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

card.cs

@@ -0,0 +1,127 @@
+using Godot;
+using System;
+
+public partial class card : Control
+{
+	[Export]
+	private string _CardName;
+	public string CardName
+	{
+		get => _CardName;
+		set
+		{
+			_CardName = value;
+			if (IsNodeReady())
+				PropogateCardName();
+		}
+	}
+	private void PropogateCardName()
+	{
+		GetNode<Label>("CardNameLabel").Text = _CardName;
+	}
+	[Export]
+	private string _CardId;
+	public string CardId
+	{
+		get => _CardId;
+		set
+		{
+			_CardId = value;
+			if (IsNodeReady())
+				PropogateCardId();
+		}
+	}
+	private void PropogateCardId()
+	{
+		GetNode<Label>("%CardIdLabel").Text = _CardId;
+	}
+	private Texture2D _Texture;
+	public void SetTexture(Texture2D texture)
+	{
+		_Texture = texture;
+		if (IsNodeReady())
+			PropogateTexture();
+	}
+	private void PropogateTexture()
+	{
+		if (_Texture is not null)
+		{
+			GetNode<TextureRect>("%CardImage").Texture = _Texture;
+			_Texture = null;
+		}
+	}
+	public Texture2D GetTexture()
+		=> GetNode<TextureRect>("%CardImage").Texture;
+	public Vector2 Center
+		=> Size / 2;
+	// Called when the node enters the scene tree for the first time.
+	public override void _Ready()
+	{
+		PropogateCardName();
+		PropogateCardId();
+		PropogateTexture();
+	}
+
+	// Called every frame. 'delta' is the elapsed time since the previous frame.
+	public override void _Process(double delta)
+	{
+	}
+    public override Variant _GetDragData(Vector2 atPosition)
+    {
+		GD.Print($"starting to drag {CardId}");
+        var prev = card_preview.MakePreview(this);
+		var prev_root = new Control();
+		//prev.Position = atPosition;
+		prev.Position = prev.Size / -2;
+		prev_root.AddChild(prev);
+		SetDragPreview(prev_root);
+		return this;
+    }
+    public void SetImage(Texture2D texture)
+	{
+		Ready += () => InnerSetImage(texture);
+		if (IsNodeReady())
+			InnerSetImage(texture);
+	}
+	//only called while ready
+	private void InnerSetImage(Texture2D texture)
+	{
+		var node = GetNode<TextureRect>("%CardImage");
+		node.Texture = texture;
+	}
+	// private void HandleInput(InputEvent @event)
+	// {
+	// 	if (@event is InputEventMouseButton iemb)
+	// 	{
+	// 		if (iemb.ButtonIndex == MouseButton.Left)
+	// 		{
+	// 			if (iemb.Pressed)
+	// 			{
+	// 				InputSingleton.Instance.ClickedOn = this;
+	// 				StartDrag();
+	// 			}
+	// 			else
+	// 			{
+	// 				InputSingleton.Instance.ClickedOn = null;
+	// 				StopDrag();
+	// 			}
+				
+	// 		}
+	// 	}
+	// }
+	// private void StartDrag()
+	// {
+
+	// }
+	// private void StopDrag()
+	// {
+
+	// }
+	public static card MakeCard(SceneTree tree)
+	{
+		var scene = GD.Load<PackedScene>("res://card.tscn");
+		var c = scene.Instantiate<card>();
+		c.CardId = tree.GetUnusedCardId();
+		return c;
+	}
+}