doors.lua

function landrush.protect_against_door(door)
	local definition = minetest.registered_items[door]
	local on_place = definition.on_place
	function definition.on_place(itemstack, placer, pointed_thing)
		local bottom = pointed_thing.above
		local top = {x=pointed_thing.above.x, y=pointed_thing.above.y+1, z=pointed_thing.above.z}
		local name = placer:get_player_name()
		if landrush.can_interact(top,name) and landrush.can_interact(bottom, name) then
			return on_place(itemstack, placer, pointed_thing)
		else
			local topowner = landrush.get_owner(top)
			local bottomowner = landrush.get_owner(bottom)
			if topowner and bottomowner and topowner ~= bottomowner then
				minetest.chat_send_player(name, "Area owned by "..topowner.." and "..bottomowner)
			elseif topowner then
				minetest.chat_send_player(name, "Area owned by "..topowner)
			else
				minetest.chat_send_player(name, "Area owned by "..bottomowner)
			end
		end
	end
end

if minetest.get_modpath("doors") then

	landrush.protect_against_door("doors:door_wood")
	landrush.protect_against_door("doors:door_steel")

end