Path separator issue and StringUtils optimization

BSLegacyUtil/Program.cs

@@ -191,7 +191,7 @@ private static void BeginInput() {
 
                 Process.Start(new ProcessStartInfo {
                     WorkingDirectory = bsDir,
-                    FileName = $"{bsDir}{Path.PathSeparator}IPA.exe"
+                    FileName = $"{bsDir}{Path.DirectorySeparatorChar}IPA.exe"
                 });
 
                 if (!isOldSelected) {
@@ -241,7 +241,7 @@ private static void BeginInput() {
     private static void PlayGame(bool oculus = false) {
         var p = new Process();
         var temp = Path.Combine(Vars.BaseDirectory, "Installed Versions", $"Beat Saber {LocalJsonModel.TheConfig!.RememberedVersion}");
-        p.StartInfo = new ProcessStartInfo($"{temp}{Path.PathSeparator}Beat Saber.exe", oculus ? "-vrmode oculus" : "") {
+        p.StartInfo = new ProcessStartInfo($"{temp}{Path.DirectorySeparatorChar}Beat Saber.exe", oculus ? "-vrmode oculus" : "") {
             UseShellExecute = false,
             WorkingDirectory = temp
         };

BSLegacyUtil/Utils/StringUtils.cs

@@ -1,13 +1,8 @@
 namespace BSLegacyUtil.Utils; 
 
 public static class StringUtils {
-    public static bool ContainsMultiple(this string str1, string str2, string str3) => str1.Contains(str2) || str1.Contains(str3);
-    public static bool ContainsMultiple(this string str1, string str2, string str3, string str4) => str1.Contains(str2) || str1.Contains(str3) || str1.Contains(str4);
-    public static bool ContainsMultiple(this string str1, string str2, string str3, string str4, string str5) => str1.Contains(str2) || str1.Contains(str3) || str1.Contains(str4) || str1.Contains(str5);
-
-    public static bool EqualsMultiple(this string str1, string str2, string str3) => str1.Equals(str2) || str1.Equals(str3);
-    public static bool EqualsMultiple(this string str1, string str2, string str3, string str4) => str1.Equals(str2) || str1.Equals(str3) || str1.Equals(str4);
-    public static bool EqualsMultiple(this string str1, string str2, string str3, string str4, string str5) => str1.Equals(str2) || str1.Equals(str3) || str1.Equals(str4) || str1.Equals(str5);
+    public static bool ContainsMultiple(this string str1, params string[] strs) => strs.Any(str1.Contains);
+    public static bool EqualsMultiple(this string str1, params string[] strs) => strs.Any(str1.Equals);
 
     public static string ReplaceAll(this string theStringToBeEdited, string oldCharacters, string newCharacters) // Idea from Java String.ReplaceAll()
         => oldCharacters.ToCharArray().Aggregate(theStringToBeEdited, (current, c) => current.Replace($"{c}", newCharacters));

BSLegacyUtil/Vars.cs

@@ -13,7 +13,7 @@ public static class Vars {
 #else
     public static bool IsDebug { get; set; }
 #endif
-    public static string BaseDirectory { get; internal set; } = IsWindows ? Environment.CurrentDirectory + Path.PathSeparator : AppDomain.CurrentDomain.BaseDirectory;
+    public static string BaseDirectory { get; internal set; } = IsWindows ? Environment.CurrentDirectory + Path.DirectorySeparatorChar : AppDomain.CurrentDomain.BaseDirectory;
 
     /*===============================================*/
     public static string SteamPassword { get; internal set; } = "";