ObjectSpawner.cs

using UnityEngine;
using Janus;
using System.Collections;
using System.Collections.Generic;
using System.Linq;

[AddComponentMenu("Liberi/Object Spawner")]
[RequireComponent(typeof(AudioSource))]
public class ObjectSpawner : MonoBehaviour
{
    public GameObject[] SpawnedObjects
    {
        get { return _spawnedObjects.Where(obj => obj != null).ToArray(); }
    }

    public GameObject ObjectPrefab;
    public GameObject AlternatePrefab;
    [Range (0, 1)] public float AlternatePrefabChance;
    public GameObject SpawnEffectPrefab;
    public AudioClip SpawnSound;
    public UJeli ObjectSpawnDetails;
    public Texture2D GizmoTexture;
    public bool SpawnImmediately;

    Timeline<bool> _spawnEvents;
    List<GameObject> _spawnedObjects;

    void Awake ()
    {
        _spawnEvents = Sync.CreateEvent<bool>();
        _spawnedObjects = new List<GameObject>();
    }

    void OnDrawGizmos ()
    {
        if (GizmoTexture != null)
            Gizmos.DrawIcon(transform.position, GizmoTexture.name, true);
    }

    void OnSpawn ()
    {
        if (Game.IsClient)
            _spawnEvents.EntryPassed += OnSpawnEvent;
            
        if (Game.IsServer && SpawnImmediately)
            SpawnObject();
    }

    public GameObject SpawnObject ()
    {
        if (Sync.IsServer && ObjectPrefab != null)
        {
            GameObject prefab = ObjectPrefab;
        
            if (AlternatePrefab != null)
                prefab = Random.Range(0.0f, 1.0f) > AlternatePrefabChance ? ObjectPrefab : AlternatePrefab;
        
            GameObject go = Sync.Spawn(prefab, transform.position, 0, ObjectSpawnDetails);
            go.transform.rotation = transform.rotation;
            
            if (go != null)
            {
                go.GetComponent<Sync>().Despawned += OnObjectDespawned;
                _spawnedObjects.Add(go);
                _spawnEvents[0] = true;
            }

            return go;
        }
        else return null;
    }

    public void DespawnAllObjects ()
    {
        foreach (var mob in _spawnedObjects.ToArray())
        {
            if (mob != null)
                Sync.Despawn(mob);
        }
    }

    void OnObjectDespawned (GameObject go)
    {
        _spawnedObjects.Remove(go);
    }

    void OnSpawnEvent (Timeline<bool> timeline, TimelineEntry<bool> entry)
    {
        if (Sync.IsClient)
        {
            if (SpawnEffectPrefab != null)
                Sync.SpawnLocal(SpawnEffectPrefab, transform.position);

            if (SpawnSound != null)
                this.PlayPooledSound(SpawnSound);
        }
    }
}