Dweets awesomed by u/akm

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: #Opposites

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akm

remix of d/11526 by u/katkip

function u(t) {

c.width*=1;for(i=342;i-=9;)x.beginPath(),x.ellipse(960+S(i/2+t)*700,540+C(i/2+t)*300,i,i,7,9,1,t*20),x.fillStyle=i%2?'#ff2':"#f6f",x.fill()

Dec 22 2018 10:51 PM UTC

}// 139/140

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katkip

function u(t) {

c.width*=1;for(i=340;i--;)x.beginPath(),x.ellipse(960+S(i/3+t)*900,540+C(i/3+t)*300,i,i*2,i,0,1,20),x.fillStyle=i%2?'#ff2':"#f0f",x.fill()

Dec 22 2018 7:04 PM UTC

}// 138/140

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#illusion

u/magna

Wow!
u/joeytwiddle

It really looks like it's moving!
u/katkip

i feel irony

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katkip

remix of d/11520 by u/katkip

function u(t) {

x.fillRect(0,0,2e3,2e3);for(j=800;j--;)
x.clearRect(960+S(j*8e5+j+C(j+t))*500,540+C(j*8e5+j-S(j))*500,10,10)

Dec 22 2018 3:05 PM UTC

}// 108/140

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Demo of the 8e5 number. It splits lines

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akm

remix of d/11450 by u/katkip

function u(t) {

q=t/25;x.fillRect(0,0,2e3,2e3);for(i=500;i--;)x.clearRect(960+S(i-1*q)*(500-i),540+C(i-t*q)*(500-i+S(t)),5,5)

Dec 18 2018 4:28 AM UTC

}// 109/140

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is it rolling towards or away from you?

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katkip

function u(t) {

q=t/25;x.fillRect(0,0,2e3,2e3);for(i=500;i--;)x.clearRect(960+S(t-i*q)*(500-i),540+C(t-i*q)*(250-i+S(t)*99),8,8)

Dec 17 2018 6:20 AM UTC

}// 112/140

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#galaxy

u/jamespwilliams

Cool!
u/otomakan

Gorgeous!
u/C010011012

one of the oscillator things with the θ=r*t I see

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cantelope

remix of d/11424 by u/pavel

function u(t) {

eval(unescape(escape`景爨硛氽❦楬汓瑹汥❝㴧⌰〰㔧ⱸ学㴧晩汬剥捴❝⠰ⰰⱫ㴲攳Ⱬ⤻樽ⴭ款㸶㭸学崨⡩⵪⬴⤪本太本猽未术㈰ⱳ⤩椽欥㘴Ⱨ㴹㘰⼨㌸⵪⤬硛汝㵠桳污⠤笨夽⠸⭃⡩⼴⤪䌨⡴⨳〭橼〩⼴⤪㌩⤪㐰⬱㐰紬㤹┬㜰┬⸵总`.replace(/u(..)/g,"$1%")))

Dec 15 2018 3:06 PM UTC

}// 140/140

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akm

remix of d/7151 by u/prplz

function u(t) {

c.width|=0;x.scale(20,20);for(i=96,t*=9;i--;)for(j=54;j--;)if((i^j)&1)x.fillRect(i+S(t+j/9),j+S(t+i),z=1.1,z)

Dec 15 2018 12:04 AM UTC

}// 109/140

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this may hurt your eyes

u/joeytwiddle

yikes!
u/katkip

I had eyes....

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katkip

remix of d/11305 by u/katkip

function u(t) {

t||x.translate(960,540);x.rotate(1.57);x.fillRect(0,500,5,20),x.fillStyle=R(128+T(t),128+C(t)*99,128+S(t*3)*99);x.drawImage(c,0,0,2e3,1e3)

Dec 5 2018 3:04 PM UTC

}// 138/140

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Looking at this saved me from suicide

Show more comments…
u/firegodjr

Insanely cool
u/magna

Wow! This is rich. #keepsongiving And I also hope you're feeling OK (re: the suicide comment, that should never be overlooked.)
u/katkip

I am pretty retarded, sorry :'}
u/metamero

@magna thanks for your precise words!!
u/metamero

an @katkip I'm your fan <3 <3
u/donbright

reach out if you need it, 1-800-273-TALK (8255)
u/joeytwiddle

#kaleidoscope
u/katkip

number #1 in top, 10 dec 2018, yay
u/katkip

(weekly)
u/13thptr

very good, especially in fullscreen
u/KilledByAPixel

beautiful
u/lars-erik

138 bytes doesn't get better than this! 🤯❤

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metamero

function u(t) {

eval(unescape(escape`景爨稽㜲Ᵽ⹷楤瑨簽欽〻欼㈵㔻欫⬩漽⡲ⱳⱡ⤽㹸⹲散琨爬猬愬愩Ⱪ㵫☱㔬樽款㸴ⱪ☽ㄵⱰ㴴㈰⭺⩩ⱱ㵺⩪Ⱪ㰱㔿⠨椫権┲㼰㩯⡰ⱱⱺ⤬漨瀫⡫┲㼴㠺㐩ⱱ⬨欦㈿㐸㨴⤬㈰⤩㨰㭸⹦楬氨❥癥湯摤✩`.replace(/u(..)/g,"$1%")))

Nov 30 2018 5:59 PM UTC

}// 134/140

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#OpticalIllusion

u/katkip

#illusion cool
u/metamero

for(z=72,c.width|=k=0;k<255;k++)o=(r,s,a)=>x.rect(r,s,a,a),i=k&15,j=k>>4,j&=15,p=420+z*i,q=z*j,i<15?((i+j)%2?0:o(p,q,z),o(p+(k%2?48:4),q+(k&2?48:4),20)):0;x.fill('evenodd')
u/ceaga

kanji chester!

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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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