Dweets awesomed by u/joeytwiddle

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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pavel

remix of d/11101 by u/pavel

function u(t) {

t?c.width=540:a=b=0
q=42+t&-1
with(x)rect(X=q*q%533,Y=X*q%300,8,8),moveTo(a+=C(d=Math.atan2(Y-b,X-a)),b+=S(d)),fill(arc(a,b,15,d+t%1,d-t%1))

May 31 2019 4:27 AM UTC

}// 140/140

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#pacman is too slow

u/KilledByAPixel

Pᗣᗧ•MᗣN ᗧ • • •
u/joeytwiddle

wow
u/rep_movsd

Forever hungry

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rodrigo.siqueira

function u(t) {

D=(a,b)=>{L=a.length,i=r=0,R='';while(i<53){d=i<L?~~(a[i]):0,R+=(i==L?".":"")+~~((K=d+(r*10))/b),r=K%b,i++}throw(a+"/"+b+"="+R)};D("1",9998)

May 30 2019 5:23 PM UTC

}// 140/140

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BigFloat in 140 chars! This is the Long Division Algorithm used here to calculate 1/9998. Note that this simple division results in Powers of Two: 0001, 0002, 0004, 0008, 0016, 0032, 0064.... Try to change 9998 for 9997 and you will see Powers of Three (1, 3, 9, 27, 81...). Guess what 9996 does? D is the division function. (a,b) are (numerator, denominator). 53 is precision (number of digits). Add more "9" to fit larger power numbers. E.g. To see powers up to 2**40 (that is 1099511627776), change denominator from 9998 to 9999999999998 and total number of digits from 53 to 534.

u/rodrigo.siqueira

I have discovered a truly remarkable demonstration of this result, but this comment is too small to contain.
u/joeytwiddle

#math #division
u/marc8

quoting Fermat... LOL

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13thptr

function u(t) {

s=~~t+"";throw s.split``.map((e,i)=>(r="IXC",d="VLD"[i=s.length-1-i],b=r[i],e<4?b.repeat(e):e-4?e-9?e>4&e<9?d+b.repeat(e-5):0:b+r[i+1]:b+d))

May 30 2019 10:47 AM UTC

}// 140/140

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Counts up to 899

u/13thptr

Thanks to u/KilledByAPixel for the golfing help :)
u/joeytwiddle

optimvm laborvs!
u/13thptr

turns out someone made a more elegant and "general" implementation. The function is 136c long but it's not callable without compression inside Dwitter: https://codegolf.stackexchange.com/a/77961

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vinca

remix of d/14291 by u/lineranch

function u(t) {

x.arc(960+400*S(t/2),540+300*C(t/2),50+50*S(3*t+3*S(t/2)),0,7),x.fillStyle="gold",x.fill(),x.stroke()

May 30 2019 9:26 AM UTC

}// 101/140

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u/joeytwiddle

#paw
u/katkip

#Cute

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taupelink

function u(t) {

g=(X,Y,n,s)=>{if(Y==0)s=X;else{r=X%Y;s=X+'='+Math.floor(X/Y)+'*'+Y+'+'+r;g(Y,r,n+1)}x.fillText(s,0,n*90)}
x.font=`5em"`;g(12345,6789,1)

May 30 2019 2:19 AM UTC

}// 136/140

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Euclidean algorithm #math #recursive #recursion (my first dweet!)

u/Xen

nice work!!!

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geb

remix of d/14303 by u/hope4tg

function u(t) {

x.arc(520+S(t)*800,540+S(9*t)*30,9,0,0)
x.arc(920+S(t)*800,540+C(9*t)*300,9,0,0) 
x.fillStyle=R(1,99,99-9*t)
x.fill()
x.stroke()

May 29 2019 8:53 PM UTC

}// 129/140

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u/joeytwiddle

I don't beleaf it. That's firry good. #organic

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KilledByAPixel

remix of d/14307 by u/katkip

function u(t) {

f=(s,w,o)=>(m=((((S(i*2/7+s*11/7)*99)*t+o))%w+w)%w,m>w/2?w-m:m);for(i=88;i--;x.fillRect(f(1,3831,S(i*i)*960+960),f(2,2151,i*3e6%1080),5,5));

May 29 2019 7:44 PM UTC

}// 140/140

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Line Bouncer #uncompressed

u/joeytwiddle

Good golf
u/katkip

Awesome

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katkip

function u(t) {

/*‮*/t||(m=0);c.width*=1;if(t%1<0.0001)q=0;c.onclick=n=>{q++;};x.font='19cm"';m<q?m=q:0;x.fillText(`${m}/s`,200,800)

May 29 2019 6:39 PM UTC

}// 116/140

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Clickometer! How fast can you click? Records only the highscore.

Show more comments…
u/katkip

11 highscore with touchpad
u/katkip

#game #interactive #challenge
u/geb

13
u/pavel

/*‮*/Backwards huh
u/hope4tg

17 with touchpad *nice*
u/katkip

Wow
u/donbright

23 using both hands
u/donbright

#arcadeaction

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robbyg

function u(t) {

c=t?c+4:1;throw p=(t?p:0)+4/c-4/(c+2)

May 29 2019 5:22 PM UTC

}// 37/140

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Calculating #pi based on a formula I found in a Commodore 64 manual. Googling says it's the Gregory-Leibniz series.

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katkip

function u(t) {

/*‮*/c.width*=1;c.style.background=R();x.shadowBlur=666+C(t*6)*66;x.shadowColor='#fff';x.beginPath();x.fill(x.arc(960,540,666/2,0,7));

May 29 2019 12:01 PM UTC

}// 134/140

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Black sun

Show more comments…
u/rnbw

um... what's with the code? x)
u/KilledByAPixel

I think it's backwards‮҉‮‮
u/katkip

^ fail :))
u/joeytwiddle

¿uʍop-ǝpısdn ǝʇısqǝʍ sıɥʇ sı ɹo ǝɯ ʇı sı
u/KilledByAPixel

:( d/13806
u/Xen

nice
u/katkip

#satan

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