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

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    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

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firegodjr

remix of d/8941 by u/firegodjr

function u(t) {

if(!t)c.width=400,v=0
F=n=>{for(i=n;i-->2;)n=n%i==0?0:n;return n>1}
v++
for(j=400;j--;)F(j^v)?x.fillRect(j,v,1,1):0

Jul 26 2018 9:21 PM UTC

}// 115/140

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This is your brain on bitcoins. #prime

u/DataMeta

Good stuff. I see the death star trench
u/fujimotos

#scanline
u/fujimotos

#slow_render

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firegodjr

function u(t) {

F=n=>{for(i=n;i-->2;)n=n%i==0?0:n;return n>1}
x.font="5em x"
x.fillStyle=R(F(X=t|0)?255:0) 
x.fillText(X,X%9*90+550,X*10+90)

Jul 26 2018 7:35 PM UTC

}// 124/140

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Little prime generator :P

u/Xen

wow! very nice
u/firegodjr

Thanks! :D #prime

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magna

function u(t) {

c.width|=0
x.beginPath()
x.arc(960,540,500,0,2*3.141592653589793238462643383279502884197169399375105820974944592307816406286208998)
x.fill()

Jul 28 2018 2:37 PM UTC

}// 140/140

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Most accurate dweet in the world

u/sirbo

It looks, hmmm, roundy

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Agnes

remix of d/8938 by u/Xen

function u(t) {

with(x)for(filter='invert(5%)',drawImage(c,-5,-5,1930,1090),i=9;i--;)for(j=4;j--;)fillRect(400+i*99+S(t)*300-T(j*t),400+j*50+T(t*i),50,50);

Jul 27 2018 10:34 AM UTC

}// 139/140

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Glitching through the fog (feat. terrible performance)

u/Agnes

This apparently doesn't work on some browsers.

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magna

remix of d/8947 by u/magna

function u(t) {

x.fillRect(x.globalAlpha=.03,0,2e3,2e3)
for(i=999+C(t)*990|0;i--;x.clearRect(960+C(i)*r,540+S(i)*r,3,3))r=500*Math.random()*S(t*9)**5

Jul 28 2018 12:16 AM UTC

}// 133/140

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MrM@_S

function u(t) {

C=S[(C.y<(c.width=99))+T]||(onkeyup=e=>S[R++]={x:new Date%4-~S[T+=e.key==C.x]--,y:0})(S=[R=T=0]);S.map(f=>x.fillText(f.x||T,f.x<<4,7|f.y++))

Jul 26 2018 6:45 PM UTC

}// 140/140

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[Falling Numbers 1.5] ADDITIONS: better movement, some suggestions from u/lionleaf, title screen (press any key to get past the title screen), and no more falling score.

Show more comments…
u/MrM@_S

[previous versions]:[https://www.dwitter.net/d/8835],[…]
u/MrM@_S

https://www.dwitter.net/d/8835
u/MrM@_S

https://www.dwitter.net/d/8843
u/MrM@_S

#game #DDR #
u/lionleaf

Awesome! Now it's a pretty playable and very fun :D #interactive
u/firegodjr

made it to 43 :D
u/MrM@_S

nice
u/username

woah the exponential speedup is brutal
u/username

116
u/username

I guess it is just buggy haha
u/username

I will call it a feature
u/username

and a feature request to be able to remove comments
u/username

I mean, hey it is a feature
u/username

punishment for playing badly

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katkip

function u(t) {

for(w=540,i=W=4*w;i;x.beginPath(),x.arc(w*(T(i)+s*t/s)%W,i?w-w*S(r=w*s):w,i?s*9:W,0,6),x.fillStyle=R(s,s,r%i,i?1:.01),x.fill())s=w/(i--*3+w)

Jul 28 2018 6:31 PM UTC

}// 140/140

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geb

function u(t) {

for(k=0;k<999;k++){a=h=t/8-2;b=i=k/480-9/8
for(n=0;a*a+b*b<4&&n<64;n++)q=a,a=a*a-b*b+h,b=2*q*b+i
x.fillStyle=R(2**n);x.fillRect(t*64,k,k,2)}

Jul 24 2018 11:58 AM UTC

}// 140/140

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u/DataMeta

Niiiiice! #fractal
u/zanella

#mandelbrot
u/zanella

#mandelbrot
u/Xen

Very Nice Style
u/aleamb

#fractal
u/joeytwiddle

Nice #mandelbrot #fractal
u/katkip

Noyce.

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magna

remix of d/8946 by u/Xen

function u(t) {

for(i=99;i--;x.arc(1e3+C(3*t+i/8)*39,500+S(5*t+i/7+C(t))*39,i*12,i,t*i))x.beginPath(x.stroke()),x.strokeStyle=`hsla(${3*i+9*t},99%,50%,.3`

Jul 28 2018 2:34 PM UTC

}// 138/140

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firegodjr

remix of d/8940 by u/firegodjr

function u(t) {

F=n=>{for(i=n;i-->2;)n=n%i==0?0:n;return n>1}
for(Y=100;Y--;)for(X=100;X--;)F(X&Y)?x.fillRect(460+X*10,Y*10,10,10):0

Jul 26 2018 8:54 PM UTC

}// 116/140

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Prime Shenanigans