[edzis84]

How can i make callback which is called when player leaves the water?

[ikey07]

get if player is in water each 1 second, once he is not, he left the water, and you can give him a towel.

[MohanedZzZ]

You can use this include.
http://pastebin.com/RXr8ZfJ9
Function:

pawn Код:

IsPlayerInWater( playerid ) //Check if player is in any ocean from the GTA SA

Credits to Gen.SoNN.

[Schneider]

That included returns '1' when the player z-position is below 1.5, so it will also return '1' when the player is in the quarry, since that's below sea level too.

[Abagail]

pawn Код:

public OnPlayerUpdate(playerid)
{
    if(InWater[playerid] == true && !IsPlayerInWater(playerid))
    {
          InWater[playerid] = false;
          CallLocalFunction("OnPlayerLeaveWater", "i", playerid);
          return true;
    }
    if(IsPlayerInWater(playerid)) InWater[playerid] = true;
    return 1;
}

Using an include such as the one shared above for the simple IsPlayerInWater function.