began the dialog system

src/scene-scripts/gui/dialog_object_area.cs

@@ -0,0 +1,26 @@
+using Godot;
+using System;
+using System.Runtime.CompilerServices;
+
+public partial class dialog_object_area : Area2D
+{
+    [Export]
+    public string dialogKey = "";
+    public bool areaActive = false;
+
+    public override void _Input(InputEvent @event)
+    {
+        if(areaActive && @event.IsActionPressed("ui_accept"))
+        {
+            EmitSignal("DialogDisplayEventHandler", dialogKey);
+        }
+    }
+    public void onAreaEntered()
+    {
+        areaActive = true;
+    }
+    public void onAreaExited()
+    {
+        areaActive = false;
+    }
+}

src/signal_bus.cs

@@ -0,0 +1,8 @@
+using Godot;
+using System;
+
+public partial class signal_bus : Node
+{
+    [Signal]
+    public delegate void DialogDisplayEventHandler(string textKey);
+}