Random dweets | Dwitter

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.

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Current theme challenge: #Food

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Xen

remix of d/27202 by u/taupelink

function u(t) {

for(t*=i=135;--i;x.fillRect(X,Y,Z=z*2,Z))x.strokeRect(X=333+i%12*99,Y=200+99*i%7*99,z=C(i)*t,z),x.fillStyle=`hsl(${(X^Y)*t/1e3},50%,50%,.07`

Mar 16 2023 5:51 PM UTC

}// 140/140

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Golf & also play #Art

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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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BalintCsala

function u(t) {

c.width=300
with(x)for(translate(150,90),i=10*t;i-->0;fill())beginPath(fillStyle=`hsl(${i},99%,50%`),arc(i,0,4*C(i*.9)+6,0,9),rotate(-3.88)

Jun 20 2018 5:17 PM UTC

}// 139/140

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u/joeytwiddle

Lower res higher frames :)
u/Xen

love it
u/pythech

no credits given, rude :(

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Xen

remix of d/20072 by u/Xen

function u(t) {

t?0:x.fillRect(0,0,2e3,2e3)
for(Y=(a=i=555)*t%(X=1e3);--i;x.fillStyle=R(0,a/9))x.fillRect(X+=S(a+=4*Math.random())*Y/59,Y+=C(a)*9,5,.4)

Dec 13 2022 6:34 PM UTC

}// 135/140

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Merry Xmas Dwitter Famalang!

u/BriSeven

wonderful remix, i am amazed that people are still tweaking this one
u/danny@hille.dk

treeception -> t?0:x.fillRect(0,0,2e3,2e3) for(Y=(a=i=555)*t%(X=1e3);--i;)x.fillText(i%9?'🌲':'⭐',X+=S(a+=4*Math.random())*Y/59,Y+=C(a)*9)

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nbruno234

function u(t) {

eval(unescape(escape`琿〺朽〻景爨栽季⹨敩杨琽ㄲ〰Ⱪ㴨丽㜵⤪九㭩ⴭ㭸⹦楬汒散琨椥个ㄶⰱ㘪⡾樭丩ⰱ㐬ㄴ⨨桛楝㵧㽓ⴵ㽓㴽㘺杛楝㩄慴攮湯眨⤦ㄩ⤩景爨稽匽㤻稭ⴻ匭㵧孾樥个丫縨⵩⵺⼳ⵎ⤥九⥪㴭椯中稥㌭主朽栻`.replace(/u(..)/g,"$1%")))

May 24 2020 12:38 AM UTC

}// 135/140

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Game of Life!

u/Foldster

wow!
u/DaSpider

#GameOfLife
u/bandaloo

i've been waiting for someone to do this!

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magna

remix of d/4560 by u/UnacceptableUse

function u(t) {

for(i=c.width|=0;i--;)x.fillRect(i,T(t*i/100)*1e3,50,50)

Dec 29 2017 6:23 AM UTC

}// 56/140

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JonasPeeters

function u(t) {

//move mouse on canvas

c.onmousemove=function(e){x.fillStyle=R(t%1*256,t%2*128,t%3*85,0.7);x.fillRect(e.clientX*3.35,e.clientY*3.35,20,20)}

Dec 27 2017 1:49 PM UTC

}// 140/140

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gormisdomai

remix of d/1194 by u/gormisdomai

function u(t) {

c.width=1920;
for(i=0;i<50;i++)
x.fillRect(950+T(t+i)*900, 0, 20, 2000)
for(i=0;i<50;i++)
x.fillRect(0, 350+T(t+i)*900, 2000, 20)

Feb 24 2017 3:32 PM UTC

}// 129/140

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"Dislocation #4"

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anotherkitten

function u(t) {

x.beginPath(c.width|=X=Y=Z=0.004)
for(i=t**.4*499|0;i--;x.lineTo(960+(Z+X)*i*199,540+Y*i*199))X+=Y*Z+Y,Y+=Y*Y-X*X-Z-X,Z+=-Z*Y*X+Y
x.stroke()

Oct 16 2020 7:16 PM UTC

}// 140/140

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Mind Melter

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lewdev

remix of d/31666 by u/lewdev

function u(t) {

eval(unescape(escape`琿⡯湭潵獥摯睮㵟㴾䌽ㄬ潮浯畳敵瀽弽㹃㴰Ɐ湭潵獥浯癥㵥㴾䌦☨堽攮砯㠬夽攮礯㠩⤺䌽堽夽㤊砮晩汬呥硴⡛㌶攲Ᵽ⹷楤瑨㴶〬ㄬ⸰ㅝ⹭慰⡁㴾⡂㵴㸽䄿琯䄾㸰㨰ⱴ┽䄬䈾㤿䈺怰怫䈩⤮橯楮怺怬堬天`.replace(/u([^D].)/g,'$1%')))

Aug 5 2024 3:17 AM UTC

}// 138/140

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⏲ Running #timer #clock #interactive Click 'n Draggable!