Process.Start问题启动游戏

Question

Currently I'm trying to program a launcher for my game. My issue is, if you launch my game this way:

System.Diagnostics.Process.Start(@"F:\Freak Mind Games\Projects 2013\JustShoot\game.bat");

I get an unhandled exception or could not find error.

But if I do it this way:

System.Diagnostics.Process.Start(@"game.bat");

It works. Where is the issue ?

Answer 1

I assume that the batch file resides in the same directory as your program launcher. Determine its location automatically:

string executableDir = Path.GetDirectoryName(Application.ExecutablePath);
Process.Start(Path.Combine(executableDir, "game.bat"));

Where

• Application.ExecutablePath is the path of your executable, ie F:\\Freak Mind Games\\Projects 2013\\JustShoot\\justshoot.exe .

• Path.GetDirectoryName(...) gets the directory part of it, ie F:\\Freak Mind Games\\Projects 2013\\JustShoot .

• Path.Combine(executableDir, "game.bat") combines the directory with game.bat , ie F:\\Freak Mind Games\\Projects 2013\\JustShoot\\game.bat

---

Keep also in mind that when started from Visual Studio the executable path is "...\\bin\\Debug" or "...\\bin\\Release" . Therefore you might want to remove these parts from the path if your batch file resides in the project directory.

const string DebugDir = @"\bin\Debug";
const string ReleaseDir = @"\bin\Release";

string executableDir = Path.GetDirectoryName(Application.ExecutablePath);
if (executableDir.EndsWith(DebugDir)) {
    executableDir =
        executableDir.Substring(0, executableDir.Length - DebugDir.Length);
} else if (executableDir.EndsWith(ReleaseDir)) {
    executableDir =
        executableDir.Substring(0, executableDir.Length - ReleaseDir.Length);
}
Process.Start(Path.Combine(executableDir, "game.bat"));

---

UPDATE

It is not a good idea the hard code the directories. Place the paths of the games to be launched in a text file in the same directory as your game launcher (eg "launch.txt"). Each line would contain a game that can be launched with the name of the game plus its path. Like this:

Freak Mind Games = F:\Freak Mind Games\Projects 2013\JustShoot\game.bat
Minecraft = C:\Programs\Minecraft\minecraft.exe

Define a directory as variable in your form:

private Dictionary<string,string> _games;

Now get a list of these games like this:

string executableDir = Path.GetDirectoryName(Application.ExecutablePath);
string launchFile = Path.Combine(executableDir, "launch.txt"));

string[] lines = File.ReadAllLines(launchFile);

// Fill the dictionary with the game name as key and the path as value.
_games = lines
    .Where(l => l.Contains("="))
    .Select(l => l.Split('='))
    .ToDictionary(s => s[0].Trim(), s => s[1].Trim());

Then display the game names in a ListBox :

listBox1.AddRange(
     _games.Keys
        .OrderBy(k => k)
        .ToArray()
);

Finally launch the selected game with

string gamePath = _games[listBox1.SelectedItem];
var processStartInfo = new ProcessStartInfo(gamePath);
processStartInfo.WorkingDirectory = Path.GetDirectoryName(gamePath);
Process.Start(processStartInfo);