Dweets awesomed by u/logistikalism@gmail.com

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: #ScaryMovies

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Sedictious

function u(t) {

c.width*=1
for(i=0;i<300;i++){x.fillStyle=R(100*(i%2),50+50*(i%3),200);x.fillText('⬤',S(t)*500*C(30.144*i)+960,C(3*t)*500*S(60.288*i)+540)}

Mar 10 2019 8:39 AM UTC

}// 139/140

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tomxor

function u(t) {

b='㰐䘀䍠Ⅳ冘⫘ݠ᪸㿌چ筂ᬢ橒⠬'
eval(unescape(escape`潮浯畳敭潶攽攽㹵㵥㭣⹳瑹汥㴧捵牳潲㩮潮攧㬠景爨挮睩摴栽椽㌲〻椭ⴻ⤠戮捨慲䍯摥䅴⡙㵩㸾㐩㸾⡘㵩☱㔩☱☦⁸⹦楬汒散琨堫⡵⹸㸾ㄩⱙ⬨甮社㸱⤬ㄬㄩ`.replace(/u(..)/g,"$1%")))

Mar 10 2019 1:39 AM UTC

}// 137/140

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Hi Bee :) #atari #retro

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u/tomxor

I also have a colour one which induces far more nostalgia, alas, it's 200 chars.
u/tomxor

Move your mouse
u/tomxor

Inspired by d/12618
u/DataMeta

Neat!
u/katkip

So #cute
u/magna

Related: d/10864
u/magna

Also related: d/3271
u/magna

Aaand: d/2633
u/magna

I think we have enough to write a full emulator now.
u/tomxor

:D I wish we could amalgamate dweets into a super dweet! We could build the GEM desktop 140 chars at a time.
u/tomxor

#bitmap #sprite
u/tomxor

#mouse
u/tomxor

#bee
u/tomxor

#pixelart

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logistikalism@gmail.com

function u(t) {

t/=2.5
a=1920/4
b=1080/4
d=((5**0.5)-2)/2*t
x.fillRect(2*a+a*C(t)*d,2*b+b*S(2*t)*d,5,5)

Mar 9 2019 8:42 PM UTC

}// 87/140

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andrea270872

remix of d/12707 by u/rsrsrs

function u(t) {

for(c.width|=i=50,k=75;i--;x.rect(960-(i*k/2),540-(i*k/2),i*k,i*k))x.setTransform(1,0,0,1,500,250)*x.rotate(S(1+i*t/500));x.fill('evenodd')

Mar 9 2019 7:31 PM UTC

}// 139/140

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a more centered rotation (perhaps :> )

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katkip

function u(t) {

c.width*=1;t||(Y=0);f=p=>S(p*S(p+t/9))<0;for(i=200;i--;)for(j=200;j--;)if(f(i|j))x.fillRect(560+i*4,100+j*4,4,4)

Mar 9 2019 6:37 PM UTC

}// 112/140

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andrea270872

function u(t) {

c.width|=j=72
for(;j-=9;x.lineWidth=C(j)*90){
x.beginPath()
for(i=21;i--;)x.lineTo(i*99,S(t*5+i)*40+(j*11+t*500)%1e3),x.stroke()}

Mar 9 2019 6:07 PM UTC

}// 129/140

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Returning waves ver2

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danny@hille.dk

remix of d/12707 by u/rsrsrs

function u(t) {

for(c.width=i=200;i--;x.rect(C(i*t/2),S(i*t/2),i,i),x.rotate(t/1e4));x.fill('evenodd')

Mar 9 2019 5:34 PM UTC

}// 86/140

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morier intended...

u/Jezza

#waitforit

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andrea270872

function u(t) {

$=t*97%11*180
H=t*500%1080
x.fillStyle=R(t*10%255,$/4,$/2,.4)
x.setTransform(1,0,0,1,$,H),x.rotate(t/3)
x.fillRect(0,0,50,50)

Mar 9 2019 3:21 PM UTC

}// 125/140

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gradient crystal scales ver2 (shorter thanks to a great suggestion)

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rsrsrs

remix of d/12703 by u/rsrsrs

function u(t) {

for(c.width|=i=50,k=75;i--;x.rect(960-(i*k/2),540-(i*k/2),i*k,i*k))x.rotate(S(1+i*t/500));x.fill('evenodd')

Mar 9 2019 11:11 AM UTC

}// 107/140

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weird patterns; still have not figured out how to rotate the squares in place

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pavel

remix of d/1112 by u/sigveseb

function u(t) {

for(let w=c.width=127,i=9086,a,b,n,B;a=i&w,b=i--/w;x.fillRect(a,b,1,1/(t+a/n&1^b/n)))n=b-20,B=(w*S(t*9+n/9)+(a-40)**2+n*n)/1e3,n*=B>1||C(B)

Mar 7 2019 8:31 PM UTC

}// 139/140

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#improved performance

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u/pavel

Original runs at 6fps on my machines this runs at 60fps. I lowered the resolution by a quarter (4x perf) and golfed 13 chars to let me declare all vars locally (2x perf).
u/tomxor

wow! this is a massive perf improvement, the original was impressive but I couldn't really see it realtime. Nice one :)
u/katkip

how
u/nender

Wow! This is amazing!
u/sigveseb

Nice!
u/f8f82804

#raytrace #d3 #pbr
u/Cloud

Cool!!!

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