[Drebin]

Create an integer inside the function that adds +5 ( integer = integer + 5; ) every time the function is called (every 5 seconds)
Then, make an if query inside the function:

pawn Код:

if(integer == 5)
{
    SendClientMessage(playerid,COLOR_RED,"blahblah");
}
else if(integer == 10)
{
    SetPlayerHealth(playerid, 0);
}
[...]