Tweetcart: Aurora

Aurora! Showcased in the Museum of Tweetcart History.

A tweetcart is a Lua script that can run in Pico-8 and fit within a single Tweet, with 280 characters or fewer.

--#pico8 #tweetcart
q=127s=sin::_::srand()cls(1)for n=0,q do
pset(n,rnd(84),7)line(n,q,n,85+s(n/77)*n/16,0)end
for n=0,86 do
i=n+t()%8 x=n+41y=44+1.5*s(cos(n/q))*s(i/8)-40*sqrt(-x/q)l=52*s(.5+n/312)for j=0,l-1 do
z=flr(sqrt(j/l)*3)+1
if(j%z==0)pset(x,y-j,10+z)end
end
flip()goto _

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