Dweets awesomed by u/tomxor

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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Xen

remix of d/5538 by u/wackytman

function u(t) {

for(c.width=i=1e3;i--;x.arc(480,270,200,i*i,t*C(i*(t|0))))x.lineWidth=.1;x.stroke()

Feb 16 2021 5:35 PM UTC

}// 83/140

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slight golf and play (calming lines)

u/tomxor

ooh

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rodrigo.siqueira

remix of d/21681 by u/rodrigo.siqueira

function u(t) {

for(i=3e3;i--;x.fillStyle=`hsl(${99*t+i/59},99%,${30+99*S(i+t)}%,25%)`)x.fillRect(960+570*C(i)*C(K=i/4)*S(t),500*C(i)*S(i+t)+540,2,2)

Feb 16 2021 3:26 PM UTC

}// 133/140

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Changing colors #butterfly

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rodrigo.siqueira

remix of d/21669 by u/Pascal

function u(t) {

c.style.filter=`blur(2vw)contrast(99`
for(c.width|=i=244;i--;x.fill(x.arc((X=i%18)*120,T(t-X)*i,z=99+99*C(t/6+i/2),4+z/9,z/9)))x.beginPath()

Feb 16 2021 1:39 AM UTC

}// 140/140

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Liquid dripping

u/tomxor

looks like #mud
u/joeytwiddle

#metaballs

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cantelope

function u(t) {

eval(unescape(escape`𤠽𬐽🠨𫐫𬐩𚠪𜰻𩡯𬠨𨰮𭱩𩁴𪁼🐰𛁭🐲𩐳𛁨🐱𩐳𛁸𛡲𫱴𨑴𩐨𛠵𚐻𫐭𛐻𮀮𩡩𫁬𤡥𨱴𚁨𚱘𛱚𛁙𛱚𛀹𛀹𚐩𩀽𦀽𜠫𤰨𬀽𤠨𜐩𚐬𦐽𠰨𬀩𛁘𚠽𤰨𬀽𤠨𜠩𚐬𦠽𠰨𬀩𚡤𛁙👓𚁰👍𨑴𪀮𨑴𨑮𜠨𦐬𦠩𛑓𚁴𚐪𝀩𚠨𩀽𣑡𭁨𛡨𮑰𫱴𚁙𛁚𚐩𛁚👃𚁰𚐪𩀯𪀫𛠰𜀸`.replace(/u../g,'')))

Feb 16 2021 12:43 AM UTC

}// 140/140

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u/384.cz

#donut

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Odog8

remix of d/21661 by u/Odog8

function u(t) {

t?x.fillRect(y%16+1,~~(y/16)+1,1,'ﰀꯀúʰΠ,฀೬㠀ೋೋ㌀ᄛᕛᕛ啬䑬㠀ʰຠꯀϪﰀ?'.charCodeAt(y/8).toString(4).split``.reverse()[y++%8]/3):(c.width=40,y=0)

Feb 15 2021 12:33 AM UTC

}// 140/140

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Boo Ghost! 4 colors!

u/tomxor

#pixelart #sprite
u/rodrigo.siqueira

~~(y/16)+1 can be changed to y/16 with almost no difference
u/Xen

slight golf t?x.fillRect(y%16,y/16,1,'ﰀꯀúʰΠ,฀೬㠀ೋೋ㌀ᄛᕛᕛ啬䑬㠀ʰຠꯀϪﰀ?'.charCodeAt(y/8).toString(4).split.reverse()[y++%8]/3):y=c.width=28

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tomxor

function u(t) {

// Xorshift 32
R ^= R << 13
R ^= R >>> 17
R ^= R << 5

// U(0,1)
f = (R>>>0)*2**-32
// Plot
x.fillRect(f*2e6%2e3,f*1e3,9,9)
// Seed
R = R||1

Feb 13 2021 12:31 PM UTC

}// 140/140

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#Xorshift 32 #PRNG

u/tomxor

I felt that there are too many extremely unecessarily long examples of xorshift32 implementations out there, with lots of fluff around the outside. It's a very nice and simple little PRNG and this is all the code you need to turn it into a unit interval (i.e the type and range you get from Math.random()): (x>>>0) * 2**-32. This conversion method is far from perfect and results in some bias, but so does the PRNG itself...

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Odog8

function u(t) {

t?0:c.width=40
y=frame
x.fillRect(y%16+1,~~(y/16)+1,1,'êᠵ珔ᇠ팈龏㯡ꅰ骃ᛈȷ赇缴䱬꽌࠘駂蝫ᛢࡒ'.charCodeAt(y/10).toString(3).split``.reverse()[y%10]/2)

Feb 12 2021 7:19 PM UTC

}// 137/140

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Mario! Took forever to golf

u/Odog8

#pixelart #mario
u/Odog8

If you change some of the parameters, you could set it to 4 colors, but i didnt need to lol
u/rodrigo.siqueira

You can save 2 characters if you remove 2 first lines of code and start with: t?x.fillRect(y++%16..... and end with: .../2):(y=0,c.width=40)
u/Odog8

oh sick, i didnt think of that! thanks man

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erin

remix of d/13665 by u/rodrigo.siqueira

function u(t) {

c.width|=0,w=960
for(i=4000;i--;x.fillRect(w+w*X/Z,w-Y/Z*w,s=500/Z/Z/Z,s))
X=2*C(U=i+t)+C(V=t+i*i),
Y=T(U)+C(V)*T(V)-2,
Z=S(U)-5

Feb 11 2021 3:41 AM UTC

}// 128/140

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flow

u/erin

#d3
u/rodrigo.siqueira

Change from T(U) to S(U) and it will become a #torus
u/erin

check out my remix of this one, it turns into a torus and back into this shape

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Xen

remix of d/21624 by u/katkip

function u(t) {

throw t.toString(2)

Feb 8 2021 4:26 PM UTC

}// 19/140

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19bytes #binary #clock

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robbyg

remix of d/21608 by u/DataMeta

function u(t) {

x.fillRect(a=0,0,z=2e3,z);for(i=w=1e3;i>w/3;a=w/--i)x.clearRect(960+w*S(a*z+t/9),1080*(i+a*t/3)%z,a*3,a*3)

Feb 8 2021 3:59 PM UTC

}// 106/140

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We've had a lot more #snow than stars around here lately.

u/DataMeta

Nice :) I believe this is the shortest dweet of snowfall, well done!
u/danny@hille.dk

not pretty but 90 b =>for(x.fillRect(a=0,0,z=2e3,i=w=1e3);i>w/9;)x.clearRect(2*w*S(--i+t/9),1e3*(a+t)%z,a=w/i,a)

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