4 files changed, 108 insertions, 2 deletions

diff --git a/src/WorldStorage/EnchantmentSerializer.cpp b/src/WorldStorage/EnchantmentSerializer.cpp
new file mode 100644
index 000000000..a481f1682
--- /dev/null
+++ b/src/WorldStorage/EnchantmentSerializer.cpp
@@ -0,0 +1,87 @@
+
+#include "Globals.h"
+
+#include "EnchantmentSerializer.h"
+#include "FastNBT.h"
+
+void cEnchantmentSerializer::WriteToNBTCompound(cEnchantments const& a_Enchantments, cFastNBTWriter & a_Writer, const AString & a_ListTagName)
+{
+	// Write the enchantments into the specified NBT writer
+	// begin with the LIST tag of the specified name ("ench" or "StoredEnchantments")
+	
+	a_Writer.BeginList(a_ListTagName, TAG_Compound);
+	for (cEnchantments::cMap::const_iterator itr = a_Enchantments.m_Enchantments.begin(), end = a_Enchantments.m_Enchantments.end(); itr != end; ++itr)
+	{
+		a_Writer.BeginCompound("");
+			a_Writer.AddShort("id",  itr->first);
+			a_Writer.AddShort("lvl", itr->second);
+		a_Writer.EndCompound();
+	}  // for itr - m_Enchantments[]
+	a_Writer.EndList();
+}
+
+
+
+
+
+void cEnchantmentSerializer::ParseFromNBT(cEnchantments& a_Enchantments, const cParsedNBT & a_NBT, int a_EnchListTagIdx)
+{
+	// Read the enchantments from the specified NBT list tag (ench or StoredEnchantments)
+
+	// Verify that the tag is a list:
+	if (a_NBT.GetType(a_EnchListTagIdx) != TAG_List)
+	{
+		LOGWARNING("%s: Invalid EnchListTag type: exp %d, got %d. Enchantments not parsed",
+			__FUNCTION__, TAG_List, a_NBT.GetType(a_EnchListTagIdx)
+		);
+		ASSERT(!"Bad EnchListTag type");
+		return;
+	}
+	
+	// Verify that the list is of Compounds:
+	if (a_NBT.GetChildrenType(a_EnchListTagIdx) != TAG_Compound)
+	{
+		LOGWARNING("%s: Invalid NBT list children type: exp %d, got %d. Enchantments not parsed",
+			__FUNCTION__, TAG_Compound, a_NBT.GetChildrenType(a_EnchListTagIdx)
+		);
+		ASSERT(!"Bad EnchListTag children type");
+		return;
+	}
+	
+	a_Enchantments.Clear();
+	
+	// Iterate over all the compound children, parse an enchantment from each:
+	for (int tag = a_NBT.GetFirstChild(a_EnchListTagIdx); tag >= 0; tag = a_NBT.GetNextSibling(tag))
+	{
+		// tag is the compound inside the "ench" list tag
+		ASSERT(a_NBT.GetType(tag) == TAG_Compound);
+		
+		// Search for the id and lvl tags' values:
+		int id = -1, lvl = -1;
+		for (int ch = a_NBT.GetFirstChild(tag); ch >= 0; ch = a_NBT.GetNextSibling(ch))
+		{
+			if (a_NBT.GetType(ch) != TAG_Short)
+			{
+				continue;
+			}
+			if (a_NBT.GetName(ch) == "id")
+			{
+				id = a_NBT.GetShort(ch);
+			}
+			else if (a_NBT.GetName(ch) == "lvl")
+			{
+				lvl = a_NBT.GetShort(ch);
+			}
+		}  // for ch - children of the compound tag
+		
+		if ((id == -1) || (lvl <= 0))
+		{
+			// Failed to parse either the id or the lvl, skip this compound
+			continue;
+		}
+		
+		// Store the enchantment:
+		a_Enchantments.m_Enchantments[id] = lvl;
+	}  // for tag - children of the ench list tag
+}
+
diff --git a/src/WorldStorage/EnchantmentSerializer.h b/src/WorldStorage/EnchantmentSerializer.h
new file mode 100644
index 000000000..d616b0f62
--- /dev/null
+++ b/src/WorldStorage/EnchantmentSerializer.h
@@ -0,0 +1,17 @@
+
+#pragma once
+
+#include "Enchantments.h"
+
+class cEnchantmentSerializer
+{
+
+public:
+
+	/// Writes the enchantments into the specified NBT writer; begins with the LIST tag of the specified name ("ench" or "StoredEnchantments")
+	static void WriteToNBTCompound(cEnchantments const& a_Enchantments, cFastNBTWriter & a_Writer, const AString & a_ListTagName);
+	
+	/// Reads the enchantments from the specified NBT list tag (ench or StoredEnchantments)
+	static void ParseFromNBT(cEnchantments& a_Enchantments, const cParsedNBT & a_NBT, int a_EnchListTagIdx);
+	
+};
diff --git a/src/WorldStorage/NBTChunkSerializer.cpp b/src/WorldStorage/NBTChunkSerializer.cpp
index e1205f2be..51e1a8d1b 100644
--- a/src/WorldStorage/NBTChunkSerializer.cpp
+++ b/src/WorldStorage/NBTChunkSerializer.cpp
@@ -4,6 +4,7 @@
 
 #include "Globals.h"
 #include "NBTChunkSerializer.h"
+#include "EnchantmentSerializer.h"
 #include "../BlockID.h"
 #include "../ItemGrid.h"
 #include "../StringCompression.h"
@@ -91,7 +92,7 @@ void cNBTChunkSerializer::AddItem(const cItem & a_Item, int a_Slot, const AStrin
 	{
 		const char * TagName = (a_Item.m_ItemType == E_ITEM_BOOK) ? "StoredEnchantments" : "ench";
 		m_Writer.BeginCompound("tag");
-			a_Item.m_Enchantments.WriteToNBTCompound(m_Writer, TagName);
+			cEnchantmentSerializer::WriteToNBTCompound(a_Item.m_Enchantments, m_Writer, TagName);
 		m_Writer.EndCompound();
 	}
 	
diff --git a/src/WorldStorage/WSSAnvil.cpp b/src/WorldStorage/WSSAnvil.cpp
index 16513cd1b..702b809fb 100644
--- a/src/WorldStorage/WSSAnvil.cpp
+++ b/src/WorldStorage/WSSAnvil.cpp
@@ -7,6 +7,7 @@
 #include "WSSAnvil.h"
 #include "NBTChunkSerializer.h"
 #include "FastNBT.h"
+#include "EnchantmentSerializer.h"
 #include "zlib/zlib.h"
 #include "../World.h"
 #include "../BlockID.h"
@@ -639,7 +640,7 @@ bool cWSSAnvil::LoadItemFromNBT(cItem & a_Item, const cParsedNBT & a_NBT, int a_
 	int EnchTag = a_NBT.FindChildByName(TagTag, EnchName);
 	if (EnchTag > 0)
 	{
-		a_Item.m_Enchantments.ParseFromNBT(a_NBT, EnchTag);
+		cEnchantmentSerializer::ParseFromNBT(a_Item.m_Enchantments, a_NBT, EnchTag);
 	}
 	
 	return true;