[Misiur]

I usually do it something like

pawn Код:

YCMD:enter(playerid, params[], help) {
    call OnPlayerEnter(playerid);

    return 1;
}

Then in includes

pawn Код:

hook OnPlayerEnter(playerid) {
    if(!IWantThisToBeCalled) return Y_HOOKS_CONTINUE_RETURN_1;

    //We open a door or shit
    return Y_HOOKS_BREAK_RETURN_1; //We break the chain so other callbacks are not called
}