simple mineteserver `make it do something` worldmod.

init.lua

--[[

  By default, minetestserver is idle until a player connects, so
  we trigger it to generate some landscape for us which should
  nicely cause it to do some actual work.

  Afterwards, shut down the server gracefully.

--]]

local msgs = {
	[core.EMERGE_CANCELLED] = "cancelled",
	[core.EMERGE_ERRORED] = "error",
	[core.EMERGE_FROM_MEMORY] = "loaded from memory",
	[core.EMERGE_FROM_DISK] = "loaded from disk",
	[core.EMERGE_GENERATED] = "generated"
}

minetest.after(0, function()
	minetest.emerge_area({x = -100, y = -100, z = -100},
		{x = 100, y = 100, z = 100},
		function(blockpos, action, calls_remaining, param)
			print("BBT: blockpos " .. minetest.pos_to_string(blockpos) .. ": " .. msgs[action])
		end)

	print("BBT: minetestserver running OK and executing tasks")
	minetest.after(5, function()
		print("BBT: minetestserver shutting down")
		minetest.request_shutdown("Automatic shutdown")
	end)
end)