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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joeytwiddle

function u(t) {

c.width|=0;x.lineWidth=d=45;for(i=30;i--;r%4&&x.stroke())r=(2+i%10),s=i+4*S(t+i),l=(4+i*3)%6,x.beginPath(),x.arc(940,540,r*d*.9,s,s+l)

Apr 12 2017 7:16 PM UTC

}// 134/140

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http://revision-party.net is this weekend!

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u/reportbase

Thumbs Up. This is cleaver.
u/donbright

!!!!!!
u/sigveseb

Who's going?
u/joeytwiddle

Unfortunately I am too far from the party. BTW this dweet runs too quickly. I should have used t/3
u/iverjo

I'm going to revision :D
u/joeytwiddle

Lock some of the blocks, so not everything is moving at once: s=i+2*C(t/4+i)**32
u/joeytwiddle

Have a great time iverjo and anyone else attending!
u/iverjo

#revision

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Woodmouth

remix of d/2471 by u/Woodmouth

function u(t) {

t?x.fillRect(a=(1920+a+9*S(d))%1920,b=(1080+b+9*C(d))%1080,9,9):(b=a=99,d=0),d+=Math.random()-.5
x.fillStyle=`hsl(${t*99},99%,50%`

Apr 12 2017 9:27 AM UTC

}// 130/140

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Thanks to everyone, and perhaps especially donbright, we have enough space for colors! (I just copied the fillStyle from cantelope's #2451 )

u/Woodmouth

t?x.fillRect(a+=9*S(d),b+=9*C(d),9,9):(b=a=99,d=0);d+=Math.random()-.5;d=b>1080?3:(b<0?0:(a>1920?5:(a<0?2:d)));x.fillStyle=hsl(${t*99},99%,50%
u/Woodmouth

4 characters away from colors and boarder btw
u/donbright

@joeytwiddle was correct, you can take the parenthesis out of my ? statements which should leave enough room

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donbright

remix of d/2025 by u/@literallylara

function u(t) {

c.width^=0
onmousemove=e=>T=e.pageX/42
R=_=>S(s)+(S(s++)>0?0:2)-1
for(s=i=H=540;i--;)x.lineTo(1e3+(R()*C(T)-R()*S(T))*H,H+R()*H)
x.stroke()

Apr 10 2017 11:40 PM UTC

}// 139/140

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homage to @literallylara 's 2025 with mouse.. (please try moving your mouse over screen)

u/donbright

thanks 2 @cantelope / @manga for T trick, @Jenky for mouse inspiration
u/joeytwiddle

I like the interactivity, and Firefox support. And one of the tricks is really going to save me some characters!
u/gabrielsroka

#interactive

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z3vin

function u(t) {

z=Math.random;for(i=0;i<999;i++)x.rotate(t),x.beginPath(),x.arc(i*i,i*S(t)*49,1199,2.4,3),x.stroke(),x.clearRect(599-C(t)*599,0,z()*999,z())

Apr 10 2017 4:44 AM UTC

}// 140/140

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u/donbright

i wish this was like on a 2 meter screen at an art gallery
u/z3vin

Thanks man!

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donbright

remix of d/2455 by u/cantelope

function u(t) {

onmousemove=e=>N=e.pageY/9
for(c.width=i=2e3;i--;)x.fillRect(1e3+S(p=i+t)/(Z=4+C(p)*(h=1+S(i/99-t*4)/N))*1e3*h,540+1/Z*(i-999)*3.3,s=40/Z,s)

Apr 9 2017 11:02 PM UTC

}// 140/140

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mouse movement tunes the pipe

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u/donbright

(i.e. move your mouse over the image)
u/donbright

inspiration @cantelope + @Jenky https://www.dwitter.net/d/2437 + @joeytwiddle https://www.dwitter.net/d/2446
u/cantelope

Fixed "N is not defined" error by using T *which is predefined).. onmousemove=e=>T=e.pageY/9;for(c.width=i=2e3;i--;)x.fillRect(1e3+S(p=i+t)/(Z=4+C(p)*(h=1+S(i/99-t*4)/T))*1e3*h,540+1/Z*(i-999)*3.3,s=40/Z,s)
u/donbright

@cantelope that is clever!
u/cantelope

@donbright i learned it from magna :)
u/donbright

thanks @cantelope i used this in d/2025
u/iverjo

#interactive

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cantelope

remix of d/2452 by u/cantelope

function u(t) {

w=(c.width|=0)/2
x.fillStyle="#64f"
for(i=2e3;i--;x.fillRect(w+S(p=i+t)/(Z=4+C(p)*(h=1+S(i/99-t*4)/2))*w*h,540+1/Z*(i-999)*w/300,s=40/Z,s));

Apr 9 2017 6:17 AM UTC

}// 140/140

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u/magna

<3
u/donbright

loved it, remix w mouse control https://www.dwitter.net/d/2460

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magna

remix of d/2451 by u/cantelope

function u(t) {

x.fillRect(0,0,(w=960)*2,w*2)
for(i=99;i--;p=i/5+t,x.clearRect(w+1/(Z=3+C(p))*(i-50)*w/20,540+S(p)/Z*w,s=199/Z/Z,s))x.globalAlpha=.1

Apr 9 2017 6:01 AM UTC

}// 132/140

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u/cantelope

nice! :)

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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!

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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…

dwitter.net | lionleaf (43234)