Created
May 4, 2016 17:55
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using System; | |
using System.Collections.Generic; | |
using System.Linq; | |
using System.Threading; | |
using UnityEngine; | |
public class Loom : MonoBehaviour | |
{ | |
public static int maxThreads = 8; | |
static Loom _current; | |
static bool initialized; | |
static int numThreads; | |
List<Action> _actions = new List<Action>(); | |
List<Action> _currentActions = new List<Action>(); | |
List<DelayedQueueItem> _currentDelayed = new List<DelayedQueueItem>(); | |
List<DelayedQueueItem> _delayed = new List<DelayedQueueItem>(); | |
public static Loom Current | |
{ | |
get | |
{ | |
Initialize(); | |
return _current; | |
} | |
} | |
public static void QueueOnMainThread(Action action) | |
{ | |
QueueOnMainThread(action, 0f); | |
} | |
public static void QueueOnMainThread(Action action, float time) | |
{ | |
if (!Mathf.Approximately(time, 0)) | |
{ | |
lock (Current._delayed) | |
{ | |
Current._delayed.Add(new DelayedQueueItem { time = Time.time + time, action = action }); | |
} | |
} | |
else | |
{ | |
lock (Current._actions) | |
{ | |
Current._actions.Add(action); | |
} | |
} | |
} | |
public static Thread RunAsync(Action a) | |
{ | |
Initialize(); | |
while (numThreads >= maxThreads) | |
{ | |
Thread.Sleep(1); | |
} | |
Interlocked.Increment(ref numThreads); | |
ThreadPool.QueueUserWorkItem(RunAction, a); | |
return null; | |
} | |
static void Initialize() | |
{ | |
if (!initialized) | |
{ | |
if (!Application.isPlaying) | |
return; | |
initialized = true; | |
var g = new GameObject("Loom"); | |
_current = g.AddComponent<Loom>(); | |
} | |
} | |
static void RunAction(object action) | |
{ | |
try | |
{ | |
((Action)action)(); | |
} | |
finally | |
{ | |
Interlocked.Decrement(ref numThreads); | |
} | |
} | |
void Awake() | |
{ | |
_current = this; | |
initialized = true; | |
} | |
void OnDisable() | |
{ | |
if (_current == this) | |
{ | |
_current = null; | |
} | |
} | |
void Update() | |
{ | |
lock (_actions) | |
{ | |
_currentActions.Clear(); | |
_currentActions.AddRange(_actions); | |
_actions.Clear(); | |
} | |
foreach (var a in _currentActions) | |
{ | |
a(); | |
} | |
lock (_delayed) | |
{ | |
_currentDelayed.Clear(); | |
_currentDelayed.AddRange(_delayed.Where(d => d.time <= Time.time)); | |
foreach (var item in _currentDelayed) | |
_delayed.Remove(item); | |
} | |
foreach (var delayed in _currentDelayed) | |
{ | |
delayed.action(); | |
} | |
} | |
public struct DelayedQueueItem | |
{ | |
public Action action; | |
public float time; | |
} | |
} |
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