Add .cs version

2009scape.cs

@@ -0,0 +1,76 @@
+using System;
+using System.Diagnostics;
+using System.IO;
+using System.Net;
+
+class Program
+{
+    static void Main()
+    {
+        string jarUrl = "https://gitlab.com/2009scape/rt4-client/-/jobs/5406815814/artifacts/raw/client/build/libs/rt4-client.jar";
+        string jarPath = "rt4-client.jar";
+        string javaInstallerUrl = "https://github.com/ojdkbuild/ojdkbuild/releases/download/java-1.8.0-openjdk-1.8.0.332-1.b09-x86/java-1.8.0-openjdk-1.8.0.332-1.b09.ojdkbuild.windows.x86.msi";
+        string javaInstallerPath = "java_installer.msi";
+
+        // Download rt4-client.jar
+        DownloadFile(jarUrl, jarPath);
+
+        // Write content to config.json
+        string jsonContent = @"{
+  ""ip_management"": ""play.2009scape.org"",
+  ""ip_address"": ""play.2009scape.org"",
+  ""world"": 1,
+  ""server_port"": 43594,
+  ""wl_port"": 43595,
+  ""js5_port"": 43595,
+  ""ui_scale"": 1,
+  ""fps"": 0
+}";
+        File.WriteAllText("config.json", jsonContent);
+
+        // Check if Java is installed
+        if (!IsJavaInstalled())
+        {
+            // Download Java installer
+            DownloadFile(javaInstallerUrl, javaInstallerPath);
+
+            // Run Java installer
+            Process javaInstallProcess = Process.Start(javaInstallerPath);
+            javaInstallProcess.WaitForExit();
+        }
+
+        // Run rt4-client.jar with Java
+        Process.Start("java", "-jar " + jarPath);
+    }
+
+    static void DownloadFile(string url, string outputPath)
+    {
+        using (WebClient client = new WebClient())
+        {
+            client.DownloadFile(url, outputPath);
+        }
+    }
+
+    static bool IsJavaInstalled()
+    {
+        try
+        {
+            ProcessStartInfo psi = new ProcessStartInfo
+            {
+                FileName = "java",
+                Arguments = "-version",
+                RedirectStandardError = true,
+                UseShellExecute = false,
+                CreateNoWindow = true
+            };
+            Process proc = Process.Start(psi);
+            string output = proc.StandardError.ReadToEnd();
+            proc.WaitForExit();
+            return output.Contains("version");
+        }
+        catch
+        {
+            return false;
+        }
+    }
+}