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.

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Current theme challenge: #Food

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yonatan

function u(t) {

with(x)for(c.width|=i=26;i--;clip(fill(arc(960+S(z/9+t)*T,T=540,z**3/9,0,9))))fillStyle=`hsl(${i+t*9&1?0:T} 50%${i*2}%`,beginPath(z=i+t*9%1)

Sep 7 2019 9:55 PM UTC

}// 140/140

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#tunnel

u/0x04

Wow, great piece! <3
u/aleamb

amazing!

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mildlybean

function u(t) {

for(i=a=c.width|=0;i--;x.fillRect(i,i^X?F(i):Y,9,15))t?F=f=>S(f/99+t)*66+999:X=Y=v=b=0;Y+=++v;if(Y>F(X=(X+a+b)%a))Y=F(X),v=-v,b+=C(X/99+t)*9

Sep 7 2019 6:56 PM UTC

}// 140/140

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Gravity on a curved, moving surface

Show more comments…
u/KilledByAPixel

👍
u/atgz

very impressive
u/metamero

nice!! #gravity #physics
u/0x04

Nice to see that you cracked the 140 char mark! 👌
u/joeytwiddle

Like a roulette simulator! Can you guess where it will stop?
u/katkip

I consider this a life form
u/iverjo

Impressive for a dweet!

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DataMeta

function u(t) {

r=Math.random,m=r(n=r(o=r(l=255)))
with(x)for(j=768;j--;beginPath(fill()))fillStyle=R(l*m,l*n,l*o,.1),
arc(64*(j%31),64*(j/31|0),r()*51,0,7)

Sep 6 2019 1:40 AM UTC

}// 140/140

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#psychedelic

u/taupelink

groovy!
u/DataMeta

haha ty

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katkip

function u(t) {

fs=0;
t||(X=Y=0);c.onmousemove=e=>{X=e.x/(Z=(fs?1:0.295)),Y=e.y/Z};x.beginPath(),x.fillStyle="#0002",x.arc(X,Y,10,0,7),x.fill();

Sep 5 2019 9:51 AM UTC

}// 128/140

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Precise paint. If you want to use it on fullscreen, change fs to 1

u/katkip

^ edit: isn't precise when fs=1
u/Fime

On mobile, at least in opera touch there is always an offset in dweets which use mousemove

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dmoura

function u(t) {

c.width|=0
x.translate(960,540)
x.rotate(-t/2)
x.fillStyle = R(0,50,100,0.2)
for(i=0;i<1300;i+=.3)
  x.fillRect(C(i)*i,S(i)*i,i/6,i/8)

Sep 4 2019 10:50 AM UTC

}// 134/140

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Galactic swirl

u/13thptr

nice style
u/aleamb

stylish!
u/dmoura

thanks! :-)
u/lionleaf

#swirl
u/iverjo

Beautiful

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smtsjhr

function u(t) {

c.width=1920;
x.lineWidth=3;
x.beginPath(); 
for(i=0;i<400;i++){
k=4000*.98**i;
x.lineTo(960+k*S(i*.02*t),540+k*C(i*.02*t));
}
x.stroke();

Sep 4 2019 8:58 AM UTC

}// 139/140

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Line Spiral

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rodrigo.siqueira

remix of d/12319 by u/rodrigo.siqueira

function u(t) {

c.width|=X=Y=Z=1
for(i=3e3;i--;x.fillRect(500*(t%6.2-i%3-X*C(t*9)/33),800-i%3*90-(1.3+S(t))*Z*6,5,5))Z+=(X*Y-Z)/39,X+=(Y-X)/9,Y+=X*(27-Z)/97

Sep 2 2019 2:05 PM UTC

}// 140/140

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Three Lorenz Butterflies #lorenz #attractor #butterfly

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taupelink

function u(t) {

for(i=d=e=1e3;i--;x.fillRect(d*z,e*z,d&e,d%e))[d,e]=[(r=Math.random(z=90)*z|0)/5+C(d)+1/d,r%9+T(d)],x.fillStyle='#'+'F9069C9F'.substr(r%6,3)

Sep 2 2019 2:39 AM UTC

}// 140/140

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LimeLaser

remix of d/15597 by u/LimeLaser

function u(t) {

X=s=>960+500*C(s*t)
Y=s=>540+500*S(s*t)
x.beginPath()
x.moveTo(X(1),Y(2))
x.bezierCurveTo(X(4),Y(8),X(16),Y(32),X(64),Y(128))
x.stroke()

Sep 1 2019 8:35 AM UTC

}// 136/140

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Curved Geometry Drawer (Alternative Version)

u/LimeLaser

I use the same values as last time, but treat them as scales rather than offsets.

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taupelink

remix of d/15591 by u/taupelink

function u(t) {

for(i=d=e=f=1e3;i--;x.fillRect(d*z,e*z,f,f))[d,e,f]=[1+(r=1+Math.random(z=170)*9|0)+f*C(d)/(q=r%3+r/20),f*(1-S(f)/3)*(2-C(d+f)),q+.1/f]

Sep 1 2019 12:34 AM UTC

}// 135/140

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d/15593

u/DataMeta

I see people with elaborate headgear facing away or robots facing us
u/tomxor

hah, same, but not the robots

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