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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robbyg

function u(t) {

c.width|=0
r=y=>Math.random()*y
a=i=>{for(z=500;z--;)x.fillRect(520+S(t)*400+i*100+r(50),440+r(200),r(5),r(5))}
for(i=9;i--;)a(i)

Jan 28 2019 7:16 PM UTC

}// 129/140

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Static #default

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rodrigo.siqueira

remix of d/11965 by u/pavel

function u(t) {

for(x.fillRect(0,0,i=3e3,i);Q=S(--i*i);x.clearRect(960+150*(S(b)*4+S(i+t)*Q),540+150*(C(i*i)-(t%4>2?T(b+t):S(b+t))),4,4))b=i%6+t+(t%2>1?0:i)

Jan 28 2019 2:40 PM UTC

}// 140/140

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Torus, spheres, flow and bubbles

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u/rnbw

now THIS is a demo!
u/katkip

Yeah he win
u/13thptr

woah
u/joeytwiddle

Superb! Golf the end with i*(t%2>1) or i*!(t&1)
u/rodrigo.siqueira

Thanks @joeytwiddle for the golf trick. i*(t&1) also works and it's even shorter. And I found that t%4>2?... can be converted to t&2?... It works as a counter to change the function each 2 seconds.
u/yonatan

Also, since T and S take the same arguments (t%4>2?T(b+t):S(b+t)) can be (t&2?T:S)(b+t)
u/lionleaf

Wow! Now we're talking
u/vain

Wow, three fx in this tiny code? Great!

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katkip

remix of d/11979 by u/katkip

function u(t) {

c.width*=1;for(i=900;i--;)k=i*2+t,l=250-S(i+S(C(i))*C(k*(3+t/2|0)))*250,x.fillRect(960+C(k)*l,540+S(k)*l,10,10)

Jan 28 2019 1:06 PM UTC

}// 111/140

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Void organic thing inside another thing. It gets powerful every 2 seconds

u/joeytwiddle

Curious. Also #smokedweeteveryday

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joeytwiddle

remix of d/11968 by u/joeytwiddle

function u(t) {

c.width|=0;o=t*7%15.7-22/7;j=o>0;w=(99-j*80-j*o*1.6)*S(!j*o+j*o*4);x.ellipse(920,850-j*600*S(o/4)-w,200-w,200+w,0,0,7);x.fill()

Jan 27 2019 5:54 AM UTC

}// 127/140

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New_Core's bouncing ball + squash = jumping jack

u/katkip

Nice
u/katkip

#physics #jelly
u/DataMeta

Delightful!
u/joeytwiddle

Change o*4 to o*3 for a slower wobble

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joeytwiddle

remix of d/2754 by u/New_Core

function u(t) {

P=200;A=Math.abs;t?c.width|=0:a=1;d=A(500*S(t));a=d<5?20:a<0?0:a-.1;x.ellipse(P+A(P*t%3040-1520),840-d,a*S(t*9)+P,a*C(t*9)+P,0,0,7);x.fill()

Jan 27 2019 5:39 AM UTC

}// 140/140

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New_Core's bouncing ball + walls

u/13thptr

great #bounce #ball

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metamero

remix of d/11966 by u/metamero

function u(t) {

eval(unescape(escape`琿挮睩摴桼㵯湣汩捫㵥㴾笨愽攮砪⡦㴵⽩湮敲䡥楧桴⥼〩㰴㽍帽ㄼ㰨愪㔫⡫㴨攮礪晼〩⤩㨰紺䴽㔳ㄱ㭦潲⡩㴲〬稽㈱㘻椭ⴻ⥍☱㰼椦♸⹦楬汒散琨⡩⼵簰⤪稬椥㔪稬稬稩㭴桲潷⁍⬧‧⭓瑲楮朮晲潭䍯摥偯楮琨䴩`.replace(/u(..)/g,"$1%")))

Jan 26 2019 9:37 PM UTC

}// 140/140

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now compatible with these new dweets rendering fonts represented by #unicode characters : draw unicode #compressed tiles / bitmaps / glyphs : 3x5 for BMP only or 4x5 for full unicode code point range #interactive #tool

u/metamero

compressed using d/11848
u/katkip

This is awesome. Press F to pay respect
u/metamero

works with d/11941 d/11957 etc
u/donbright

#paint

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pavel

remix of d/11963 by u/cantelope

function u(t) {

for(x.fillRect(0,0,i=2e3,i);Q=S(q=--i*i);x.clearRect(960*(z+S(b)*3+S(p)*Q)/z,540+960*(C(q)-C(b+t))/z,s=99/z/z,s))z=6+C(b=i%6+t)*3+C(p=i+t)*Q

Jan 26 2019 8:47 PM UTC

}// 140/140

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#uncompressed in black and white

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u/adaq

coolio
u/cantelope

(╯°□°）╯︵ ┻━┻
u/cantelope

this one seems to outperform my original, probably due to all the color calls in mine. One thing I haven't been able to figure out is why the same code performs better on codegolf.tk than dwitter. Not trying to advertise, but it's true and it was just an accidental product of how it was made i guess. E.g. compare d/11913 to https://codegolf.tk/a/366 The code is identical, but on my computer the latter runs visibly smoother. ¯\_(ツ)_/¯ If any plucky ducks want to compare sources, the frontend of codegolf.tk is here https://github.com/srmcgann/codegolf2.0, and the backend: https://github.com/srmcgann/codegolf/blob/ma…
u/rnbw

this is just a wonder to behold
u/joeytwiddle

It's worth investigating cantelope. Someone reported it here: https://github.com/lionleaf/dwitter/issues/4… How can we display framerate on CodeGolf.tk?
u/f8f82804

#d3 #perspective #model

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firegodjr

remix of d/9768 by u/firegodjr

function u(t) {

x.font='3em x'
for(m=j=32;j--;)for(i=63;i--;)x.fillText('◢◣◤◥'[Math.random()*4|0],i*m,j*m),x.fillStyle=R(b=(t*m+(i^(t*m-j)))%99*2)

Jan 26 2019 8:01 PM UTC

}// 130/140

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Fractal Burn

u/joeytwiddle

Noisy triangles remind me of this: https://twitter.com/BalintCsala/status/99216…

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f8f82804

remix of d/11941 by u/ETHproductions

function u(t) {

j=0;for(c of"縿Ϡ庽纵粇皷皿簡线粧粿㪿䘿㨿嚿ᒿ")for(;~++j%20;)i=j-1,c.charCodeAt()>>i%20&1&&x.fillRect((i/5|0)%16*40,(i%5+6*(i/80|0))*40,40,40)

Jan 25 2019 10:37 PM UTC

}// 126/140

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writing these by hand is a great lesson in #binary and #hex

u/metamero

create your own glyph with d/11967

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genuinebyte

function u(t) {

G = function G(x){return -127 * C(t*x*1.57)+128}
x.fillStyle=R(G(1), G(0.5), G(0.2), 1)
x.fillRect((G(0.15)-1)*7.55,0,5,1080)

Jan 25 2019 6:28 PM UTC

}// 125/140

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My first dweet is awfully colorful.

dwitter.net | joeytwiddle (61457)