factions/nodes.lua

function factions.can_use_node(pos, player,permission)
    if not player then
        return false
    end
    local parcel_faction = factions.get_faction_at(pos)
	if not parcel_faction then
        return true
    end
    local player_faction = factions.get_player_faction(player)
	if player_faction and (parcel_faction.name == player_faction.name or parcel_faction.allies[player_faction.name]) and player_faction:has_permission(player, permission) then
		return true
	end
end
-- Make default chest the faction chest.
if minetest.registered_nodes["default:chest"] then
	minetest.register_lbm({
		label = "Replace faction chest with default one.",
		name = "factions:replace_factions_chest",
		nodenames = {"factions:chest"},
		action = function(pos, node)
			minetest.swap_node(pos, {name="default:chest"})
			local parcel_faction = factions.get_faction_at(pos)
			if parcel_faction then
				local meta = minetest.get_meta(pos)
				meta:set_string("faction", parcel_faction.name or "")
				meta:set_string("infotext", "Faction Chest (owned by faction " ..
						meta:get_string("faction") .. ")")
			end
		end
	})
	local dc = minetest.registered_nodes["default:chest"]
	local def_on_rightclick = dc.on_rightclick
	local clonenode = {}
	for k,v in pairs(minetest.registered_nodes["default:chest"]) do clonenode[k] = v end
	clonenode.after_place_node = function(pos, placer)
		local parcel_faction = factions.get_faction_at(pos)
		if parcel_faction then
			local meta = minetest.get_meta(pos)
			meta:set_string("faction", parcel_faction.name or "")
			meta:set_string("infotext", "Faction Chest (owned by faction " ..
					meta:get_string("faction") .. ")")
		end
	end
	clonenode.can_dig = function(pos,player)
		local meta = minetest.get_meta(pos);
		local inv = meta:get_inventory()
		return inv:is_empty("main") and
				factions.can_use_node(pos, player:get_player_name(),"container")
	end
	clonenode.allow_metadata_inventory_move = function(pos, from_list, from_index,
			to_list, to_index, count, player)
		if not factions.can_use_node(pos, player:get_player_name(),"container") then
			return 0
		end
		return count
	end
	clonenode.allow_metadata_inventory_put = function(pos, listname, index, stack, player)
		if not factions.can_use_node(pos, player:get_player_name(),"container") then
			return 0
		end
		return stack:get_count()
	end
	clonenode.allow_metadata_inventory_take = function(pos, listname, index, stack, player)
		if not factions.can_use_node(pos, player:get_player_name(),"container") then
			return 0
		end
		return stack:get_count()
	end
	clonenode.on_rightclick = function(pos, node, clicker, itemstack, pointed_thing)
		if not factions.can_use_node(pos, clicker:get_player_name(),"container") then
			return itemstack
		end
		def_on_rightclick(pos, node, clicker, itemstack, pointed_thing)
	end
	minetest.register_node(":default:chest",clonenode)
end
-- Edit default doors and trapdoors to make them require the door permission.
local doors = {"doors:door_wood_a","doors:door_wood_b","doors:door_steel_a","doors:door_steel_b","doors:door_glass_a","doors:door_glass_b"
,"doors:door_obsidian_glass_a","doors:door_obsidian_glass_b","doors:trapdoor","doors:trapdoor_open","doors:trapdoor_steel","doors:trapdoor_steel_open"}
for i,k in ipairs(doors) do
	if minetest.registered_nodes[k] then
		local dw = minetest.registered_nodes[k]
		local def_after_place_node = dw.on_rightclick
		local def_can_dig = dw.can_dig
		local clonenode = {}
		for k,v in pairs(minetest.registered_nodes[k]) do clonenode[k] = v end
		clonenode.on_rightclick = function(pos, node, clicker, itemstack, pointed_thing)
			if factions.can_use_node(pos, clicker:get_player_name(),"door") then
				def_after_place_node(pos, node, clicker, itemstack, pointed_thing)
			end
		end
		if def_can_dig then
			clonenode.can_dig = function(pos, digger)
				if factions.can_use_node(pos, digger:get_player_name(),"door") then
					return def_can_dig(pos, digger)
				end
				return false
			end
		else
			clonenode.can_dig = function(pos, digger)
				if factions.can_use_node(pos, digger:get_player_name(),"door") then
					return true
				end
				return false
			end
		end
		minetest.register_node(":"..k,clonenode)
	end
end
-- Code below was copied from TenPlus1's protector mod(MIT) and changed up a bit.

local x = math.floor(factions_config.parcel_size / 2.1)

minetest.register_node("factions:display_node", {
	tiles = {"factions_display.png"},
	use_texture_alpha = true,
	walkable = false,
	drawtype = "nodebox",
	node_box = {
		type = "fixed",
		fixed = {
			-- sides
			{-(x+.55), -(x+.55), -(x+.55), -(x+.45), (x+.55), (x+.55)},
			{-(x+.55), -(x+.55), (x+.45), (x+.55), (x+.55), (x+.55)},
			{(x+.45), -(x+.55), -(x+.55), (x+.55), (x+.55), (x+.55)},
			{-(x+.55), -(x+.55), -(x+.55), (x+.55), (x+.55), -(x+.45)},
			-- top
			{-(x+.55), (x+.45), -(x+.55), (x+.55), (x+.55), (x+.55)},
			-- bottom
			{-(x+.55), -(x+.55), -(x+.55), (x+.55), -(x+.45), (x+.55)},
			-- middle (surround parcel)
			{-.55,-.55,-.55, .55,.55,.55},
		},
	},
	selection_box = {
		type = "regular",
	},
	paramtype = "light",
	groups = {dig_immediate = 3, not_in_creative_inventory = 1},
	drop = "",
})

minetest.register_entity("factions:display", {
	physical = false,
	collisionbox = {0, 0, 0, 0, 0, 0},
	visual = "wielditem",
	visual_size = {x = 1.0 / 1.5, y = 1.0 / 1.5},
	textures = {"factions:display_node"},
	timer = 0,

	on_step = function(self, dtime)

		self.timer = self.timer + dtime

		if self.timer > 6 then
			self.object:remove()
		end
	end,
})

-- End