Now the actual code changes - lol

common/eq_packet_structs.h

@@ -2495,6 +2495,7 @@ struct BookRequest_Struct {
 	uint8 window;	// where to display the text (0xFF means new window)
 	uint8 type;		//type: 0=scroll, 1=book, 2=item info.. prolly others.
 	uint32 invslot;	// Only used in Sof and later clients;
+	int16 subslot; // The subslot inside of a bag if it is inside one.
 	char txtfile[20];
 };
 

common/patches/rof2.cpp

@@ -5154,6 +5154,7 @@ namespace RoF2
 
 		IN(type);
 		IN(invslot);
+		IN(subslot);
 		emu->window = (uint8)eq->window;
 		strn0cpy(emu->txtfile, eq->txtfile, sizeof(emu->txtfile));
 

common/patches/rof2_structs.h

@@ -2826,7 +2826,8 @@ struct BookText_Struct {
 struct BookRequest_Struct {
 /*0000*/	uint32 window;		// where to display the text (0xFFFFFFFF means new window).
 /*0004*/	uint16 invslot;		// Is the slot, but the RoF2 conversion causes it to fail.  Turned to 0 since it isnt required anyway.
-/*0008*/	uint32 unknown006;	// Seen FFFFFFFF
+/*0006*/	int16 subslot;		// Inventory sub-slot (0-x)
+/*0008*/	uint16 unknown006;	// Seen FFFF
 /*0010*/	uint16 unknown008;	// seen 0000
 /*0012*/	uint32 type;		// 0 = Scroll, 1 = Book, 2 = Item Info. Possibly others
 /*0016*/	uint32 unknown0012;

common/shareddb.cpp

@@ -1136,13 +1136,13 @@ const EQEmu::ItemData* SharedDatabase::IterateItems(uint32* id) {
 	return nullptr;
 }
 
-std::string SharedDatabase::GetBook(const char *txtfile)
+std::string SharedDatabase::GetBook(const char *txtfile, int16 *language)
 {
 	char txtfile2[20];
 	std::string txtout;
 	strcpy(txtfile2, txtfile);
 
-	std::string query = StringFormat("SELECT txtfile FROM books WHERE name = '%s'", txtfile2);
+	std::string query = StringFormat("SELECT txtfile, language FROM books WHERE name = '%s'", txtfile2);
 	auto results = QueryDatabase(query);
 	if (!results.Success()) {
 		txtout.assign(" ",1);
@@ -1157,6 +1157,7 @@ std::string SharedDatabase::GetBook(const char *txtfile)
 
     auto row = results.begin();
     txtout.assign(row[0],strlen(row[0]));
+    *language = static_cast<int16>(atoi(row[1]));
 
     return txtout;
 }

common/shareddb.h

@@ -94,7 +94,7 @@ class SharedDatabase : public Database
 		bool	SetStartingItems(PlayerProfile_Struct* pp, EQEmu::InventoryProfile* inv, uint32 si_race, uint32 si_class, uint32 si_deity, uint32 si_current_zone, char* si_name, int admin);
 
 
-		std::string	GetBook(const char *txtfile);
+		std::string	GetBook(const char *txtfile, int16 *language);
 
 		/*
 		    Item Methods

utils/sql/db_update_manifest.txt

@@ -355,6 +355,7 @@
 9099|2016_08_27_ip_exemptions.sql|SHOW TABLES LIKE 'ip_exemptions'|empty|
 9100|2016_08_27_object_display_name.sql|SHOW COLUMNS FROM `object` LIKE 'display_name'|empty|
 9101|2016_12_01_pcnpc_only.sql|SHOW COLUMNS FROM `spells_new` LIKE 'pcnpc_only_flag'|empty|
+9102|2017_01_10_book_languages.sql|SHOW COLUMNS FROM `books` LIKE 'language'|empty|
 
 # Upgrade conditions:
 # 	This won't be needed after this system is implemented, but it is used database that are not

zone/client.cpp

@@ -33,6 +33,7 @@ extern volatile bool RunLoops;
 
 #include "../common/eqemu_logsys.h"
 #include "../common/features.h"
+#include "../common/emu_legacy.h"
 #include "../common/spdat.h"
 #include "../common/guilds.h"
 #include "../common/rulesys.h"
@@ -1998,6 +1999,7 @@ void Client::SetGM(bool toggle) {
 }
 
 void Client::ReadBook(BookRequest_Struct *book) {
+	int16 book_language=0;
 	char *txtfile = book->txtfile;
 
 	if(txtfile[0] == '0' && txtfile[1] == '\0') {
@@ -2005,7 +2007,7 @@ void Client::ReadBook(BookRequest_Struct *book) {
 		return;
 	}
 
-	std::string booktxt2 = database.GetBook(txtfile);
+	std::string booktxt2 = database.GetBook(txtfile, &book_language);
 	int length = booktxt2.length();
 
 	if (booktxt2[0] != '\0') {
@@ -2016,21 +2018,47 @@ void Client::ReadBook(BookRequest_Struct *book) {
 
 		BookText_Struct *out = (BookText_Struct *) outapp->pBuffer;
 		out->window = book->window;
-		if (ClientVersion() >= EQEmu::versions::ClientVersion::SoF)
+
-		{
+
-			const EQEmu::ItemInstance *inst = m_inv[book->invslot];
+		if (ClientVersion() >= EQEmu::versions::ClientVersion::SoF) {
+			// Find out what slot the book was read from.
+			// SoF+ need to look up book type for the output message.
+			int16	read_from_slot;
+
+			if (book->subslot >= 0) {
+				uint16 offset;
+				offset = (book->invslot-23) * 10;	// How many packs to skip.
+				read_from_slot = 251 + offset + book->subslot;
+			}
+			else {
+				read_from_slot = book->invslot -1;
+			}
+
+			const EQEmu::ItemInstance *inst = 0;
+
+			if (read_from_slot <= EQEmu::legacy::SLOT_PERSONAL_BAGS_END)
+				{
+				inst = m_inv[read_from_slot];
+				}
+
 			if(inst)
 				out->type = inst->GetItem()->Book;
 			else
 				out->type = book->type;
 		}
-		else
+		else {
-		{
 			out->type = book->type;
 		}
 		out->invslot = book->invslot;
+
 		memcpy(out->booktext, booktxt2.c_str(), length);
 
+		if (book_language > 0 && book_language < MAX_PP_LANGUAGE) {
+			if (m_pp.languages[book_language] < 100) {
+				GarbleMessage(out->booktext, (100 - m_pp.languages[book_language]));
+			}
+		}
+
 		QueuePacket(outapp);
 		safe_delete(outapp);
 	}