add: Selectable Tile Map Layer/Mouse Controlled Camera

Package/embedded/GlobalClasses/Nodes/Cameras/MouseControlledCamera.cs

@@ -0,0 +1,48 @@
+
+using Godot;
+using Polonium.Attributes;
+
+// ReSharper disable once CheckNamespace
+namespace GlobalClasses;
+[ProxyNode]
+[GlobalClass]
+[Tool]
+public partial class MouseControlledCamera : Camera2D
+{
+    private Vector2 DragStartPosition { get; set; }
+    private bool IsDragging { get; set; }
+    [Signal]
+    public delegate void ZoomInEventHandler();
+    [Signal]
+    public delegate void ZoomOutEventHandler();
+
+    [Export]
+    public MouseButton DragButton { get; set; } = MouseButton.Middle;
+
+    public override void _UnhandledInput(InputEvent @event)
+    {
+        if (@event is InputEventMouseButton mouseButtonEvent)
+        {
+            if(mouseButtonEvent.ButtonIndex == MouseButton.WheelUp)
+                EmitSignalZoomIn();
+            else if(mouseButtonEvent.ButtonIndex == MouseButton.WheelDown)
+                EmitSignalZoomOut();
+            else if (mouseButtonEvent.ButtonIndex == DragButton)
+            {
+                IsDragging = mouseButtonEvent.Pressed;
+                if(IsDragging)
+                    DragStartPosition = GetGlobalMousePosition();
+            }
+        }
+        else if (@event is InputEventMouseMotion mouseMotionEvent && IsDragging)
+        {
+            Vector2 mousePos = GetGlobalMousePosition();
+            Vector2 offset = DragStartPosition - mousePos;
+            Position += offset;
+            DragStartPosition = mousePos;
+        }
+
+
+    }
+
+}

Package/embedded/GlobalClasses/Nodes/Scenes/CameraScene.cs

@@ -7,12 +7,12 @@ namespace GlobalClasses;
 [Tool]
 public partial class CameraScene : Scene
 {
-    private Camera2D Camera { get; set; }
-
+    protected Camera2D Camera { get; set; }
+    [Export]
     public float MaxZoom { get; set; }
-
+    [Export]
     public float MinZoom { get; set; }
-
+    [Export]
     public float ZoomRate { get; set; }
 
     private float Zoom
@@ -26,13 +26,18 @@ public partial class CameraScene : Scene
     {
     }
 
-    public sealed override void _Ready()
+    protected virtual void _Ready_()
     {
         Camera = GetNode<Camera2D>("Camera");
+    }
+
+    public sealed override void _Ready()
+    {
+        _Ready_();
         __Ready();
         base._Ready();
     }
-    protected void ZoomIn() => Zoom = Mathf.Max(Zoom * (1 + ZoomRate), MaxZoom);
-    protected void ZoomOut() => Zoom = Mathf.Min(Zoom * (1 - ZoomRate), MinZoom);
+    protected void ZoomIn() => Zoom = Mathf.Min(Zoom * (1 + ZoomRate), MaxZoom);
+    protected void ZoomOut() => Zoom = Mathf.Max(Zoom * (1 - ZoomRate), MinZoom);
     protected void ZoomAt(Vector2 pos) => Camera.Position = pos;
 }

Package/embedded/GlobalClasses/Nodes/Scenes/MouseControlledCameraScene.cs

@@ -0,0 +1,24 @@
+
+using Godot;
+using Polonium.Attributes;
+// ReSharper disable once CheckNamespace
+
+namespace GlobalClasses;
+[ProxyNode]
+[GlobalClass]
+[Tool]
+public partial class MouseControlledCameraScene : CameraScene
+{
+    protected new MouseControlledCamera Camera
+    {
+        get => base.Camera as MouseControlledCamera;
+        set => base.Camera = value;
+    }
+
+    protected sealed override void _Ready_()
+    {
+        Camera = GetNode<MouseControlledCamera>("Camera");
+        Camera.ZoomIn += ZoomIn;
+        Camera.ZoomOut += ZoomOut;
+    }
+}

Package/embedded/GlobalClasses/Nodes/TileMapLayers/SelectableTileMapLayer.cs

@@ -0,0 +1,42 @@
+using Godot;
+using Polonium.Attributes;
+
+namespace GlobalClasses;
+[ProxyNode]
+[GlobalClass]
+[Tool]
+public partial class SelectableTileMapLayer : TileMapLayer
+{
+    [Signal]
+    public delegate void CellSelectedEventHandler(Vector2I pos);
+
+    [Signal]
+    public delegate void CellEnteredEventHandler(Vector2I pos);
+    private Vector2I HoveredCell { get; set; } = new Vector2I(-1, -1);
+
+    public sealed override void _Process(double delta)
+    {
+        
+        Vector2 mousePos = GetGlobalMousePosition();
+        Vector2 localMousePos = ToLocal(mousePos);
+        Vector2I cell = LocalToMap(localMousePos);
+        if(cell != HoveredCell)
+        {
+            EmitSignalCellEntered(cell);
+            HoveredCell = cell;
+        }
+        __Process(delta);
+        base._Process(delta);
+    }
+    
+    public override void _UnhandledInput(InputEvent @event)
+    {
+        if (@event is InputEventMouseButton mouseEvent)
+            if (mouseEvent.ButtonIndex == MouseButton.Left && mouseEvent.Pressed)
+                EmitSignalCellSelected(HoveredCell);
+    }
+    [ProxyMethod]
+    public virtual void __Process(double delta)
+    {
+    }
+}