A question about functions.

[libintia]

2 days ago i watched a random Lua Video Lua tutorial. The guy making the tutorial creates this function :

function FishCake( ply )
    ply:concommand(" say F@#!ING MIGNBAGS ")
end

This right here

(ply)

...is driving me insane.

Why did he put the ( ply ) after creating the function?
is it important? Do i need to do that if i wanted to use the player in my function?

I asked the author of the video, but i did not understand what he meant.

]skip to 0:40

[Wodden]

ply is an argument of the funtion FishCake. An for concommand.Add, ply equals the player who ran the concommand.

[libintia]

ply is an argument of the funtion FishCake. An for concommand.Add, ply equals the player who ran the concommand.

ok, i know ply stands for player. but,
Do you mean that ply argument in the FishCake is (just a variable that's) unrelated to the one in concommand?

[Grocel]

ok, i know ply stands for player. but,
Do you mean that ply argument in the FishCake is (just a variable that's) unrelated to the one in concommand?

When you call FishCake then you have to enter FishCake(ply) in your code, don't forget to set the variable of ply before call FishCake with ply = player.GetAll()([1] for example.

[libintia]

ply is an argument of the funtion FishCake. An for concommand.Add, ply equals the player who ran the concommand.

Thanks for your time.

When you call FishCake then you have to enter FishCake(ply) in your code, don't forget to set the variable of ply before call FishCake with ply = player.GetAll()([1] for example.

it makes sense. thanks a lot.

[Wodden]

it makes sense. thanks a lot.

No it doesn't, the variable ply is set when someone runs the command "gm_talk_text".

[libintia]

No it doesn't, the variable ply is set when someone runs the command "gm_talk_text".

Well, i don't think i get why he used the ply argument when he created the function, as far as i know, ply = player or LocalPlayer by default. Witch means that he didn't have to use it as an argument.
he could have just use it directly

like this for example:

function FishCake()
ply:comncommand(" say F@#!ING MIGNBAGS ")
end

But in any case I'm new to LUA and I am trying to understand how this works. I am currently reading (Lua Programming in Lua (first edition) ), and I'm almost done reading the functions section, but according to Chapter 5( Functions ): We pass parameters to the function so that we can pass arguments from outside the function or when we call the function.
or am i wrong?

This is very confusing! LUA is confusing.
But i do appreciate your help, thank you.

[Wodden]

Well, i don't think i get why he used the ply argument when he created the function, as far as i know, ply = player or LocalPlayer by default. Witch means that he didn't have to use it as an argument.
he could have just use it directly.

It doesn't work that way either. Imagine, you create a function:

GiveAR2Ammo

And you want to pass a player object and how much ammo you want to give. You would do:

function GiveAR2Ammo(Player,Amount)
    Player:GiveAmmo(Amount,"ar2",true)
end

Now you have your function, now you call it by running:

GiveAR2Ammo(player.GetByID(1), 250)

Now you are passing a Player entity and a number as arguments to the function. Inside of the function you can access them like any variable.

[libintia]

It doesn't work that way either. Imagine, you create a function:

And you want to pass a player object and how much ammo you want to give. You would do:

Now you have your function, now you call it by running:

Now you are passing a Player entity and a number as arguments to the function. Inside of the function you can access them like any variable.

.

I think i finally, get it.
He Used the ( ply ) as a parameter, only so that he can decide witch player the function will take effect on when he calls the function later on!
i.e.

ply is just a parameter nothing more!

[Wodden]