Added panic screen back

Capy64/Runtime/InputEmitter.cs

@@ -75,6 +75,7 @@ internal class InputEmitter
         if (heldReboot >= rebootDelay)
         {
             heldReboot = 0;
+            RuntimeManager.ResetPanic();
             RuntimeManager.Reboot();
         }
     }

Capy64/Runtime/LuaState.cs

@@ -135,9 +135,18 @@ public class LuaState : IDisposable
         string stacktrace = Thread.OptString(-1, null);
 
         var builder = new StringBuilder();
+        builder.AppendLine(status switch
+        {
+            LuaStatus.ErrSyntax => "Syntax error",
+            LuaStatus.ErrMem => "Out of memory",
+            LuaStatus.ErrErr => "Error",
+            LuaStatus.ErrRun => "Runtime error",
+            _ => status.ToString()
+        });
         builder.AppendLine(error);
         if (!string.IsNullOrWhiteSpace(stacktrace))
         {
+            builder.AppendLine();
             builder.Append(stacktrace);
         }
 

Capy64/Runtime/PanicScreen.cs

@@ -0,0 +1,57 @@
+using Capy64.Core;
+using Capy64.Runtime.Libraries;
+using Microsoft.Xna.Framework;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Capy64.Runtime;
+
+public class PanicScreen
+{
+    public static Color ForegroundColor = Color.White;
+    public static Color BackgroundColor = new Color(0, 51, 187);
+
+    public static void Render(string error, string details = null)
+    {
+        Term.ForegroundColor = ForegroundColor;
+        Term.BackgroundColor = BackgroundColor;
+        Term.SetCursorBlink(false);
+        Term.SetSize(51, 19);
+        Term.Clear();
+
+        var title = " Capy64 ";
+        var halfX = (Term.Width / 2) + 1;
+        Term.SetCursorPosition(halfX - (title.Length / 2), 2);
+        Term.ForegroundColor = BackgroundColor;
+        Term.BackgroundColor = ForegroundColor;
+        Term.Write(title);
+
+        Term.ForegroundColor = ForegroundColor;
+        Term.BackgroundColor = BackgroundColor;
+        Term.SetCursorPosition(1, 4);
+        Print(error + '\n');
+
+        if (details is not null)
+        {
+            Print(details);
+        }
+        Term.SetCursorPosition(1, 19);
+        Print("Hold CTRL + ALT + INSERT to reboot.");
+    }
+
+    private static void Print(string txt)
+    {
+        foreach (var ch in txt)
+        {
+            Term.Write(ch.ToString());
+            if (Term.CursorPosition.X >= Term.Width || ch == '\n')
+            {
+                Term.SetCursorPosition(1, (int)Term.CursorPosition.Y + 1);
+            }
+        }
+        Term.SetCursorPosition(1, (int)Term.CursorPosition.Y + 1);
+    }
+}

Capy64/Runtime/RuntimeManager.cs

@@ -20,6 +20,7 @@ internal class RuntimeManager : IPlugin
     private int step = 0;
 
     private static bool close = false;
+    private static bool inPanic = false;
 
     private static IGame _game;
     public RuntimeManager(IGame game)
@@ -58,12 +59,28 @@ internal class RuntimeManager : IPlugin
     }
 
     private void Resume()
+    {
+        if (inPanic) return;
+        try
         {
             if (close || !luaState.ProcessQueue())
             {
                 Start();
             }
         }
+        catch (LuaException e)
+        {
+            Console.Error.WriteLine(e);
+            inPanic = true;
+            close = true;
+            PanicScreen.Render(e.Message);
+        }
+    }
+
+    public static void ResetPanic()
+    {
+        inPanic = false;
+    }
 
     private void InitBIOS()
     {