Dwitter - javascript demos in 140 characters

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 1 remix fullscreen

firegodjr

function u(t) {

c.width=1920
π=Math.PI
for(i=0;i<9;i++)
x.arc(f=960,540,50*i,S(t)*π,S(i/2+t)*π);x.stroke()

Jun 3 2018 6:16 PM UTC

}// 90/140

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

Spinners

u/BirdsTweetCodersDweet

#geometric

show FPS hide FPS share 1 remix fullscreen

Xen

remix of d/8364 by u/BirdsTweetCodersDweet

function u(t) {

for(c.width|=i=2e3;i--;)x.fillRect(S(t*15+i/15)*i+960,C(t*15+i/15)*i+540,W=i/21+C(t*2)*29,W)

Jun 3 2018 5:13 PM UTC

}// 92/140

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

show FPS hide FPS share 2 remixes fullscreen

andc2600

remix of d/8380 by u/andc2600

function u(t) {

c.width=1920
x.fillRect(0,0,1920,360)
x.fillStyle=R(208,0,0)
x.fillRect(0,360,1920,360)
x.fillStyle=R(255,206,0)
x.fillRect(0,720,1920,360)

Jun 4 2018 2:16 AM UTC

}// 139/140

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

u/veubeke

FTFY :D https://www.dwitter.net/d/8383

show FPS hide FPS share 3 remixes fullscreen

BirdsTweetCodersDweet

remix of d/8355 by u/BirdsTweetCodersDweet

function u(t) {

for(c.width|=i=1e3;i--;)x.fillRect(S(t*10+i/50)*i+960,C(t*10+i/50)*i+540,W=i/9+2,W)

Jun 3 2018 4:42 PM UTC

}// 83/140

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

Hypnotic

u/BirdsTweetCodersDweet

Make it t*20 for a better effect - I lowered it to be kind to people scrolling
u/DataMeta

t*10 --> t*12 in the x pos gives it a nice slow spin on the depth axis, but it looses the 'clean' feel of the 2d spinner. Nice dweet!

show FPS hide FPS share 1 remix fullscreen

E-Mouse

remix of d/8390 by u/E-Mouse

function u(t) {

for(c.width|=i=2e3;i--;)x.fillRect(S(t*3+i/15)*i+960,C(t*2+i/15)*i+540,W=i/25,W)

Jun 4 2018 1:37 PM UTC

}// 80/140

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

Which way is it spinning? #illusion

u/katkip

Both

show FPS hide FPS share fullscreen

BirdsTweetCodersDweet

function u(t) {

c.width|=i=1e3
for(;i--;x.fillStyle=`hsl(${i%360},50%,${i/20+50}%)`)x.fillRect(i*2,S(t+i*1.5)*100+500,9,9)

Jun 3 2018 11:16 AM UTC

}// 106/140

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

Twisting off into the abyss...

show FPS hide FPS share 1 remix fullscreen

sawaxon

remix of d/8227 by u/sawaxon

function u(t) {

c.width|=0;for(j=0;j<99;j++)for(i=0;i<8;i++){x.fillStyle=`hsl(${i*40},99%,50%)`
x.fillRect(j*9,400+i*50+S(j/40+t*3)*99,900,50);x.rotate(1)}

May 31 2018 12:10 AM UTC

}// 140/140

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

show FPS hide FPS share 1 remix fullscreen

joeytwiddle

function u(t) {

for(c.width|=k=511;k--;x.fillRect(960-W-500*S(j/41)*C(a),960-j*(i+S(a)),2*W,9))i=k>>5,j=k%32,x.fillStyle='#f7f'+j/5,W=99*S(j/10)*S(a=t+i*17)

May 29 2018 10:12 AM UTC

}// 140/140

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

Happy Vesak! https://en.wikipedia.org/wiki/Vesak

u/joeytwiddle

Here is the colourful 3d version: https://codegolf.tk/a/270
u/fujimotos

Lotus!
u/hollo47

This is absolutely beautiful!
u/lionleaf

Amazing! #vesak #flower
u/aleamb

great!!

show FPS hide FPS share 1 remix fullscreen

DataMeta

function u(t) {

p=Math.PI;j=(t*1920)/p;r=Math.random();m=Math.random();x.fillStyle=R(T(t)*192,96/m,96/r,.9);x.fillRect(-j%1920+1680,j%1080-8,250,64)

Jun 2 2018 4:56 AM UTC

}// 132/140

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

Show more comments…
u/uchenna

i have been trying to implement this on my project please help me, thanks
u/DataMeta

You're more than welcome to mess around with this code. What exactly do you want help with?
u/sukkamehu

a bit golfed version.. p=3.14;j=(t*1920)/p;z=Math.random;r=z();m=z();x.fillStyle=R(T(t)*192,96/m,96/r,.9);x.fillRect(-j%1920+1680,j%1080-8,250,64)
u/DataMeta

Thanks! I was meaning to check how to declare functions in javascript... Although I find that at least 3.146 is needed to closely replicate pi, so ill usually take the 3 extra chars
u/sukkamehu

ok nice dweet though
u/DataMeta

appreciate it
u/DataMeta

I wonder is there's a tag for fps graph glitch-outs.
u/DataMeta

#fpsgraphglitch (yes this is silly)
u/DataMeta

#glitch

show FPS hide FPS share fullscreen

DataMeta

remix of d/8327 by u/DataMeta

function u(t) {

for(i=128;i>0;i--){r=Math.random();m=Math.random();x.fillStyle=R(i/m-96,i/m+64,i/r,.4);x.fillRect(i*16,620+T(i+t/m)*64*S(t),T(t),T(i)*208)}

Jun 1 2018 12:18 AM UTC

}// 139/140

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

#glitch