Dweets awesomed by u/davidsharp

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: #Opposites

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tomxor

function u(t) {

x.fillRect(0,0,i=2e3,i)
for(t+=160;p=i&1,m=t/C(t/i)+p*(t/2+i%t),i--;)x.clearRect(
960+m*S(n=t/9+i*i)*C(!p*i/t),
540+m*C(n+p*2),s=3-C(n)*3,s)

Oct 17 2018 8:45 PM UTC

}// 140/140

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#space #planet #saturn

Show more comments…
u/joeytwiddle

Wow, beautiful! I am blown away. #dots #lighting #shading
u/lionleaf

Wow! That's amazing
u/magna

WOW!
u/sigveseb

no way!
u/yonatan

beautiful!
u/jellyedwards

That's incredible, well done!
u/jellyedwards

If you change this bit too use t it's like Saturn uses its ring as a hula hoop: 540+m*C(n+p*t)
u/katkip

woow... gj bro
u/keithclark

Nice!!!
u/aleamb

wow! superb!
u/iverjo

That's pretty rad
u/rnbw

my mind is officially boggled o_o
u/Purpzie

This is absolutely beautiful.
u/tomxor

Thanks for all the kind comments :) for those interested: the key is in the parity bit p=i&1 this allowed me to combine two different but similar functions by multiplying parts in an out on each iteration. You should be able to pull the two apart into something more intelligible.
u/magna

@tomxor are you on Twitter as @tomxor by any chance?
u/tomxor

I am not, nor am I on any other social network... unless you consider Github one :P but a different pseudonym..
u/jylikangas

Beautiful dweet!
u/aleamb

The Cosmos is all that is, or ever was, or ever will be. The contemplation of the this Cosmos stir us.
u/Renaud___

so Beautiful
u/ivylab

This is absolute badass
u/vain

OMG! This part blew me away!
u/jdspugh

Well done!

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davidsharp

remix of d/10524 by u/davidsharp

function u(t) {

c.onmousemove=({x:k,y,target:o,buttons})=>{x.font='60px a';if(buttons>0)x.fillRect(k/o.offsetWidth*c.width,y/o.offsetHeight*c.height,20,20)}

Oct 17 2018 12:51 PM UTC

}// 140/140

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Dwitter's Worst Drawing Tool

u/joeytwiddle

#interactive

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davidsharp

remix of d/10523 by u/davidsharp

function u(t) {

c.onclick=({x:k,y,target:o})=>{c.width|=o;x.font='60px a';x.fillText(k+','+y+'/'+o.offsetWidth+'x'+o.offsetHeight,70,70)}

Oct 17 2018 12:43 PM UTC

}// 121/140

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More onclick probing and testing

u/yonatan

try c.width=innerWidth

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davidsharp

remix of d/10522 by u/davidsharp

function u(t) {

c.onclick=_=>{c.width|=0;x.font='60px a';x.fillRect(_.x,_.y,9,9);x.fillText(_.x+','+_.y,70,70,1400)}

Oct 17 2018 12:30 PM UTC

}// 101/140

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testing onclick's co-ords

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davidsharp

function u(t) {

c.onclick=_=>x.fillStyle=R(T(t)*100%255,S(t)*100%255,C(t)*100%255,1)
for(i=0;i++<9;)x.fillRect(400+i*100+S(t)*300,200,50,400)

Oct 17 2018 12:18 PM UTC

}// 125/140

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Just testing onclick

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Agnes

function u(t) {

for(c.width|=i=5;i--;x.fillText([..."🤠🤙👟👟🖐️"][i],15*S(a=i/.8),-15*C(a)))x.setTransform(A=20*C(b=S(t*(i+.25))/3),B=20*S(b),-B,A,960,540)

Oct 17 2018 12:15 PM UTC

}// 135/140

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Howdy! I'm a cool cowboy!

u/Agnes

Feel free to remix this with your own head, hand and foot emojis, and change the value of b to make them rotate at different speeds.
u/magna

LOL
u/iverjo

:P

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yonatan

function u(t) {

c.width=-1
f=(u,v,a,r)=>r<1?x.lineTo(u,v):f(u+S(a)*r,v+C(a)*r,a*(z=0|t)+t/z,r/3)
for(i=1e3;i--;)j=i*2*Math.PI/999,f(150,84,j,55)
x.stroke()

Oct 17 2018 6:43 AM UTC

}// 139/140

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u/BalintCsala

What a coincidence https://math.stackexchange.com/questions/183…
u/yonatan

Wow! that's exactly how this works (circles around circles around circles)
u/katkip

Awesome
u/joeytwiddle

Yeah these wobbly circles are cool #spirograph #pattern
u/katkip

this is a low iteration #fractal

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Purpzie

remix of d/10506 by u/Purpzie

function u(t) {

for(r=Math.random,i=1e3;i--;x.fillRect(X,Y,25,25))X=r()*2e3,Y=r()*1e3,x.fillStyle=`hsl(${(S(t-X/99)+C(t-Y/99))*(S(t)*300)} 99%70%)`

Oct 16 2018 5:12 PM UTC

}// 131/140

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u/katkip

nice

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jbrewhaha

remix of d/10433 by u/tomxor

function u(t) {

x.fillRect(0,0,1e4,1e4)
t+=16
n=1200
i=3768
for(;i--;)x.clearRect(
960+270 * S(i/n) / S(i+t),
540-270 * C(i/n) 
,4,4)

Oct 16 2018 4:04 PM UTC

}// 117/140

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#blackhole

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ms.roboto

function u(t) {

x.lineWidth=4
c.onclick=e=>S=[e.clientX*3.4,e.clientY*3.4,1,0,Math.PI*2,1]
S[2]<2000&&(x.beginPath(),S[2]*=1.2,x.arc(...S),x.stroke())

Oct 16 2018 11:39 AM UTC

}// 134/140

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Click - Waves

u/magna

#interactive

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