Dweets awesomed by u/metamero

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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jick

remix of d/10609 by u/jick

function u(t) {

c.width=18;f=Math.floor
for(i=9;i--;)for(j=10;j--;){
r=S(f((t+=99)));
if (r-f(r)>(i/12)){
x.fillRect(i,j,1,1)
x.fillRect(17-i,j,1,1)}
}

Oct 22 2018 5:11 PM UTC

}// 135/140

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ersagun

remix of d/10578 by u/ersagun

function u(t) {

for(i=j=f=24;d=a=>C(t*f)*(a[0].charCodeAt(f)-9e3),f--;i+=d`◴∈⌹⌙⍈⌮⌠⌇⌢⌑⌆⌤⌾⍃⌣⌘⌯⌧〈⌳〉⌤⌬⌯`)j+=d`○⍈⌾⋻⌤⋧⌥⌬⌰⍕⍓⌗⌥⋼⌘⌭⋧〉⌔⌗⍃⌫⌛〈`
x.fillRect(i,j,9,9)

Oct 21 2018 3:43 PM UTC

}// 135/140

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#yeah I managed to remove 5 characters using tagged template literals. I can add 2 more harmonics(=4 characters) now.

u/New_Core

nice.. now you can do x.lineTo(i,j) x.stroke()

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tomxor

function u(t) {

x.fillRect(0,0,i=2e3,i)
for(t+=160;p=i&1,m=t/C(t/i)+p*(t/2+i%t),i--;)x.clearRect(
960+m*S(n=t/9+i*i)*C(!p*i/t),
540+m*C(n+p*2),s=3-C(n)*3,s)

Oct 17 2018 8:45 PM UTC

}// 140/140

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#space #planet #saturn

Show more comments…
u/joeytwiddle

Wow, beautiful! I am blown away. #dots #lighting #shading
u/lionleaf

Wow! That's amazing
u/magna

WOW!
u/sigveseb

no way!
u/yonatan

beautiful!
u/jellyedwards

That's incredible, well done!
u/jellyedwards

If you change this bit too use t it's like Saturn uses its ring as a hula hoop: 540+m*C(n+p*t)
u/katkip

woow... gj bro
u/keithclark

Nice!!!
u/aleamb

wow! superb!
u/iverjo

That's pretty rad
u/rnbw

my mind is officially boggled o_o
u/Purpzie

This is absolutely beautiful.
u/tomxor

Thanks for all the kind comments :) for those interested: the key is in the parity bit p=i&1 this allowed me to combine two different but similar functions by multiplying parts in an out on each iteration. You should be able to pull the two apart into something more intelligible.
u/magna

@tomxor are you on Twitter as @tomxor by any chance?
u/tomxor

I am not, nor am I on any other social network... unless you consider Github one :P but a different pseudonym..
u/jylikangas

Beautiful dweet!
u/aleamb

The Cosmos is all that is, or ever was, or ever will be. The contemplation of the this Cosmos stir us.
u/Renaud___

so Beautiful
u/ivylab

This is absolute badass
u/vain

OMG! This part blew me away!
u/jdspugh

Well done!

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yonatan

function u(t) {

c.width=-1
f=(u,v,a,r)=>r<1?x.lineTo(u,v):f(u+S(a)*r,v+C(a)*r,a*(z=0|t)+t/z,r/3)
for(i=1e3;i--;)j=i*2*Math.PI/999,f(150,84,j,55)
x.stroke()

Oct 17 2018 6:43 AM UTC

}// 139/140

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u/BalintCsala

What a coincidence https://math.stackexchange.com/questions/183…
u/yonatan

Wow! that's exactly how this works (circles around circles around circles)
u/katkip

Awesome
u/joeytwiddle

Yeah these wobbly circles are cool #spirograph #pattern
u/katkip

this is a low iteration #fractal

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pavel

remix of d/8136 by u/Friend

function u(t) {

onkeydown=e=>k=e.keyCode-73
w=2e3
s=32
x.fillStyle="hsl("+t*71+",99%,50%)"
t?x.fillRect(p%w,p/w,s,s):p=k=3
p+=2e6+(k<2?-s:s)*(k&1||w)
p%=2e6

Oct 16 2018 10:45 PM UTC

}// 140/140

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Rainbow Snake - Use IJKL to turn #interactive

u/pavel

Click the canvas once before pressing keys
u/pavel

#snake

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ms.roboto

function u(t) {

x.lineWidth=4
c.onclick=e=>S=[e.clientX*3.4,e.clientY*3.4,1,0,Math.PI*2,1]
S[2]<2000&&(x.beginPath(),S[2]*=1.2,x.arc(...S),x.stroke())

Oct 16 2018 11:39 AM UTC

}// 134/140

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Click - Waves

u/magna

#interactive

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ms.roboto

function u(t) {

x.lineWidth=4
c.onclick=e=>S=[e.clientX*3.4,e.clientY*3.4,0,0,6.3]
S[2]<2000&&(x.beginPath(),S[2]+=9,x.arc(...S),x.stroke())

Oct 16 2018 10:54 AM UTC

}// 124/140

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Click - Concentric circles

u/magna

#interactive
u/katkip

I love it.

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BalintCsala

function u(t) {

eval(unescape(escape`景爨挮睩摴桼㵙㴹〻夭ⴻ⥦潲⡘㴹㤻堭ⴻ砮晩汬剥捴⠹㤹⭃⡡⤪⠳〰⭫⨹⤬太㄰⭓⡡⤪⠱㈰⭫⨷⤬㄰ⰱ㈩⥸⹦楬汓瑹汥㵠桳氨〠⑻⡫㵙┵☦⡘⭴⨹㤫⡙⼵簰⤪㐩┹㸱⤪㔰紥⑻㘰⭃⡡㵘⼳㈩⨲〭欪㌰紥总`.replace(/u(..)/g,"$1%")))

Oct 12 2018 8:51 PM UTC

}// 136/140

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Very fake bump mapping with very sad framerate

u/BalintCsala

pre-compression: for(c.width|=Y=90;Y--;)for(X=99;X--;x.fillRect(999+C(a)*(300+k*9),Y*10+S(a)*(120+k*7),10,12))x.fillStyle=hsl(0 ${(k=Y%5&&(X+t*99+(Y/5|0)*4)%9>1)*50}%${60+C(a=X/32)*20-k*30}%
u/aleamb

awesome!
u/magna

Looks solid.
u/yonatan

this is great!
u/lionleaf

#bumpmapping #bricks #d3 #chimney :D

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veubeke

function u(t) {

c.width^=0
for(i=190;i--;)with(x)restore(save(),translate(120*(i/11|0),i%11*120),rotate((1-i%2*2)*S(t-i/100)/2),fillRect(-45,-45,90,90))

Oct 11 2018 6:47 PM UTC

}// 136/140

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Inspired by beesandbombs but had to switch to squares. See https://twitter.com/beesandbombs/status/1050…

u/Xen

i've been watching ;-) amazing work V x
u/vain

what for a great optical illusion

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yonatan

function u(t) {

a='fillRect'
b='clearRect'
n=C(t/2)>0
x[n?b:a](0,0,2e3,2e3)
for(i=9;i--;x[n?a:b](960+(i-4-n/2)*d,540-d,d/2,d*2))d=330-C(t)*220

Oct 11 2018 9:19 AM UTC

}// 126/140

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#default

Show more comments…
u/katkip

this
u/katkip

is one
u/katkip

of the best defaults
u/katkip

I have ever seen
u/katkip

#illusion
u/magna

Dave would be proud.
u/joeytwiddle

#infinite #loop

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