Initial data

addons/pvzadventure/scripts/UNI_GridItem.cs

@@ -1,15 +1,46 @@
 using Godot;
-using System;
 
+[Tool]
 public partial class UNI_GridItem : PanelContainer
 {
-	// Called when the node enters the scene tree for the first time.
-	public override void _Ready()
+	private string path;
+	public int index;
+	[Signal] public delegate void ResourceChangedEventHandler(string path, int index);
+	public void SetData(string data)
 	{
+		path = data;
+		UpdateContent();
+	}
+	private void UpdateContent()
+	{
+		if (path == null || path == "")
+		{
+			GetNode<TextureRect>("Texture").Texture = null;
+			return;
+		}
+		GetNode<TextureRect>("Texture").Call("set_path", path);
 	}
 
-	// Called every frame. 'delta' is the elapsed time since the previous frame.
-	public override void _Process(double delta)
+	public override Variant _GetDragData(Vector2 atPosition)
 	{
+		return path;
 	}
+	public override bool _CanDropData(Vector2 atPosition, Variant data)
+	{
+		return data.AsGodotDictionary<string, string>().ContainsKey("files") && ResourceLoader.Exists(data.AsGodotDictionary<string, Variant>()["files"].AsStringArray()[0]);
+	}
+	public override void _DropData(Vector2 atPosition, Variant data)
+	{
+		SetData(data.AsGodotDictionary<string, Variant>()["files"].AsStringArray()[0]);
+		EmitSignal(SignalName.ResourceChanged, path, index);
+
+    }
+	public override void _GuiInput(InputEvent @event)
+	{
+		if (@event is InputEventMouseButton buttonEvent && buttonEvent.ButtonIndex == MouseButton.Right )
+		{
+			SetData(null);
+			EmitSignal(SignalName.ResourceChanged, path, index);
+		}
+    }
 }