Dweets awesomed by u/TheYoungBard

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

Please log in (or register) to post a dweet (copy-paste the code somewhere safe to save it meanwhile)


    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

show FPS hide FPS share fullscreen

tomxor

remix of d/21783 by u/tomxor

function u(t) {

A=t?A.map(a=>(s=u[a>>4]^=1,x[s?'fillRect':'clearRect'](a>>6,a&1008,16,16),a=a+2*s+1&~4,a+=a&1?a%4-2<<10:a%4-1<<4)):[54675,69010,69233,54896]

Mar 2 2021 11:27 PM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Multi #langton's #ant

u/tomxor

Squashed each ant into a 16bit bit field, [X,Y,D] = 0b 111111 111111 0111. These ants were generated with: X=7,Y=7,D=0,[[-X,-Y,3+D],[+Y,-X,2+D],[+X,+Y,1+D],[-Y,+X,0+D]].map(([X,Y,D])=>X+60<<10|Y+32<<4|D%4<<0)
u/mark1626

This is incredible. Just one question, how does s = u[a >> 4] ^= 1 work?
u/tomxor

Thanks :) a>>4 is the cell index of a 64x64 grid. the lower 4 bits are for the ant's direction so shifting them off to the right leaves only the 12 X and Y bits (see above). u is just an object, so all of these indicies will be undefined initially, but undefined is falsey and bitwise operators coerce falsey into 0, i.e undefined ^ 1 == 0 ^ 1 == 1, in otherwords XOR just treats all of the initial cell values as 0. Using the assignment version ^= means we toggle each cell between 0 and 1 each time an ant passes through it (which is part of the langton ant rules).

show FPS hide FPS share 1 remix fullscreen

erin

remix of d/21778 by u/erin

function u(t) {

for(i=d=99;i--;)x.fillRect(e=t*i,e&t*d,1,1)

Feb 28 2021 4:48 AM UTC

}// 43/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

smallest Sierpinski i could come up with

u/danny@hille.dk

or for(i=d=99;i--;)x.fillRect(t*d&t*i,t*d,1,1)

show FPS hide FPS share 2 remixes fullscreen

Pascal

function u(t) {

for(c.width|=i=w=1e3;i--;c.style.filter=`invert(.8`)x.lineTo(w+w*(2*C(a=i+t)+C(b=i/2+t))/(z=S(a)-3.5),540+w*(2*S(i)**2-1)/z)
x.stroke()

Feb 22 2021 8:34 PM UTC

}// 135/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

#d3 wave

u/anotherkitten

thats sick

show FPS hide FPS share fullscreen

TheYoungBard

remix of d/739 by u/donbright

function u(t) {

c.width=900;for(i=0;i<250;i++){x.fillRect(450+C(i*t/18)*i,250+S(i*t/18)*i,4,4)}

Aug 14 2019 1:08 PM UTC

}// 79/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Psychadelic Effect

show FPS hide FPS share fullscreen

TheYoungBard

function u(t) {

c.width=1920
for(i=0;i<96;i++)
x.fillRect(850+S(t-i*3.14/16)*300,600+C(t-i*3.14/12)*300,9,9)

Aug 14 2019 12:21 PM UTC

}// 92/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Pretzel (Lissajous Curve)

show FPS hide FPS share fullscreen

django

function u(t) {

w=c.width=1920 // clear the canvas
j=t*100
for(i=0;i<800;i++){
k=j*S(0.025*(t+i))
x.fillRect(w/2-100 -S(i/t)*k/4,t+2.5*i,k/2,2.5)
}

Aug 14 2019 8:30 AM UTC

}// 131/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

oil slick

show FPS hide FPS share fullscreen

rodrigo.siqueira

remix of d/15329 by u/tomxor

function u(t) {

for(a=b=0,i=1e4*(t<9);i--;x.fillRect(a*640,b*800-500,1,.1)) 
r=1|Math.random()*3,
a+=(r-a+b*C(b*3))*.5,
b+=(2-a*b+C(b*3))*.25

Aug 13 2019 12:05 PM UTC

}// 125/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Chaos Photographer, Pic 1, Remix 1 #spiral

show FPS hide FPS share fullscreen

KilledByAPixel

function u(t) {

eval(unescape(escape`𭀿𫰽𘠢𞡣𛡯𭑴𩑲𢁔𣑌🐢🁤𪑶𘁩𩀽𣰾🀯𩁩𭠾🐾🁩𫡰𭑴𘁩𩀽𢐾🀽𘠻𒡩👉𛡶𨑬𭑥𞱦𫱲𚁪🐱𜀱𞱪𛐭𞱏𛡩𫡮𩑲𢁔𣑌👯𚑔𦱪𧐿𫰽𪠫𨀽𙁻𥁛𪡝𯐠𨀫𫰺𪐮𫑡𭁣𪀨𛱞𦰭𚰪𚀩𛰮𝁝𚠤𛱧𚐦𙡩𛡭𨑴𨱨𚀯𝀯𩰩𛡬𩑮𩱴𪀽🐴𙠦𚁶👥𭡡𫀨𪐩𚐽👶𯀰🱔𦱶𧐽𪐺𜀻`.replace(/u../g,'')))

Aug 13 2019 5:19 AM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

our Fours Puzzle V2 ~ How many integers between 0-100 can you form using only 4 4s and the +-*/.() operators? Example 1=44/44

u/KilledByAPixel

Updates: Fix issue with space running out after 20. You can also use the decimal point. Only exact matching strings are accepted.
u/KilledByAPixel

#interactive #math #puzzle #game

show FPS hide FPS share 6 remixes fullscreen

tomxor

remix of d/15316 by u/taupelink

function u(t) {

for(a=b=0,i=1e4*(t<8);i--;x.fillRect(a*640-160,b*640+240,1,.05)) 
r=0|4*Math.random(),
a+=.3*(r-a+b*S(a*3.14)),
b+=.3*(1-a*b+C(a*3.14))

Aug 8 2019 10:10 PM UTC

}// 135/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Chaos Photographer, Pic 1

u/DataMeta

#organic
u/magna

#waitforit
u/iverjo

#art
u/yonatan

animated version: https://twitter.com/zozuar/status/1218899130…

show FPS hide FPS share 2 remixes fullscreen

coderkid

function u(t) {

c.width|=0;for(s=19;s--;)for(a=10;a--;){x.beginPath();x.arc(s*100+50,a*100+50,Math.abs(S(t+s+a)*50),0,2*Math.PI);x.fill();}

Jan 8 2018 12:52 AM UTC

}// 123/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

u/Xen

lots of nice dweets, keep up the good work!

dwitter.net | TheYoungBard (761)