Dweets awesomed by u/lionleaf

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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magna

function u(t) {

with(x)
font='80px arial',
textAlign='center',
fillText('Dweet Wishlist',X=960,400),
fillText('Enter your dweet wishes as comments.',X,X)

Apr 8 2017 10:04 PM UTC

}// 137/140

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Dweet Wishlist - enter your idea/wishes and inspire others to create those dweets!

Show more comments…
u/magna

Subpixel rendering
u/magna

https://en.wikipedia.org/wiki/Random_dot_ste…
u/magna

Quarter-circle Truchet tiles: https://en.wikipedia.org/wiki/Truchet_tiles#…
u/magna

https://en.wikipedia.org/wiki/Penrose_tiling
u/cantelope

pretty sure it's not possible in 140 bytes, but anything resembling a voronoi diagram would be peachy.
u/magna

@cantelope: There's one already: https://www.dwitter.net/d/1900
u/donbright

three body gravity system, general relativity simulation, icosahedron, geodesic dome, tesseract rotation in 4 dimensions, fractal generation of human face....
u/cantelope

@magna, I see. It is amazing!
u/joeytwiddle

Make @magna's piano keys playable: https://www.dwitter.net/d/2418 (I tried in /2453)
u/donbright

rotation using imaginary numbers instead of sin/cos, 3d rotation with quaternions, mouse driven particle system, electromagnetism simulation, delaunay triangulation
u/joeytwiddle

More games and puzzles. This road is a starting point: https://www.dwitter.net/d/2201

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joeytwiddle

remix of d/1763 by u/New_Core

function u(t) {

c.onclick=_=>window.a||(a=new AudioContext,o=a.createOscillator(),o.connect(a.destination),o.start(),c.onmousemove=e=>o.frequency.value=e.x)

Apr 8 2017 8:22 PM UTC

}// 140/140

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Starts making noise if you click on the canvas. Hopefully you can silence it by going left, but no guarantees!

u/cantelope

"woooOOOOoooOOOO" :D
u/magna

It's a dweetheremin!
u/joeytwiddle

Yes it is :) More fun with a wider frequency range: o.start());c.onmousemove=e=>o.frequency.value=5*e.x
u/lionleaf

Haha, amazing! Fullscreen gives you a wider audio range :)
u/joeytwiddle

#audio #interactive

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mxfh

function u(t) {

c.width|=b=50
h=b-S(t)*b*5
for(e=6.283;e>0;x.lineTo(d*C(e-=.01)+h*C(s=d/b*e)+960,(d)*S(e)-h*S(s)+540))d=300-b
x.fill("evenodd")

Apr 7 2017 10:55 PM UTC

}// 127/140

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http://mathworld.wolfram.com/Hypotrochoid.ht…

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nystrand

function u(t) {

for(O=c.width|=Z=A=27;A--;O=.9+C(t)/Z)x.fillStyle=R(x.scale(A?O:1,A?O>1?Z:1.03:-O),Z,4*A,.2),x.fillText(u,A<2?M=7-t*4:-66,A<2?A*Z-18-S(M):Z)

Apr 7 2017 8:41 PM UTC

}// 140/140

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u/magna

I was expecting this to happen one day...
u/magna

Wait. How the hell are you rendering the "ground"? I don't get it. Explanation please.
u/nystrand

It's the "(O" chars at the beginning of the code decreasingly scaled down from the large initial scale. I had to find a variable name that "looked good", - went with O which made coding confusing as it looks like a zero :)
u/magna

This is nuts!
u/joeytwiddle

#quine

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marc8

function u(t) {

c.width|=i=0
for(b=(m=80)+(f=m+(l=5*m));i<7;i++)"}P7WZOoQ_".charCodeAt(t%10)&2**i&&x.fillRect(i<3?m:i%2?0:f,i>4?b:i>2?m:i*f,r=i<3?l:m,f-r)

Apr 7 2017 1:23 PM UTC

}// 139/140

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u/magna

Awesome!

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shapes

remix of d/2423 by u/shapes

function u(t) {

r=480;c.width=r*4;λ=0;for(φ=a=1.6;φ>-a;φ-=1/r){λ+=a;x.lineTo(C(φ)*S(λ-t)*r+2*r,(C(t=t+φ/r)*S(φ)+S(t)*C(t)*C(λ-t))*r+r)}x.stroke()

Apr 6 2017 1:37 PM UTC

}// 129/140

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shapes

remix of d/2424 by u/shapes

function u(t) {

r=480;c.width=r*4;λ=0;for(φ=a=2.5;φ>-a;φ-=1/r){λ+=a/9;x.lineTo(C(t)*S(λ-t)*r+2*r,(C(t=t+φ/r)*S(t)+S(r)*C(φ)*C(λ-t))*r+r)}x.stroke()

Apr 6 2017 1:24 PM UTC

}// 131/140

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u/sfz

really cool
u/shapes

Thanks, most credit goes to mxfh though, I'm just fuckin' around with his code to find cool shapes :)

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magna

remix of d/2425 by u/cantelope

function u(t) {

t||(w=c.width=568)
with(x)onmousemove=e=>lineTo(C=e.pageX,S=e.pageY),fillStyle=R(S,C,S,.2),fillRect(0,0,w,w),beginPath(stroke()),moveTo(C,S)

Apr 6 2017 5:04 AM UTC

}// 140/140

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Fixed the "X/Y is not defined" errors by hijacking S and C

u/brahimtim

hhjgj
u/cantelope

@magna, brilliant! :D
u/cantelope

as promised, 3 gold stars... https://www.dwitter.net/d/2434
u/magna

Thanks! :)
u/iverjo

#interactive

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shapes

remix of d/2423 by u/shapes

function u(t) {

r=480;c.width=r*4;λ=0;for(φ=a=Math.PI/1.3;φ>-a;φ-=1/r){λ+=a/9;x.lineTo(C(φ)*S(λ-t)*r+2*r,(C(t=t+φ/r)*S(t)+S(r)*C(φ)*C(λ-t))*r+r)}x.stroke()

Apr 6 2017 2:08 AM UTC

}// 139/140

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u/cantelope

amazing!
u/shapes

Thanks, most credit goes to mxfh though, I'm just fuckin' around with his code to find cool shapes :)

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shapes

remix of d/855 by u/mxfh

function u(t) {

r=480;c.width=r*4;λ=0;for(φ=a=Math.PI/1.99;φ>-a;φ-=1/r){λ+=a;x.lineTo(C(φ)*S(λ-t)*r+2*r,(C(t=t+φ/r)*S(φ)+S(t)*C(φ)*C(λ-t))*r+r)}x.stroke()

Apr 6 2017 1:54 AM UTC

}// 138/140

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dwitter.net | lionleaf (43039)