Dweets awesomed by u/pavel

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: #Opposites

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KilledByAPixel

function u(t) {

for(k=(c.width=s=99)*s;--k;!t?T[k]=r%9:p<8&&p&&T[r=k+98+r%3]<7&&(--T[k],++T[r]))r=Math.random(x.fillRect(i=k%s,j=k/s|0,1,(p=T[k])/9))*1e9|0

Jul 27 2020 11:08 PM UTC

}// 139/140

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#Liquid Sim 🌊

Show more comments…
u/tomxor

So cool! haven't seen anything like this before.
u/KilledByAPixel

Thanks! It is an original idea but may have been done before. Need to experiment with it more.
u/tomxor

After pulling it apart this is a lot like the doom fire et al - as an automata it is a non-totalistic anisotropic neighborhood. But having it interact with the static geometry as part of the state is a neat idea. I used a similar technique here: d/18720 but no interesting geometry.
u/tomxor

Now you got me back into automata again :P wondering what other fun anisotropic neighborhoods there might be.
u/donbright

this is incredible
u/sigveseb

This fire stuff is so cool

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New_Core

function u(t) {

for(c.width|=j=2;j--;x.beginPath())for(i=4;i--;x.stroke())x.lineTo(a=50*i*S(v=t*2+j*3-i/4)+t*300%2e3,b=540+i*99+-50*(i+1)**C(i+4+v))

Jul 26 2020 10:33 AM UTC

}// 132/140

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running legs test

u/katkip

woah
u/13thptr

neat
u/KilledByAPixel

Is your dweet running? 🏃‍♂️
u/rodrigo.siqueira

There is a technique called neuroevolution (search for Evolving Virtual Creatures, by Karl Sims and also AI Learning to Walk And Run With Neuroevolution) where this kind of body movement spontaneously appears after the evolution of a genetic algorithm.
u/DataMeta

Exactly what came to mind, Rodrigo. Excellent dweet!

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nikoloffgeorgi

remix of d/18805 by u/nikoloffgeorgi

function u(t) {

c.width|=e=0;x.lineWidth=99;for(i=0;i<80;x.globalAlpha=i/80,x.beginPath(),x.arc(960,540,S((t+9)*i*.05)*80+400,e,e+=.3),x.stroke(),i++);

Jul 24 2020 8:06 PM UTC

}// 135/140

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u/magna

Love this!
u/ycloud

Great

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New_Core

function u(t) {

for(c.width|=j=4;j--;)for(i=6;i--;x.stroke())Z=800/(C(a=(~~(i%5/3+j)*11)+t)+3+S(t)),x.lineTo(960+(C(t)+S(a))*Z,560+(~~(i/2)%2/.7+C(t)-.8)*Z)

Jul 23 2020 12:23 PM UTC

}// 140/140

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u/DataMeta

#cube #d3

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rodrigo.siqueira

remix of d/19450 by u/katkip

function u(t) {

c.style='filter:invert(1'
for(A=a=b=i=1e4*(t<4);i--;a=S(b/7)*t+a/2+b*C(a/2)/3,b=b/2+S(A*4)/3,A=a)x.fillRect(a*6e3-2500,2e3-b*3e3,1,3/(1+t))

Jul 21 2020 2:00 PM UTC

}// 139/140

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Point of Impact #explosion

u/katkip

booom
u/DataMeta

whoa #waitforit
u/sigveseb

Worth the wait!

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logankyoung

function u(t) {

for(c.width|=k=i=960;--i;)x.fillText((q=S((j=i/k+t/4)*9))>0?'♂️':'♀️',k-i*C(j)+S(m=k*j)*(r=1e5/i),540+C(m)*r-i*S(j)),x.font=(r*q**2>>5)+"em"

Jul 21 2020 7:02 AM UTC

}// 140/140

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u/DataMeta

Nice! #tunnel

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danny@hille.dk

remix of d/15030 by u/KilledByAPixel

function u(t) {

c.style.filter=`blur(4px)sepia()hue-rotate(${t*99}deg)brightness(9`
for(i=z=c.width|=0;i--;)x.arc(960,540,500,q=C(i+t/1e3)*z-i,q)
x.fill()

Jul 15 2020 7:20 PM UTC

}// 138/140

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Plasmaball #plasma

u/magna

Neat!

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rodrigo.siqueira

remix of d/13693 by u/rodrigo.siqueira

function u(t) {

x.fillRect(0,0,2e3,2e3)
for(var i=5e3;i--;x.clearRect(999+999*X/4,1e3-Y*99-450,6,6))
var X=(U=2+C(i+t*5))*S(i*i),Y=U*S(i-X*2)

Jul 13 2020 7:43 PM UTC

}// 125/140

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Moving thing

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rodrigo.siqueira

remix of d/19376 by u/rodrigo.siqueira

function u(t) {

c.style.filter=`sepia(`
for(i=5e3;i--;f(250,540,300,t*i))f=(X,Y,s,r)=>s>77?f(X+s*C(r),Y+s*S(r*2),s/2,C(t+i)):x.fillRect(X*2.6,Y,t<3,.8)

Jul 13 2020 4:01 AM UTC

}// 136/140

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Infinity

u/andrea270872

Looks like stone! Very cool.
u/aleamb

wow!
u/sigveseb

Looks like a da Vinci pencil drawing or something

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Symmetries

function u(t) {

w=960;h=540;v=w+h*C(t);c.width+=0;x.translate(w,h);x.rotate(9*S(t/3));for(i=-9;i<9;i++)for(j=-9;j<9;j++)(i+j)%2||x.fillRect(i*v-w,j*v-h,v,v)

Jul 11 2020 10:56 PM UTC

}// 140/140

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First Dweet

u/joeytwiddle

Nicely done! #rotozoom
u/katkip

#checkerboard

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