Function SubsituteFile

Code/CryEngine/CryAction/LevelSystem.cpp:1872–1912

#ifndef NO_LIVECREATE

static bool SubsituteFile(const string& srcPath, const string& destPath)
{
	FILE* src = gEnv->pCryPak->FOpen(srcPath.c_str(), "rb", ICryPak::FOPEN_ONDISK);
	if (!src)
	{
		CryLogAlways("SubsituteFile: Failed to open source file '%s'", srcPath.c_str());
		return false;
	}

	FILE* dst = gEnv->pCryPak->FOpen(destPath.c_str(), "wb", ICryPak::FOPEN_ONDISK);
	if (!dst)
	{
		CryLogAlways("SubsituteFile: Failed to open destination file '%s'", destPath.c_str());
		gEnv->pCryPak->FClose(src);
		return false;
	}

	const uint32 CHUNK_SIZE = 64 * 1024;
	char* buf = new char[CHUNK_SIZE];
	size_t readBytes = 0;
	size_t writtenBytes = 0;
	while (!gEnv->pCryPak->FEof(src))
	{
		readBytes = gEnv->pCryPak->FReadRaw(buf, sizeof(char), CHUNK_SIZE, src);
		writtenBytes = gEnv->pCryPak->FWrite(buf, sizeof(char), readBytes, dst);

		if (readBytes != writtenBytes)
		{
			gEnv->pCryPak->FClose(src);
			gEnv->pCryPak->FClose(dst);

			delete[] buf;
			return false;
		}
	}

	delete[] buf;
	gEnv->pCryPak->FClose(src);
	gEnv->pCryPak->FClose(dst);
	return true;
}

#endif