First stuff in PICO-8! Starfield effect :D

starfield.p8

pico-8 cartridge // http://www.pico-8.com
version 16
__lua__
stars = {}
center_coord = 64
total_stars = 64

function _init()
 cls()
 for i=1,total_stars do
  add(stars, gen_star())
 end
end

function _update()
 for i=1, #stars do
  local star = stars[i]
  star = update_star(star)
  
  if (star.x < 0 or star.x >= 128 or star.y < 0 or star.y >= 128) then
   stars[i] = gen_star()
  else
   stars[i] = star
  end
 end 
end

function _draw()
 rectfill(0, 0, 127, 127, 0)
 for star in all(stars) do
  pset(star.x, star.y, star.c)
 end
end

function gen_star()
 star = {}
 
 star.x = center_coord
 star.y = center_coord
 star.c = rnd(16)
 star.v = rnd(3) * 2
 star.ang = rnd(1)
	
 return star
end

function update_star(star)
 star.x += cos(star.ang) * star.v
 star.y += sin(star.ang) * star.v
 
 return star
end