// This code is part of the Fungus library (https://github.com/snozbot/fungus)
// It is released for free under the MIT open source license (https://github.com/snozbot/fungus/blob/master/LICENSE)
using UnityEngine;
using System.Collections.Generic;
namespace Fungus
{
///
/// The block will execute when the player starts dragging an object.
///
[EventHandlerInfo("Sprite",
"Drag Started",
"The block will execute when the player starts dragging an object.")]
[AddComponentMenu("")]
public class DragStarted : EventHandler
{
public class DragStartedEvent
{
public Draggable2D DraggableObject;
public DragStartedEvent(Draggable2D draggableObject)
{
DraggableObject = draggableObject;
}
}
[SerializeField] protected VariableReference draggableRef;
[SerializeField] protected List draggableObjects;
[HideInInspector]
[SerializeField] protected Draggable2D draggableObject;
protected EventDispatcher eventDispatcher;
protected virtual void OnEnable()
{
eventDispatcher = FungusManager.Instance.EventDispatcher;
eventDispatcher.AddListener(OnDragStartedEvent);
}
///
/// Called when the script is loaded or a value is changed in the
/// inspector (Called in the editor only).
///
void OnValidate()
{
//add any dragableobject already present to list for backwards compatability
if(draggableObject!=null){
if(!draggableObjects.Contains(draggableObject)){
draggableObjects.Add(draggableObject);
}
}
}
protected virtual void OnDisable()
{
eventDispatcher.RemoveListener(OnDragStartedEvent);
eventDispatcher = null;
}
void OnDragStartedEvent(DragStartedEvent evt)
{
OnDragStarted(evt.DraggableObject);
}
#region Public members
///
/// Called by the Draggable2D object when the drag starts.
///
public virtual void OnDragStarted(Draggable2D draggableObject)
{
if (draggableObjects.Contains(draggableObject))
{
draggableRef.Set(draggableObject.gameObject);
ExecuteBlock();
}
}
public override string GetSummary()
{
string summary = "Draggable: ";
if (this.draggableObjects != null && this.draggableObjects.Count != 0)
{
for (int i = 0; i < this.draggableObjects.Count; i++)
{
if (draggableObjects[i] != null)
{
summary += draggableObjects[i].name + ",";
}
}
}
if (summary.Length == 0)
{
return "None";
}
return summary;
}
#endregion
}
}