///<summary>
///this methods checks to see if there is an existing record for the
///given key. If not a new <see cref="NavigationalMemoryRecord"/>
///record is made and added to the memory map.
/// </summary>
private void MakeNewRecordIfNotAlreadyPresent(NavigationalMemoryKey key)
{
//check to see if this key already exists in memory. If it doesn't,
//create a new record
if (!MemoryMap.ContainsKey(key))
{
MemoryMap[key] = new NavigationalMemoryRecord(Owner, key);
}
}
///<summary>
///Remember this
///</summary>
///<param name="mode"></param>
///<param name="status"></param>
///<param name="sourceNodeIndex"></param>
///<param name="destinationNodeIndex"></param>
///<param name="timeTaken"></param>
///<param name="timeExpected"></param>
public void RecordTimeTaken(
TravelModes mode,
TravelStatuses status,
int sourceNodeIndex,
int destinationNodeIndex,
float timeTaken,
float timeExpected)
{
NavigationalMemoryKey key =
new NavigationalMemoryKey(
mode,
sourceNodeIndex,
destinationNodeIndex);
MakeNewRecordIfNotAlreadyPresent(key);
NavigationalMemoryRecord record = MemoryMap[key];
switch (status)
{
case TravelStatuses.Completed:
record.CompletedCount++;
record.RunningAverageTimeTaken +=
(timeTaken - record.RunningAverageTimeTaken)/
record.CompletedCount;
record.CompletedMarginRunningAverage +=
(timeExpected - timeTaken -
record.CompletedMarginRunningAverage)/
record.CompletedCount;
break;
case TravelStatuses.Failed:
record.FailedCount++;
float estimatedRemainingTime;
Owner.CalculateTimeToReachNode(
destinationNodeIndex,
out estimatedRemainingTime);
record.FailedMarginRunningAverage +=
(estimatedRemainingTime -
record.FailedMarginRunningAverage)/
record.FailedCount;
break;
case TravelStatuses.Abandoned:
Assert.Fatal(false,
"NavigationalMemory,RecordTimeTaken: " +
"abandoned status not implemented yet.");
break;
}
record.CompletedPerSecond = record.CompletedCount/Time.TimeNow;
record.FailedPerSecond = record.FailedCount/Time.TimeNow;
LogUtil.WriteLineIfLogNavigationalMemory(
"NavigationalMemory.RecordTimeTaken: " + record);
DumpMemory(DumpFrequency);
}
///<summary>
///Get time to reach destination from current position
///</summary>
///<param name="destination"></param>
///<param name="time"></param>
///<returns></returns>
public bool TimeToReachDestination(Vector2 destination, out float time)
{
int sourceNodeIndex =
Owner.PathPlanner.GetClosestNodeToPosition(Owner.Position);
int destinationNodeIndex =
Owner.PathPlanner.GetClosestNodeToPosition(destination);
NavigationalMemoryKey key =
new NavigationalMemoryKey(
TravelModes.FollowPath,
sourceNodeIndex,
destinationNodeIndex);
MakeNewRecordIfNotAlreadyPresent(key);
NavigationalMemoryRecord record = MemoryMap[key];
time = record.RunningAverageTimeTaken;
LogUtil.WriteLineIfLogNavigationalMemory(
"NavigationalMemory.TimeToReachDestination: " + record);
return record.CompletedCount == 0; //if zero, time was calculated
}
///<summary>
///Sets a reference to a particular memory for ease of access (to avoid
///multiple lookups).
///</summary>
///<param name="mode"></param>
///<param name="sourceNodeIndex"></param>
///<param name="destinationNodeIndex"></param>
public void MakeCurrent(
TravelModes mode,
int sourceNodeIndex,
int destinationNodeIndex)
{
NavigationalMemoryKey key =
new NavigationalMemoryKey(
mode,
sourceNodeIndex,
destinationNodeIndex);
MakeNewRecordIfNotAlreadyPresent(key);
Current = MemoryMap[key];
}