//----------------------------------------------------------------------------
static private void OnListenerRemoved(DgMsgID eventType)
{
if (eventTable[(int)eventType] == null)
{
eventTable.Remove((int)eventType);
}
}
//----------------------------------------------------------------------------
//No parameters
//----------------------------------------------------------------------------
static public void RemoveListener(DgMsgID eventType, Callback handler)
{
if (eventTable.ContainsKey((int)eventType))
{
OnListenerRemoving(eventType, handler);
eventTable[(int)eventType] = (Callback)eventTable[(int)eventType] - handler;
OnListenerRemoved(eventType);
}
}
//Three parameters
//----------------------------------------------------------------------------
static public void Broadcast <T, U, V>(DgMsgID eventType, T arg1, U arg2, V arg3)
{
Delegate d;
if (eventTable.TryGetValue((int)eventType, out d))
{
(d as Callback <T, U, V>)?.Invoke(arg1, arg2, arg3);
}
else
{
CreateBroadcastSingnatureException(eventType);
}
}
//----------------------------------------------------------------------------
#region Broadcast
//No parameters
//----------------------------------------------------------------------------
static public void Broadcast(DgMsgID eventType)
{
Delegate d;
if (eventTable.TryGetValue((int)eventType, out d))
{
(d as Callback)?.Invoke();
}
else
{
CreateBroadcastSingnatureException(eventType);
}
}
//----------------------------------------------------------------------------
#endregion
//----------------------------------------------------------------------------
#region OnListenerAdding
static private void OnListenerAdding(DgMsgID eventType, Delegate listenerBeingAdded)
{
if (!eventTable.ContainsKey((int)eventType))
{
eventTable.Add((int)eventType, null);
}
Delegate d = eventTable[(int)eventType];
if (d != null && d.GetType() != listenerBeingAdded.GetType())
{
Debug.LogError(string.Format("Attempting to add listener with inconsistent signature for event type {0}. " + "Current listeners have type {1} and listener being added has type {2}", eventType, d.GetType().Name, listenerBeingAdded.GetType().Name));
}
}
//----------------------------------------------------------------------------
static private void OnListenerRemoving(DgMsgID eventType, Delegate listenerBeingRemoved)
{
if (eventTable.ContainsKey((int)eventType))
{
Delegate d = eventTable[(int)eventType];
if (d == null)
{
Debug.LogWarning(string.Format("Attempting to remove listener with for event type \"{0}\" but current listener is null.", eventType));
}
else if (d.GetType() != listenerBeingRemoved.GetType())
{
Debug.LogWarning(string.Format("Attempting to remove listener with inconsistent signature for event type {0}. Current listeners have type {1} and listener being removed has type {2}", eventType, d.GetType().Name, listenerBeingRemoved.GetType().Name));
}
}
else
{
Debug.LogWarning(string.Format("Attempting to remove listener for type \"{0}\" but Messenger doesn't know about this event type.", eventType));
}
}
//One parameters
//----------------------------------------------------------------------------
static public void RemoveListener <T>(DgMsgID eventType, Callback <T> handler)
{
OnListenerRemoving(eventType, handler);
eventTable[(int)eventType] = (Callback <T>)eventTable[(int)eventType] - handler;
OnListenerRemoved(eventType);
}
//Three parameters
//----------------------------------------------------------------------------
static public void AddListener <T, U, V>(DgMsgID eventType, Callback <T, U, V> handler)
{
OnListenerAdding(eventType, handler);
eventTable[(int)eventType] = (Callback <T, U, V>)eventTable[(int)eventType] + handler;
}
//----------------------------------------------------------------------------
#endregion
#region CreateBroadcastSingnatureException
//----------------------------------------------------------------------------
static public void CreateBroadcastSingnatureException(DgMsgID eventType)
{
Debug.LogError(string.Format("Broadcasting message \"{0}\" but listeners have a different signature than the broadcaster.", eventType));
}