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 fullscreen

yonatan

remix of d/7241 by u/yonatan

function u(t) {

for(i=j=c.width=99;i--;)for(X=i-50,Y=40;Y++<j;)h=S(t)+S(X/Y*9)*S(X/9+Y/5-t*9)**3,x.fillStyle=R(j+h*j,Y*h,i*h),x.fillRect(i,(Y-h*22)*Y/j,1,j)

Aug 4 2018 7:42 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 FPS hide FPS share 1 remix fullscreen

Xen

remix of d/9146 by u/katkip

function u(t) {

x.fillRect(0,0,Z=2e3,Z)
for(i=Z;i--;x.fillRect(i,Z*C(S(2*t|0)*i+t),99,i/9))x.fillStyle=`hsla(${199*t+i/4},99%,50%,.2)`

Aug 6 2018 7:27 PM UTC

}// 118/140

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

u/magna

#keepsongiving
u/d0n.key

This created some kind of music in my mind o.O.o
u/katkip

Images you can hear

show FPS hide FPS share fullscreen

richev

function u(t) {

x.lineCap='round'
x.lineWidth=20*t
x.beginPath()
c=6.28*t-1.5
x.strokeStyle=`hsl(${t*72},99%,60%)`
x.arc(960,540,270,c,c+.2)
x.stroke()

Aug 5 2018 6:54 AM UTC

}// 135/140

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

Expanding rainbow loop

u/lionleaf

Very satisfying to watch #rainbow #donut

show FPS hide FPS share 1 remix fullscreen

d0n.key

function u(t) {

if(typeof v=="undefined"){v=1;i=0}
v+=(i%2==0?-1:1)*(1/(3+2*i))
i++
if(i%2==0){
c.width*=1
x.font="99px'"
x.fillText(v*4,0,100)
}

Aug 7 2018 11:56 AM UTC

}// 129/140

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

A rather dirty way of calculating PI...

show FPS hide FPS share 1 remix fullscreen

Xen

remix of d/9172 by u/katkip

function u(t) {

x.drawImage(c,9*C(t),9*S(t))
for(Z=i=2e3;i--;x.fillRect(i,580+600*C(i*t),T(i-t),S(i-t)*99))x.fillStyle=`hsla(${t*Z+i},90%,50%,.1)`

Aug 8 2018 8:05 PM UTC

}// 130/140

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

Xen

remix of d/9140 by u/katkip

function u(t) {

for(c.width|=Z=i=t*99%2e3|0;i--;x.fillRect(Z+i*S(i*t),500+i*C(i*t),99*C(t),99*S(t)))x.fillStyle=`hsla(${Z*t^i},99%,50%,.1)`

Aug 6 2018 3:33 PM UTC

}// 123/140

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

#remix_chain

u/joeytwiddle

Hyper #spiral

show FPS hide FPS share fullscreen

firegodjr

remix of d/9065 by u/firegodjr

function u(t) {

for(j=100;j--;)for(y=100;y--;)x.fillStyle=R(b=(Math.hypot(j+50*S(t),y+50*C(t))/50*(t*99+(j+y^y-j)))%99*2,b,b),x.fillRect(j*9,y*9,9,9)

Aug 5 2018 5:25 AM UTC

}// 133/140

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

u/katkip

Finnaly it doesn't lag.
u/magna

Sweet!
u/fujimotos

#hypot This is the first dweet I ever see that utilizes Math.hypot()
u/aleamb

nice!

show FPS hide FPS share fullscreen

d0n.key

remix of d/9150 by u/d0n.key

function u(t) {

accuracy=100000
v=1
for(i=0;i<accuracy;i++) v+=(i%2==0?-1:1)* (1/(3+2*i))
throw v*4

Aug 7 2018 12:03 PM UTC

}// 83/140

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

A little less dirty implementation of the same thing

u/d0n.key

(increase the [accuracy] to fuck your browser and get somewhat accurate results)
u/katkip

Wow

show FPS hide FPS share fullscreen

katkip

remix of d/3381 by u/sniok

function u(t) {

c.width=570;l=20;f=30;for(j=l;j--;)for(i=f;i--;x.fillStyle=R(i*l,j*l,C(t)*255),x.fillRect(S(t/2+5*j)*2+i*l-l,j*l+T(t/2+5+l/i)*l-40,f,f)){}//

Aug 5 2018 11:37 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

Xen

remix of d/9147 by u/Xen

function u(t) {

for(x.fillRect(0,0,Z=2e3,i=Z);i--;x.fillRect(i,Z*C(i-t*i),79,i/13))x.fillStyle=R(t*i%i,t*i%Z,i*C(Z*t/i),.01)

Aug 6 2018 7:58 PM UTC

}// 108/140

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

Event Horizon.

u/joeytwiddle

#horrible
u/Xen

#1337 :-P