Added skeleton of pclasses

- This. Is. A. Skeleton. Not finished YET.

mods/pclasses/README.md

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+Player Classes
+==============
+
+Yet another class mod for Minetest.
+
+# TODO
+ - Flush and read system for `pclasses.datas.players`
+
+
+# Namespaces
+
+## pclasses
+ - All our stuff
+
+### pclasses.api
+ - All functions used to declare, get, set classes
+
+### pclasses.classes
+ - All classes and their specs
+
+### pclasses.datas
+ - Miscellaneous datas
+
+#### pclasses.datas.players
+ - List of all players' class. Index is player's name and value is the class's name
+
+#### pclasses.datas.hud_ids
+ - Surely useful in the future with a hypothetical hud to show current class
+
+
+# Functions
+
+### pclasses.api.create_class_id
+ - Arguments : None
+ - Indicates the next free id/index in the classes' table
+
+### pclasses.api.id_for_class
+ - Arguments : cname (class' name)
+ - Returns the id/index corresponding the class in the classes' table
+ - Returns 0 if not found, nil if no name given
+
+### pclasses.api.register_class(cname)
+ - Argument : cname
+ - Registers a class in the classes' table
+ - Pretty useless at the moment
+ - Returns class' id or nil if any error
+
+### pclasses.api.get_class_by_id
+ - Argument : id
+ - Return the class' specs (table) corresponding an id or nil when not found
+
+### pclasses.api.get_class_by_name
+ - Argument : cname
+ - Return the class' specs (table) corresponding a class name or nil if not found
+
+### pclasses.api.get_player_class
+ - Argument : pname (player's name)
+ - Return the player's current class' name
+
+### pclasses.api.get_class_players
+ - Argument : cname
+ - Return a list (table) of all players with class cname
+
+### pclasses.api.set_player_class
+ - Arguments : pname, cname
+ - Assign a player the cname class
+

mods/pclasses/init.lua

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+-------------------
+-- Player Classes
+--
+
+-- NOTE: This is a very simple interface for classes, more features will be
+--       added depending on the various mechanisms we will need
+
+-- Global namespace
+pclasses = {}
+
+-- API
+pclasses.api = {}
+
+-- Classes
+pclasses.classes = {}
+
+-- Data
+pclasses.datas = {}
+pclasses.datas.players = {}
+pclasses.datas.hud_ids = {} -- HUD maybe?
+
+
+-- Various utility functions
+
+-- Get an ID number dedicated to the class
+function pclasses.api.create_class_id()
+	return table.getn(pclasses.classes)+1
+end
+
+function pclasses.api.id_for_class(cname)
+	if cname then
+		for k,v in ipairs(pclasses.classes) do
+			if v and v.name and v.name == cname then
+				return k
+			end
+		end
+		return 0
+	end
+	return nil
+end
+
+-- Register the class (basic registration)
+function pclasses.api.register_class(cname)
+	if not cname then
+		minetest.log("error", "[PClasses] Error registering unamed class")
+		return
+	end
+
+	local c_id = pclasses.api.create_class()
+	pclasses.classes[c_id] = {name = cname}
+	return c_id
+end
+
+------------------------
+-- Getters and Setters
+--
+
+-- Get class specs
+--  by id
+function pclasses.api.get_class_by_id(id)
+	return pclasses.classes[id]
+end
+
+-- by name
+function pclasses.api.get_class_by_name(cname)
+	return pclasses.classes[pclasses.api.id_for_class(cname)]
+end
+
+
+-- Get single player
+function pclasses.api.get_player_class(pname)
+	return pclasses.datas.player[pname]
+end
+
+-- Get all players for a class
+function pclasses.api.get_class_players(cname)
+	local pnames = {}
+	if pclasses.api.get_class_by_name(cname) then
+		for p,c in ipairs(pclasses.datas.players) do
+			if c == cname then
+				table.insert(pnames, table.getn(pnames)+1)
+			end
+		end
+	end
+end
+
+-- Set single player
+function pclasses.api.set_player_class(pname, cname)
+	if pclasses.api.get_class_by_name(cname) then
+		pclasses.datas.players[pname] = cname
+		return true
+	end
+	return false
+end