Dweets awesomed by u/richev

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: #Opposites

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

show FPS hide FPS share 2 remixes fullscreen

nystrand

function u(t) {

for(i=c.width|=g=(o,a,b,z=a%b)=>n--?g(2*t/n+i%3,b*C(o)-a*S(o)-n,z,a*C(o)+b*S(o)):x.fillRect(a*(z+=40)+960,b*z+500,z-=24,z);i--;)g(i,n=6,i%7)

Jul 3 2019 12:40 PM UTC

}// 140/140

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

Show more comments…
u/Xen

love it!
u/katkip

hot
u/KilledByAPixel

👍
u/PorkToTheFuture

impossible
u/aleamb

great! superb! dude!
u/iverjo

#d3
u/vain

fucking kewl

show FPS hide FPS share fullscreen

katkip

function u(t) {

x.beginPath(x.fillStyle=R()),x.fill(x.arc(960,540,400,0,7));x.fillStyle='#fff';x.beginPath(),x.fill(x.arc(t*600%1920,540,400-S(t*2)*99,0,7))

Jul 3 2019 11:23 AM UTC

}// 140/140

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

Eclipses / Moon phases #space #moon #minimalist

u/Xen

nice

show FPS hide FPS share 7 remixes fullscreen

KilledByAPixel

function u(t) {

c.width|=c.style.background="#CDF";for(j=3e3;j--;x.arc(960,540,430+60*S(j/500+a*4)*(S(a-t)/2+.5)**9,a,a))a=j/159+t,x.lineWidth=29
x.stroke()

Jul 1 2019 2:56 PM UTC

}// 140/140

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

Circle Wave #beesandbombs 🐝 💣

u/KilledByAPixel

This one was fun because I found a way to combine the loops and hide the start/end gap that removes the need for a beginPath. Freeded up enough space for background color, or something cool in a remix.
u/aleamb

yeah!
u/pavel

Buggy in Safari. Jagged things sticking out, i think from the line end-caps, also breaks after a while because you didn't wrap-around the angle in arc.
u/pavel

Huh, actually both issues are resolved by modding the arc angle by 2*pi
u/KilledByAPixel

Explanation for how it works at http://frankforce.com/?p=6597

show FPS hide FPS share fullscreen

username

remix of d/14849 by u/username

function u(t) {

for(c.width|=i=17;i--;x.fillRect(325+i*76+C(t)*3e2,400+S(g=(i+1)*t)*99,43,2e2))x.fillStyle=`hsl(${2*S(g=(i+1)*t/2)*32},67%,50%`

Jul 1 2019 12:17 PM UTC

}// 127/140

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

improved #default pendulums?

show FPS hide FPS share fullscreen

pavel

remix of d/14846 by u/KilledByAPixel

function u(t) {

r=_=>Math.random();(frame-1)%600?0:d=r(m=r(c.width=960))
f=g=>260*((1-m)*g(a=8*t)+d*m*g(a-a/m))
x.lineTo(480+f(C),270+f(S));x.stroke()

Jul 1 2019 7:54 AM UTC

}// 134/140

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

#spirograph generator

u/pavel

I believe this generates all valid spirographs, at least the circle with a small pencil hole rolling in a circle ones.
u/pavel

The incremental drawing is not parameter aware so at the extremes its too slow / too fast and choppy
u/pavel

I was gonna improve this by using the period of a spirograph but gave up deriving it.
u/pavel

I think the period is the denominator of 1-1/m expressed as an irreducible fraction.

show FPS hide FPS share fullscreen

pavel

remix of d/14840 by u/pavel

function u(t) {

x.beginPath(x.lineWidth=FPS=p=Math.PI)
k=frame
k%2?n=99:(n=2+k/2,r/=C(p/n))
for(j=n+1;j--;)x.arc(960,540,t?r:r=60,a=2*p*j/n+11,a)
x.stroke()

Jun 30 2019 10:28 PM UTC

}// 140/140

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

u/katkip

Wow! Perfect geometry

show FPS hide FPS share 1 remix fullscreen

Xen

remix of d/14840 by u/pavel

function u(t) {

for(c.width=1e3,r=262,k=98;k--;)for(r*=k%2||C(d),n=j=t+k%6?8+k>>1:2;j--;x.arc(480+C(2*t+k),270,r,a=2*d*j+t/4,a))d=22/7/(n-1)
x.fill`evenodd`

Jun 30 2019 10:22 PM UTC

}// 140/140

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

shimmer v.s.

show FPS hide FPS share fullscreen

username

remix of d/14716 by u/username

function u(t) {

with(x)for(k=i=1080;i---99;beginPath(fill(arc((i**3+p)%2e3,(i*i+p)%k,k/(i/(6+S(t*4+i)*6)),0,7))))fillStyle=`hsla(${i+(p=t**3)},99%,60%,.03`

Jun 29 2019 6:59 PM UTC

}// 139/140

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

#waitforit

show FPS hide FPS share 2 remixes fullscreen

pavel

remix of d/14826 by u/KilledByAPixel

function u(t) {

for(w=j=c.width|=f=o=>500*C(q=22/7/(3+~~o*5%8))/C((a+t)%(2*q)-q);a=44/7*--j/w;x.arc(960,540,f(t+1)*e+f(t)*(1-e),a,a))e=(t%1)**9
x.fill()

Jun 29 2019 7:03 AM UTC

}// 136/140

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

u/13thptr

smooth
u/katkip

wooow
u/KilledByAPixel

I knew pavel would make it better. ;)
u/KilledByAPixel

https://imgur.com/MDGvSaU
u/donbright

amazing

dwitter.net | richev (19706)