Functions in a table [SOLVED]

[akopyl]

Is there a more elegant way of doing this?

Code: Select all

function map.setLvl(n)
  if n == 0 then
    map.load0()
  elseif n == 1 then
    map.load1()
  elseif n == 2 then
    map.load2()
  elseif n == 3 then
    map.load3()
  end
end

This doesn't work

Code: Select all

function map.setLvl(n)
 map.load[n]()
end

[zorg]

Yes, there is!

Code: Select all

function map.setLvl(n)
 map['load' .. n]()
end

You need to use the [] notation for tables, and concatenate the first part of the key with the index, then call that value which is the function returned by that expression.

[akopyl]

Yes, there is!

Code: Select all

function map.setLvl(n)
 map['load' .. n]()
end

You need to use the [] notation for tables, and concatenate the first part of the key with the index, then call that value which is the function returned by that expression.

Wow, crazy.
Thanks for the help. I always knew there was a better way than doing my dumbass if stack.

[zorg]

Alternatively, if you'd just populate your map table with integer indices, you could then use map[n]() instead, without any concatenating.