FakeVRChat.exe

GNU/Linuxを始めとしたUnix環境で、VRChatのワールドを「Build and test」出来るようにするプログラムです。

VRChatはWindows向けビルドしかリリースされておらず、動作させるにはProtonが必要です。そのため非Windows環境では VRChatのワールドをオフラインテストすることは出来ませんが、本プログラムをVRChat SDKの設定でVRChatの実行ファイルとして設定することにより、オフラインテストを可能にします。

/* FakeVRChat.exe -- The fake \"VRChat.exe\" for running offline test of VRChat World on GNU/Linux.
 * This program starts VRChat using Proton and passes the arguments as is. You can use this program to run offline tests for VRChat worlds on GNU/Linux.
 *
 * To begin using this, modify the "Environment settings" section below. Follow the instructions and adjust the values of each variable to match your environment. The "Environment settings" section is located at the top of the main function.
 * Once you have finished modifying the settings, compile this code to generate an executable file named VRChat.exe (use this name on Unix as well). g++ and clang++ are tested.
 * After VRChat.exe is generated, register it as a VRChat executable file in the Settings panel of VRChat Control Panel.
 */


/* Copyright 2023 半狐 (a.k.a. 半透明狐人間,TlFoxHuman,Translucentfoxhuman)
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
 * THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

 */
#include <iostream>
#include <sstream>
#include <string>
#include <cstdlib>



//#define __DEBUG__

int main(int argc,char** argv) {

	/*
	 * Environment settings
	 *
	 * The "compat_data_path" is your Proton data directory. The directory usually has the "pfx" directory.
	 * "compat_client_install_path" is your Steam data directory.
	 * "proton_path" is path to your Proton executable.
	 * "vrchat_exe_path is path to your VRChat executable (not "launch.exe", it must be "VRChat.exe"). You can find it by going to the VRChat page in your Steam Library and selecting "Manage" → "Manage" → "Browse local files".
	 *
	 * Refer to the existing variable values for examples.
	 * */
	std::string compat_data_path           = "/home/user/.local/share/Steam/steamapps/compatdata/438100";
	std::string compat_client_install_path = "/home/user/.local/share/Steam";
	std::string proton_path                = "/home/user/.local/share/Steam/steamapps/common/Proton 7.0/proton";
	std::string vrchat_exe_path            = "/home/user/.local/share/Steam/steamapps/common/VRChat/VRChat.exe";
	//End of Environment settings.

	if (argc <= 1) {
		std::cout << "FakeVRChat.exe -- The fake \"VRChat.exe\" for running offline test of VRChat World on GNU/Linux.\n"
		"Copyright 2023 半狐 (a.k.a. 半透明狐人間,TlFoxHuman,Translucentfoxhuman)\n"
		"This program is provided under the terms of MIT License.\n\n"
		"Usage: Register this program as a VRChat executable file in the Settings panel of VRChat Control Panel." << std::endl;
		return 0;
	}

	std::ostringstream vrccmd;
	vrccmd << "env STEAM_COMPAT_DATA_PATH=\"" << compat_data_path << "\" STEAM_COMPAT_CLIENT_INSTALL_PATH=\"" << compat_client_install_path << "\" \"" << proton_path << "\" run \"" << vrchat_exe_path << "\"";
	//引数の結合
	std::string argstr="";
	for (int i=1;i<argc;i++) {
		argstr+= std::string(argv[i]) + " ";
	}
	#ifdef __DEBUG__
	std::cout << "20-argstr: " << argstr <<std::endl;
	#endif
	int count;
	int fpos = -8;
	while (true) {
		fpos = argstr.find("file:///",fpos+8);
		if (fpos == std::string::npos || count >=argstr.length()) {
			break;
		}
		argstr.insert(fpos+8,"Z:");
		count++;
	}
	#ifdef __DEBUG__
	std::cout << "32-argstr: " << argstr << std::endl;
	#endif
	count = 0;
	fpos = 0;
	while (true) {
		count++;
		fpos = argstr.find("&" ,fpos +3 );
		#ifdef __DEBUG__
		std::cout << "fpos:" << std::to_string(fpos) << std::endl;
		#endif
		if (fpos == std::string::npos || count >=argstr.length()) {
			break;
		}
		argstr.insert(fpos,"\"");
		argstr.insert(fpos+2,"\"");
	}
	#ifdef __DEBUG__
	std::cout << "44-argstr: " << argstr << std::endl;
	#endif
	count=0;
	fpos=0;
	while (true) {
		count++;
		fpos = argstr.find("%2f",fpos+3);
		if (fpos == std::string::npos || count >= argstr.length()) {
			break;
		}
		argstr.replace(fpos,3,"\\\\");
	}
	#ifdef __DEBUG__
	std::cout << "56-argstr: " << argstr << std::endl;
	std::cout << "system:" << vrccmd.str() << " " << argstr << std::endl;
	#endif
	#ifndef __DEBUG__
	system(std::string(vrccmd.str() + " " + argstr).c_str());
	#endif
	return 0;
}