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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Agnes

remix of d/9934 by u/anotherkitten

function u(t) {

c.style.background=R();if(t<34)with(x){shadowColor=`hsl(${t*99},76%,66%)`
shadowBlur=19
fillRect(9,9,9,9)
translate(25,8)
rotate(t*2.10587)}

Sep 20 2018 7:18 PM UTC

}// 140/140

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Same as the remixed dweet, except the HSL works on iOS Safari.

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Xen

remix of d/14887 by u/Blacklink

function u(t) {

for(c.width|=i=111;i--;x.stroke())x.beginPath(x.lineWidth=(q=(t*5*(i+t))%1e3)/8),x.arc(980,540,q,i+t/i,i+t/i+1)

Jul 2 2019 7:27 PM UTC

}// 111/140

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had to have a play with this one

u/Xen

#spiral

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PhiLho

remix of d/246 by u/PhiLho

function u(t) {

M=255;s=5;for(h=0;h<1920;h+=s)for(v=0;v<1080;v+=s){b=M*C(h/1222);g=M*S(v/687);r=M*(1+S(t*7))/2;x.fillStyle=R(r,g,b);x.fillRect(h,v,s,s)}

Jul 20 2016 1:29 PM UTC

}// 136/140

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Show more comments…
u/iverjo

Nice colors, but low frame rate
u/iverjo

Try lowering the resolution
u/PhiLho

Thanks, but I wanted it slow... :-) Change s value to higher value for faster rendering.
u/iverjo

To make it more clear: I like the slow pace, but not the performance hog ;)
u/iverjo

Here's a less performance-intensive version: c.width=96;M=255;for(h=96;h--;)for(v=54;v--;x.fillStyle=R(M*(1+S(t))/2,M*S(v/34.4),M*C(h/61.1)),x.fillRect(h,v,1,1))
u/iverjo

It should still be smooth and slow-paced
u/iverjo

The previous code might not work.. here's an alternative version that probably works: c.width=96;M=255;for(h=96;h--;)for(v=54;v--;){x.fillStyle=R(M*(1+S(t))/2,M*S(v/34.4),M*C(h/61.1)),x.fillRect(h,v,1,1)}

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magna

function u(t) {

with(stats.dom)with(style)setStatsVisibility(left=top='50%',marginLeft='-40px',childNodes[0].getContext`2d`.filter='hue-rotate(15deg')

Jan 4 2018 5:51 AM UTC

}// 134/140

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anykey

function u(t) {

c.width|=0
x.font='200px courier'
x.fillText('¯\\_   _/¯',410,670+S(t*4)*30);
x.fillText('(ツ)',730,650);

Dec 27 2017 11:04 PM UTC

}// 104/140

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u/sigveseb

Hehehe the animation

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joeytwiddle

remix of d/2470 by u/joeytwiddle

function u(t) {

for(i=c.width=90;i--;t?x.fillText(T[i],i%4*17,9+10*(i>>2)):T[i]=g=i)onclick=e=>(((h=4*(e.y>>6)+e.x/99|0)-g)**2|17)^17||(T[g]=T[h],T[g=h]='')

Feb 6 2018 9:41 AM UTC

}// 140/140

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As promised, this version prevents cheating, although there is still one "special move" you can use ;-)

u/joeytwiddle

(The aim of this game is to arrange the numbers vertically)
u/zanella

This is freaking awesome. I'm getting genuinely scared of what can be done here. Sooner or later someone will post a dweet that mines bitcoins.
u/Apex

@zanella that's already possible lol, but Monero to be specific
u/joeytwiddle

#interactive #puzzle #game
u/fujimotos

#playable

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rodrigo.siqueira

remix of d/21992 by u/rodrigo.siqueira

function u(t) {

c.style.filter=`invert(1`
for(c.width|=i=9;i--;x.fillRect(i*99-430,T(i*i+t*2)*400-250,50,400))x.setTransform(C(t)*2,S(t),S(t),C(i),960,540)

Mar 18 2021 1:58 PM UTC

}// 139/140

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#default pieces (night flight)

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KilledByAPixel

function u(t) {

_='􉬭󤗘􇔴󹩨􇷒󛻭󭅪𞻯򃆚񼵩󗡴󡑠񫆥򥗋񺺊򊅊񃐘񨰴󑥘򓒱𖖃𺞅򧔹񼳶󹙹򧙻񕃍򶍊𚐀'
for(V=I=O='';I<1e3;I%7+!V?0:(O+=String.fromCharCode(V),V=0))V|=(_.charCodeAt(I/10)>>I%10&1)<<I++%7;eval(O)

Sep 18 2019 6:23 PM UTC

}// 140/140

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New Dwitter Compressor - Proof of Concept

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u/KilledByAPixel

Code converted to 7 bit ascii and packed into a unicode string using every available byte.
u/KilledByAPixel

Compression is nearly 3:1 (each output character holds 20 bytes which is almost 3 7 bit characters)
u/KilledByAPixel

The problem is the uncompressed is still too large for this to be useful, can we golf it?
u/tomxor

Neat idea. @ 3:1 we need to remove 34 chars to break even with d/9207 i think overhead should be max 78 chars = 140 - 184/3
u/tomxor

Heh, I managed to add 8 O+=eval(`'\\${(V).toString(8)}'`)
u/tomxor

+!V could be omitted if the encoder simply padded the input with a space to make an even number.
u/tomxor

Also ?0: can be replaced with ||
u/tomxor

Ah, I don't mean input even, i mean output even... which I guess is easier to do with a condition that checks for the lower surrogate being zero and replaces with 0x20
u/tomxor

argh no i'm getting confused I was right first time, the condition is on i%7
u/tomxor

no that was a terrible idea, I can see why you chose !V, since you don't have to check length and even if you did the minimum number of extraneous bits is 1, which in the 7th position is 0x40 (@) which doesn't eval...
u/KilledByAPixel

tomxor, good ideas! keep em comming. ?0: to || saves 1 byte!

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tomxor

remix of d/25593 by u/KilledByAPixel

function u(t) {

for(i=1e3;i--;b=a)a=u[j=i%461]||[960,540],x.fillRect(a[0]+=0|3*S(r=j*1.0472),a[1]+=0|3*C(r),u[a]?u[j]=[...b]:u[a]=2,3)

Jun 8 2022 3:56 PM UTC

}// 118/140

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Smoler Isometric Divisions

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u/tomxor

Seems to be easier to find good results if j=i%461 is restricted to primes.
u/pavel

-4 for(i=1e3;i--;x.fillRect(a[0]+=3*S(r=j/.955)|0,a[1]+=3*C(r)|0,u[a]?u[j]=[...b]:2,u[b=a]=3))a=u[j=i%461]||[960,540]
u/KilledByAPixel

nice!
u/pavel

Weirdly the numeric error from approximating pi/3 seems to matter a lot.
u/tomxor

Yeah, I think it's because it causes a deviation in the sequence at j=0. Although the output of 0|3*C(r) generally gives the expected low period of +1,+2,+1,-1,-2,-1 as j decrements, it ends on a 3, but only when using lower precision PI/3. full precision PI/3 pushes all of the 2s into 3s, which can be corrected by lowering the coefficient to 2.9, but this also makes j=0 output 2 which then seems to destroy the complexity.
u/pavel

I tried getting rid of the sin/cos by using hex coordinates but I was unable to make a complex picture. Usually just one of the six slices drew-in.

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jylikangas

function u(t) {

for(c.width=Y=W=256,t*=w=99;Y--;x.fillStyle=R(t%w,Y,w))x.fillRect(w-w/(z=Y/9)+S((v=Y+t)/w)*z*7+(v&8&&w)/z,W/z+Y*C(v/50),v/8%W>9&&W/z,Y%60/z)

Feb 27 2018 12:52 PM UTC

}// 140/140

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Enjoy the ride but watch out for the missing track pieces! :)

Show more comments…
u/aleamb

wow! epic!
u/zanella

Damn!!
u/sigveseb

Crazy good!
u/artfarnaa

Crazy Epic!
u/jylikangas

Thanks!
u/aleamb

#rollercoaster