Passing a table as a function argument

[pwniknoobz]

I am trying to pass a table as a function argument, and reference a member variable of the given table in the function to which it's being passed.

Such as this:

Code: Select all

require"game_object"
require"map_object"

function love.load()
   --CREATE NEW OBJECTS
   gameRisk = Game:new()
   mapNewMap = Map:new()
   
   -- SET INITIAL OBJECT VARIABLES
   gameRisk:setPlayers(4)
   mapNewMap:assignTerritories(gameRisk)
end

function love.draw()

if gameRisk.players > 0 then
    love.graphics.print("Hello World".." "..gameRisk.players, 400, 300)
end

end

game_object.lua:

Code: Select all

-- GAME CLASS PROTOTYPE

Game = {players=0,time_elapsed=0,numPlayersSet=false}

function Game:new (o)
	o = o or {}
	setmetatable(o, self)
	self.__index = self
	return o
end

function Game:setPlayers (numPlayers)
	self.players = numPlayers
	
	if self.players == numPlayers then
		numPlayersSet = true
		return true
	end
	
	return false
end

map_object.lua:

-- MAP OBJECT CLASS PROTOTYPE

Code: Select all

Map = {territories = 42}

function Map:new (o)
	o = o or {}
	setmetatable(o, self)
	self.__index = self
	return o
end

function Game:assignTerritories (curGameInstance)
	if curGameInstance.numPlayersSet== true then
		return true
	end
	
	return false
end

The error I'm getting is - attempt to call 'assignTerritories' (a nil value)

I believe this is the block in map_object.lua that is producing the issue:

Code: Select all

if curGameInstance.numPlayersSet == true then
return true
end

What is the best manner in which to pass a table as an argument to a member function of another table?

[bmelts]

The biggest problem I see is that assignTerritories is a member function of Game, not Map...

[pwniknoobz]

I'm such a noob.