Random dweets | Dwitter

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.

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SpecialAgent

function u(t) {

if(!t)c.width=900;for(Y=450,X=(t*60)>>0;Y--;)if(X&Y)x.fillRect(X,Y,1,1)

Mar 2 2017 12:14 AM UTC

}// 72/140

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I woke up at 1AM and realized I never played with Sierpinski triangles. What a shame!

u/donbright

very nice and simple
u/alien

Hi what does if(!t) mean :) ?

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FireFly

remix of d/3078 by u/FireFly

function u(t) {

for(c.width|=0,i=4e4;--i;C[a=i&8?i:i^15]<(a%16-8)**2+((S+t*2)%16-8)**2||x.fillRect(i%256*8,S*8,8,8))t?S=i>>8:C[i]=Math.random()*32

Oct 10 2021 3:54 AM UTC

}// 130/140

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Animated sprite silhouettes! (crawling)

u/FireFly

Adding a #time dimension to an old dweet of mine, by rethinking it a bit :)
u/rep_movsd

Amazing
u/rep_movsd

Looks like some of your earliest dweets dont render anymore on the new dwitter shim code
u/FireFly

hmm, they seem to work fine for me :o (in Firefox)
u/rep_movsd

Must be Chromium issues then

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BackendForth

function u(t) {

v=Math.random
w=256
x.fillStyle=R(v()*w,v()*w,v()*w)
x.fillRect(0,540+S(t)*t*9,9,9)
p=C(t)*C(t)
x.drawImage(c,8+p*8,4.5+S(t)*4.5,1904,1071)

Jan 2 2018 5:33 AM UTC

}// 139/140

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u/quuxman

alien warp crystal
u/johnp

holy shit

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pavel

function u(t) {

for(let i=c.width|=0,p=355/226;i--;x[i&5?'arc':'moveTo'](960,540,2e3/z,b=p/4*((i>>3)+S(i*p)/2+4*t+z/2),b))z=2-4*t%1+(i>>7)+C(i*p)/2;x.fill()

Jan 11 2020 8:41 PM UTC

}// 140/140

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Aw this is broken in Safari

u/aleamb

#tunnel #d3

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Jezza

function u(t) {

f=(a,b)=>55*i*b((t+99)/(1+a));c.width|=p='☉☿♀♁♂♃♄♅♆♇';x.font='4em m';for(i=0;i<10;i++)x.fillText(p[i],960+f(i,C),540+f(i,S))

Apr 9 2019 2:02 AM UTC

}// 124/140

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A not-at-all-accurate orrery

u/KilledByAPixel

cool idea
u/donbright

#astronomy #planets #physics
u/IV

#text

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Toby

remix of d/25405 by u/TorusField

function u(t) {

x.fillStyle=`hsl(${S(t)*360} 50% 50%`
for(i=0;i++<19;)
x.fillRect(i*100+S(t*t*t)*30-100,500*S(t)+520,t/10,15)

May 3 2022 10:05 AM UTC

}// 109/140

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jonathan_b

remix of d/6204 by u/jonathan_b

function u(t) {

for(c.width|=s=i=504;i-=6;)q=T(S(i*S(t/s))),x.lineTo(s*4*C(q),s+s*C(i/C(t/99))*S(q)),x.lineWidth=i/9,x.strokeStyle=R(i,i/q,i*q*9),x.stroke()

Jan 20 2018 2:57 AM UTC

}// 140/140

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metamero

remix of d/11726 by u/metamero

function u(t) {

t?x.lineTo(m+=p+=a/=d=((a*a+b*b)/k)**1.5,n+=q+=b/d,x.stroke()):k=(m=X=Y=640)*(n=p=q=3);onclick=e=>X=(Y=e.y*k/innerWidth)*e.x/e.y;a=X-m;b=Y-n

Jan 10 2019 4:07 PM UTC

}// 140/140

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#gravity #orbit #physics #interactive click to set atractor gravity ∝ 1/||r||**3

u/metamero

add ondblclick=reset for convenience

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iverjo

function u(t) {

c.width=2e3;for(i=24;i--;)x.fillRect(960+20*i*C(t*i/8),540+20*i*S(t*i/8),i,i)

Feb 21 2016 8:30 PM UTC

}// 77/140

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#spiral

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E-Mouse

remix of d/8390 by u/E-Mouse

function u(t) {

for(c.width|=i=2e3;i--;)x.fillRect(S(t*3+i/15)*i+960,C(t*2+i/15)*i+540,W=i/25,W)

Jun 4 2018 1:37 PM UTC

}// 80/140

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Which way is it spinning? #illusion

u/katkip

Both