Top dweets by u/FireFly

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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FireFly

function u(t) {

r=140-16*(t<10?t:0);for(U=0;U<44;(r<8?"䃀䀰䜼䚬䶴伙倃匞䖴䚬䞜䆀䁠".charCodeAt(Y-61)>>X-18&1:0)||x.fillRect(8*X,8*Y,8,8))X=120+r*C(U+=.11)|0,Y=67+r*S(U)|0

Mar 7 2017 6:23 PM UTC

}// 140/140

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Change .11 to another decimal number (e.g. .10 or .13) for a different pattern!

u/magna

What is the nature of the data that you're encoding in that string?
u/FireFly

Just that lil' bitmap in the centre (same way as in other dweets—each bit of each codepoint represents one binary pixel)
u/quate

r=140-16*(t<10?t:0);for(U=0;U<44;(r<8?"䃀䀰䜼䚬䶴伙倃匞䖴䚬䞜䆀䁠".charCodeAt(Y-61)>>X-18&1:0)||x.fillRect(8*X,8*Y,8,8))X=120+r*C(U+=.11)|0,Y=67+r*S(U)|0
u/quate

whoops. sorry.

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FireFly

function u(t) {

x.strokeStyle='hsl('+t*8+',90%,50%)'
x.beginPath()
for(i=24;i;x[i-24?'lineTo':'moveTo'](960+--i*20*C(U=i/4+t/4),540+i*20*S(U)));
x.stroke()

Feb 28 2017 4:37 PM UTC

}// 139/140

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u/donbright

cool hsl

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FireFly

function u(t) {

c.width|=0,x.font='3in a';for(x.fillText("warped",Y=A=500,300);Y--;x.drawImage(c,0,Y,2e3,1,D/2,Y+A+C(Y*t/9)*4,2e3-D,4))D=S(Y/40*T(t))*A*C(t)

May 11 2017 1:16 PM UTC

}// 140/140

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FireFly

function u(t) {

for(i=t?9:x.translate(960,540);i--;x.rotate(t))x.fillRect(i,t*69,2,9)

Mar 1 2017 6:41 PM UTC

}// 69/140

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Filing this one in the 'half-dweet' category

u/lionleaf

Hardcore
u/khalkeus

this is very pleasant to watch!
u/5Mixer

Crazy and yet very simple. Love the output :)

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FireFly

function u(t) {

X=0;X||(c.onmousemove=(e)=>(x.lineTo(X=e.offsetX/c.offsetWidth*1920,Y=e.offsetY/c.offsetHeight*1080),x.beginPath(x.stroke()),x.moveTo(X,Y)))

Feb 28 2017 3:28 PM UTC

}// 140/140

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Paint! Works best in fullscreen, unfortunately I can't fit detection of mouse button to toggle painting (also not sure how, without two more event handlers…)

u/Kalanchoe

Nice! moveTo is unnecessary if you already have beginPath and lineTo; c.offsetWidth/1920 and c.offsetHeight/1080 are both equal to about .2958 (at least on the desktop): https://www.dwitter.net/d/809
u/FireFly

Won't c.offsetWidth and c.offsetHeight change when the user goes fullscreen? I wanted to support both not-fullscreen and fullscreen equally well. Good point about moveTo!

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FireFly

remix of d/2973 by u/FireFly

function u(t) {

for (x.moveTo(c.width |= i = 80,0); i--; x.lineWidth=8)
  x.lineTo(i*26, 540 + C(i*3+t*2)*S(i/25)*400);
x.fill(x.lineTo(0,0))

Jul 31 2017 3:21 PM UTC

}// 125/140

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u/sigveseb

Black/white always looks good :)

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FireFly

remix of d/1690 by u/FireFly

function u(t) {

s=t?t<.1?s.replace(/\d/g,i=>+i?'-0+1+0-':'+1-0-1+'):s:'0';c=s[t*60|0];c<2?x.translate(0,16,x.fillRect(0,0,3,16)):x.rotate(c+1.05)

Mar 3 2017 4:49 PM UTC

}// 129/140

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Same as parent, but golfed and abusing time for the first 6 frames to evaluate/expand the L-system. The straight line at the start is an artifact of this and the particular choice of system.

u/donbright

love this method
u/SpecialAgent

love this series
u/katkip

#fractal

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FireFly

remix of d/24093 by u/TGY

function u(t) {

with(x)for(i=w=128;i--;fillStyle=R(i%2?fillRect(X=i%16*64,Y=i*8&-w,t=X+Y&w,t)|w:Y/w%7||fillText('♜♞♝♚♛♝♞♜'[X/w^Y/w],X,Y+w)))font=w+'pt s'

Oct 14 2021 10:32 PM UTC

}// 137/140

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pieces #chess

u/pavel

font='4cm"'
u/FireFly

ohh good one, didn't know about the font-family name trick
u/TGY

now we need to combine 2 dweets into single XD
u/DataMeta

fit them together with compression, but would be more interesting to jam it into 140 :)
u/FireFly

I can do a full chess board in 151c currently, but it *would* be really satisfying to fit it into the 140c without compression tricks indeed

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FireFly

remix of d/24124 by u/FireFly

function u(t) {

Z='♜♞♝♚♛♝♞♜♟♟♟♟♟♟♟♟',eval(unescape(escape`𭱩𭁨𚁸𚑦𫱲𚁩👷🐱𜠸𞱩𛐭𞱦𪑬𫁓𭁹𫁥👒𚁩𙐲🱦𪑬𫁒𩑣𭀨𦀽𪐥𜐶𚠶𝀬𦐽𪐪𞀦𛑷𛁭👘𚱙𙡷𛁭𚑼𭰺𩡩𫁬𥁥𮁴𚁚𦱩𛰲𧠨𪐾𝠴𚐪𝠳𧑼𯀧𙰬𦀬𦐫𭰩𚐩𩡯𫡴🐧𝁣𫐢𙰊`.replace(/u../g,'')))

Oct 18 2021 10:13 PM UTC

}// 129/140

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#chess board

u/FireFly

I've stared at this for too long... don't think I can get it below 146 decompressed (with Z inlined). Would be rad if we could squeeze those last characters out though and get it down to 140 without compression :)
u/tomxor

I have an imperfect 142
u/Agnes

This is 145 but I don't remember if the new indexing is actually shorter or not than yours: for(i=w=128;i--;x.fillStyle=R(i%2?x.fillRect(X=i%16*64,Y=i*8&-w,m=X+Y&w,m)|w:x.fillText('♜♞♝♚♛♝♞♜♟ '[Y++%7?++Y%5?9:8:i/2%8],X,Y+w)))x.font="4cm'"

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FireFly

function u(t) {

for(c.width|=i=N=t/2+5;i-->0;)x.lineTo(960+C(A=i/N*31.4)*500,540+S(A)*500);x.fill('evenodd')

Aug 24 2017 12:19 PM UTC

}// 92/140

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u/donbright

like magic spell

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