰󭝴󢝭󨝧󩝄󨝴󨜨󢜬󜌬󜌩`.replace(/u../g,'')))

Sep 22 2021 11:20 PM UTC

}// 137/140

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dunno what to label this remix

u/UEZ

#glass #ball #reflection - looks very cool.
u/danny@hille.dk

Thanks u/UEZ, now that you mentioned it, glass ball seems kinda obvious :-)

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rodrigo.siqueira

remix of d/23896 by u/rodrigo.siqueira

function u(t) {

for(i=5e4,w=960;i--;x.fillRect(w+w*X/Z,w*Y/Z/2-Z*640-3e3,8/Z/Z,t<3))r=Math.random,X=r()*20-9,Y=r()*20-9,Z=(s=S(s=S(X*Y)+X*X+Y*Y+7)/s)**.2-6

Sep 22 2021 4:06 PM UTC

}// 139/140

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Circular layers

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KilledByAPixel

remix of d/15713 by u/KilledByAPixel

function u(t) {

_="𐊪𐀀򐏿𐀀򐅗𐀀򐅗𐀀򐍟𐀀򐏿𐀀򯅕𐠀󯹖𑰀󯾫񑰀󯿿񡵕񧿽񩵕򍿽񭰀򏏽񭰀񤅕𐐀򸊪𔠀򵚪𕐀𕐀𕐀𐐀"
eval(unescape(escape`󩭯󬬨󪜽󜼶󜌻󪜭󛜻󭬦󙭸󛭦󪝬󫍒󩝣󭌨󞜹󚽩󙜲󜌪󠼬󞜹󚼨󪜯󜬰󯌰󚜪󠼬󠼽󝌰󛍃󛍸󛭦󪝬󫍓󭍹󫍥󟝒󚍶󚬱󝌰󛜱󝌰󚜩󚝶󟝟󛭣󪍡󬭃󫽤󩝁󭌨󪜯󝜩󟬾󪜥󝜪󜬦󜼻`.replace(/u../g,'')))

Sep 21 2021 10:26 PM UTC

}// 140/140

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🚀 S P A C E H U G G E R S 🪐

u/KilledByAPixel

Play my JS13k game Space Huggers - https://js13kgames.com/entries/space-huggers

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rodrigo.siqueira

remix of d/23878 by u/rodrigo.siqueira

function u(t) {

for(i=4e4,w=840;i--;x.fillRect(w+w*X/Z,w*Y/Z/4-Z*600-2300,5/Z/Z,t<4))r=Math.random,X=r()*16-8,Y=r()*39-12,Z=C(X*Y*S(X)+Y*S(Y))/(X*X+Y*Y+9)-5

Sep 20 2021 2:31 PM UTC

}// 140/140

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Zen Garden (based on the Sombrero Equation)

u/rep_movsd

I see faces

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neimad

remix of d/23879 by u/danny@hille.dk

function u(t) {

z=c.width=w=120;for(m=1e4;m--;)x.fillRect(i=m%w,j=m/w,z,1/z),x.fillStyle=R(z*j),d=(r=(X=i/w*(g=1))*(Y=j/w)*Y)>1?0:C(r)/9,z=C(X/d)/S(Y/d-t*9)

Sep 20 2021 4:26 AM UTC

}// 140/140

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donbright

remix of d/23883 by u/donbright

function u(t) {

質=(n)=>{for(j=2;j<n;j++){if (n%j==0)return n}return 0}
格=7
for(X=299;X--;)
for(Y=299;Y--;)
if (質(X^Y)) x.fillRect(格*X,格*Y,格,格)

Sep 19 2021 5:48 PM UTC

}// 126/140

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Prime fun 2 / 3 - Normally X binary XOR with Y produces a single white line, but if we only draw black when X XOR Y is a prime number, then we get a pattern. #math #primes

u/donbright

(note i have flipped black/white in my caption, actually its drawing black when the number is not prime)
u/rep_movsd

Fascinating
u/Joachim

#circuit

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donbright

function u(t) {

質=(n)=>{for(j=2;j<n;j++){if (n%j==0)return n}return 0}
格=7
for(X=299;X--;)
for(Y=299;Y--;)
if (質(X&Y)) x.fillRect(格*X,格*Y,格,格)

Sep 19 2021 5:40 PM UTC

}// 128/140

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Prime fun 1 / 3 - This is the standard X&Y (binary AND) Sierpinski triangle picture but only where X & Y is a prime number. perhaps revealing a relationship between primes and binary AND #math #primes

u/donbright

(note white = X&Y is prime, black = X&Y is composite)
u/andrea270872

this is really nice. retro and mathsy at the same time!
u/donbright

#Sierpinski

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ketolli

function u(t) {

c.width=a=1920;for(i=0;i<150;i++)x.fillRect(S(t+(i/4))*50+a/2,8*i,C(t+(i/20))*40,S(t+(i/3))*50)

Sep 19 2021 5:33 PM UTC

}// 95/140

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Tapeworm

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