added prices to remix

drag_n_drop_container.gd

@@ -0,0 +1,84 @@
+class_name DragNDropContainer
+extends MarginContainer
+
+signal dropped(dropped_node: Control, dropped_from: DragNDropContainer)
+
+@export var panel: PanelContainer
+@export var panel_label: Label
+@export var finite_contents: bool = true
+@export var contents: Control
+@export var drag_parent: Node
+
+var dragging: bool = false
+var drag_node: Control
+
+
+func _ready() -> void:
+	if contents:
+		panel.move_to_front()
+		panel.visible = false
+
+
+func _process(_delta: float) -> void:
+	if dragging:
+		drag_node.position = get_viewport().get_mouse_position()
+
+
+func _gui_input(event: InputEvent) -> void:
+	if event is InputEventMouseButton:
+		if event.pressed == true and event.button_index == 1:
+			start_drag()
+		if event.pressed == false and event.button_index == 1:
+			end_drag()
+
+
+func set_label(text: String) -> void:
+	panel_label.text = text
+
+
+func set_immutable_contents(new_contents: Control) -> void:
+	if contents:
+		remove_child(contents)
+		contents = null
+	finite_contents = false
+	contents = new_contents.duplicate()
+	add_child(contents)
+	panel.move_to_front()
+	panel.visible = false
+
+
+func add_contents(new_contents: Control) -> void:
+	if finite_contents:
+		remove_contents()
+		contents = new_contents.duplicate()
+		add_child(contents)
+		panel.move_to_front()
+		panel.visible = false
+
+
+func remove_contents() -> void:
+	if finite_contents:
+		remove_child(contents)
+		contents = null
+		panel.visible = true
+
+
+func start_drag() -> void:
+	if !contents:
+		return
+	drag_node = contents.duplicate()
+	drag_parent.add_child(drag_node)
+	drag_node.size = Vector2.ZERO
+	drag_node.mouse_filter = Control.MOUSE_FILTER_IGNORE
+	panel.visible = true
+	panel_label.visible = false
+	dragging = true
+
+
+func end_drag() -> void:
+	if !contents:
+		return
+	panel.visible = false
+	dragging = false
+	dropped.emit(drag_node, self)
+	drag_node.queue_free()