/*    /lib/virtual/virt_sky.c
 *    From DeadSouls Object Library
 *    A virtual object for air rooms
 *    Created by Dvarsk 980310
 *    Version: @(#) virt_sky.c 1.1@(#)
 *    Last modified: 98/08/25
 */
#include <lib.h>
#include <virtual.h>
#include <medium.h>
#include <message_class.h>
#include <position.h>
inherit LIB_VIRT_LAND;
private mixed PreventLand;
varargs static void create(int x, int y,int z){
    virt_land::create( x,  y, z);
    SetMedium(MEDIUM_AIR);
}
varargs static void Setup(int x, int y,int z){
    virt_land::create( x,  y, z);
    SetMedium(MEDIUM_AIR);
}
string GetGround(){
    return GetExit("down");
}
string SetGround(string str){
    AddExit("down", str);
    return str;
}
mixed GetPreventLand(){
    return PreventLand;
}
mixed SetPreventLand(mixed val){
    return (PreventLand = val);
}
mixed CanFly(object who, string dir){
    if( !dir || dir == "" ){
        return "Fly where?";
    }
    else if( dir == "down" ){
        if( stringp(PreventLand) ){
            return PreventLand;
        }
        else if( functionp(PreventLand) ){
            mixed tmp = evaluate(PreventLand, who);
            if( tmp != 1 ){
                return tmp;
            }
        }
        if( !GetGround() ){
            return "There is nothing below you but open sea.";
        }
    }
    if( who->GetPosition() != POSITION_FLYING ){
        return "You are not flying!";
    }
    return virt_land::CanGo(who, dir);
}
//mixed CanGo(object who, string dir){
//    return CanFly(who, dir);
//}
mixed eventFly(object who, string dir){
    mapping exit = GetExitData(dir);
    if( GetDoor(dir) && GetDoor(dir)->GetClosed() ){
        who->eventPrint("You fly into " + GetDoor(dir)->GetShort(dir) + ".");
        eventPrint(who->GetName() + " flies into " +
                GetDoor(dir)->GetShort(dir) + ".", who);
        return 1;
    }
    if( exit["pre"] && !evaluate(exit["pre"], dir) ){
        return 1;
    }
    who->eventMoveLiving(exit["room"], dir, "$N flies in.");
    if( dir =="down" ){
    }
    if( exit["post"] ){
        evaluate(exit["post"], dir);
    }
    return 1;
}
//mixed eventGo(object who, string dir){
//    if(GetMedium()==MEDIUM_AIR) return eventFly(who, dir);
//    return ::eventGo(who, dir);
//}
mixed eventReceiveObject(object ob){
    return virt_land::eventReceiveObject(ob);
}