Improve game over conditions

Scripts/GameManager.cs

@@ -4,6 +4,16 @@ using System.Linq;
 
 public partial class GameManager : Node
 {
+   [Signal]
+   public delegate void OnGameOverEventHandler();
+
+   [Signal]
+   public delegate void OnP1GameOverEventHandler();
+   [Signal]
+   public delegate void OnP2GameOverEventHandler();
+
+   public int NumberOfPlayers;
+
    public bool IsP1SelectingCharacter = true;
    public bool IsP2SelectingCharacter = true;
 
@@ -18,7 +28,8 @@ public partial class GameManager : Node
    [Export]
    public Character _p2SelectedCharacter;
 
-   public bool P1GameOver = false;
+   private bool _p1GameOver = false;
+   private bool _p2GameOver = false;
 
    private int _p1CharacterIndex = 0;
    private int _p2CharacterIndex = 0;
@@ -42,6 +53,34 @@ public partial class GameManager : Node
       _p1SelectedCharacter?.QueueFree();
       _p1CharacterIndex = 0;
    }
+
+   public void SetP1GameOver(bool isGameOver)
+   {
+      _p1GameOver = isGameOver;
+      if (isGameOver)
+      {
+         EmitSignal(SignalName.OnP1GameOver);
+         CheckForOverallGameOver();
+      }
+   }
+
+   public bool IsP1GameOver => _p1GameOver;
+
+   public void SetP2GameOver(bool isGameOver)
+   {
+      _p2GameOver = isGameOver;
+      if (isGameOver)
+      {
+         EmitSignal(SignalName.OnP2GameOver);
+         CheckForOverallGameOver();
+      }
+   }
+
+   private void CheckForOverallGameOver()
+   {
+      if (_p1GameOver && _p2GameOver)
+         EmitSignal(SignalName.OnGameOver);
+   }
 }
 
 public partial class Character : CharacterBody3D