From 2bf6674afc6b3a243f536fb30e313b055b35d533 Mon Sep 17 00:00:00 2001
From: aap <aap@papnet.eu>
Date: Thu, 30 May 2019 23:00:00 +0200
Subject: added CText

---
 src/Text.cpp | 201 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 201 insertions(+)
 create mode 100644 src/Text.cpp

(limited to 'src/Text.cpp')

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
-- 
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