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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pavel

remix of d/11472 by u/cantelope

function u(t) {

for(k=c.width|=0;j=--k>>7;x.lineTo(960*(z+4*S(t)+.43*d*((k&120)-62)+S(a))/z,1e3/z))d=.5-(j+4*t&1),z=j+.6-4*t%1+C(a=k%8*d*2.1)*2/3;x.stroke()

Dec 18 2018 11:22 PM UTC

}// 140/140

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k=[4 bits for y][4 bits for x][3 bits for hexagon vertex]

Show more comments…
u/pavel

16*16*8=2048~=1920 so using width
u/pavel

.43~=3**.5/4, 2.1~=2*Math.PI/3
u/pavel

120=0b1111000 so k&120=x*8
u/pavel

I'm using a single stroke and no moveTo. This is a single curve, just lined everything up.
u/pavel

d is horizontal offset, even rows are offset from odd rows. Using +4*t&1 to explicitly cycle the animation every second instead of implicitly cycling every 2 seconds. Longer cycle leads to z<0 and glitches or hexagons that don't reach the camera.
u/magna

Wow!
u/aleamb

awesome!!!
u/pavel

#uncompressed with one plane

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timothytomato

function u(t) {

c.width=1080
for(i=0;i<200;i++)
x.fillRect(10*i,300-(S(t+i)*100),20,10)

Nov 2 2023 11:16 PM UTC

}// 71/140

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Rotating Cylinder Optical Illusion

u/timothytomato

#illusion

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firegodjr

function u(t) {

c.width=1920
for(y=0;y<38;++y)for(d=0;d<2;++d,x.fill()){x.beginPath();for(w=0;w<33;++w){x.lineTo(60*w,S(t+(y+d)/5+w/2)*50+30*y+30*d-25)}}

Apr 13 2018 6:06 PM UTC

}// 137/140

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u/elochimsiemasz

Wow
u/loni_art

trippy!"
u/jylikangas

Cool! Here's the same with 120bytes if your or someone wants to add color...for(c.width|=y=38;y--;)for(d=2;--d;x.fill(new Path2D(V)))for(V='M',w=33;w--;)V+=[60*w,S(t+(y+d)/5+w/2)*50+30*y+30*d]+'L'
u/firegodjr

Thanks for the golf, I'm afraid Path2D strings are a bit over my head at the moment, but I did manage to golf it to 108 chars without using them. :)

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yaska

function u(t) {

c.width|=0;w=c.width;h=c.height;
for(j=0;j<=2*Math.PI;j+=0.001)
x.fillRect(w/2+w/4*C(8*j)*C(j*t),h/2+w/4*C(8*j)*S(j*t),2,2);

Feb 12 2018 7:27 AM UTC

}// 124/140

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danny@hille.dk

remix of d/24031 by u/danny@hille.dk

function u(t) {

eval(unescape(escape`󮬽󨼮󭽩󩍴󪌽󭼽󜬱󞌻󩭯󬬨󫜽󜽥󝌻󫜭󛜻󚝸󛭦󪝬󫍒󩝣󭌨󪜽󫜥󭼬󪬽󫜯󭽼󜌬󮬬󮬩󛍲󟜨󦌽󪜯󭼪󚌶󛝓󚍴󚬴󚜩󛝓󚍴󛼲󚜭󜼩󚭘󚼨󦜽󪬯󭼪󚌶󛝓󚍴󚬴󚜩󛝓󚌭󭌪󜼥󜼮󜬩󛜲󚜪󦜬󩌽󬬾󜜿󜌺󠼨󬬩󛼷󛍺󟝓󚍘󛽤󛝴󚬹󚜯󠼨󦜯󩌪󛬵󝜫󭌪󞜩󟬱󒬻`.replace(/u../g,'')))

Oct 9 2021 10:18 PM UTC

}// 130/140

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Now i suck a football/soccer both IRL and virtual :-)

u/danny@hille.dk

uncompressed but (less bouncy) -> c.width=w=218;for(z=m=3e4;m--;)x.fillRect(X=m%w,Y=m/w,z,z),r=(i=X/w*4-2)*i+(j=Y/w*4-S(-t%3.2)-2)*j,d=r>1?0:C(r)/7,z=S(i/d-t*4)/C(j/d*.5+t)>1
u/danny@hille.dk

#d3
u/danny@hille.dk

#ball
u/danny@hille.dk

#hexagon
u/danny@hille.dk

#football

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kian

remix of d/21919 by u/rodrigo.siqueira

function u(t) {

c.style.filter=`invert(`
w=c.width=99
for(var i=2e3;i--;x.fillStyle=R(0,3&i,i))x.fillRect(X=i*(t/5)%w,Y=6+(i*1)/w-T(X/t)*7,C(i*i^X)*8,t**.2)

Mar 12 2021 6:03 PM UTC

}// 140/140

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bananas?

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kulak

function u(t) {

c.width|=0
x.translate(900,500)
for(i=30;i;--i){
q=13*i
x.strokeStyle=R(q,q,q)
x.beginPath()
x.arc(0,0,i*20,0,3)
x.stroke()
x.rotate(t*.2)
}

Dec 28 2017 3:29 PM UTC

}// 140/140

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nystrand

function u(t) {

for(q=a=b=i=3e3,d=35;i--;x.fillRect(a/2-q,b/4-q,q*9,q*4,x.fillStyle=R(d*3,d,d%99,.1,q=2)))a+=a*S(w=d+S(d*9+t*4))/77,b+=b*C(w+.5)/77,d+=t%9/d

May 12 2017 2:39 PM UTC

}// 140/140

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u/donbright

outstanding
u/magna

This is so 70's!
u/lionleaf

sweet!
u/iverjo

So nice! And it looks like 3D
u/joeytwiddle

Pretty
u/13thptr

#flower

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KilledByAPixel

function u(t) {

eval(unescape(escape`𭱩𭁨𚁸𚑦𫱲𚁣𛡷𪑤𭁨𯀽𪐽𜐲𞐻𪐭𛐻𨡥𩱩𫡐𨑴𪀨𩡩𫁬𚁥𫁬𪑰𬱥𚀹𝠰𚱓𚁴𚱩𛰹𚐪𞐹𚰳𜀰𚠨𥀿𪐭𞀹𛠵𞠰𚐬𜐱𝀰𛑩𚠸𛁲𛁔🱲𛑲𚡃𚁴𚐪𚠲𜀰𞡲𛰲𛁔🐰𛀰𛀷𚐩𚐩𬠽𪐾𞐰🰨𜡥𝐭𚁩𚠹𛐷𜠰𚐪𚠲𚐪𚠮𝐺𪐾𞀸🱔🐶𞐺𪐪𪐯𜐸𛁧𫁯𨡡𫁁𫁰𪁡👔🰱𞠮𜀳`.replace(/u../g,'')))

Oct 22 2019 11:19 PM UTC

}// 140/140

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Friendly Ghost 👻

u/jellyedwards

Very cool
u/KilledByAPixel

#Inktober day 22: Ghost
u/joeytwiddle

#cute #halloween #ghost

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spbyrne

function u(t) {

h=960,c=128,x.beginPath(),x.fillStyle=R(S(t)*c+c,S(t+2)*c+c,S(t+4)*c+c),x.arc(h*.8+(h*.6*S(t)),h*.6,(h/3+S(t)*c),t/2,t/2+2),x.fill()

Jul 31 2017 12:48 AM UTC

}// 133/140

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u/donbright

great job