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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grisell2

function u(t) {


c.width=n=2e3;t/=99;for(p=0;p<n*2;p++)i=C(p),j=T(t/i),k=S(t*i),x.beginPath(),x.arc(j*n/7+n/2,i*n+n/6,(j>0?j:-j)*400,j*9,k*5),x.stroke()

Jan 2 2018 3:52 PM UTC

}// 138/140

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u/magna

WOW

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KilledByAPixel

function u(t) {

Y=c.height|=0
p=Math.PI/2
for(d=1;Y>390;d=-d,Y-=2*o)for(j=5;j--;x.arc(960,Y-o,170,q=d*(t+j*p),q))o=170*C((m=(d*t%p+p)%p)>p/2?p-m:m)
x.fill()

Jul 21 2019 1:08 AM UTC

}// 140/140

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Walking Squares

u/KilledByAPixel

https://www.reddit.com/r/loadingicon/comment…

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pythech

remix of d/8490 by u/pythech

function u(t) {

x.beginPath()
x.fillStyle=R()
c.width|=0
for(i=500;--i;) {
x.arc(S(k=i*1042+t)*C(i)*400+900,C(k)*400+500,19,0,9)
}
x.fill()

Jun 11 2018 6:30 AM UTC

}// 123/140

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New_Core

remix of d/3007 by u/New_Core

function u(t) {

b=c.width|=1,d=350
X=10*S(t)
Y=10*C(t)
for(i=d;i--;x.fillRect(X*Z+960,Y*Z+540,Z,Z))Z=d/(9+d-t*i%d),X+=6*C(a=i/50-9*S(t/8)*S(i/9)),Y+=6*S(a)

Aug 3 2017 7:42 AM UTC

}// 139/140

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total chaos ;)

u/13thptr

#d3

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KilledByAPixel

remix of d/32950 by u/KilledByAPixel

function u(t) {

for(c.width=w=99,i=6e3;i;X+=a)++T<w&&Y<6-S(T>29&&X/9^T/9)*31||C-1&&(a=C=1)?Y-=C:x.fillRect(i%w,i--/w,1-T/w,Y=T=1,a=i%w/50-1,C=1-i/4e3,X=t*w)

Dec 21 2024 5:53 PM UTC

}// 140/140

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Shadow Town Uncompressed 🏙️

u/KilledByAPixel

combined two for loops into one and several more golfs to make this fit

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taupelink

function u(t) {

for(i=m=1080,X=Y=0;i--;x.fillRect(X*m,Y*m,1,1))[X,Y]=[X+((r=Math.random()*3|0)-X-Y*Y)/2,Y+(r%2-Y+X*Y)/2],x.fillStyle='#'+'F909F'.substr(r,3)

Aug 16 2019 3:21 AM UTC

}// 140/140

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d/15423

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taupelink

remix of d/29674 by u/taupelink

function u(t) {

f=u=>Math.abs((u%6-3)*(u%8-4));for(i=3e4;i--;x.fillRect(960+22*r*C(h),540+75*s*S(h),t<1,(f(9*s)+f(s+18*h)&s)/2))r=i*t%40,h=r*i%6.283,s=r**.5

Mar 27 2024 1:38 AM UTC

}// 140/140

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d/29697

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function u(t) {

c.width=1920;for(i=0;i<9;i++)
x.fillStyle = R(C(T(t))*40*i,S(T(t)),S(t)*100*t,1)
x.fillRect(960,250,S(T(t))*300,(t*10),R(0,0,0,0.4),100)

Oct 14 2018 12:31 PM UTC

}// 136/140

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first try...

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atsn

function u(t) {

window.location=`/id/${Math.floor(Math.random()*10212)}`

Oct 4 2018 7:43 AM UTC

}// 56/140

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On the off chance this hasn't been done before.

u/katkip

GENIUS #external
u/katkip

Not really external but you get the point. It has been already done but a different way.

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taupelink

remix of d/23760 by u/taupelink

function u(t) {

for(i=q=k=810;--i;x.fillRect(k*X,k-q*Y,-i/v,q*Y/v))f=i*t,X=f*f%5,Y=X*f%4-2,x.fillStyle=R(s=q+i*Y*.4,q^=-s,q^=255,(k+q)*(Y+3)**2/4e4),v=4**t

Sep 6 2021 6:21 AM UTC

}// 139/140

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d/23766

u/rep_movsd

You need to write a blog about this particular technique
u/taupelink

i'd like to, but it would take time (i'm a super slow writer) and it's honestly not a priority at the moment. I can at least say this: Part of how I get four vertical bands is having Y range from less than -1 to greater than 1 (in this case, -2 to 2). Multiplying or dividing by Y then has four effects: stretch or compress, do or do not reverse sign
u/rep_movsd

A one page breakdown would be nice, or perhaps I'll write one
u/taupelink

ah ok...like a line-by-line explanation? that's doable...i'll write something up next weekend!