[DAKYSKYE]

I hope I will help you by that example code:

PHP код:

public OnPlayerUpdate(playerid)
{
    if(IsPlayerInRangeOfActor(playerid, actorid))
        SendClientMessage(playerid, -1, "You are near actor");
    return 1;
}
stock IsPlayerInRangeOfActor(playerid, actorid, Float:radius = 5.0)
{
    new
        Float:x,
        Float:y,
        Float:z;
    GetActorPos(actorid, x, y, z);
    if(IsPlayerInRangeOfPoint(playerid, radius, x, y, z) && GetPlayerVirtualWorld(playerid) == GetActorVirtualWorld(actorid))
        return 1;
    return 0;
} 


I will be grateful if you + my reputation (in case if I helped you..)