Dweets awesomed by u/mark1626

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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rodrigo.siqueira

remix of d/27262 by u/taupelink

function u(t) {

c.style.filter=`invert(`
for(i=1e4;i--;x.fillRect(99*X,98*Y,f&1,1))X=i*i*t%20,Y=X*i*3*t%11,f=X+4*C(Y+S(X)),x.fillStyle=`hsl(${f*f},40%,50%)`

Mar 24 2023 6:13 PM UTC

}// 140/140

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Undulating colors

u/Jezza

Beautiful and elegant.
u/jdspugh

Awesome

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magna

function u(t) {

f=_=>S(X**2+Y**2+t*4)
for(i=3e3;i--;x.fillRect((X*2+1-v*v)*15,Y*30,v*v*30,30))v=f(X=i%64,Y=i>>6),x.fillStyle=`hsl(0,99%,${(v+1)*50}%`

Mar 30 2021 2:08 AM UTC

}// 133/140

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Bar renderer

u/magna

Play with function f and return -1..1 to create new patterns
u/erin

awesom
u/erin

awesome*

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taupelink

remix of d/22174 by u/taupelink

function u(t) {

for(i=800;--i;x.fillRect(960+9*X*C(Y),9*X*S(Y),w=i/2**t,w))f=i*t,X=f*f%200,Y=X*f%4,x.fillStyle=R(q=i*S(C(X**.5+Y)*9),q%C(X/4)*i,i*C(X+q),.1)

Mar 29 2021 6:17 AM UTC

}// 140/140

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d/22246

u/magna

WOW
u/sigveseb

#waitforit

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mark1626

remix of d/22175 by u/mark1626

function u(t) {

for(i=k=256;--i;x.fillRect(960+k*X*C(Y),540+k*X*S(Y),w=i/t,w))f=i*t,X=f*f%5,Y=X*f%13,x.fillStyle=R(q=i*S(T(X)+T(Y)),T(T(X+q/i)*i),i*T(q/i))

Mar 28 2021 11:16 AM UTC

}// 139/140

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mark1626

remix of d/22174 by u/taupelink

function u(t) {

for(i=k=256;--i;x.fillRect(960+k*X*C(Y),540+k*X*S(Y),w=i/t/t,w))f=i*t,X=f*f%5,Y=X*f%13,x.fillStyle=R(q=i*S(T(X)+Y),T(X+q/i)*i,i*T(q/i))

Mar 28 2021 11:13 AM UTC

}// 135/140

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Sort of a Yin-Yang

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kimeiga

remix of d/16584 by u/f8f82804

function u(t) {

t?s=(c.width^=onmousemove=_=>b=_.x)/4:a=b=1.57;for(q=r=a;(q-=1/s)>-a;x.lineTo(C(q+b/99)*S(r-t)*s+2*s,(C(t+=1/s)*C(r-t))*s+s))r+=a;x.stroke()

Mar 22 2021 11:05 PM UTC

}// 140/140

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I would love to be able to understand this but I sincerely don't. #interactive #mouse #remix

u/f8f82804

Great golfing!

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KilledByAPixel

function u(t) {

eval(unescape(escape`𭱩𭁨𚁸𚑃𚁡👴𚠹𯀰𛁦𪑬𫁓𭁹𫁥👡🰧𘰰𩡦𜐧𞠧𘱦𝐵𙰬𭀿𩡩𫁬𤡥𨱴𚁡🰰𞠸𛁡🰹𚡡𚰷𞠰𛁡🰲𩐳𞠱𛁡🰱𞠲𩐳𚐺𬱣𨑬𩐨𝰬𝰩𚐾𛠸𯁴𙐸🀮𜐿𨡥𩱩𫡐𨑴𪀨𚐺𫁩𫡥𥁯𚁴𙐸𚠲𞐫𤰨𮠽𭀪𜰹𚡃𚁡𚠪𜰩𚐪𜰫𞐬𜐴𚰹𚠨𭀾🠳𚐭𜠪𠰨𮠩𚡓𚁡𚐩𛁳𭁲𫱫𩐨𚐻`.replace(/u../g,'')))

Mar 22 2021 8:08 PM UTC

}// 139/140

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Notebook 📓🖊️

Show more comments…
u/magna

This is great!
u/KilledByAPixel

thank you! now need to run this through handwriting recognition and see what it says ;)
u/kimeiga

how in the world is this possible hahaha
u/rodrigo.siqueira

It seems to be an ancient handwritten version of the Enochian language. It has it's own magical alphabet with letters (pa, veh, ged, gal, or, un, graph, tal, gon, na, ur, mals, ger, drux, pal, med, don, ceph, van, fam, gisg).
u/Qwitter

Rorschach Essay
u/robbyg

I can tell it's a prescription, but I can't quite make out what for...
u/Toby

Lovely!

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KilledByAPixel

function u(t) {

eval(unescape(escape`𮀮𩡩𫁬𤱴𮑬𩐽𤠨𭰽𜡥𜰩𒡴𚠽𝠰𒡦𫱲𚁚👩🐰𛁙🐹𞐫𭀥𜰲𚠲𛁘👴𙐳𜠪𝐷𚰷𜀬𮀮𩡩𫁬𥁥𮁴𚁴𯀰𛁘𛁙𚰲𞐩𞱩🀲𜀴𞀻𮀮𩡩𫁬𤡥𨱴𚁩🱘𛐽𠰨𦠫👴𙡩𚐺𜀬𪐿𦐫👓𚁚𚐺𜀬𪐿𜐺𭰬𪐫𚰿𜐺𭀿𜠺𭰩𚑸𛡦𪑬𫁓𭁹𫁥👩🰧𘱦𩡦𜰧𞡒𚁸𛡤𬡡𭱉𫑡𩱥𚁣𛀰𛀲𚐩`.replace(/u../g,'')))

Mar 18 2021 9:40 PM UTC

}// 140/140

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Alien Microbe Classification Chart

u/KilledByAPixel

this one repeats after 2048, needs increased iterations to show more
u/katkip

amazing dweet

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mark1626

remix of d/5643 by u/sandromiccoli

function u(t) {

for(i=0;i<88*(t%9);i++){p=t/10+i,s=(t%4.735)*100,x.fillStyle=R(0,p%255,s%255,t%0.04),x.fillRect(635+C(p)*S(t)*s,540+S(p)*C(t)*s,5,5)}

Mar 5 2021 2:47 PM UTC

}// 133/140

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u/Xen

Welcome to the dwitter family!

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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

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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).

dwitter.net | mark1626 (313)