/// <summary>
/// Sets the callback information for this schedule.
/// </summary>
/// <param name="methodToCall">The delegate to trigger.</param>
/// <param name="dataToSend">Data to pass.</param>
public CallbackInformation(ScheduledEventDelegate methodToCall, object dataToSend)
{
MethodToCall = methodToCall;
DataToSend = dataToSend;
EventId = 0;
}
/// <summary>
/// Schedule a method to execute at a specific time.
/// </summary>
/// <param name="deltaTime">The amount of time in milliseconds into the future you wish this method to be invoked.
/// The actual game-time may be slightly later than when you specify (but never earlier).
/// <para>Value must be greater than zero.</para></param>
/// <param name="methodToCall">The method you wish to invoke.</param>
/// <param name="dataToSend">Any object, this will be sent to the specified method in the SecheduleEventArguments.</param>
public int Schedule(int deltaTime, ScheduledEventDelegate methodToCall, object dataToSend)
{
Assert.Fatal(deltaTime >= 0, "Time can't go backwards");
int targetTime = _currentTime + deltaTime;
CallbackInformation toSchedule = new CallbackInformation(methodToCall, dataToSend);
toSchedule.EventId = ++_nextEventId;
LinkedListNode<KeyValuePair<int, CallbackInformation>> currentNode = this._scheduledEvents.First;
while (currentNode != null)
{
if (currentNode.Value.Key == targetTime)
{
currentNode.List.AddAfter(currentNode, new KeyValuePair<int, CallbackInformation>(targetTime, toSchedule));
return toSchedule.EventId;
}
if (currentNode.Value.Key > targetTime)
{
currentNode.List.AddBefore(currentNode, new KeyValuePair<int, CallbackInformation>(targetTime, toSchedule));
return toSchedule.EventId;
}
currentNode = currentNode.Next;
}
this._scheduledEvents.AddLast(new KeyValuePair<int, CallbackInformation>(targetTime, toSchedule));
return toSchedule.EventId;
}
/// <summary>
/// Schedule a method to execute at a specific time.
/// </summary>
/// <param name="deltaTime">The amount of time in milliseconds into the future you wish this method to be invoked.
/// The actual game-time may be slightly later than when you specify (but never earlier).
/// <para>Value must be greater than zero.</para></param>
/// <param name="methodToCall">The method you wish to invoke.</param>
public int Schedule(int deltaTime, ScheduledEventDelegate methodToCall)
{
return this.Schedule(deltaTime, methodToCall, null);
}
/// <summary>
/// Remove a scheduled method at a specific time.
/// <para>If the same method has multiple schedules for the same time, the first occurance is removed. (call this multiple times to remove multiple occurances)</para>
/// </summary>
/// <returns>false if unable to remove a scheduled method (due to it not existing at the time given)</returns>
public bool Remove(int time, ScheduledEventDelegate methodToCall)
{
LinkedListNode<KeyValuePair<int, CallbackInformation>> currentNode = this._scheduledEvents.First;
while (currentNode != null)
{
if (currentNode.Value.Key < time)
{
currentNode = currentNode.Next;
continue;
}
if (currentNode.Value.Key > time)
return false;
CallbackInformation methodInfo = currentNode.Value.Value;
if (methodToCall.Equals(methodInfo.MethodToCall))
{
LinkedListNode<KeyValuePair<int, CallbackInformation>> toRemove = currentNode;
currentNode = currentNode.Next;
this._scheduledEvents.Remove(toRemove);
return true;
}
else
currentNode = currentNode.Next;
}
return false;
}
