fungus/Assets/Fungus/Flowchart/Scripts/Commands/SpawnObject.cs

using UnityEngine;
using UnityEngine.Serialization;
using System.Collections;

namespace Fungus
{
	// This command is called "Call Method" because a) it's more descriptive than Send Message and we're already have
	// a Send Message command for sending messages to trigger block execution.

	[CommandInfo("Scripting", 
	             "Spawn Object", 
	             "Spawns a new object based on a reference to a scene or prefab game object.")]
	[AddComponentMenu("")]
	public class SpawnObject : Command, ISerializationCallbackReceiver
	{
		[Tooltip("Game object to copy when spawning. Can be a scene object or a prefab.")]
		public GameObjectData _sourceObject;

		[Tooltip("Transform to use for position of newly spawned object.")]
		public TransformData _parentTransform;

		[Tooltip("Local position of newly spawned object.")]
		public Vector3Data _spawnPosition;

		[Tooltip("Local rotation of newly spawned object.")]
		public Vector3Data _spawnRotation;

		public override void OnEnter()
		{
			if (_sourceObject.Value == null)
			{
				Continue();
				return;
			}

			GameObject newObject = GameObject.Instantiate(_sourceObject.Value);
			if (_parentTransform.Value != null)
			{
				newObject.transform.parent = _parentTransform.Value;
			}

			newObject.transform.localPosition = _spawnPosition.Value;
			newObject.transform.localRotation = Quaternion.Euler(_spawnRotation.Value);

			Continue();
		}

		public override string GetSummary()
		{
			if (_sourceObject.Value == null)
			{
				return "Error: No source GameObject specified";
			}

			return _sourceObject.Value.name;
		}
		
		public override Color GetButtonColor()
		{
			return new Color32(235, 191, 217, 255);
		}

		#region Backwards compatibility

		[HideInInspector] [FormerlySerializedAs("sourceObject")] public GameObject sourceObjectOLD;
		[HideInInspector] [FormerlySerializedAs("parentTransform")] public Transform parentTransformOLD;
		[HideInInspector] [FormerlySerializedAs("spawnPosition")] public Vector3 spawnPositionOLD;
		[HideInInspector] [FormerlySerializedAs("spawnRotation")] public Vector3 spawnRotationOLD;

		public virtual void OnBeforeSerialize()
		{}

		public virtual void OnAfterDeserialize()
		{
			if (sourceObjectOLD != null)
			{
				_sourceObject.Value = sourceObjectOLD;
				sourceObjectOLD = null;
			}
			if (parentTransformOLD != null)
			{
				_parentTransform.Value = parentTransformOLD;
				parentTransformOLD = null;
			}
			if (spawnPositionOLD != default(Vector3))
			{
				_spawnPosition.Value = spawnPositionOLD;
				spawnPositionOLD = default(Vector3);
			}
			if (spawnRotationOLD != default(Vector3))
			{
				_spawnRotation.Value = spawnRotationOLD;
				spawnRotationOLD = default(Vector3);
			}
		}

		#endregion
	}

}