Odd or Even

[Thirsty Panther]

How do I tell if a variable is odd or even using Lua?

% is used in other languages is it the same with Leadwerks?

[catch22]

Seems Lua doesn't have a modulo operator prior to 5.1 (not sure what LE is at the moment).

a % b == a - math.floor(a/b)*b

You can also try math.mod or fmod.

from: https://stackoverflow.com/questions/9695697/lua-replacement-for-the-operator

 

[gamecreator]

I don't know if Lua does integer math but you can divide the number by 2 then multiply it back by 2 and see if it becomes the same number.  In C it looks like this:

if ((n/2)*2 == n)
      printf("Even\n");
   else
      printf("Odd\n");

For example, 7 divided by 2 would become 3 (because 3.5 becomes 3 when it's an integer) and would then double to 6.  Since 7 doesn't equal 6, you know it was an odd number.

(Credit: https://www.programmingsimplified.com/c/source-code/c-program-check-odd-even)

 

[Thirsty Panther]

Thanks Catch and GC for the help.

Turns out that Leadwerks does recognize the % as  modulo.

So if  X%2  equals 0 then its an even number and

if X%2 does not equal 0 its an odd number. 

Changing the 2 to other numbers will be true if the x is a multiple of that number.

Now back to making a hex map.

[Slastraf]

or go into 3d and make fractals with modulo.. altoguh u would use cpp for that