C# Item.IsChildOf方法代码示例

        public static bool CanImbueItem(Mobile from, Item item)
        {
            if (item == null || !item.IsChildOf(from.Backpack))
                from.SendLocalizedMessage(1079575);  // The item must be in your backpack to imbue it.
            else if (item.LootType == LootType.Blessed || item.LootType == LootType.Newbied)
                from.SendLocalizedMessage(1080438);  // You cannot imbue a blessed item.
            else if (item is BaseWeapon && Spells.Mystic.EnchantSpell.IsUnderSpellEffects(from, (BaseWeapon)item))
                from.SendLocalizedMessage(1080130);  // You cannot imbue an item that is currently enchanted.
            else if (item is BaseWeapon && ((BaseWeapon)item).FocusWeilder != null)
                from.SendLocalizedMessage(1080444);  //You cannot imbue an item that is under the effects of the ninjitsu focus attack ability.
            else if (IsSpecialItem(item))
                from.SendMessage("You cannot imbue an item with such strange magical properties.");
            else if (item is IFactionItem && ((IFactionItem)item).FactionItemState != null)
                from.SendLocalizedMessage(1114312); // You cannot imbue faction items.
            else if (item is BaseJewel && !(item is BaseRing) && !(item is BaseBracelet))
                from.SendLocalizedMessage(1079576); // You cannot imbue this item.
            else if (IsInNonImbueList(item.GetType()))
                from.SendLocalizedMessage(1079576); // You cannot imbue this item.
            else if (item is BaseWeapon && ((BaseWeapon)item).TimesImbued >= 20)
                from.SendMessage("This item has been modified too many times and cannot be imbued any further.");
            else if (item is BaseArmor && ((BaseArmor)item).TimesImbued >= 20)
                from.SendMessage("This item has been modified too many times and cannot be imbued any further.");
            else if (item is BaseJewel && ((BaseJewel)item).TimesImbued >= 20)
                from.SendMessage("This item has been modified too many times and cannot be imbued any further.");
            else if (item is BaseHat && ((BaseHat)item).TimesImbued >= 20)
                from.SendMessage("This item has been modified too many times and cannot be imbued any further.");
            else
                return true;

            return false;
        }

		private void DestroyFurniture( Mobile from, Item item )
		{
			if ( !from.InRange( item.GetWorldLocation(), 3 ) )
			{
				from.SendLocalizedMessage( 500446 ); // That is too far away.
				return;
			}
			else if ( !item.IsChildOf( from.Backpack ) && !item.Movable )
			{
				from.SendLocalizedMessage( 500462 ); // You can't destroy that while it is here.
				return;
			}

			from.SendLocalizedMessage( 500461 ); // You destroy the item.
			Effects.PlaySound( item.GetWorldLocation(), item.Map, 0x3B3 );

			if ( item is Container )
			{
				if ( item is TrapableContainer )
					(item as TrapableContainer).ExecuteTrap( from );

				((Container)item).Destroy();
			}
			else
			{
				item.Delete();
			}
		}

			protected override void OnTarget( Mobile from, object targeted )
			{
				if ( targeted is ContainerReNameTool )
				{
					ContainerReNameTool knife = targeted as ContainerReNameTool;
					if (knife != null)
					{
//						int knifeuses = knife.Charges;
//						m_ContainerReNameTool.Charges += knifeuses;
//						knife.Delete();
						from.SendMessage( 38,"You cant use this on it self!");
					}
				}
				else if ( targeted is CommodityDeedBox )
					from.SendMessage( 38, "You cant use this on Commodity Deed Box!");

				
				// put in else if statements to have it not engrave certain things, like baseweapons, or basearmor, etc etc
//				else if ( targeted is Item )
				else if ( targeted is BaseContainer )
				{
					m_engtarg = (Item)targeted;
					if(!m_engtarg.IsChildOf(from.Backpack)) from.SendMessage( 38, "This must be in your backpack to change its name." );

					else
					{
						from.SendMessage( 75,"What would you like to re-name this item to?" );
						m_ContainerReNameTool.Charges -= 1 ;
						m_ContainerReNameTool.InvalidateProperties();
						from.Prompt = new RenameContPrompt( m_engtarg );
					}
				}
				else from.SendMessage( 38, "You cannot re-name that." );
			}

        public static bool HasAccess( Mobile mob, Item item )
        {
            if( item == mob.Backpack )
                return false;
            else if( mob.AccessLevel >= AccessLevel.GameMaster ) // staff have no limits
                return true;
            else if( item.IsChildOf( mob.Backpack ) )
                return true;

            return false;
        }

        public static void AddContextMenuEntries(Mobile from, Item item, List<ContextMenus.ContextMenuEntry> list, HarvestSystem system)
        {
            if ( system != Mining.System )
                return;

            if ( !item.IsChildOf( from.Backpack ) && item.Parent != from )
                return;

            PlayerMobile pm = from as PlayerMobile;

            if ( pm == null )
                return;

            list.Add( new ContextMenuEntry( pm.ToggleMiningStone ? 6179 : 6178 ) );
            list.Add( new ToggleMiningStoneEntry( pm, false, 6176 ) );
            list.Add( new ToggleMiningStoneEntry( pm, true, 6177 ) );
        }

 public static bool CheckAccessible( Item tool, Mobile m )
 {
     return ( tool.IsChildOf( m ) || tool.Parent == m );
 }

		public static void AddContextMenuEntries( Mobile from, Item item, List<ContextMenuEntry> list, HarvestSystem system )
		{
			if ( system != Mining.System )
				return;

			if ( !item.IsChildOf( from.Backpack ) && item.Parent != from )
				return;

			PlayerMobile pm = from as PlayerMobile;

			if ( pm == null )
				return;
				
			int typeentry = 0;
				
			if( pm.ToggleMiningStone )
			     typeentry = 6179;
			if( pm.ToggleMiningGem )
			     typeentry = 1112239;
			if( !pm.ToggleMiningStone && !pm.ToggleMiningGem)
			     typeentry = 6178;
			     
			ContextMenuEntry miningEntry = new ContextMenuEntry( typeentry );
			miningEntry.Color = 0x421F;
			list.Add( miningEntry );

			list.Add( new ToggleMiningStoneEntry( pm, false, false, 6176 ) );
			list.Add( new ToggleMiningStoneEntry( pm, true, false, 6177 ) );
			list.Add( new ToggleMiningStoneEntry( pm, false, true, 1112237 ) );
		}

        public override bool OnDroppedOnto(Mobile from, Item target)
        {
            if (target == from.Backpack)
            {
                Item item = from.Backpack.FindItemByType(typeof(GoldLedger));

                if (item != null)
                {
                    from.SendMessage(2125, "You can only carry one gold ledger!");
                    return false;
                }
            }

            else if (target.IsChildOf(from.Backpack))
            {
                Item item = from.Backpack.FindItemByType(typeof(GoldLedger));

                if (item != null)
                {
                    from.SendMessage(2125, "You can only carry one gold ledger!");
                    return false;
                }
            }

            return target.OnDragDrop(from, this);
        }

        public override void OnSubItemAdded(Item item)
        {
            if (AccessLevel < AccessLevel.GameMaster && item.IsChildOf(this.Backpack))
            {
                int maxWeight = WeightOverloading.GetMaxWeight(this);
                int curWeight = Mobile.BodyWeight + this.TotalWeight;

                if (curWeight > maxWeight)
                    this.SendLocalizedMessage(1019035, true, String.Format(" : {0} / {1}", curWeight, maxWeight));
            }
        }

		public static EnhanceResult Invoke( Mobile from, CraftSystem craftSystem, BaseTool tool, Item item, CraftResource resource, Type resType, ref object resMessage )
		{
			if ( item == null )
				return EnhanceResult.BadItem;

			if ( !item.IsChildOf( from.Backpack ) )
				return EnhanceResult.NotInBackpack;

			if ( !(item is BaseArmor) && !(item is BaseWeapon) )
				return EnhanceResult.BadItem;

			if ( CraftResources.IsStandard( resource ) )
				return EnhanceResult.BadResource;

			CraftItem craftItem = craftSystem.CraftItems.SearchFor( item.GetType() );

			if ( craftItem == null || craftItem.Ressources.Count == 0 )
				return EnhanceResult.BadItem;

			int quality = 0;
			bool allRequiredSkills = false;

			if ( !craftItem.CheckSkills( from, resType, craftSystem, ref quality, ref allRequiredSkills, false ) )
				return EnhanceResult.NoSkill;

			CraftResourceInfo info = CraftResources.GetInfo( resource );

			if ( info == null || info.ResourceTypes.Length == 0 )
				return EnhanceResult.BadResource;

			CraftAttributeInfo attributes = info.AttributeInfo;

			if ( attributes == null )
				return EnhanceResult.BadResource;

			int resHue = 0, maxAmount = 0;

			if ( !craftItem.ConsumeRes( from, resType, craftSystem, ref resHue, ref maxAmount, ConsumeType.None, ref resMessage ) )
				return EnhanceResult.NoResources;

			if ( craftSystem is DefBlacksmithy )
			{
				AncientSmithyHammer hammer = from.FindItemOnLayer( Layer.OneHanded ) as AncientSmithyHammer;
				if ( hammer != null )
				{
					hammer.UsesRemaining--;
					if ( hammer.UsesRemaining < 1 )
						hammer.Delete();
				}
			}

			int phys = 0, fire = 0, cold = 0, pois = 0, nrgy = 0;
			int dura = 0, luck = 0, lreq = 0, dinc = 0;
			int baseChance = 0;

			bool physBonus = false;
			bool fireBonus = false;
			bool coldBonus = false;
			bool nrgyBonus = false;
			bool poisBonus = false;
			bool duraBonus = false;
			bool luckBonus = false;
			bool lreqBonus = false;
			bool dincBonus = false;

			if ( item is BaseWeapon )
			{
				BaseWeapon weapon = (BaseWeapon)item;

				if ( !CraftResources.IsStandard( weapon.Resource ) )
					return EnhanceResult.AlreadyEnhanced;

				baseChance = 20;

				dura = weapon.MaxHitPoints;
				luck = weapon.Attributes.Luck;
				lreq = weapon.WeaponAttributes.LowerStatReq;
				dinc = weapon.Attributes.WeaponDamage;

				fireBonus = ( attributes.WeaponFireDamage > 0 );
				coldBonus = ( attributes.WeaponColdDamage > 0 );
				nrgyBonus = ( attributes.WeaponEnergyDamage > 0 );
				poisBonus = ( attributes.WeaponPoisonDamage > 0 );

				duraBonus = ( attributes.WeaponDurability > 0 );
				luckBonus = ( attributes.WeaponLuck > 0 );
				lreqBonus = ( attributes.WeaponLowerRequirements > 0 );
				dincBonus = ( dinc > 0 );
			}
			else
			{
				BaseArmor armor = (BaseArmor)item;

				if ( !CraftResources.IsStandard( armor.Resource ) )
					return EnhanceResult.AlreadyEnhanced;

				baseChance = 20;

				phys = armor.PhysicalResistance;
				fire = armor.FireResistance;
//.........这里部分代码省略.........

        public static EnhanceResult Invoke( Mobile from, CraftSystem craftSystem, BaseTool tool, Item item, CraftResource resource, Type resType, ref object resMessage )
        {
            if ( item == null )
                return EnhanceResult.BadItem;

            if ( !item.IsChildOf( from.Backpack ) )
                return EnhanceResult.NotInBackpack;

            if ( !( item is BaseArmor ) && !( item is BaseWeapon ) )
                return EnhanceResult.BadItem;

            if ( CraftResources.IsStandard( resource ) )
                return EnhanceResult.BadResource;

            CraftItem craftItem;

            if ( m_CheckForSubclass.Contains( item.GetType() ) )
                craftItem = craftSystem.CraftItems.SearchForSubclass( item.GetType() );
            else
                craftItem = craftSystem.CraftItems.SearchFor( item.GetType() );

            if ( craftItem == null || craftItem.Ressources.Count == 0 || craftItem.ForceCannotEnhance )
                return EnhanceResult.BadItem;

            if ( CraftableArtifacts.IsCraftableArtifact( item ) )
                return EnhanceResult.BadItem;

            bool exceptional = false;
            bool allRequiredSkills = false;

            if ( !craftItem.CheckSkills( from, resType, craftSystem, ref exceptional, ref allRequiredSkills, false ) )
                return EnhanceResult.NoSkill;

            CraftResourceInfo info = CraftResources.GetInfo( resource );

            if ( info == null || info.ResourceTypes.Length == 0 )
                return EnhanceResult.BadResource;

            CraftAttributeInfo attributes = info.AttributeInfo;

            if ( attributes == null )
                return EnhanceResult.BadResource;

            int resHue = 0, maxAmount = 0;

            if ( !craftItem.ConsumeRes( from, resType, craftSystem, ref resHue, ref maxAmount, ConsumeType.None, ref resMessage ) )
                return EnhanceResult.NoResources;

            AncientSmithyHammer hammer = from.FindItemOnLayer( Layer.OneHanded ) as AncientSmithyHammer;

            if ( hammer != null )
            {
                if ( !( tool != null && ( tool is SewingKit || tool is RunicSewingKit ) ) )
                {
                    hammer.UsesRemaining--;

                    if ( hammer.UsesRemaining < 1 )
                        hammer.Delete();
                }
            }

            int phys = 0, fire = 0, cold = 0, pois = 0, nrgy = 0;
            int dura = 0, luck = 0, lreq = 0, dinc = 0;
            int baseChance = 0;

            bool physBonus = false;
            bool fireBonus = false;
            bool coldBonus = false;
            bool nrgyBonus = false;
            bool poisBonus = false;
            bool duraBonus = false;
            bool luckBonus = false;
            bool lreqBonus = false;
            bool dincBonus = false;

            if ( item is BaseWeapon )
            {
                BaseWeapon weapon = (BaseWeapon) item;

                if ( !CraftResources.IsStandard( weapon.Resource ) )
                    return EnhanceResult.AlreadyEnhanced;

                baseChance = 20;

                dura = weapon.MaxHitPoints;
                luck = weapon.Attributes.Luck;
                lreq = weapon.WeaponAttributes.LowerStatReq;
                dinc = weapon.Attributes.WeaponDamage;

                fireBonus = ( attributes.WeaponFireDamage > 0 );
                coldBonus = ( attributes.WeaponColdDamage > 0 );
                nrgyBonus = ( attributes.WeaponEnergyDamage > 0 );
                poisBonus = ( attributes.WeaponPoisonDamage > 0 );

                duraBonus = ( attributes.WeaponDurability > 0 );
                luckBonus = ( attributes.WeaponLuck > 0 );
                lreqBonus = ( attributes.WeaponLowerRequirements > 0 );
                dincBonus = ( dinc > 0 );
            }
            else
//.........这里部分代码省略.........

		public static bool TryPlace(Mobile from, int boardsRequired, int ingotsRequired, Item tool)
		{
			bool bReturn = false;

			if (tool.IsChildOf(from.Backpack) || tool.Parent == from)
			{
				PlayerMobile pm = from as PlayerMobile;

				if (pm != null)
				{
					Point3D targetPoint = from.Location;
					CustomRegion cr = CustomRegion.FindDRDTRegion(from.Map, targetPoint);
					if (cr is TownshipRegion)
					{
						TownshipRegion tsr = cr as TownshipRegion;
						if (tsr != null && tsr.TStone != null && tsr.TStone.Guild != null &&
							tsr.TStone.Guild == from.Guild)
						{
							//for Adam, check for 100% ownership
							if (1.0 == TownshipDeed.GetPercentageOfGuildedHousesInArea(tsr.TStone.TownshipCenter, tsr.TStone.Map, tsr.TStone.Extended ? TownshipStone.EXTENDED_RADIUS : TownshipStone.INITIAL_RADIUS, tsr.TStone.Guild, false))
							{
								//make sure we're not in a house, or right beside it
								BaseHouse house = null;
								bool bHouseRestriction = false;

								//find all the houses within 5 tiles of this location
								int radius = 5;
								Dictionary<BaseHouse, int> houseDict = new Dictionary<BaseHouse, int>();

								for (int i = radius * -1; i <= radius && house == null; i++)
								{
									for (int j = radius * -1; j <= radius && house == null; j++)
									{
										Point3D currentCheck = new Point3D(targetPoint.X + i, targetPoint.Y + j, targetPoint.Z);
										house = BaseHouse.FindHouseAt(currentCheck, from.Map, 16);
										if (house != null)
										{
											int distance = (int)Math.Sqrt(sqr(currentCheck.X - targetPoint.X) + sqr(currentCheck.Y - targetPoint.Y));
											if (houseDict.ContainsKey(house))
											{
												int saveddistance = houseDict[house];
												if (saveddistance > distance)
												{
													houseDict[house] = distance;
												}
											}
											else
											{
												houseDict.Add(house, distance);
											}
										}
									}
								}

								//now we have a list of all houses within the radius from the point where the wall is to be built and their distance from the point
								foreach (BaseHouse h in houseDict.Keys)
								{
									if (h.Owner != null)
									{
										if (tsr.TStone.Guild.IsMember(h.Owner) == false && houseDict[h] <= 5.0)
										{
											bHouseRestriction = true;
											break;
										}
//										else if (houseDict[h] <= 1.0)
//										{
//											bHouseRestriction = true;
//											break;
//										}
									}
								}

								if (bHouseRestriction == false)
								{
									//next check for teleporters
									bool bTeleporterRestriction = false;
									int iTeleporterDistanceRange = TownshipSettings.WallTeleporterDistance;

									IPooledEnumerable itemlist = from.Map.GetItemsInRange(targetPoint, iTeleporterDistanceRange);
									foreach (Item item in itemlist)
									{
										if (item is Teleporter)
										{
											bTeleporterRestriction = true;
											break;
										}
									}
									itemlist.Free();


									if (bTeleporterRestriction == false)
									{
										bool hasResources = false;
										Item[] boards = from.Backpack.FindItemsByType(typeof(Board), true);
										Item[] ingots = from.Backpack.FindItemsByType(typeof(IronIngot), true);

										int boardCount = 0;
										int ingotCount = 0;
										for (int i = 0; i < boards.Length; i++)
										{
//.........这里部分代码省略.........

        public void TryAddEntry(Item item, Mobile from)
        {
            if (!CanUse(from) || item == null)
                return;

            if (!CheckRange(from))
                from.SendLocalizedMessage(3000268); // that is too far away.
            else if (!(item is TreasureMap || item is SOS || item is MessageInABottle))
                from.SendLocalizedMessage(1153564); // That is not a treasure map or message in a bottle.
            else if (!item.IsChildOf(from.Backpack))
                from.SendLocalizedMessage(1054107); // This item must be in your backpack.
            else if (m_Entries.Count >= 500)
                from.SendLocalizedMessage(1153565); // The locker is full
            else
            {
                DaviesLockerEntry entry = null;

                if (item is TreasureMap)
                    entry = new TreasureMapEntry((TreasureMap)item);
                else if (item is SOS)
                    entry = new SOSEntry((SOS)item);
                else if (item is MessageInABottle)
                    entry = new SOSEntry((MessageInABottle)item);

                if (entry != null)
                {
                    m_Entries.Add(entry);
                    from.CloseGump(typeof(DaviesLockerGump));
                    from.SendGump(new DaviesLockerGump(from, this));

                    item.Delete();

                    InvalidateProperties();
                }
            }
        }

		public static bool CanUse( Mobile from, Item toUse )
		{
			if( from == null || toUse == null )
				return false;

			if( from.Frozen )
				from.SendAsciiMessage( "You are frozen and you cannot do that." );
			else if( !toUse.Movable )
				from.SendAsciiMessage( "You can't use that." );
			else if( !toUse.IsChildOf( from.Backpack ) && toUse.Parent != from && !from.InRange( toUse.Location, 4 ) && !toUse.IsChildOf( from.BankBox ) && !from.BankBox.Opened )
				from.SendAsciiMessage( "You can't reach that." );
			else if( !from.InLOS( toUse ) && !toUse.IsChildOf( from.BankBox ) && !from.BankBox.Opened )
				from.SendAsciiMessage( "You can't see that." );
			else
				return toUse.CanEquip( from );

			return false;
		}

        public static EnhanceResult Invoke( Mobile from, CraftSystem craftSystem, BaseTool tool, Item item, CraftResource resource, Type resType, ref object resMessage )
        {
            if ( item == null )
                return EnhanceResult.BadItem;

            if ( !item.IsChildOf( from.Backpack ) )
                return EnhanceResult.NotInBackpack;

            if ( !(item is BaseArmor) && !(item is BaseWeapon) && !(item is BaseOtherEquipable) )
                return EnhanceResult.BadItem;

            if ( item is IArcaneEquip )
            {
                IArcaneEquip eq = (IArcaneEquip)item;
                if ( eq.IsArcane )
                    return EnhanceResult.BadItem;
            }

            if ( CraftResources.IsStandard( resource ) )
                return EnhanceResult.BadResource;

            int num = craftSystem.CanCraft( from, tool, item.GetType() );

            if ( num > 0 )
            {
                resMessage = num;
                return EnhanceResult.None;
            }

            CraftItem craftItem = craftSystem.CraftItems.SearchFor( item.GetType() );

            if ( craftItem == null || craftItem.Resources.Count == 0 )
                return EnhanceResult.BadItem;

            bool allRequiredSkills = false;
            if( craftItem.GetSuccessChance( from, resType, craftSystem, false, ref allRequiredSkills ) <= 0.0 )
                return EnhanceResult.NoSkill;

            CraftResourceInfo info = CraftResources.GetInfo( resource );

            if ( info == null || info.ResourceTypes.Length == 0 )
                return EnhanceResult.BadResource;

            CraftAttributeInfo attributes = info.AttributeInfo;

            if ( attributes == null )
                return EnhanceResult.BadResource;

            int resHue = 0, maxAmount = 0;

            if ( !craftItem.ConsumeRes( from, resType, craftSystem, ref resHue, ref maxAmount, ConsumeType.None, ref resMessage ) )
                return EnhanceResult.NoResources;

            if ( craftSystem is DefBlacksmithy )
            {
                AncientSmithyHammer hammer = from.FindItemOnLayer( Layer.OneHanded ) as AncientSmithyHammer;
                if ( hammer != null )
                {
                    hammer.UsesRemaining--;
                    if ( hammer.UsesRemaining < 1 )
                        hammer.Delete();
                }
            }

            int baseChance = 0;

            BonusAttribute[] bonusAttrs = null;
            BonusAttribute[] randomAttrs = null;

            if ( item is BaseWeapon )
            {
                BaseWeapon weapon = (BaseWeapon)item;

                if ( !CraftResources.IsStandard( weapon.Resource ) )
                    return EnhanceResult.AlreadyEnhanced;

                baseChance = 18; // Silver: used to be 20

                CheckSkill( ref baseChance, from, craftSystem );

                int numOfRand = attributes.RandomAttributeCount;

                bonusAttrs = attributes.WeaponAttributes;
                randomAttrs = BonusAttributesHelper.GetRandomAttributes( attributes.WeaponRandomAttributes, numOfRand );
            }
            else if ( item is BaseArmor )
            {
                BaseArmor armor = (BaseArmor)item;

                if ( !CraftResources.IsStandard( armor.Resource ) )
                    return EnhanceResult.AlreadyEnhanced;

                baseChance = 18; // Silver: used to be 20

                CheckSkill( ref baseChance, from, craftSystem );

                int numOfRand = attributes.RandomAttributeCount;

                if ( armor.UsesShieldAttrs )
                {
//.........这里部分代码省略.........