Add new cool light beam for the flashlight

Co-authored-by: Евгений Титаренко <frundle@teasanctuary.ru>

scripts/GameCamera.cs

@@ -0,0 +1,19 @@
+using Godot;
+
+public partial class GameCamera : Camera2D
+{
+	/// <summary>
+	/// World position of the flashlight
+	/// </summary>
+	public Vector2 FlashlightPosition;
+
+	public override void _Input(InputEvent @event)
+	{
+		base._Input(@event);
+
+		if (@event is InputEventMouseMotion eventMouseMotion)
+		{
+			FlashlightPosition = eventMouseMotion.Position - Constants.HalfScreenSize + Position;
+		}
+	}
+}