GetPlayerId(p) Why do sometimees do i have to add +1 to work?

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I was wondering why do I have to add +1 next to GetPlayerId(p) to work? Can you tell me so I'll know when to put the +1..
 
GetPlayerId() gets the jass id of the player where Player one's id is 0
to get it work as the GUI version just use this
GetConvertedPlayerId(p)
that will get the gui player id where Player one's id is 1
 
The thing is im trying to stay away from gui.. thats why always use this
local player p = GetTriggerPlayer()
local integer i = GetPlayerId(p)+1
 
You should get used to the first element being 0. Applies to all arrays.
 
GUI just makes it simpler by adding the extra one.
In GUI: Players are 1-12
in Jass: Players are 0-11
(with the exception of neutrals etc)

If you convert the default GUI code you will see that the interface automatically adds the 1 to make it more user-friendly.
Basically its always 0-11, in the cases of Player Numbers and Arrays; as mentioned above.

If you are going to continue working in Jass, just try and remember to almost always use 0-11.
 
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