Editor slight refactor

addons/pvzadventure/scripts/zombie-editor/ZE_AssetBrowserButton.cs

@@ -0,0 +1,24 @@
+using Godot;
+using Newlon.Resources;
+
+
+[Tool]
+public partial class ZE_AssetBrowserButton : PanelContainer
+{
+	private ZombieResource resource;
+	public void SetData(ZombieResource data)
+	{
+		resource = data;
+		UpdateContent();
+	}
+	private void UpdateContent()
+	{
+		GetNode<TextureRect>("Texture").Texture = resource.Preview;
+	}
+
+    public override Variant _GetDragData(Vector2 atPosition)
+    {
+		return resource;
+    }
+
+}