Dweets awesomed by u/donbright

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

Please log in (or register) to post a dweet (copy-paste the code somewhere safe to save it meanwhile)


    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: #Food

show FPS hide FPS share fullscreen

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

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

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

show FPS hide FPS share 1 remix fullscreen

taupelink

function u(t) {

j=t?j+!(frame%30):0;for(i=32;i--;)x.fillStyle=`hsl(${99*i%360},99%,${(i%8+2*(i>>3)+t%7|0)&j?5:50}%)`,x.fillRect(i%8*240,(i>>3)*270,235,266)

Jul 7 2019 1:50 AM UTC

}// 139/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Colored squares, just modular arithmetic

u/donbright

mona lisa was just paint

show FPS hide FPS share 1 remix fullscreen

taupelink

remix of d/14855 by u/taupelink

function u(t) {

c.width=500;p=37;a=(t|0)%(p-1)+1;for(n=0,m=a;++n<=p;m*=a,m%=p)x.fillStyle=R((n-1)%(p-1)?0:255,0,(n-p+1)?0:255),x.fillText(n,12+m*12,7+n*7)

Jul 6 2019 6:29 PM UTC

}// 138/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Powers of a=1, 2, 3, ..., 36 modulo 37, arranged in rows. The 36th power is always 1; the 37th is a.

u/taupelink

#math #numbertheory Fermat's little theorem https://en.wikipedia.org/wiki/Fermat's_l…
u/DataMeta

Cool!

show FPS hide FPS share fullscreen

taupelink

remix of d/14619 by u/taupelink

function u(t) {

for(i=w=2e3;i--;){X=(r=Math.random)()*w,Y=i*i/w/4
x.strokeStyle=`hsl(${X/40-60*C(t/3)+240},90%,${Y/8}%)`
x.strokeRect(X,w/2-2*Y,s=r()*99,4)}

Jul 6 2019 2:48 AM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

color oscillation thing

show FPS hide FPS share 2 remixes fullscreen

taupelink

function u(t) {

t||(a=[J=64]);c.width=160
for(i=64;i--;)t||(a[i]=i),x.fillText(a[i],i%8*20,9+(i>>3)*9)
J&&(K=Math.random()*(J--)|0,[a[K],a[J]]=[a[J],a[K]])

Jul 5 2019 3:29 AM UTC

}// 139/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Fisher-Yates shuffle aka Knuth shuffle. #math https://en.wikipedia.org/wiki/Fisher%E2%80%9…

u/taupelink

I'd be curious to see how much space can be saved by golfing on this one!
u/Xen

killed 8bytes for you
u/taupelink

#shuffle

show FPS hide FPS share 2 remixes fullscreen

KilledByAPixel

remix of d/10827 by u/ETHproductions

function u(t) {

eval(unescape(escape`睩瑨⡸⥦潲⡆㵮㴾晩汬却祬攽測晩汬剥捴⠰ⰰⰷ㈰ⰵ㠴ⱆ怣㌳㝠⤬景湴㴢㠰灸✢Ⱪ㴵〻椭ⴻ晩汬呥硴⠢屵㈶〵∬⡩⼹⨲簰⤪㘰⬳〬ㄮ㈪⡩⨹㤥㐴㔩⬷㔩⥦楬汒散琨⡩㰴⤪㜲〬椪ㄶ㜬㉥㌬㠳ⱆ怣䈲㍠⤬䙠⍦晦总`.replace(/u(..)/g,"$1%")))

Jul 4 2019 2:48 PM UTC

}// 139/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

More accurate and golfed USA flag, happy 4th!

u/donbright

really nice
u/katkip

#flag

show FPS hide FPS share fullscreen

katkip

function u(t) {

t||(z=p=1);for(i=9999;i--;){z%2?p+=1/z:p-=1/z;z++}
throw p*p

Jul 4 2019 11:28 AM UTC

}// 60/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

constant

show FPS hide FPS share fullscreen

KilledByAPixel

remix of d/14909 by u/Blacklink

function u(t) {

for(c.width|=i=8;i--;x.fillText(i%3?"🏠":"🌷",(t*1e3+400*i)%2400-400,400))
x.font="26em'"
x.fillText("🚚",900+S(t)*99,950)

Jul 3 2019 9:53 PM UTC

}// 119/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Golfed a bit and symbols changed to be more compatible.

show FPS hide FPS share fullscreen

username

remix of d/6939 by u/snydej

function u(t) {

with(x)for(i=3e2*(1+S(t))^0;i--;beginPath(fill()))for(j=6;j--;fillStyle=`hsl(${(t+i)*79},57%,50%`)lineTo(i%28*71+50*C(j),i%26*41+50*S(j)+26)

Jul 3 2019 6:13 PM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

#seamless + #waitforit

u/donbright

#tessellation
u/donbright

i waited...very cool
u/Xen

what exactly am i wai... ooooooo sexy!!

show FPS hide FPS share 1 remix fullscreen

Blacklink

function u(t) {

for(c.width|=i=0;i<8;i++){b=400
x.font=b+"px a"
l="🏠"
if(i%3==0)l="🌳"
x.fillText(l,(t*999+b*i)%2400-b,b)}x.fillText("🏍️",900+S(t)*99,700)

Jul 3 2019 5:37 PM UTC

}// 137/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

u/pavel

Nice
u/KilledByAPixel

looks awesome in firefox, terrible in chrome.
u/username

for me it looks the same in both browsers
u/katkip

Durarara
u/katkip

^ Celty

dwitter.net | donbright (40461)