fix 4gb patch for not "GeometryDash.exe" files

CHANGELOG.md

@@ -1,5 +1,6 @@
 ## v.2.0.1
-* [Hotfix] Fixed a crash during the game launch if you've unfocused the game window
+* Fixed a crash during the game launch if you've unfocused the game window
+* Fixed a crash for GDPS users, if executable name is not "GeometryDash.exe"
 
 ## v2.0.0
 ### Full project rewrite for better stability and code quality

src/shared/platform/win32/4gb_patch.hpp

@@ -5,22 +5,35 @@
 
 #define WIN32_LEAN_AND_MEAN
 
-#include <windows.h>
+#include <Windows.h>
 
 namespace openhack::win32::four_gb {
     /// @brief Whether `isPatched` has been called.
     inline static bool HAS_CHECKED = false;
     /// @brief Whether the game is already patched to use 4GB of memory.
     inline static bool IS_PATCHED = false;
 
+    /// @brief Gets the path of the running executable.
+    /// @return The path of the running executable.
+    inline std::string getExecutablePath() {
+        char buffer[MAX_PATH];
+        GetModuleFileNameA(nullptr, buffer, MAX_PATH);
+        return buffer;
+    }
+
     /// @brief Check whether the game is already patched to use 4GB of memory.
     /// @return Whether the game is already patched to use 4GB of memory.
     inline bool isPatched() {
         // Check if we already know the result
         if (HAS_CHECKED) return IS_PATCHED;
 
-        // Read 'GeometryDash.exe' into memory
-        std::ifstream file("GeometryDash.exe", std::ios::binary);
+        auto exePath = getExecutablePath();
+
+        // Try reading the game executable
+        std::ifstream file(exePath, std::ios::binary);
+        if (!file.is_open()) return false;
+
+        // Read the file into memory
         file.seekg(0, std::ios::end);
         auto size = file.tellg();
         file.seekg(0, std::ios::beg);
@@ -44,8 +57,9 @@ namespace openhack::win32::four_gb {
     /// @brief Patch the game to use 4GB of memory.
     /// @return Whether the patch was successful.
     inline bool patch() {
-        // Try reading "GeometryDash.exe"
-        std::ifstream file("GeometryDash.exe", std::ios::binary);
+        // Try reading the game executable
+        auto exePath = getExecutablePath();
+        std::ifstream file(exePath, std::ios::binary);
         if (!file.is_open()) return false;
 
         // Read the file into memory
@@ -62,14 +76,14 @@ namespace openhack::win32::four_gb {
         peHeader->FileHeader.Characteristics |= IMAGE_FILE_LARGE_ADDRESS_AWARE;
 
         // Move the original file to a backup
-        auto backupPath = "GeometryDash.exe.bak";
-        if (std::rename("GeometryDash.exe", backupPath) != 0) {
+        auto backupPath = exePath + ".bak";
+        if (std::rename(exePath.c_str(), backupPath.c_str()) != 0) {
             delete[] buffer;
             return false;
         }
 
         // Write the modified file
-        std::ofstream newFile("GeometryDash.exe", std::ios::binary);
+        std::ofstream newFile(exePath, std::ios::binary);
         newFile.write(buffer, size);
         newFile.close();