New #tribute dweets

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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pavel

function u(t) {

for(c.width=i=640,n=32,q=2*t%1*n|0;i--;x[X>7&X<12&[810,865,1858,9808][q>>3]>>i/8+X+6?'fillRect':'strokeRect'](X*n-q,(i&-n)-q,n,n))X=i%n

Apr 16 2020 7:25 PM UTC

}// 135/140

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Keep Gliding Mr Conway

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u/pavel

#gameoflife #glider
u/pavel

https://www.reddit.com/r/perfectloops/commen…
u/Xen

love it!
u/joeytwiddle

#tribute
u/rodrigo.siqueira

Wow! I've been using this Glider image (also known as HACKER EMBLEM) for years as my computer wallpaper, here is full hd version of my wallpaper: https://in.bot/agi/Hackers-emblem-Carbon-Gli…
u/Qwitter

Life was definitely a gateway drug for me as well.

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rodrigo.siqueira

remix of d/16023 by u/rodrigo.siqueira

function u(t) {

for(c.width=a=400;a--;)x.arc(99,99,(2+S(a*2+t)+a*t%500),1.61,7.8),x.globalAlpha=.3,x.fillRect(a,188+20*S(a)*C(a/5)+C(a/2)*3,5,58);x.stroke()

Nov 24 2019 8:56 PM UTC

}// 140/140

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Kraftwerk's Antenna with city skyline. 📡

u/DataMeta

📻📺📶
u/joeytwiddle

#scene #tribute

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metamero

function u(t) {

c.width|=0
for(j=12;j--;)for(i=36,h=0;a=90+82*S(i/5+t),i--;h+=a)i+j&1||x.fillRect(h,j*90,a,90)

Nov 16 2019 11:11 AM UTC

}// 94/140

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animation-recreation of "Movement in Squares" by Bridget Riley 1961 #OpArt

u/katkip

good!
u/joeytwiddle

#art #tribute
u/metamero

i think like this for(i=69,h=0;a=47+43*S(i/6+t),i--;h+=a) could be more accurate

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KilledByAPixel

function u(t) {

c.width|=0
for(i=282;i--;x.fillText("☻♥"[i>t*2?0:(x.fillStyle='red',1)],49+(i%21)*88+S(i*i)*19,85+(i/21|0)*74+S(i**3)*11))x.font="5em'"

Aug 5 2019 3:39 AM UTC

}// 135/140

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282 PEOPLE have DIED in mass shootings just THIS YEAR in the United States!

u/13thptr

:/
u/katkip

sad
u/joeytwiddle

#tribute
u/deobfuscate

this just feels too dark

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taupelink

remix of d/15197 by u/taupelink

function u(t) {

f=(r,X)=>{x.fillStyle='#'+r;z=2e3*!X;for(i=32;i--;)x.fillRect(8*X+24*i,X*(X%5),8+z,640+z)};f('000',0);f('30F',98);f('F33',76);f('3C6',54)

Jul 30 2019 1:39 AM UTC

}// 137/140

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RIP Carlos Cruz-Diez. I am trying a Dwitter-size homage or three. https://www.bbc.com/mundo/video_fotos/2015/1…

u/joeytwiddle

#tribute English article: https://www.bbc.com/news/world-latin-america…

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rodrigo.siqueira

remix of d/12440 by u/rodrigo.siqueira

function u(t) {

t||(a=b=0)
for(i=5e3;i--;)x.fillStyle=R(C(a)*200,S(a)*b/3,t*42),x.fillRect(960+b*S(a*.8),540-b*C(a*.8),1,1),a+=1.9*C(2.5*a)+C(t/5),b+=.00076

Jul 7 2019 9:15 PM UTC

}// 140/140

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Feigenbaum Flower. Homage to Mitchell Feigenbaum (1944-2019). He demonstrated the universal character of dynamical non-linear systems, which has made possible the systematic study of chaos. In 1975, using the small HP-65 calculator, he discovered that the ratio of successive distances between bifurcation events tends to a constant δ ≈ 4.66920... This "ratio of convergence" of period-doubling bifurcations is now known as the first Feigenbaum constant. #bifurcation #attractor #fractal #chaos #math

u/taupelink

This is a great tribute. RIP.
u/donbright

really nice
u/artfarnaa

Rodrigo - are you working full time on this fractal stuff? Super impressive if its only a hobby. Great work.
u/rodrigo.siqueira

#tribute

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veubeke

function u(t) {

with(x)t?(fillStyle='#fff',A=(Y,R,X=0)=>beginPath(arc(99+X,45+Y,R,0,7),fill(),stroke())||A,A(0,5)(1,5,10)(0,.5)(1,.5,9)(22,20)):scale(9,9)

Jul 1 2019 7:57 PM UTC

}// 138/140

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http://www.hurriyetdailynews.com/argentine-c…

u/joeytwiddle

#tribute
u/magna

:(

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metamero

function u(t) {

c.width|=onmousemove=e=>X=e.x
t?M.map((e,i)=>e||x.fillRect(i?8+(i-1>>3)*136:X*1920/innerWidth-60,i?8+(i%8)*44:999,120,40)):M=[...Array(113)]

May 14 2019 8:05 PM UTC

}// 140/140

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#breakout #tribute #interactive come to discord chat to draw the ball and test collisions

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pavel

remix of d/13492 by u/KilledByAPixel

function u(t) {

for(c.width%=i=3600;i--;x.fillRect(535+S(t)*300+i%9*99+i/9%10*5/a,440+(i/90|0)*5-40/a,6,6))a=1/(1+7**(t-5-S(i*i)-i/500)),x.globalAlpha=a*a

Apr 27 2019 9:29 AM UTC

}// 138/140

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mr #default I don't feel so good #tribute

u/pavel

Awesome idea, I just had to #uncompress it.
u/pavel

#uncompressed
u/KilledByAPixel

Wow, better thenthe original and uncompressed. Damn you pavel.
u/katkip

#thanos is my daddy

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pavel

remix of d/13487 by u/KilledByAPixel

function u(t) {

for(i=t?c.width|=d=_=>u[j=q&-64|p>>6]=-!u[j]|1:(p=q=540,r=7,s=4);i--;)u[i]||x.fillRect(i?i%64*64:p+=r*=d(p+=r),i?i:q+=s*=d(q+=s),z=i?64:9,z)

Apr 27 2019 4:26 AM UTC

}// 140/140

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#breakout #tribute

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u/pavel

Had to make some visual sacrifices to get this #uncompressed
u/pavel

I discovered p+=r*=d(p+=r);q+=s*=d(q+=s) as part of messing around with this. Why does it work?
u/pavel

:)
u/KilledByAPixel

Oh wow, nice! That's the code that updates the position, velocity and applies collision for x and y. It needs to call the d function to check its colliding and also set the block to 1 if it does. It needs to check x and y separately so it knows which side to bounce off
u/pavel

Notice how d only takes one argument, and it ignores it.
u/KilledByAPixel

I see what you did there. So many great tricks in this one.
u/pavel

p+=r*=d(p+=r) the inner p+=r increments p and d ends runs with that value, however the outer p+= caches the old value of p so when d resolves the inner p+=r is silently ignored!
u/pavel

#physics

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