More system properties because yes!! 🎉

Signed-off-by: TheKodeToad <TheKodeToad@proton.me>

launcher/BaseInstance.cpp

@@ -385,7 +385,7 @@ QString BaseInstance::name() const
 
 QString BaseInstance::windowTitle() const
 {
-    return BuildConfig.LAUNCHER_DISPLAYNAME + ": " + name().replace(QRegularExpression("\\s+"), " ");
+    return BuildConfig.LAUNCHER_DISPLAYNAME + ": " + name();
 }
 
 // FIXME: why is this here? move it to MinecraftInstance!!!

launcher/minecraft/MinecraftInstance.cpp

@@ -634,6 +634,12 @@ QString MinecraftInstance::createLaunchScript(AuthSessionPtr session, MinecraftS
         launchScript += "windowParams " + windowParams + "\n";
     }
 
+    // instance info
+    {
+        launchScript += "instanceName " + name() + "\n";
+        launchScript += "instanceIconKey " + iconKey() + "\n";
+    }
+
     // legacy auth
     if (session) {
         launchScript += "userName " + session->player_name + "\n";

libraries/launcher/org/prismlauncher/EntryPoint.java

@@ -105,11 +105,25 @@ public final class EntryPoint {
             return ExitCode.ABORT;
         }
 
+        // populate properties to provide mods with more info
+        String name = params.getString("instanceName", "");
+        String iconKey = params.getString("instanceIconKey", "default");
+
+        System.setProperty("org.prismlauncher.instance.name", name);
+        System.setProperty("org.prismlauncher.instance.icon.id", iconKey);
+        System.setProperty("org.prismlauncher.instance.icon.path", "icon.png");
+
+        // set multimc properties for compatibility
+        System.setProperty("multimc.instance.title", name);
+        System.setProperty("multimc.instance.icon", iconKey);
+
+        // launch the game
+        String launcherType = params.getString("launcher");
+
         try {
             Launcher launcher;
-            String type = params.getString("launcher");
 
-            switch (type) {
+            switch (launcherType) {
                 case "standard":
                     launcher = new StandardLauncher(params);
                     break;
@@ -119,7 +133,7 @@ public final class EntryPoint {
                     break;
 
                 default:
-                    throw new IllegalArgumentException("Invalid launcher type: " + type);
+                    throw new IllegalArgumentException("Invalid launcher type: " + launcherType);
             }
 
             launcher.launch();