Rename Pickable to Draggable and add the drag and drop methods

behaviours/draggable.gd

@@ -0,0 +1,19 @@
+extends Node
+class_name Draggable
+
+
+signal dragged
+signal dropped
+
+
+var being_dragged: bool = false
+
+
+func drag():
+	being_dragged = true
+	dragged.emit()
+
+
+func drop():
+	being_dragged = false
+	dropped.emit()

behaviours/draggable.tscn

@@ -0,0 +1,6 @@
+[gd_scene load_steps=2 format=3 uid="uid://dijcjahkddudv"]
+
+[ext_resource type="Script" path="res://behaviours/draggable.gd" id="1_hdedq"]
+
+[node name="Draggable" type="Node"]
+script = ExtResource("1_hdedq")

behaviours/pickable.gd

@@ -1,2 +0,0 @@
-extends Node
-class_name Pickable

behaviours/pickable.tscn

@@ -1,6 +0,0 @@
-[gd_scene load_steps=2 format=3 uid="uid://dijcjahkddudv"]
-
-[ext_resource type="Script" path="res://behaviours/pickable.gd" id="1_ymn8e"]
-
-[node name="Pickable" type="Node"]
-script = ExtResource("1_ymn8e")