CreateVehicle wont create object, no error

[wyattwic 38]

Hey guys,

 

For some reason, CreateVehicle below isn't throwing any errors, but isn't creating anything.   I changed everything to public variables and inspected it, it is being passed the correct string.

If I change to the alternate syntax, I get an error as if I passed nil for a string on the original syntax.

 

Any suggestions would be awesome!

 

player setVariable ["NadeIsActive","wait"];
		_currentNade = ((currentThrowable player) select 0);
		_special = ["I_IR_Grenade","O_IR_Grenade","B_IR_Grenade","MiniGrenade","HandGrenade","HandGrenade_Stone"];

		if (_currentNade in _special) then {
			_specialtypes = [["I_IR_Grenade","I_IRStrobe"],["O_IR_Grenade","O_IRStrobe"],["B_IR_Grenade","B_IRStrobe"],["MiniGrenade","mini_Grenade"],["HandGrenade","GrenadeHand"],["HandGrenade_Stone","GrenadeHand_stone"]];
			{
				if (_currentNade isequalto (_x select 0)) then {
					_spawnthisnade = _x select 1;
				};
			} foreach _specialtypes;
			
		} else {
			_spawnthisnade = _currentNade;
		};

		_nade = _spawnthisnade createVehicle position player;

 

[pierremgi 4737]

You need to spawn a "groundWeaponHolder" (a sort of invisible recipient), instead of your grenades. Then fill it with your grenade (addItemCargoGlobal does the job).

[wyattwic 38]

42 minutes ago, pierremgi said:

You need to spawn a "groundWeaponHolder" (a sort of invisible recipient), instead of your grenades. Then fill it with your grenade (addItemCargoGlobal does the job).

 

Thanks Piereemgi, but I am not trying to place an inactive grenade. I am trying to create an active one.

 

The above code, when I have a hand grenade in my inventory  as my actively selected grenade, should produce this

"GrenadeHand" createVehicle position player

and that works.

Edited April 26, 2017 by wyattwic

[Larrow 2792]

Your variable _spawnthisnade is undefined where the createVehcile command is used, as it is inside the scope of the IF statement.

Either private the variable outside of the IF statement..

private [ "_spawnthisnade" ];

//rest of code as is

or use the return from the statement...

_spawnthisnade = if (_currentNade in _special) then {
    _specialtypes = [["I_IR_Grenade","I_IRStrobe"],["O_IR_Grenade","O_IRStrobe"],["B_IR_Grenade","B_IRStrobe"],["MiniGrenade","mini_Grenade"],["HandGrenade","GrenadeHand"],["HandGrenade_Stone","GrenadeHand_stone"]];
    {
        if (_currentNade isEqualTo (_x select 0)) exitWith {
            _x select 1;
        };
    }forEach _specialtypes;
    
} else {
    _currentNade;
};

[wyattwic 38]

Thank you @Larrow!  IDK how I missed that.  I'll give it a try after lunch and release it when I am done.   This is part of a cook/carry grenade script I've been working on.

 

[killzone_kid 1326]

10 hours ago, Larrow said:

private [ "_spawnthisnade" ];

Just want to mention that on very rare occasion this might not be enough. If possible, it is always better to assign default value too.

private _spawnthisnade = "";

[pierremgi 4737]

2 hours ago, killzone_kid said:

Just want to mention that on very rare occasion this might not be enough. If possible, it is always better to assign default value too.

private _spawnthisnade = "";

Please, could you explain what could be the difference between:

private _spawnthisnade = "";

and

_spawnthisnade = "";

Thanks.

[Larrow 2792]

4 hours ago, killzone_kid said:

Just want to mention that on very rare occasion this might not be enough.

Really. In what conditions does it fail? I mean I know it will be nil if its never given a value but I have never seen it fail to define a variable in a higher scope from where it has its value set. Can you elaborate KK?

[killzone_kid 1326]

31 minutes ago, Larrow said:

Really. In what conditions does it fail? I mean I know it will be nil if its never given a value but I have never seen it fail to define a variable in a higher scope from where it has its value set. Can you elaborate KK?

 

I don't remember exact circumstance, but it involved a few scopes. Even though private ["_blahblah"] was used before all of those scopes it wasn't enough somehow. Only after forcing value on it I was able to solved it. So I just added this to Arma "perks" in my mind under, "safe way of doing things" category ;)