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

Xen

function u(t) {

for(i=299;i--;x.stroke())x.beginPath(),x.strokeStyle=`hsl(${Z=i*t*4%555/C(t)},99%,9%)`,x.arc(Z*S(Z/i)+c.width/2,Z*C(Z/i)+c.height/2,i*5,0,7)

Feb 13 2018 8:36 PM UTC

}// 140/140

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

quick test for a secret project ;-)

u/aleamb

nice secret!
u/Xen

thanks, it wont look anything like this lol

show FPS hide FPS share 1 remix fullscreen

davidsharp

remix of d/6865 by u/davidsharp

function u(t) {

w=255
with(x)stroke(),beginPath(),lineWidth=9,strokeStyle=R(S(t)*w,S(t+1)*w,S(t+2)*w)
for(i=0;i<100;)x.lineTo(++i*19.2,500+S(i/8)*w*S(t+i))

Feb 12 2018 11:30 PM UTC

}// 139/140

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

akm

remix of d/6648 by u/BirdsTweetCodersDweet

function u(t) {

c.width|=0;for(i=720;i--;)x.fillRect(960+600*C(10*t+i),700+400*S(i+5)/(Math.E**t),10,10);

Feb 13 2018 12:32 AM UTC

}// 89/140

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

used Math.E**t as approximation for gravity

u/joeytwiddle

I think it should get faster as it falls lower

show FPS hide FPS share fullscreen

AnnanFay

remix of d/6897 by u/New_Core

function u(t) {

c.width=w=320
f=148;[[-87,w,1703],[465+t*60%8*f,w,f,0,32,w,f],[t**7,w,1210]].map(a=>x.drawImage(I,0,...a))};{I=new Image()
I.src='//具.pw'

Feb 13 2018 8:18 PM UTC

}// 137/140

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

!h6q: please link http://www.wab.com/screens/403/pha_enigma_gf…

u/AnnanFay

Thought I would try putting 'phenomena' at the top, ended up making the logo page and transition.

show FPS hide FPS share fullscreen

snydej

function u(t) {

x.fillStyle=`hsla(${t*100},50%,50%,.3)`
p=0
for(i=0;i++<384;)p=S[i]=p+t*i**6%29
for(X=1920;X-=5;)x.fillRect(X,80*t%1080+S[i--]-p*i/384,5,50)

Feb 12 2018 6:17 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/Xen

smooth

show FPS hide FPS share 1 remix fullscreen

dogspace

remix of d/6861 by u/sj_

function u(t) {

x.shadowBlur=99;
x.shadowColor=`hsl(${t*60},100%,50%)`
x.fillRect(
 c.width/2 + C(t) * 500-(t*4),
 c.height/2 + S(t) * 500-(t*4),
20,20);

Feb 13 2018 4:10 AM UTC

}// 137/140

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

u/joeytwiddle

Painting with shadows :-o

show FPS hide FPS share fullscreen

bokoskokos

function u(t) {

c.width|=0;if(!t)a=b=d=e=5;x.font='2cm Arial',a+=d,b+=e;x.fillText('🏀',a,b);if(a<0|a>1820)d=-d;if(b<0|b>1000)e=-e

Feb 13 2018 3:37 PM UTC

}// 113/140

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

Yogeshp3

remix of d/6883 by u/dogspace

function u(t) {

x.shadowBlur=99;
x.shadowColor=`hsl(${t*250},50%,50%)`
w=Math.max((450-9*t),0)
x.fillRect(c.width/2+C(2*t)*w,c.height/2+S(2*t)*w,15,15);

Feb 13 2018 6:21 AM UTC

}// 136/140

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 fullscreen

DirtyDan

remix of d/6780 by u/DirtyDan

function u(t) {

c.width+=0;x.globalCompositeOperation='xor';for(i=16;i>0;i--)x.beginPath(),x.arc(960,540,(1+S(t*i/10))*i*90,0,44/7),x.fill()

Feb 13 2018 6:18 AM UTC

}// 124/140

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

davidsharp

function u(t) {

c.width|=0;x.font='3cm A';'こんにちは～'.split('').forEach((c,i)=>x.fillText(c,500+i*100+S(t+50)*100,1080-(Math.abs(t*100*S(50)+S(i+t)*20)%1080)))

Feb 14 2018 12:54 PM UTC

}// 140/140

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