From ed7f57bf2f21af64039f07ac547ff676167b0ede Mon Sep 17 00:00:00 2001
From: ShadowNinja <shadowninja@minetest.net>
Date: Wed, 15 Jan 2014 20:10:24 -0500
Subject: Add IDs to HUD and areas:getAreasAtPos(pos)

---
 api.lua | 38 ++++++++++++++++++++++----------------
 1 file changed, 22 insertions(+), 16 deletions(-)

(limited to 'api.lua')

diff --git a/api.lua b/api.lua
index 88c8b1e..95a3987 100644
--- a/api.lua
+++ b/api.lua
@@ -1,20 +1,30 @@
 
+-- Returns a list of areas that include the provided position
+function areas:getAreasAtPos(pos)
+	local a = {}
+	local px, py, pz = pos.x, pos.y, pos.z
+	for id, area in pairs(self.areas) do
+		local ap1, ap2 = area.pos1, area.pos2
+		if px >= ap1.x and px <= ap2.x and
+		   py >= ap1.y and py <= ap2.y and
+		   pz >= ap1.z and pz <= ap2.z then
+			a[id] = area
+		end
+	end
+	return a
+end
+
 -- Checks if the area is unprotected or owned by you
 function areas:canInteract(pos, name)
 	if minetest.check_player_privs(name, {areas=true}) then
 		return true
 	end
 	local owned = false
-	for _, area in pairs(self.areas) do
-		p1, p2 = area.pos1, area.pos2
-		if pos.x >= p1.x and pos.x <= p2.x and
-		   pos.y >= p1.y and pos.y <= p2.y and
-		   pos.z >= p1.z and pos.z <= p2.z then
-			if area.owner == name then
-				return true
-			else
-				owned = true
-			end
+	for _, area in pairs(self:getAreasAtPos(pos)) do
+		if area.owner == name then
+			return true
+		else
+			owned = true
 		end
 	end
 	return not owned
@@ -23,12 +33,8 @@ end
 -- Returns a table (list) of all players that own an area
 function areas:getNodeOwners(pos)
 	local owners = {}
-	for _, area in pairs(self.areas) do
-		if pos.x >= area.pos1.x and pos.x <= area.pos2.x and
-		   pos.y >= area.pos1.y and pos.y <= area.pos2.y and
-		   pos.z >= area.pos1.z and pos.z <= area.pos2.z then
-			table.insert(owners, area.owner)
-		end
+	for _, area in pairs(self:getAreasAtPos(pos)) do
+		table.insert(owners, area.owner)
 	end
 	return owners
 end
-- 
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