Detects drag and drop interactions on a Game Object, and sends events to all Flowchart event handlers in the scene. The Game Object must have Collider2D & RigidBody components attached. The Collider2D must have the Is Trigger property set to true. The RigidBody would typically have the Is Kinematic property set to true, unless you want the object to move around using physics. Use in conjunction with the Drag Started, Drag Completed, Drag Cancelled, Drag Entered & Drag Exited event handlers.