Dissecting turrets

[nbk]

I wrote this to be a slight(albeit extremely small) guide to turrets, with people adding things in. Thanks for any help anyone provides.

1. Open up npc_turret_floor.
2. Look at the different values

More noticeable ones would be the ammo type. Since I am reading through the files one by one, I can't see what it is linked too. Anyways, try modifying this variable to see what you can come up with.

Another would be m_flFieldOfView. The member variable is commented as field of view - Either how far it rotates, or how far it can "see"(or both).

Right below m_flFieldOfView are health/maxhealth.

I am not sure if this works. I am fairly sure that when you use the npc_create, it passes a reference to the string, which then goes through a case statement... mr_unanimouse, it would please me if you could help out a bit(with what is called with npc_create).

Also, I have not found a variable for the turrets being friendly/non-friendly. I have seen the function IRelationType(), and would possibly be it.



Thank you, qck. I just learned how to use that function(from you of course(LETC)). Also showed me a great use of inheritance

 

[qckbeam]

For friendly turrets I just wrote this tiny bit of code in after CNPC_FloorTurret in npc_turret_floor.cpp

//-----------------------------------------
// Purpose: Create a friendly floor turret 
// Created by: qckbeam
//-----------------------------------------
									

class CNPC_FloorTurretFriend : public CNPC_FloorTurret
{
	Class_T	Classify( void ) 
	{
		if( m_bEnabled ) 
			return CLASS_PLAYER_ALLY;

		return CLASS_NONE;
	}

};

LINK_ENTITY_TO_CLASS( npc_turret_floor_friend , CNPC_FloorTurretFriend );

//End qck edit

I'm sure there might be another way to do it, but this works quite well in my opinion.

 

[Notes]

For friendly turrets I just wrote this tiny bit of code in after CNPC_FloorTurret in npc_turret_floor.cpp
[...]

It works pretty good.. thanks! I was looking for -something- to make friendly turrets..

but.. it would still be nice to be able to make a friendly turret on an un-modded HL2. (for a few reasons, including that the SDK doesn't seem to be up to date with the actual HL2)

And there's one other thing, which isn't -huge- just annoying and also a curiosity... (it'd be interesting to figure it out..) the friendly turrets created aren't friendly to the in-game friendly turrets, and vice-versa.. Maybe you noticed already..? And know why..?

Oh well, thanks again for the cool code piece..

- Notes

 

[Angry Lawyer]

It could be something to do with the fact you can dynamically change the relationships of entities in hammer.

But, yeah, changing Classify is probably the most efficient way to make a friendly turret. Although, instead of creating a new class as shown above, it could be more interesting to have a variable that can be changed from outside triggers to choose its Classify type, so turrets can be made good/evil mid-game.

-Angry Lawyer