Hot dweets by u/iverjo

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 3 remixes fullscreen

iverjo

remix of d/79 by u/iverjo

function u(t) {

c.width=960;for(i=2e3;i--;)s=7/(S(i/42)*S(2.79*i+t-1.57)+2),x.fillRect(480+460*S(i/42)*S(2.79*i+t),270+160*(C(i/42)+T(t/9+i/42)),s,s)

Jul 29 2016 12:55 AM UTC

}// 133/140

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

Golfed version (120 characters): c.width=960;for(i=2e3;i--;)b=2.79*i+t,x.fillRect(480+460*S(a=i/42)*S(b),270+160*(C(a)+T(t/9+a)),s=7/(S(a)*S(b+4.7)+2),s)

u/iverjo

118 characters: c.width=960;for(i=2e3;i--;)x.fillRect(480+460*S(d=i/42)*S(b=2.79*i+t),270+160*(C(d)+T(t/9+d)),s=7/(S(d)*S(b+4.7)+2),s)
u/iverjo

115 characters: c.width=960;for(i=2e3;i--;)x.fillRect(480+460*S(d=i/42)*S(b=2.79*i+t),270+160*(C(d)+T(t/9+d)),s=7/(-S(d)*C(b)+2),s)
u/iverjo

114 characters: c.width=960;for(i=2e3;i--;)x.fillRect(480+460*S(d=i/42)*S(b=2.79*i+t),270+160*(C(d)+T(t/9+d)),s=7/(S(d)*C(b)+2),s)

show FPS hide FPS share fullscreen

iverjo

function u(t) {

for(i=2e3;i--;)x.fillStyle=R(a=255*!i,a,a,i/3e5),x.fillRect(!a*(956+968*S(i+t)),!a*(535+540*C(i/42)),c=9+8*a,c)

Jul 29 2016 4:19 PM UTC

}// 111/140

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

Let's call this one "60s CRT TV". Wait around 20 seconds to let the effect converge.

u/iverjo

Featuring vignette and scanlines/pixelated grid
u/iverjo

#texture
u/iverjo

#waitforit

show FPS hide FPS share fullscreen

iverjo

remix of d/379 by u/iverjo

function u(t) {

c.width=960;for(i=1e3;i--;)b=T(t+i/42),s=7/(S(i/42)*S(t)+2),x.fillRect(480+400*S(i/42)*S(i%b+t),270+230*(C(i/42)),s,s)

Jul 29 2016 4:59 PM UTC

}// 118/140

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

iverjo

remix of d/279 by u/iverjo

function u(t) {

c.width=500;x.translate(250,95);M=1.5*S(t*2);for(j=66;j--;)x.translate(9,0),x.rotate(M*.1+(1-M)*((j+8)%21?0:2.1)),x.lineTo(0,0),x.fill()

Jul 27 2016 2:30 PM 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

iverjo

function u(t) {

for(i=4e3;i--;)c=155+99*S(t+4*S(i*9)),x.fillStyle=R(99+c,c),s=(t+i/100)%9+.3,x.fillRect(640+250*s*C(i),1080+250*s*S(i),s*9,s*9)

Jul 24 2016 11:34 PM UTC

}// 127/140

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

Sunset

u/iverjo

#sun

show FPS hide FPS share fullscreen

iverjo

function u(t) {

x.fillRect(i=0,87,W=c.width=310,3);x.font='49px A';for(a of'🚂🚃🚃🚃🚃🚃🚃')x.fillText(a,q=W-t%4*W+i++*46,90+S(q/15))

Jul 24 2016 2:14 AM UTC

}// 110/140

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

It turns out that this looks different with the Windows 10 Anniversary update

u/iverjo

#train

show FPS hide FPS share fullscreen

iverjo

function u(t) {

for(i=8e3;i--;)s=149/(i+400),c=S(8e3*s+t*7),x.fillStyle=R(9,c=99*c,99+c),x.fillRect(2e3*(T(i/9)+s*t)%2e3,1440-133*Math.log(i),s=99*s,s)

Jul 24 2016 11:40 PM UTC

}// 135/140

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

This was my first attempt at creating a water dweet. I lated discovered that Math.log wasn't the best way to model perspective

u/iverjo

*later
u/iverjo

#water

show FPS hide FPS share 2 remixes fullscreen

iverjo

function u(t) {

i=W=c.width=960;X=250*t%W;G=(1-S(X/29))*.3;x.lineWidth=80;x.arc(X,200,40,G,6.29-G);x.stroke();while(i>X)x.fillRect(i,190,20,20),i-=190

Jul 22 2016 12:34 AM UTC

}// 134/140

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

Pacman, inspired by tamberlo

Show more comments…
u/tamberlo

thank you for cleaning up my idea ;) your solution is very neat
u/iverjo

Thanks :) It lacks the yellow color, though. I'm not sure I could hack that in without removing the rectangles
u/iverjo

Golfed a bit (128 characters): i=W=c.width=960;x.lineWidth=80;x.arc(X=250*t%W,200,40,G=.3-.3*S(X/29),6.29-G);x.stroke();for(;i>X;i-=190)x.fillRect(i,190,20,20)
u/donbright

lol
u/iverjo

#pacman
u/rodrigo.siqueira

#atari

show FPS hide FPS share 1 remix fullscreen

iverjo

function u(t) {

c.width=1920;for(i=6e3;i--;)s=1/(2100-(i+t*99)%2081),q=9e4*s*s,x.fillRect(960+2e5*s*C(i*173)-q/2,540+2e5*s*C(i*2e5)-q/2,q,q)

Jul 24 2016 2:42 PM UTC

}// 124/140

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

A remake of the "Starfield" screensaver that was included in Windows 98

u/iverjo

If you watch this in fullscreen and stare at the center, your brain might be fooled into believing that you are moving
u/iverjo

#starfield #stars

show FPS hide FPS share 1 remix fullscreen

iverjo

function u(t) {

c.width=960;for(i=20;i--;)for(j=12;j--;)x.beginPath(),x.arc(50*i-9*S(A=4*t+i*C(t/8)*.6+j*S(t/8)*.4),50*j+9*C(A),19+C(A)/.4,0,7),x.fill()

Jul 22 2016 1:34 PM UTC

}// 136/140

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

Inspired by http://dweet.dwitter.net/id/322?autoplay=1

u/iverjo

#dots

dwitter.net | iverjo (1374)