From de4b6485532cab07ab03519f57991433d19ad656 Mon Sep 17 00:00:00 2001 From: AlphaYellow Date: Sun, 17 Nov 2024 00:12:04 +0000 Subject: [PATCH] new file: source/fixes/AirborneTroopsCountdownToDDayFOVFix.cpp --- .../AirborneTroopsCountdownToDDayFOVFix.cpp | 241 ++++++++++++++++++ 1 file changed, 241 insertions(+) create mode 100644 source/fixes/AirborneTroopsCountdownToDDayFOVFix.cpp diff --git a/source/fixes/AirborneTroopsCountdownToDDayFOVFix.cpp b/source/fixes/AirborneTroopsCountdownToDDayFOVFix.cpp new file mode 100644 index 00000000..7d54ddf5 --- /dev/null +++ b/source/fixes/AirborneTroopsCountdownToDDayFOVFix.cpp @@ -0,0 +1,241 @@ +#include +#include +#include +#include +#include // For getch() function [get character] +#include // For uint32_t variable type +#include +#include +#include +#include +#include + +using namespace std; + +// Constants +const streampos kCameraHorizontalFOVOffset = 0x0020E9A2; + +// Variables +uint32_t newWidth, newHeight; +string input; +fstream file; +int choice, tempChoice; +bool fileNotFound, validKeyPressed; +double originalAspectRatio = 5.0 / 4.0; // 5:4 +float newCameraHorizontalFOV; +char ch; + +// Function to handle user input in choices +void HandleChoiceInput(int &choice) +{ + tempChoice = -1; // Temporary variable to store the input + validKeyPressed = false; // Flag to track if a valid key was pressed + + while (true) + { + ch = _getch(); // Waits for user to press a key + + // Checks if the key is '1' or '2' + if ((ch == '1' || ch == '2') && !validKeyPressed) + { + tempChoice = ch - '0'; // Converts char to int and stores the input temporarily + cout << ch; // Echoes the valid input + validKeyPressed = true; // Sets the flag as a valid key has been pressed + } + else if (ch == '\b' || ch == 127) // Handles backspace or delete keys + { + if (tempChoice != -1) // Checks if there is something to delete + { + tempChoice = -1; // Resets the temporary choice + cout << "\b \b"; // Erases the last character from the console + validKeyPressed = false; // Resets the flag as the input has been deleted + } + } + // If 'Enter' is pressed and a valid key has been pressed prior + else if (ch == '\r' && validKeyPressed) + { + choice = tempChoice; // Assigns the temporary input to the choice variable + cout << endl; // Moves to a new line + break; // Exits the loop since we have a confirmed input + } + } +} + +// Function to handle user input in resolution +void HandleResolutionInput(uint32_t &newCustomResolutionValue) +{ + do + { + cin >> newCustomResolutionValue; + + cin.clear(); // Clears error flags + cin.ignore(numeric_limits::max(), '\n'); // Ignores invalid input + + if (cin.fail()) + { + cin.clear(); // Clears error flags + cin.ignore(numeric_limits::max(), '\n'); // Ignores invalid input + cout << "Invalid input. Please enter a numeric value." << endl; + } + else if (newCustomResolutionValue <= 0 || newCustomResolutionValue >= 65535) + { + cout << "Please enter a valid number." << endl; + } + } while (newCustomResolutionValue <= 0 || newCustomResolutionValue > 65535); +} + +// Function to open the file +void OpenFile(fstream &file, const string &filename) +{ + fileNotFound = false; + + file.open(filename, ios::in | ios::out | ios::binary); + + // If the file is not open, sets fileNotFound to true + if (!file.is_open()) + { + fileNotFound = true; + } + + // Loops until the file is found and opened + while (fileNotFound) + { + // Tries to open the file again + file.open(filename, ios::in | ios::out | ios::binary); + + if (!file.is_open()) + { + cout << "\nFailed to open " << filename << ", check if the executable has special permissions allowed that prevent the fixer from opening it (e.g: read-only mode), it's not present in the same directory as the fixer or if it's currently running. Press Enter when all the mentioned problems are solved." << endl; + do + { + ch = _getch(); // Waits for user to press a key + } while (ch != '\r'); // Keeps waiting if the key is not Enter ('\r' is the Enter key in ASCII) + } + else + { + cout << "\n" << filename << " opened successfully!" << endl; + fileNotFound = false; // Sets fileNotFound to false as the file is found and opened + } + } +} + +void SearchAndReplacePatterns(fstream &file) +{ + // Defines the original and new patterns with their sizes + vector> patterns = { + {"\xD9\x05\x00\x62\x61\x00\xD8\xC9\xD9\x5C\x24\x08", 12}, + // DISASSEMBLED CODE - PATTERN 1 (UNMODIFIED) + // 00472123 | D9 05 00 62 61 00 | fld dword ptr [00616200] + // 00472129 | D8 C9 | fmul st(0),st(1) + // 0047212B | D9 5C 24 08 | fstp dword ptr [esp+8] + + {"\xB9\xA4\x12\x69\x00\xE9\x86\xFA\xE5\xFF\x90\x90\x90\x90\x90\x90\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 34} + }; + + vector> replacements = { + {"\xD9\x05\x00\x62\x61\x00\xE9\x62\xC8\x19\x00\x90", 12}, + // DISASSEMBLED CODE - PATTERN 1 (MODIFIED) + // 00472123 | D9 05 00 62 61 00 | fld dword ptr [00616200] + // 00472129 | E9 62 C8 19 00 | jmp 0060E990 + // 0047212E | 90 | nop + + {"\xB9\xA4\x12\x69\x00\xE9\x86\xFA\xE5\xFF\x90\x90\x90\x90\x90\x90\xD8\xC9\xD8\x0D\xA2\xE9\x60\x00\x3E\xD9\x5C\x24\x08\xE9\x8D\x37\xE6\xFF", 34} + // DISASSEMBLED CODE - PART OF PATTERN 2 (MODIFIED) + // CODECAVE ENTRYPOINT AT 0060E990 (x32dbg) + // 0060E990 | D8 C9 | fmul st(0),st(1) + // 0060E992 | D8 0D A2 E9 60 00 | fmul dword ptr [0060E9A2] + // 0060E998 | 3E D9 5C 24 08 | fstp dword ptr [esp+8] + // 0060E99D | E9 8D 37 E6 FF | jmp 0047212F + }; + + // Reads the entire file content into memory + file.seekg(0, ios::end); + size_t fileSize = file.tellg(); + file.seekg(0, ios::beg); + char *buffer = new char[fileSize]; + file.read(buffer, fileSize); + + // Iterates through each pattern + for (size_t i = 0; i < patterns.size(); ++i) + { + const char *originalPattern = patterns[i].first; + size_t patternSize = patterns[i].second; + const char *newPattern = replacements[i].first; + size_t newPatternSize = replacements[i].second; + + // Searches for the pattern + char *patternLocation = search(buffer, buffer + fileSize, originalPattern, originalPattern + patternSize); + + // If the pattern is found, replaces it + if (patternLocation != buffer + fileSize) + { + memcpy(patternLocation, newPattern, newPatternSize); + + // Writes the modified content back to the file + file.seekp(patternLocation - buffer); + file.write(newPattern, newPatternSize); + } + } + + // Cleans up + delete[] buffer; + file.flush(); +} + +double NewCameraHorizontalFOVCalculation(uint32_t &newWidthValue, uint32_t &newHeightValue) +{ + return (static_cast(newWidthValue) / static_cast(newHeightValue)) / (originalAspectRatio); +} + +int main() +{ + + cout << "Airborne Troops: Countdown to D-Day (2004) FOV Fixer v1.0 by AlphaYellow and AuToMaNiAk005, 2024\n\n----------------\n"; + + do + { + cout << "\n- Enter the desired width: "; + HandleResolutionInput(newWidth); + + cout << "\n- Enter the desired height: "; + HandleResolutionInput(newHeight); + + OpenFile(file, "AirborneTroops.exe"); + + SearchAndReplacePatterns(file); + + newCameraHorizontalFOV = static_cast(NewCameraHorizontalFOVCalculation(newWidth, newHeight)); + + file.seekp(kCameraHorizontalFOVOffset); + file.write(reinterpret_cast(&newCameraHorizontalFOV), sizeof(newCameraHorizontalFOV)); + + // Checks if any errors occurred during the file operations + if (file.good()) + { + // Confirmation message + cout << "\nSuccessfully fixed the field of view." << endl; + } + else + { + cout << "\nError(s) occurred during the file operations." << endl; + } + + // Closes the file + file.close(); + + cout << "\n- Do you want to exit the program (1) or try another value (2)?: "; + HandleChoiceInput(choice); + + if (choice == 1) + { + cout << "\nPress enter to exit the program..."; + do + { + ch = _getch(); // Waits for user to press a key + } while (ch != '\r'); // Keeps waiting if the key is not Enter ('\r' is the Enter key in ASCII) + return 0; + } + + cout << "\n---------------------------\n"; + } while (choice != 1); // Checks the flag in the loop condition +} \ No newline at end of file