mirror of
https://gitlab.com/hashborgir/CharmZone-1.10.git
synced 2024-10-05 09:05:59 +00:00
313 lines
14 KiB
C++
313 lines
14 KiB
C++
#pragma once
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#ifndef _D2PATCH_H
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#define _D2PATCH_H
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#include "D2PatchConst.h"
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#include <iostream>
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#include <iomanip>
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#include <sstream>
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#include <windows.h>
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#include <string>
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#include <vector>
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#include <map>
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#include <fstream>
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#include <algorithm>
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#include <unordered_map>
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#include <Windows.h>
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#include <memoryapi.h>
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// Function to read setting from the INI file and provide detailed information
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int ReadSettingFromIni(const char* section, const char* key, int defaultValue) {
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// Get the file path
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const char* filePath = "./D2Mod.ini";
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// Check if the file exists and can be found
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DWORD fileAttributes = GetFileAttributesA(filePath);
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if (fileAttributes == INVALID_FILE_ATTRIBUTES) {
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MessageBoxA(NULL, "INI file not found or inaccessible.", "INI File Error", MB_OK | MB_ICONERROR);
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return defaultValue;
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}
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// Try to read the setting from the INI file
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int value = GetPrivateProfileIntA(section, key, defaultValue, filePath);
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{
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//DWORD lastError = GetLastError();
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//if (value == 0 && lastError != 0) {
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// // Error occurred while reading from INI file
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// char errorMessage[512];
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// sprintf(errorMessage, "Error reading setting from INI file:\n\n"
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// "INI File Path: %s\n"
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// "Section: %s\n"
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// "Key: %s\n"
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// "Default Value: %d\n"
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// "Error Code: %d\n\n"
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// "Ensure that the section and key exist in the INI file and the file is accessible.",
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// filePath, section, key, defaultValue, lastError);
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// MessageBoxA(NULL, errorMessage, "INI File Error", MB_OK | MB_ICONERROR);
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//}
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//else {
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// // Successfully read the setting
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// char successMessage[256];
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// sprintf(successMessage, "Setting read from INI file:\n\n"
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// "INI File Path: %s\n"
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// "Section: %s\n"
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// "Key: %s\n"
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// "Value: %d", filePath, section, key, value);
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// MessageBoxA(NULL, successMessage, "INI File Success", MB_OK | MB_ICONINFORMATION);
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//}
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}
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return value;
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}
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// Function to calculate relative offset (D2COMMON base address is 0x6F600000)
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DWORD calculateRelativeOffsetD2Common(DWORD offset) {
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return offset - 0x6F600000;
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}
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// Function to calculate relative offset (D2COMMON base address is 0x6F600000)
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DWORD calculateRelativeOffsetD2Client(DWORD offset) {
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return offset - 0x6FAA0000;
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}
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// Define settings from D2Mod.ini
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BYTE leftBorder = ReadSettingFromIni("CharmZone", "leftBorder", 0x04);
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BYTE rightBorder = ReadSettingFromIni("CharmZone", "rightBorder", 0x08);
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BYTE topBorder = ReadSettingFromIni("CharmZone", "topBorder", 0x00);
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BYTE bottomBorder = ReadSettingFromIni("CharmZone", "bottomBorder", 0x04);
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// Function to reverse the bytes of a hexadecimal number
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uint32_t reverseHexBytes(uint32_t hexNumber) {
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uint32_t reversedHex = 0;
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// Reverse the bytes
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reversedHex |= (hexNumber & 0x000000FF) << 24; // Move the last byte to the first byte
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reversedHex |= (hexNumber & 0x0000FF00) << 8; // Move the second last byte to the second byte
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reversedHex |= (hexNumber & 0x00FF0000) >> 8; // Move the second byte to the second last byte
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reversedHex |= (hexNumber & 0xFF000000) >> 24; // Move the first byte to the last byte
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return reversedHex;
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}
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/*
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CPU Disasm
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Address Hex dump Command Comments
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6F68D570 > \85C0 TEST EAX,EAX
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6F68D572 . 75 03 JNE SHORT 6F68D577
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6F68D574 . C2 0800 RETN 8 ; return FALSE if reqs are not met
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6F68D577 > 8B44E4 04 MOV EAX,DWORD PTR SS:[ESP+4] ; pItem
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6F68D57B . 8B40 2C MOV EAX,DWORD PTR DS:[EAX+2C] ; pitem->pPath
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6F68D57E . 8378 0C 05 CMP DWORD PTR DS:[EAX+0C],5 ; pPath->posX, 5 == leftBorder
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6F68D582 . 72 1A JB SHORT 6F68D59E
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6F68D584 . 8378 0C 07 CMP DWORD PTR DS:[EAX+0C],7 ; pPath->posX, 7 == rightBorder
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6F68D588 . 77 14 JA SHORT 6F68D59E
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6F68D58A . 8378 10 03 CMP DWORD PTR DS:[EAX+10],3 ; pPath->posY, 3 == topBorder
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6F68D58E . 72 0E JB SHORT 6F68D59E
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6F68D590 . 8378 10 04 CMP DWORD PTR DS:[EAX+10],4 ; pPath->posY, 4 == botomBorder
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6F68D594 . 77 08 JA SHORT 6F68D59E
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6F68D596 . B8 01000000 MOV EAX,1 ; return TRUE
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6F68D59B . C2 0800 RETN 8
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6F68D59E > 31C0 XOR EAX,EAX ; return FALSE
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6F68D5A0 . C2 0800 RETN 8
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*/
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__declspec(naked) void customD2CommonASM() {
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__asm {
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TEST EAX, EAX
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JE NOT_IN_CHARM_ZONE
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// Load parameters
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MOV EAX, DWORD PTR SS : [ESP + 0x04]
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MOV EAX, DWORD PTR DS : [EAX + 0x2C]
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// Load border values into 8-bit registers
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MOV CH, leftBorder
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MOV CL, rightBorder
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MOV DH, topBorder
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MOV DL, bottomBorder
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// Check if within charm zone boundaries
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CMP BYTE PTR DS : [EAX + 0x0C] , CH
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JB NOT_IN_CHARM_ZONE
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CMP BYTE PTR DS : [EAX + 0x0C] , CL
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JA NOT_IN_CHARM_ZONE
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CMP BYTE PTR DS : [EAX + 0x10] , DH
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JB NOT_IN_CHARM_ZONE
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CMP BYTE PTR DS : [EAX + 0x10] , DL
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JA NOT_IN_CHARM_ZONE
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// Return 1 if within charm zone
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MOV EAX, 1
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RETN 8
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// Return 0 otherwise
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NOT_IN_CHARM_ZONE :
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XOR EAX, EAX
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RETN 8
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}
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}
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/*
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6FAE118F /E9 6CB30800 JMP 6FB6C500
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6FAE1194 |90 NOP
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6FAE1195 |90 NOP
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6FAE1196 |90 NOP
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CPU Disasm
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Address Hex dump Command Comments
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6FB6C500 > \85C0 TEST EAX,EAX
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6FB6C502 .^ 0F84 7B4DF7FF JE 6FAE1283 ; item reqs not met
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6FB6C508 . 6A 0D PUSH 0D ; /Arg2 = 0D, 0xD == ITEMTYPE_CHARM
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6FB6C50A . 56 PUSH ESI ; |Arg1, pItem
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6FB6C50B . E8 10E7FFFF CALL <JMP.&D2Common.#10731> ; \D2Common.#10731, IsItemOfItemType (CALL 6FB6AC20)
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6FB6C510 . 85C0 TEST EAX,EAX
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6FB6C512 .^ 0F84 7F4CF7FF JE 6FAE1197 ; no charm, so don't continue checking the charm zone
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6FB6C518 . 8B44E4 20 MOV EAX,DWORD PTR SS:[ESP+20] ; pUnit
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6FB6C51C . 50 PUSH EAX ; /Arg2, pUnit
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6FB6C51D . 56 PUSH ESI ; |Arg1, pItem
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6FB6C51E . E8 19EFFFFF CALL <JMP.&D2Common.#10840> ; \D2Common.#10840, AreCharmReqsMet (CALL 6FB6B43C)
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6FB6C523 . 85C0 TEST EAX,EAX
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6FB6C525 .^ 0F84 584DF7FF JE 6FAE1283 ; charm reqs not met
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6FB6C52B .^ E9 674CF7FF JMP 6FAE1197 ; charm reqs met
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*/
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//D2Common.0x6FD9DCE0 (#10731)
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D2FUNC(D2COMMON, 10731, BOOL, __stdcall, (const D2UnitStrc* pItem, int nItemType), -10731)
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//D2Common.0x6FD9FE70 (#10840)
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D2FUNC(D2COMMON, 10840, BOOL, __stdcall, (D2UnitStrc* pItem, D2UnitStrc* pPlayer), -10840)
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// Currently not working as expected
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__declspec(naked) void customD2ClientASM() {
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__asm {
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TEST EAX, EAX
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JE lbl_not_found
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PUSH 0xD
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PUSH ESI
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CALL D2COMMON_10731
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TEST EAX, EAX
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JE lbl_not_found
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MOV EAX, DWORD PTR SS : [ESP + 0x20]
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PUSH EAX
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PUSH ESI
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CALL D2COMMON_10840
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TEST EAX, EAX
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JE lbl_not_found
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JMP lbl_found
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lbl_not_found :
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JMP lbl_not_found_address
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lbl_found :
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RET
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lbl_not_found_address :
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MOV EAX, 0x6FAE1197
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JMP EAX
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}
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}
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static const DLLPatchStrc gptTemplatePatches[] =
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{
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// D2COMMON PATCHES
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{D2DLL_D2COMMON, calculateRelativeOffsetD2Common(0x6F65FEF4), (DWORD)(0xE9), FALSE, 0x01},
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{D2DLL_D2COMMON, calculateRelativeOffsetD2Common(0x6F65FEF5), (DWORD)customD2CommonASM, TRUE, 0x00},
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/*
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// Patching TEST EAX, EAX at address 0x6F68D570
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{D2DLL_D2COMMON, calculateRelativeOffsetD2Common(0x6F68D570), (DWORD)(0xC085), FALSE, 0x00},
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// Patching JNE SHORT 6F68D577 at address 0x6F68D572
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{D2DLL_D2COMMON, calculateRelativeOffsetD2Common(0x6F68D572), (DWORD)(0x0375), FALSE, 0x00},
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// Patching RETN 8 at address 0x6F68D574
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{D2DLL_D2COMMON, calculateRelativeOffsetD2Common(0x6F68D574), (DWORD)(0x0008C2), FALSE, 0x00},
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// Patching MOV EAX,DWORD PTR SS:[ESP+4] at address 0x6F68D577
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{D2DLL_D2COMMON, calculateRelativeOffsetD2Common(0x6F68D577), (DWORD)(0x04E4448B), FALSE, 0x00},
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// Patching MOV EAX,DWORD PTR DS:[EAX+2C] at address 0x6F68D57B
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{D2DLL_D2COMMON, calculateRelativeOffsetD2Common(0x6F68D57B), (DWORD)(0x2C408B), FALSE, 0x00},
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// Patching CMP DWORD PTR DS:[EAX+0C],leftBorder at address 0x6F68D57E
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{D2DLL_D2COMMON, calculateRelativeOffsetD2Common(0x6F68D57E), (DWORD)(0x0C7883), FALSE, 0x0},
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{D2DLL_D2COMMON, calculateRelativeOffsetD2Common(0x6F68D581), (DWORD)leftBorder, FALSE, 0x01},
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// Patching JB SHORT 6F68D59E at address 0x6F68D582
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{D2DLL_D2COMMON, calculateRelativeOffsetD2Common(0x6F68D582), (DWORD)(0x1A72), FALSE, 0x0},
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// Patching CMP DWORD PTR DS:[EAX+0C],rightBorder at address 0x6F68D584
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{D2DLL_D2COMMON, calculateRelativeOffsetD2Common(0x6F68D584), (DWORD)(0x0C7883), FALSE, 0x0},
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{D2DLL_D2COMMON, calculateRelativeOffsetD2Common(0x6F68D587), (DWORD)rightBorder, FALSE, 0x01},
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// Patching JA SHORT 6F68D59E at address 0x6F68D588
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{D2DLL_D2COMMON, calculateRelativeOffsetD2Common(0x6F68D588), (DWORD)(0x1477), FALSE, 0x0},
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// Patching CMP DWORD PTR DS:[EAX+10],topBorder at address 0x6F68D58A
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{D2DLL_D2COMMON, calculateRelativeOffsetD2Common(0x6F68D58A), (DWORD)(0x107883), FALSE, 0x0},
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{D2DLL_D2COMMON, calculateRelativeOffsetD2Common(0x6F68D58D), (DWORD)topBorder, FALSE, 0x01},
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// Patching JB SHORT 6F68D59E at address 0x6F68D58E
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{D2DLL_D2COMMON, calculateRelativeOffsetD2Common(0x6F68D58E), (DWORD)(0x0E72), FALSE, 0x0},
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// Patching CMP DWORD PTR DS:[EAX+10],bottomBorder at address 0x6F68D590
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{D2DLL_D2COMMON, calculateRelativeOffsetD2Common(0x6F68D590), (DWORD)(0x107883), FALSE, 0x0},
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{D2DLL_D2COMMON, calculateRelativeOffsetD2Common(0x6F68D593), (DWORD)bottomBorder, FALSE, 0x01},
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// Patching JA SHORT 6F68D59E at address 0x6F68D594
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{D2DLL_D2COMMON, calculateRelativeOffsetD2Common(0x6F68D594), (DWORD)(0x0877), FALSE, 0x0},
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// Patching MOV EAX,1 at address 0x6F68D596
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{D2DLL_D2COMMON, calculateRelativeOffsetD2Common(0x6F68D596), (DWORD)reverseHexBytes(0xB8010000), FALSE, 0x0},
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{D2DLL_D2COMMON, calculateRelativeOffsetD2Common(0x6F68D59A), (DWORD)(0x00), FALSE, 0x1},
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// Patching RETN 8 at address 0x6F68D59B
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{D2DLL_D2COMMON, calculateRelativeOffsetD2Common(0x6F68D59B), (DWORD)(0x0008C2), FALSE, 0x0},
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// Patching XOR EAX,EAX at address 0x6F68D59E
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{D2DLL_D2COMMON, calculateRelativeOffsetD2Common(0x6F68D59E), (DWORD)(0xC031), FALSE, 0x0},
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// Patching RETN 8 at address 0x6F68D5A0
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{D2DLL_D2COMMON, calculateRelativeOffsetD2Common(0x6F68D5A0), (DWORD)(0x0008C2), FALSE, 0x0},
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*/
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// D2CLIENT PATCHES
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// Patching JMP at address 0x6FAE118F
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{D2DLL_D2CLIENT, calculateRelativeOffsetD2Client(0x6FAE118F), (DWORD)PATCH_JMP, FALSE, 0x01},
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//{D2DLL_D2CLIENT, calculateRelativeOffsetD2Client(0x6FAE1190), (DWORD)customD2ClientASM, TRUE, 0x00},
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{D2DLL_D2CLIENT, calculateRelativeOffsetD2Client(0x6FAE1190), (DWORD)reverseHexBytes(0x6CB30800), FALSE, 0x00},
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{D2DLL_D2CLIENT, calculateRelativeOffsetD2Client(0x6FAE1194), (DWORD)0x90, FALSE, 0x03},
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// Patching TEST EAX,EAX at address 0x6FB6C500
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{D2DLL_D2CLIENT, calculateRelativeOffsetD2Client(0x6FB6C500), (DWORD)(0xC085), FALSE, 0x00},
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// Patching JE 6FAE1283 at address 0x6FB6C502
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{D2DLL_D2CLIENT, calculateRelativeOffsetD2Client(0x6FB6C502), (DWORD)(0x840F), FALSE, 0x00},
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{D2DLL_D2CLIENT, calculateRelativeOffsetD2Client(0x6FB6C504), (DWORD)reverseHexBytes(0x7B4DF7FF), FALSE, 0x00},
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// Patching PUSH 0D at address 0x6FB6C508
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{D2DLL_D2CLIENT, calculateRelativeOffsetD2Client(0x6FB6C508), (DWORD)(0x0D6A), FALSE, 0x00},
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// Patching PUSH ESI at address 0x6FB6C50A
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{D2DLL_D2CLIENT, calculateRelativeOffsetD2Client(0x6FB6C50A), (DWORD)(0x56), FALSE, 0x00},
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// Patching CALL <JMP.&D2Common.#10731> at address 0x6FB6C50B
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{D2DLL_D2CLIENT, calculateRelativeOffsetD2Client(0x6FB6C50B), (DWORD)(0xE8), FALSE, 0x01},
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{D2DLL_D2CLIENT, calculateRelativeOffsetD2Client(0x6FB6C50C), (DWORD)reverseHexBytes(0x10E7FFFF), FALSE, 0x00},
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// Patching TEST EAX,EAX at address 0x6FB6C510
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{D2DLL_D2CLIENT, calculateRelativeOffsetD2Client(0x6FB6C510), (DWORD)(0xC085), FALSE, 0x00},
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// Patching JE 6FAE1197 at address 0x6FB6C512
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{D2DLL_D2CLIENT, calculateRelativeOffsetD2Client(0x6FB6C512), (DWORD)(0x840F), FALSE, 0x00},
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{D2DLL_D2CLIENT, calculateRelativeOffsetD2Client(0x6FB6C514), (DWORD)reverseHexBytes(0x7F4CF7FF), FALSE, 0x00},
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// Patching MOV EAX,DWORD PTR SS:[ESP+20] at address 0x6FB6C518
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{D2DLL_D2CLIENT, calculateRelativeOffsetD2Client(0x6FB6C518), (DWORD)reverseHexBytes(0x8B44E420), FALSE, 0x00},
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// Patching PUSH EAX at address 0x6FB6C51C
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{D2DLL_D2CLIENT, calculateRelativeOffsetD2Client(0x6FB6C51C), (DWORD)(0x50), FALSE, 0x01},
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// Patching PUSH ESI at address 0x6FB6C51D
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{D2DLL_D2CLIENT, calculateRelativeOffsetD2Client(0x6FB6C51D), (DWORD)(0x56), FALSE, 0x01},
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// Patching CALL <JMP.&D2Common.#10840> at address 0x6FB6C51E
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{D2DLL_D2CLIENT, calculateRelativeOffsetD2Client(0x6FB6C51E), (DWORD)(0xE8), FALSE, 0x01},
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{D2DLL_D2CLIENT, calculateRelativeOffsetD2Client(0x6FB6C51F), (DWORD)reverseHexBytes(0x19EFFFFF), FALSE, 0x00},
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// Patching TEST EAX,EAX at address 0x6FB6C523
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{D2DLL_D2CLIENT, calculateRelativeOffsetD2Client(0x6FB6C523), (DWORD)(0xC085), FALSE, 0x00},
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// Patching JE 6FAE1283 at address 0x6FB6C525
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{D2DLL_D2CLIENT, calculateRelativeOffsetD2Client(0x6FB6C525), (DWORD)(0x840F), FALSE, 0x00},
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{D2DLL_D2CLIENT, calculateRelativeOffsetD2Client(0x6FB6C527), (DWORD)reverseHexBytes(0x584DF7FF), FALSE, 0x00},
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// Patching JMP 6FAE1197 at address 0x6FB6C52B
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{D2DLL_D2CLIENT, calculateRelativeOffsetD2Client(0x6FB6C52B), (DWORD)(0xE9), FALSE, 0x01},
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{D2DLL_D2CLIENT, calculateRelativeOffsetD2Client(0x6FB6C52C), (DWORD)reverseHexBytes(0x674CF7FF), FALSE, 0x00},
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{D2DLL_INVALID} // this must be the last entry in the array!
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};
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#endif // _D2PATCH_H
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