How do you use Tick() and PostBeginPlay()?

[XASSASSINX]

Hello everyone, i was working on this monster and i wish he had the following behavior: He has a roll move, and i want him to do this once, when he sees the player for the first time. Meaning if he is alerted by a sound, he will just chase around, until he spots the player, checks sight (probably with the usage of a A_JumpIfTargetInLOS), then rolls. I wish he tried this every tick, until he spotted the player. But i dont have much idea how to this with a virtual function in ZScript. any help? It seems something simple enough to do, but i don't really understand how to do action functions jumps in ZSCript functions other then basic "return" stuff.

[inkoalawetrust]

This page has info on how to use virtual functions in ZScript, along with most of the virtuals exposed to it.

For Tick() you'd override it like this, and then add your own code on top.

Code: Select all

	Override Void Tick()
	{
		Super.Tick();
		
		If (IsFrozen()) Return; //Not strictly needed, but useful to stop code that SHOULDN'T run every tick when the actor is frozen.
		
		//Your code here
	}

But if you just want your actor to roll once when he is alerted by a sound, I'd suggest adding something like this in its' chase state instead:

Code: Select all

//In the class definition.
Bool Rolled;

//The state block
	See:
		SPRT AABBCCDD 4
		{
			A_Chase();
			If (!Rolled && Target && IsVisible(Target)/* && CheckFOV(Target,90/2)*/) //Can uncomment CheckFOV to also do exactly what it says.
				Return FindState("DoABarrelRoll");
			
			Return State (Null);
		}
		Loop;
	DoABarrelRoll:
		//Code goes here.
		TNT1 A 0 {Rolled = True;} //One time roll done.
		Goto See;

[XASSASSINX]

Thank you! I think you made a mistake of not including all necessary parameters for IsVisible though, as it was error'ing me out, but i fixed it. i also added this little check of the player needing to be aiming at the enemy for him to dodge. But this works great.

Code: Select all

	
	ZSP2 AAABBBCCCDDD 2 
	 {
	  A_ZSpecChaseHealNoATK(); 
	  If (!OnSightDodge && Target && IsVisible(Target, false) && CheckFOV(Target,90/2) && CheckIfInTargetLOS(85)) 
	  Return FindState("TryRollAfterPain");	  
	  
	  Return State(null);
	 }
	Loop;