LunaHook-mirror/LunaHook/engine64/UnrealEngine.cpp

#include "UnrealEngine.h"

bool ENTERGRAMfilter(void *data, size_t *size, HookParam *hp)
{

  auto text = reinterpret_cast<LPWSTR>(data);
  std::wstring str = std::wstring(text, *size / 2);
  std::wregex reg1(L"\\|(.*?)\x300a(.*?)\x300b");
  std::wstring result1 = std::regex_replace(str, reg1, L"$1");
  std::wregex reg2(L"\x3000|\n");
  std::wstring result2 = std::regex_replace(result1, reg2, L"");
  write_string_overwrite(text, size, result2);
  return true;
};
bool InsertENTERGRAM()
{
  // https://vndb.org/v40521
  //[240125][1208048][エンターグラム] すだまリレイシヨン パッケージ版 (mdf+mds)

  const BYTE BYTES[] = {
      //clang-format off
      0x48, 0x8B, 0x43, 0x38,
      0x48, 0x8D, 0x7C, 0x24, 0x30,
      0x48, 0x8B, 0x74, 0x24, 0x20,
      0x48, 0x85, 0xC0,
      0x48, 0x8B, 0xCD,
      0x48, 0x89, 0x6C, 0x24, 0x40,
      0x48, 0x0F, 0x45, 0xF8,
      //clang-format on
  };
  auto addr = MemDbg::findBytes(BYTES, sizeof(BYTES), processStartAddress, processStopAddress);
  if (addr == 0)
    return false;
  HookParam hp;
  hp.address = addr + 14;
  hp.type = USING_STRING | CODEC_UTF16 | NO_CONTEXT;
  hp.filter_fun = ENTERGRAMfilter;
  hp.offset = get_reg(regs::rsi);
  hp.newlineseperator = L"\\n";
  return NewHook(hp, "UnrealEngine");
}
bool UnrealEngine::attach_function()
{
  return InsertENTERGRAM();
}