How do I tell if a player has a certain inventory item?

[GoToHellDave]

Hi Veterans.

I'm aware that there is already a thread on this topic but it is nearly ten years old and it doesn't seem to be relevant anymore.

I'm currently trying to detect if the player has a certain item the inventory and, if he does, turn on a specific dialogue option. Here is the code I am using:

if(cDave.inv6 != 0)
  {
option-on 7
  {
   else
   {
option-off 7
   }

I get an error telling me that "inv6" isn't a public member of 'character'. What am I doing wrong?

As always, any help is very much appreciated.

[Crimson Wizard]

There's no such variable as inv6 in character class. You mean "inv" array, in which case you access its elements by index, putting the index in square brackets like

Code: ags

cDave.inv[6];

I do not know which version of AGS you are using, but in the recent version "inv" is considered obsolete. If you are using AGS 3.+, I'd recommend to use one of the following:
Use either Character.HasInventory function (if you do not need to know exact quantity, just the fact of presence)

Code: ags

cDave.HasInventory(iInventoryName);

or Character.InventoryQuantity[] array (the exact substitute for "inv"):

Code: ags

cDave.InventoryQuantity[6];

[GoToHellDave]

Thanks for the quick reply. Unfortunately I'm still having trouble. I don't know if this is because I'm doing this in the dialogue script or because I've made another schoolboy error. My code now looks like this:

Code: AGS

  if(cDave.HasInventory(iFFPass))
  {
option-on 7
  {
    
  else
  {
option-off 7
  }

and I get the error "parse error at 'else'"

Also, if I remove the 'else' section of the statement I still get the same error.

Can you tell me what I'm doing wrong?

[Crimson Wizard]

Your second curly bracket is wrong: you use opening one '{', while you should use closing one '}'

[GoToHellDave]

Derp. Another silly mistake.

Thanks for the help.