Button combos with Up & Down?

Hi all!
I'm trying to give my character an "uppercut" attack and I want it to be assigned to SQUARE and UP..
My Code looks like:

Code (csharp):

1.  
2.  public class Input
3.     {
4.         public const string HORIZONTAL = "Horizontal";
5.         public const string VERTICAL = "Vertical";
6.         public const string JUMP = "XBUTTON";
7.         public const string PUNCH = "SQUARE"; // I WANT TO ADD SQUARE AND UP HERE
8.         public const string UPPERCUT = "L1";
9.     }
10.  

the PS4 controllers output looks like this
SQUARE
Square = joystick button 0

Axes:
LeftStickX = X-Axis
LeftStickY = Y-Axis (Inverted?)
RightStickX = 3rd Axis
RightStickY = 4th Axis (Inverted?)

I assign the buttons inside the Unity Input Controller... But I have no idea how to make combos..
Do I have to code it or? Tricky question, but thanks for any help!

 

Up is generally the Y-AXIS = 1 so you can do something like this.

Code (CSharp):

1. if(LeftStickY >= 1 && PUNCH)
2. {
3. Uppercut();
4. }
5.  

Try checking this out as well, hopefully it helps you out.

http://wiki.unity3d.com/index.php?title=KeyCombo