From aca830fd2298980758e09908087a9f5f74dff93f Mon Sep 17 00:00:00 2001
From: Alden Peeters <starbounder1024@gmail.com>
Date: Sat, 21 Sep 2019 09:33:42 -0400
Subject: [PATCH] Add support for playerfactions mod (#37)

Add faction indicator to HUD
---
 api.lua          |  8 ++++++--
 chatcommands.lua | 24 ++++++++++++++++++++++++
 hud.lua          |  8 ++++++--
 init.lua         |  2 ++
 mod.conf         |  1 +
 5 files changed, 39 insertions(+), 4 deletions(-)

diff --git a/api.lua b/api.lua
index 8103b84..40a9841 100644
--- a/api.lua
+++ b/api.lua
@@ -94,9 +94,13 @@ function areas:canInteract(pos, name)
 	for _, area in pairs(self:getAreasAtPos(pos)) do
 		if area.owner == name or area.open then
 			return true
-		else
-			owned = true
+		elseif areas.factions_available and area.faction_open then
+			local faction_name = factions.get_player_faction(area.owner)
+			if faction_name ~= nil and faction_name == factions.get_player_faction(name) then
+				return true
+			end
 		end
+		owned = true
 	end
 	return not owned
 end
diff --git a/chatcommands.lua b/chatcommands.lua
index ddff850..faffb03 100644
--- a/chatcommands.lua
+++ b/chatcommands.lua
@@ -286,6 +286,30 @@ minetest.register_chatcommand("area_open", {
 })
 
 
+if areas.factions_available then
+	minetest.register_chatcommand("area_faction_open", {
+		params = "<ID>",
+		description = "Toggle an area open/closed for members in your faction.",
+		func = function(name, param)
+			local id = tonumber(param)
+			if not id then
+				return false, "Invalid usage, see /help area_faction_open."
+			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].faction_open
+			-- Save false as nil to avoid inflating the DB.
+			areas.areas[id].faction_open = open or nil
+			areas:save()
+			return true, ("Area %s for faction members."):format(open and "opened" or "closed")
+		end
+	})
+end
+
+
 minetest.register_chatcommand("move_area", {
 	params = "<ID>",
 	description = "Move (or resize) an area to the current positions.",
diff --git a/hud.lua b/hud.lua
index 24f5414..ffe764e 100644
--- a/hud.lua
+++ b/hud.lua
@@ -21,9 +21,13 @@ minetest.register_globalstep(function(dtime)
 		local areaStrings = {}
 
 		for id, area in pairs(areas:getAreasAtPos(pos)) do
-			table.insert(areaStrings, ("%s [%u] (%s%s)")
+			local faction_info = area.faction_open and areas.factions_available and
+					factions.get_player_faction(area.owner)
+			area.faction_open = faction_info
+			table.insert(areaStrings, ("%s [%u] (%s%s%s)")
 					:format(area.name, id, area.owner,
-					area.open and ":open" or ""))
+					area.open and ":open" or "",
+					faction_info and ":"..faction_info or ""))
 		end
 
 		for i, area in pairs(areas:getExternalHudEntries(pos)) do
diff --git a/init.lua b/init.lua
index 8179b28..53d4eb6 100644
--- a/init.lua
+++ b/init.lua
@@ -4,6 +4,8 @@
 
 areas = {}
 
+areas.factions_available = minetest.global_exists("factions")
+
 areas.adminPrivs = {areas=true}
 areas.startTime = os.clock()
 
diff --git a/mod.conf b/mod.conf
index 0ca8ec1..e694301 100644
--- a/mod.conf
+++ b/mod.conf
@@ -1 +1,2 @@
 name = areas
+optional_depends = playerfactions