From 35def2831acd67ace6943e06f502a356529c3357 Mon Sep 17 00:00:00 2001
From: Paul Buetow <paul@buetow.org>
Date: Fri, 27 Mar 2026 13:11:19 +0200
Subject: Auto-open CLI simulation files on startup

---
 src/main/java/simulator/VSSimulatorFrame.java | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

(limited to 'src/main/java/simulator/VSSimulatorFrame.java')

diff --git a/src/main/java/simulator/VSSimulatorFrame.java b/src/main/java/simulator/VSSimulatorFrame.java
index 3cf4e91..818bea9 100644
--- a/src/main/java/simulator/VSSimulatorFrame.java
+++ b/src/main/java/simulator/VSSimulatorFrame.java
@@ -504,6 +504,7 @@ public class VSSimulatorFrame extends VSFrame {
         tabbedPane.addTab(prefs.getString("lang.simulator")
                           + " " + simulator.getSimulatorNum(), simulator);
         tabbedPane.setSelectedComponent(simulator);
+        currentSimulator = simulator;
 
         if (simulators.size() == 1) {
             menuEdit.setEnabled(true);
@@ -576,6 +577,9 @@ public class VSSimulatorFrame extends VSFrame {
      * Starts the current simulator
      */
     public void startCurrentSimulator() {
+        if (currentSimulator == null)
+            return;
+
         VSMenuItemStates menuItemState =
             currentSimulator.getMenuItemStates();
         menuItemState.setStart(false);
@@ -586,6 +590,23 @@ public class VSSimulatorFrame extends VSFrame {
         updateSimulatorMenu();
     }
 
+    /**
+     * Opens the given simulator file and starts playback if load succeeds.
+     *
+     * @param filename the simulation file to open
+     *
+     * @return the loaded simulator, or null if loading failed
+     */
+    public VSSimulator openAndStartSimulator(String filename) {
+        VSSerialize serialize = new VSSerialize();
+        VSSimulator simulator = serialize.openSimulator(filename, this);
+
+        if (simulator != null)
+            startCurrentSimulator();
+
+        return simulator;
+    }
+
     /**
      * Pauses the current simulator
      */
-- 
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