Haven't written a #pico8 #tootcart in months so hammered out something in 5 mins whilst waiting in a car. will probably be the bae for something bigger and better.
::_::
cls()
z=t()/2
for x=0,16 do
for y=0,16 do
sx=x*8
sy=y*8
line(sx,sy,cos(z+x/16)*4+sx,sin(z+y/16)*4+sy,7)
line(sx,sy,-cos(z)*4+sx,-sin(z)*4+sy,7)
end
end
flip()
goto _