how can I detect which "tile" the mouse is on, not the x/y but the tile, as the map editor I'm planning to make is gonna have a tilemap.. To convert from screen x/y to map x/y coordinates, you need to divide the screen coordinates by your gridSize. For example, if your grid size is 64 pix...

If file2 requires file1, it can see any globals defined by file1. If file3 then includes file2, it can also see any globals defined in file1, because they are globals. But globals are evil, so what you really want is for each file to return the things it's supposed to expose, and explicitly require...

Ok I'll try TSerial and Ser and see which suits my needs better, though I have a new problem, how can I detect which "tile" the mouse is on, not the x/y but the tile, as the map editor I'm planning to make is gonna have a tilemap..

Just a little question, say there are these lua files, file1, file2 and file3, file2 has require "file1" so file2 can use the functions, variables etc. in file1 then file3 has require "file2", so file3 can also access file1?(as file2 has require "file1") or am I wrong?

Ok I have put all the necessary functions in a table: local timer = {} local timers = {} local counter = 0 local function checkNumber(n) if type(n) ~= "number" or n < 0 then return false end return true end function timer.Free(idd) for _, t in pairs(timers) do if idd == timer.id then timer...

I tried reworking on it, maybe this is better? :? local timers = {} local counter = 0 local function checkNumber(n) if type(n) ~= "number" or n < 0 then return false end return true end function freeTimer(idd) for _, timer in pairs(timers) do if idd == timer.id then timers[timer.id] = nil ...

So I tried to make a simple timer function, so here's what I made: activeTimers = {} function checkNumber(n) if type(n) ~= "number" or n < 0 then error("[Timer]The delay argument must have a positive number.") end end function timer(delay, func, ...) checkNumber(delay) table.inse...

I'm a bit confused on how to use metatables, how can I use setmetatable, __index, and __call functions? what is their purpose?
and is there a difference between metatable and an ordinary table ?

Well, my game is a tower defense game, the things I'm having problems with is:
1. Grid map
2. Loading a tile map
3. Saving the map

I seem to be struggling on this one, I don't know how to make a Map Editor for my game D: anyone can give me some useful tips/help so I can make this?