added /protector_show command (thanks agaran)

README.md

@@ -44,7 +44,7 @@ Change log:
       (note: previous name can still be used)
 2.0 - Added protector placement tool (thanks to Shara) so that players can easily
       stand on a protector, face in a direction and it places a new one at a set
-      distance to cover protection radius.
+      distance to cover protection radius.  Added /protector_show command (thanks agaran)
 
 Lucky Blocks: 6
 
@@ -76,9 +76,14 @@ replace owner with new name
 	/protector_replace owner new_owner
 
 reset name list
+
 	/protector_replace -
 
 
+show protected areas of your nearby protectors (max of 5)
+	/protector_show
+
+
 The following lines can be added to your minetest.conf file to configure specific features of the mod:
 
 protector_radius = 5

admin.lua

@@ -117,3 +117,36 @@ minetest.register_abm({
 		end
 	end
 })
+
+
+-- show protection areas of nearby protectors owned by you (thanks agaran)
+minetest.register_chatcommand("protector_show", {
+	params = "",
+	description = "Show protected areas of your nearby protectors",
+	privs = {},
+	func = function(name, param)
+
+		local player = minetest.get_player_by_name(name)
+		local pos = player:getpos()
+		local r = protector.radius -- max protector range.
+
+		-- find the protector nodes
+		local pos = minetest.find_nodes_in_area(
+			{x = pos.x - r, y = pos.y - r, z = pos.z - r},
+			{x = pos.x + r, y = pos.y + r, z = pos.z + r},
+			{"protector:protect", "protector:protect2"})
+
+		local meta, owner
+
+		-- show a maximum of 5 protected areas only
+		for n = 1, math.min(#pos, 5) do
+
+			meta = minetest.get_meta(pos[n])
+			owner = meta:get_string("owner") or ""
+
+			if owner == name then
+				minetest.add_entity(pos[n], "protector:display")
+			end
+		end
+	end
+})