Optimize openfarming check

And not return false if not a player(ie:mobs api) or unknown node, continue iterate on others areas(minor bug, generaly if 1 area it's protected).

README.md

@@ -101,10 +101,10 @@ Commands
   * `/area_pos {set,set1,set2,get}` -- Sets the area positions by punching
 	nodes or shows the current area positions.
 
-  * `/area_pos1 [X,Y,Z|X Y Z|X, Y, Z]` -- Sets area position one to your position or
+  * `/area_pos1 [X,Y,Z|X Y Z]` -- Sets area position one to your position or
 	the one supplied.
 
-  * `/area_pos2 [X,Y,Z|X Y Z|X, Y, Z]` -- Sets area position two to your position or
+  * `/area_pos2 [X,Y,Z|X Y Z]` -- Sets area position two to your position or
 	the one supplied.
 
   * `/areas_cleanup` -- Removes all ownerless areas.

api.lua

@@ -1,5 +1,24 @@
 local hudHandlers = {}
 
+---plants to place in openfarming
+local plants = {
+	["farming:beetroot"]="air", ["farming:blueberries"]="air", ["farming:cabbage"]="air",
+	["farming:carrot"]="air", ["farming:chili_pepper"]="air", ["farming:coffee_beans"]="air",
+	["farming:corn"]="air", ["farming:cucumber"]="air", ["farming:garlic_clove"]="air",
+	["farming:melon_slice"]="air", ["farming:onion"]="air", ["default:papyrus"]="air",
+	["farming:pea_pod"]="air",	["farming:peppercorn"]="air", ["farming:pineapple_top"]="air",
+	["farming:potato"]="air", ["farming:pumpkin_slice"]="air", ["farming:raspberries"]="air",
+	["farming:rhubarb"]="air",
+	["farming:seed_barley"]="air", ["farming:seed_cotton"]="air", ["farming:seed_hemp"]="air",
+	["farming:seed_mint"]="air", ["farming:seed_oat"]="air", ["farming:seed_rice"]="air",
+	["farming:seed_rye"]="air", ["farming:seed_wheat"]="air",
+	["farming:tomato"]="air",
+	["farming:trellis"]="air", ["farming:grapes"]="farming:trellis",
+	["farming:beanpole"]="air", ["farming:beans"]="farming:beanpole",
+	["morefarming:seed_wildcarrot"]="air", ["morefarming:seed_teosinte"]="air",
+	["morefarming:seed_carrot"]="air", ["morefarming:seed_corn"]="air",
+}
+
 areas.registered_protection_conditions = {}
 areas.registered_on_adds = {}
 areas.registered_on_removes = {}
@@ -113,7 +132,7 @@ function areas:getSmallestAreaAtPos(pos)
 	return smallest_area, smallest_id
 end
 
--- Checks if the area is unprotected, open, owned by player
+-- Checks if the area is unprotected, open[farming], owned by player
 -- or player is part of faction of [smallest] area at position.
 function areas:canInteract(pos, name)
 	if minetest.check_player_privs(name, self.adminPrivs) then
@@ -127,10 +146,26 @@ function areas:canInteract(pos, name)
 		areas_list = self:getAreasAtPos(pos)
 	end
 	local owned = false
+	local player = minetest.get_player_by_name(name)
+	local node = minetest.get_node(pos).name
 	for _, area in pairs(areas_list) do
 		-- Player owns the area or area is open
 		if area.owner == name or area.open then
 			return true
+		elseif area.openfarming then -- If area is openfarming
+			if player and minetest.registered_nodes[node] then
+				local wstack = player:get_wielded_item():get_name()
+				if wstack == "" then wstack = "hand" end
+				-- on_dig
+				if minetest.get_item_group(node, "plant") == 1
+					and (wstack == "hand" or minetest.registered_tools[wstack]) then
+					return true
+				end
+				-- on_place
+				if plants[wstack] ~= nil and plants[wstack] == node then
+					return true
+				end
+			end
 		elseif areas.factions_available and area.faction_open then
 			if (factions.version or 0) < 2 then
 				local faction_name = factions.get_player_faction(name)

chatcommands.lua

@@ -317,6 +317,28 @@ minetest.register_chatcommand("area_open", {
 })
 
 
+minetest.register_chatcommand(
+	"area_openfarming", {
+		params = "<ID>",
+		description = "Toggle an area as open farming (anyone can harvest and plant) or closed",
+		func = function(name, param)
+			local id = tonumber(param)
+			if not id then
+				return false, "Invalid usage, see /help area_openfarming."
+			end
+			
+			if not areas:isAreaOwner(id, name) then
+				return false, "Area "..id.." does not exist"
+					.." or is not owned by you."
+			end
+			local open = not areas.areas[id].openfarming
+			-- Save false as nil to avoid inflating the DB.
+			areas.areas[id].openfarming = open or nil
+			areas:save()
+			return true, ("Area %s to farming."):format(open and "opened" or "closed")
+		end
+})
+
 if areas.factions_available then
 	minetest.register_chatcommand("area_faction_open", {
 		params = S("<ID> [faction_name]"),
@@ -427,6 +449,8 @@ minetest.register_chatcommand("area_info", {
 			table.insert(lines,
 				S("You have extended area protection"..
 					  " limits (\"areas_high_limit\" privilege)."))
+		elseif privs.megabuilder then
+			table.insert(lines, "You are a megabuilder (\"megabuilder\" privilege).")
 		end
 
 		-- Area count
@@ -439,7 +463,7 @@ minetest.register_chatcommand("area_info", {
 		table.insert(lines, S("You have @1 areas.", area_num))
 
 		-- Area limit
-		local area_limit_line = privs.areas and
+		local area_limit_line = (privs.areas or privs.megabuilder) and
 			S("Limit: no area count limit") or
 			S("Limit: @1 areas", max_count)
 		table.insert(lines, area_limit_line)
@@ -460,6 +484,9 @@ minetest.register_chatcommand("area_info", {
 					limit, size_limit)
 				priv_limit_info("areas_high_limit",
 					limit_high, size_limit_high)
+				table.insert(lines, "Players with the \"megabuilder\" privilege can protect unlimited areas in size and number.")
+			elseif privs.megabuilder then
+				table.insert(lines, "You can protect areas unlimited in size and number.")
 			elseif has_prot_priv then
 				size_info(S("You can protect areas"), max_size)
 			end

hud.lua

@@ -44,8 +44,8 @@ minetest.register_globalstep(function(dtime)
 
 			table.insert(areaStrings, ("%s [%u] (%s%s%s)")
 					:format(area.name, id, area.owner,
-					area.open and S(":open") or "",
+					area.open and S(":open") or area.openfarming and ":openfarming" or "",
-					faction_info and ": "..faction_info or ""))
+					faction_info and ":"..faction_info or ""))
 		end
 
 		for i, area in pairs(areas:getExternalHudEntries(pos)) do

init.lua

@@ -35,6 +35,10 @@ minetest.register_privilege("areas_high_limit", {
 	description = S("Can protect more, bigger areas."),
 	give_to_singleplayer = false
 })
+-- Mega_builder privilege -- MFF
+minetest.register_privilege("megabuilder", {
+	description = "Can protect an infinite amount of areas."
+})
 
 if not minetest.registered_privileges[areas.config.self_protection_privilege] then
 	minetest.register_privilege(areas.config.self_protection_privilege, {

internal.lua

@@ -60,8 +60,6 @@ function areas:load()
 	end
 	file:close()
 	self:populateStore()
-
-	areas:_checkHierarchy()
 end
 
 --- Checks an AreaStore ID.
@@ -209,7 +207,6 @@ function areas:isSubarea(pos1, pos2, id)
 end
 
 -- Returns a table (list) of children of an area given its identifier
--- This is not recursive, meaning that only children and not grand-children are returned.
 function areas:getChildren(id)
 	local children = {}
 	for cid, area in pairs(self.areas) do
@@ -264,8 +261,10 @@ areas:registerProtectionCondition(function(pos1, pos2, name)
 end)
 
 -- check if the area is too big
+-- NALC: megabuilders skip checks on size and number of areas
 areas:registerProtectionCondition(function(pos1, pos2, name)
 	local privs = minetest.get_player_privs(name)
+	if not privs.megabuilder then	
 		local max_size = privs.areas_high_limit and
 			areas.config.self_protection_max_size_high or
 			areas.config.self_protection_max_size
@@ -275,6 +274,7 @@ areas:registerProtectionCondition(function(pos1, pos2, name)
 			(pos2.z - pos1.z + 1) > max_size.z then
 			return false, S("Area is too big.")
 		end
+	end
 end)
 
 -- Check number of areas the user has and make sure it not above the max
@@ -345,13 +345,10 @@ function areas:isAreaOwner(id, name)
 	if cur and minetest.check_player_privs(name, self.adminPrivs) then
 		return true
 	end
-	local seen = {}
+	while cur do
-	while cur and not seen[cur] do
 		if cur.owner == name then
 			return true
 		elseif cur.parent then
-			-- Prevent lock-ups
-			seen[cur] = true
 			cur = self.areas[cur.parent]
 		else
 			return false
@@ -359,56 +356,3 @@ function areas:isAreaOwner(id, name)
 	end
 	return false
 end
-
-local function get_parent_chain_if_recursive(area, completed)
-	-- Get uppermost parent
-	local affected = {}
-	while area do
-		if affected[area] then
-			-- List of affected areas
-			return affected
-		end
-		if completed[area] then
-			-- Already checked by another function call --> all OK
-			return nil
-		end
-		affected[area] = true
-		completed[area] = true
-
-		area = areas.areas[area.parent]
-	end
-	return nil -- all OK
-end
-
---- Internal function to ensure there are no circular parent/children occurrences
-function areas:_checkHierarchy()
-	local needs_save = false
-	local completed = {}
-	for _, area_1 in pairs(self.areas) do
-		local chain = get_parent_chain_if_recursive(area_1, completed)
-		if chain then
-			-- How can it be fixed if there is a longer chain?
-			local list = {}
-			for area, _ in pairs(chain) do
-				list[#list + 1] = area.parent
-			end
-
-			local instruction
-			if #list == 1 then
-				-- Trivial case, can be resolved in-place
-				instruction = "The issue was corrected automatically."
-				area_1.parent = nil
-				needs_save = true
-			else
-				instruction = "Please resolve this conflict manually. Expect issues."
-			end
-
-			core.log("error", "[areas] LOGIC ERROR! Detected a circular area hierarchy in the "
-				.. "following area ID(s): " .. table.concat(list, ", ") .. ". " .. instruction)
-		end
-	end
-	if needs_save then
-		-- Prevent repetitive spam upon startup
-		self:save()
-	end
-end

pos.lua

@@ -69,53 +69,68 @@ minetest.register_chatcommand("select_area", {
 	end,
 })
 
-local function area_pos_handler(name, param, nr)
+minetest.register_chatcommand("area_pos1", {
+	params = "[X Y Z|X,Y,Z]",
+	description = S("Set area protection region position @1 to your"
+		.." location or the one specified", "1"),
+	privs = {},
+	func = function(name, param)
 		local pos
 		local player = minetest.get_player_by_name(name)
 		if player then
 			pos = vector.round(player:get_pos())
 		end
-
-	-- Input parsing
-	local error_msg
 		local found, _, x_str, y_str, z_str = param:find(
-		"^(~?-?%d*)[, ] *(~?-?%d*)[, ] *(~?-?%d*)$")
+			"^(~?-?%d*)[, ](~?-?%d*)[, ](~?-?%d*)$")
 		if found then
-		pos, error_msg = parse_relative_pos(x_str, y_str, z_str, pos)
+			local get_pos, reason = parse_relative_pos(x_str, y_str, z_str, pos)
+			if get_pos then
+				pos = get_pos
+			elseif not get_pos and reason then
+				return false, reason
+			end
 		elseif param ~= "" then
-		return false, S("Invalid usage, see /help @1.", "area_pos" .. nr)
+			return false, S("Invalid usage, see /help @1.", "area_pos1")
 		end
 		if not pos then
-		return false, error_msg or S("Unable to get position.")
+			return false, S("Unable to get position.")
 		end
-
-	-- Assign the position
 		pos = posLimit(vector.round(pos))
-	if nr == 1 then
 		areas:setPos1(name, pos)
-	else
+		return true, S("Area position @1 set to @2", "1",
-		areas:setPos2(name, pos)
-	end
-	return true, S("Area position @1 set to @2", tostring(nr),
 				minetest.pos_to_string(pos))
-end
-
-minetest.register_chatcommand("area_pos1", {
-	params = "[X Y Z|X,Y,Z|X, Y, Z]",
-	description = S("Set area protection region position @1 to your"
-		.." location or the one specified", "1"),
-	privs = {},
-	func = function(name, param)
-		return area_pos_handler(name, param, 1)
 	end,
 })
 
 minetest.register_chatcommand("area_pos2", {
-	params = "[X Y Z|X,Y,Z|X, Y, Z]",
+	params = "[X Y Z|X,Y,Z]",
 	description = S("Set area protection region position @1 to your"
 		.." location or the one specified", "2"),
 	func = function(name, param)
-		return area_pos_handler(name, param, 2)
+		local pos
+		local player = minetest.get_player_by_name(name)
+		if player then
+			pos = vector.round(player:get_pos())
+		end
+		local found, _, x_str, y_str, z_str = param:find(
+			"^(~?-?%d*)[, ](~?-?%d*)[, ](~?-?%d*)$")
+		if found then
+			local get_pos, reason = parse_relative_pos(x_str, y_str, z_str, pos)
+			if get_pos then
+				pos = get_pos
+			elseif not get_pos and reason then
+				return false, reason
+			end
+		elseif param ~= "" then
+			return false, S("Invalid usage, see /help @1.", "area_pos2")
+		end
+		if not pos then
+			return false, S("Unable to get position.")
+		end
+		pos = posLimit(vector.round(pos))
+		areas:setPos2(name, pos)
+		return true, S("Area position @1 set to @2", "2",
+			minetest.pos_to_string(pos))
 	end,
 })