6 files changed, 260 insertions, 1 deletions

diff --git a/src/Frontend.cpp b/src/Frontend.cpp
index a96b6623..e1738172 100644
--- a/src/Frontend.cpp
+++ b/src/Frontend.cpp
@@ -3,6 +3,7 @@
 #include "Frontend.h"
 
 int &CMenuManager::m_PrefsBrightness = *(int*)0x5F2E50;
+int &CMenuManager::m_PrefsLanguage = *(int*)0x941238;
 CMenuManager &FrontEndMenuManager = *(CMenuManager*)0x8F59D8;
 
 WRAPPER void CMenuManager::DrawFrontEnd(void) { EAXJMP(0x47A540); }
diff --git a/src/Frontend.h b/src/Frontend.h
index 3d7b6914..838139df 100644
--- a/src/Frontend.h
+++ b/src/Frontend.h
@@ -2,6 +2,14 @@
 
 #include "Sprite2d.h"
 
+enum {
+	LANGUAGE_AMERICAN,
+	LANGUAGE_FRENCH,
+	LANGUAGE_GERMAN,
+	LANGUAGE_ITALIAN,
+	LANGUAGE_SPANISH,
+};
+
 struct tSkinInfo
 {
 	int field_0;
@@ -11,7 +19,6 @@ struct tSkinInfo
 	int field_304;
 };
 
-
 class CMenuManager
 {
 public:
@@ -77,6 +84,7 @@ public:
 	int m_nScreenChangeDelayTimer;
 
 	static int &m_PrefsBrightness;
+	static int &m_PrefsLanguage;
 
 	void DrawFrontEnd(void);
 };
diff --git a/src/Messages.cpp b/src/Messages.cpp
index 6754c9ae..e29300f4 100644
--- a/src/Messages.cpp
+++ b/src/Messages.cpp
@@ -3,3 +3,4 @@
 #include "Messages.h"
 
 WRAPPER void CMessages::Display(void) { EAXJMP(0x529800); }
+WRAPPER void CMessages::ClearAllMessagesDisplayedByGame(void) { EAXJMP(0x52B670); }
diff --git a/src/Messages.h b/src/Messages.h
index f7f90087..711427f1 100644
--- a/src/Messages.h
+++ b/src/Messages.h
@@ -4,4 +4,5 @@ class CMessages
 {
 public:
 	static void Display(void);
+	static void ClearAllMessagesDisplayedByGame(void);
 };
diff --git a/src/Text.cpp b/src/Text.cpp
new file mode 100644
index 00000000..0281043d
--- /dev/null
+++ b/src/Text.cpp
@@ -0,0 +1,201 @@
+#include "common.h"
+#include "patcher.h"
+#include "FileMgr.h"
+#include "Frontend.h"
+#include "Messages.h"
+#include "Text.h"
+
+static wchar_t WideErrorString[25];
+
+CText &TheText = *(CText*)0x941520;
+
+CText::CText(void)
+{
+	keyArray.entries = nil;
+	keyArray.numEntries = 0;
+	data.chars = nil;
+	data.numChars = 0;
+	unknown = 101;	// What's this? version number?
+	memset(WideErrorString, 0, sizeof(WideErrorString));
+}
+
+CText::~CText(void)
+{
+	data.Unload();
+	keyArray.Unload();
+}
+
+void
+CText::Load(void)
+{
+	uint8 *filedata;
+	char filename[32], type[4];
+	int length;
+	int offset, sectlen;
+
+	Unload();
+	filedata = new uint8[0x40000];
+
+	CFileMgr::SetDir("TEXT");
+	switch(CMenuManager::m_PrefsLanguage){
+	case LANGUAGE_AMERICAN:
+		sprintf(filename, "AMERICAN.GXT");
+		break;
+	case LANGUAGE_FRENCH:
+		sprintf(filename, "FRENCH.GXT");
+		break;
+	case LANGUAGE_GERMAN:
+		sprintf(filename, "GERMAN.GXT");
+		break;
+	case LANGUAGE_ITALIAN:
+		sprintf(filename, "ITALIAN.GXT");
+		break;
+	case LANGUAGE_SPANISH:
+		sprintf(filename, "SPANISH.GXT");
+		break;
+	}
+
+	length = CFileMgr::LoadFile(filename, filedata, 0x40000, "rb");
+	CFileMgr::SetDir("");
+
+	offset = 0;
+	while(offset < length){
+		type[0] = filedata[offset++];
+		type[1] = filedata[offset++];
+		type[2] = filedata[offset++];
+		type[3] = filedata[offset++];
+		sectlen = (int)filedata[offset+3]<<24 | (int)filedata[offset+2]<<16 |
+			(int)filedata[offset+1]<<8 | (int)filedata[offset+0];
+		offset += 4;
+		if(sectlen != 0){
+			if(strncmp(type, "TKEY", 4) == 0)
+				keyArray.Load(sectlen, filedata, &offset);
+			else if(strncmp(type, "TDAT", 4) == 0)
+				data.Load(sectlen, filedata, &offset);
+			else
+				offset += sectlen;
+		}
+	}
+
+	keyArray.Update(data.chars);
+
+	delete[] filedata;
+}
+
+void
+CText::Unload(void)
+{
+	CMessages::ClearAllMessagesDisplayedByGame();
+	data.Unload();
+	keyArray.Unload();
+}
+
+wchar_t*
+CText::Get(const char *key)
+{
+	return keyArray.Search(key);
+}
+
+void
+CKeyArray::Load(uint32 length, uint8 *data, int *offset)
+{
+	uint32 i;
+	uint8 *rawbytes;
+
+	numEntries = length / sizeof(CKeyEntry);
+	entries = new CKeyEntry[numEntries];
+	rawbytes = (uint8*)entries;
+
+	for(i = 0; i < length; i++)
+		rawbytes[i] = data[(*offset)++];
+}
+
+void
+CKeyArray::Unload(void)
+{
+	delete[] entries;
+	entries = nil;
+	numEntries = 0;
+}
+
+void
+CKeyArray::Update(wchar_t *chars)
+{
+	int i;
+	for(i = 0; i < numEntries; i++)
+		entries[i].value = (wchar_t*)((uint8*)chars + (uintptr)entries[i].value);
+}
+
+CKeyEntry*
+CKeyArray::BinarySearch(const char *key, CKeyEntry *entries, int16 low, int16 high)
+{
+	int mid;
+	int diff;
+
+	if(low > high)
+		return nil;
+
+	mid = (low + high)/2;
+	diff = strcmp(key, entries[mid].key);
+	if(diff == 0)
+		return &entries[mid];
+	if(diff < 0)
+		return BinarySearch(key, entries, low, mid-1);
+	if(diff > 0)
+		return BinarySearch(key, entries, mid+1, high);
+	return nil;
+}
+
+wchar_t*
+CKeyArray::Search(const char *key)
+{
+	CKeyEntry *found;
+	char errstr[25];
+	int i;
+
+	found = BinarySearch(key, entries, 0, numEntries-1);
+	if(found)
+		return found->value;
+	sprintf(errstr, "%s missing", key);
+	for(i = 0; i < 25; i++)
+		WideErrorString[i] = errstr[i];
+	return WideErrorString;
+}
+
+
+void
+CData::Load(uint32 length, uint8 *data, int *offset)
+{
+	uint32 i;
+	uint8 *rawbytes;
+
+	numChars = length / sizeof(wchar_t);
+	chars = new wchar_t[numChars];
+	rawbytes = (uint8*)chars;
+
+	for(i = 0; i < length; i++)
+		rawbytes[i] = data[(*offset)++];
+}
+
+void
+CData::Unload(void)
+{
+	delete[] chars;
+	chars = nil;
+	numChars = 0;
+}
+
+STARTPATCHES
+	InjectHook(0x52C3C0, &CText::Load, PATCH_JUMP);
+	InjectHook(0x52C580, &CText::Unload, PATCH_JUMP);
+	InjectHook(0x52C5A0, &CText::Get, PATCH_JUMP);
+
+	InjectHook(0x52BE70, &CKeyArray::Load, PATCH_JUMP);
+	InjectHook(0x52BF60, &CKeyArray::Unload, PATCH_JUMP);
+	InjectHook(0x52BF80, &CKeyArray::Update, PATCH_JUMP);
+	InjectHook(0x52C060, &CKeyArray::BinarySearch, PATCH_JUMP);
+	InjectHook(0x52BFB0, &CKeyArray::Search, PATCH_JUMP);
+
+	InjectHook(0x52C120, &CData::Load, PATCH_JUMP);
+	InjectHook(0x52C200, &CData::Unload, PATCH_JUMP);
+ENDPATCHES
diff --git a/src/Text.h b/src/Text.h
new file mode 100644
index 00000000..c8d4e8b7
--- /dev/null
+++ b/src/Text.h
@@ -0,0 +1,47 @@
+#pragma once
+
+struct CKeyEntry
+{
+	wchar_t *value;
+	char key[8];
+};
+// If this fails, CKeyArray::Load will have to be fixed
+static_assert(sizeof(CKeyEntry) == 12, "CKeyEntry: error");
+
+class CKeyArray
+{
+public:
+	CKeyEntry *entries;
+	int numEntries;
+
+	void Load(uint32 length, uint8 *data, int *offset);
+	void Unload(void);
+	void Update(wchar_t *chars);
+	CKeyEntry *BinarySearch(const char *key, CKeyEntry *entries, int16 low, int16 high);
+	wchar_t *Search(const char *key);
+};
+
+class CData
+{
+public:
+	wchar_t *chars;
+	int numChars;
+
+	void Load(uint32 length, uint8 *data, int *offset);
+	void Unload(void);
+};
+
+class CText
+{
+	CKeyArray keyArray;
+	CData data;
+	int8 unknown;
+public:
+	CText(void);
+	~CText(void);
+	void Load(void);
+	void Unload(void);
+	wchar_t *Get(const char *key);
+};
+
+extern CText &TheText;