forgot to push for a while, got drag-and-drop mostly working

PictureDropHandler.cs

@@ -0,0 +1,34 @@
+using Godot;
+using System;
+using System.Collections;
+using System.Collections.Generic;
+
+public partial class PictureDropHandler : Control
+{
+	// Called when the node enters the scene tree for the first time.
+	public override void _Ready()
+	{
+		GetTree().Root.FilesDropped += HandleDroppedFiles;
+	}
+
+	// Called every frame. 'delta' is the elapsed time since the previous frame.
+	public override void _Process(double delta)
+	{
+	}
+	public void HandleDroppedFiles(IEnumerable<string> paths)
+	{
+		//var cont = GetNode<HFlowContainer>("%UnassignedCardContainer");
+		var g = GetNode<game>("/root/Game");
+		foreach (var path in paths)
+		{
+			var img = new Image();
+			img.Load(path);
+			var tex = ImageTexture.CreateFromImage(img);
+			if (tex is null)
+				continue;
+			var c = card.MakeCard(GetTree());
+			c.SetImage(tex);
+			g.AddUnassignedCard(c);
+		}
+	}
+}