add initial project files and configurations, including EventBus, systems, and resources

Code/Systems/PlayerInputSystem.cs

@@ -0,0 +1,23 @@
+using Godot;
+using MaxEffort.Code.Core;
+
+namespace MaxEffort.Code.Systems;
+
+[GlobalClass]
+public partial class PlayerInputSystem : Node
+{
+    private const string LiftAction = "lift_action";
+    
+    public override void _Process(double delta)
+    {
+        if (Input.IsActionPressed(LiftAction))
+        {
+            EventBus.PublishLiftEffortApplied((float)delta);
+        }
+        
+        if (Input.IsActionJustReleased(LiftAction))
+        {
+            EventBus.PublishFocusRelease();
+        }
+    }
+}