[Dayrion]

Might this code can help you:

PHP код:

IsActorInPlayerFacingAngle(playerid, actorid, Float:max_angle = 90.0, bool:isdynamic = DEFAULT_IS_DYNAMIC_PARAMETER)
{
    if(!IsPlayerConnected(playerid) || !AP_IsValidActor(actorid))
        return 0;
    new Float:ang,
        Float:second_ang,
        Float:result;
    GetPlayerFacingAngle(playerid, ang);
    #if USING_STREAMER
        if(isdynamic)
            GetDynamicActorFacingAngle(actorid, second_ang);
        else
            GetActorFacingAngle(actorid, second_ang);
    #else
        #pragma unused isdynamic
        GetActorFacingAngle(actorid, second_ang);
    #endif
    if(ang < 180.0)
        result = 180.0 + ang;
    else
        result = ang - 180.0;
    
    if(second_ang + max_angle > 360.0 || second_ang - max_angle < 0.0)
        return ((360.0 - max_angle <= result <= 360.0) || (0.0 <= result <= max_angle));
    else
        return (second_ang - max_angle <= result <= second_ang + max_angle);
} 


Taken from : https://github.com/Dayrion/actor_plu...nc#L1444-L1473