Detecting if integer is even or odd?

[inevit4ble]

Hi Every1,

This is an easy one, but for the life of me I can't remember how to do it

What method do I use in-order the check if a given integer is even or odd?

It would be used for some If Statements

Much appreciated Thanks!

 

[Accname]

Divide it by 2, multiply it by 2 again and check if its equal to its original value. Keep in mind to use integers only and not reals.

 

[azareus]

Divide it by 2, multiply it by 2 again and check if its equal to its original value. Keep in mind to use integers only and not reals.

And the way that works is the fact that integers are floored. Therefore:
3/2 = 1
1*2 = 2
2 != 3
3 is odd.

32/2 = 16
16*2 = 32
32 = 32
32 is even.

 

[inevit4ble]

AH! There we go...perfect

 

[Parsival]

• EvenOrOdd
  • Actions
    • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
      • If - Conditions
        • a Less or equal 1.00
      • Then - Actions
        • If (a Equal to 0.00) then do (Game - Display to (All players) the text: Given number is even.) else do (Game - Display to (All players) the text: Given number is odd.)
        • Skip remaining actions
      • Else - Actions
    • Set a = (a - 2.00)
    • Trigger - Run EvenOrOdd <gen> (checking conditions)

That's my idea.

 

[vypur85]

Use mod.

If...
  YourValue mod 2 Equal to 0
Then...
  It's Even
Else...
  It's Odd

 

[inevit4ble]

oOo

I can see by your example what the out come would be but what does mod actually do?

 

[vypur85]

I believe it's also explained in the editor itself.

Mod gives the balance of the resulting division.

Example:
(5 mod 2) Equals to 1
(10 mod 10) Equals to 0
(20 mod 10) Equals to 0
(23 mod 20) Equals to 3
etc...

In your case, you just need to check whenever it is 0. It simply means the value can be divided to 2 and gives no balance.

 

[azareus]

Wait does WE have modulo? I never knew

 

[vypur85]

Yeah. It saved my life plenty of times.
Long time no see, azareus.

 

[inevit4ble]

dam...I should of found that myself...and much earlier...!...!...!...
Thanks vypur