libraries:
	Mobs Redo (https://content.minetest.net/packages/TenPlus1/mobs/)
	give_initial_stuff from Minetest Game

examples (tiny snippets copied, or just viewed):
	Minetest Game
		sword code
	Mineclone2 (https://content.minetest.net/packages/Wuzzy/mineclone2/)
		glass code
	mobs_animal (https://content.minetest.net/packages/TenPlus1/mobs_animal/)
		projectile throwing code
	nc_sky_ultra_hard (https://content.minetest.net/packages/Kimapr/nc_sky_ultra_hard/)
		take damage in void
	Credits (https://content.minetest.net/packages/ApolloX/credits/)
		money system
