/// <summary>
/// Returns the data entry to the pool.
/// </summary>
private void ReturnToPool(LexiconFocusData data)
{
List <LexiconFocusData> dataPool;
if (focusDataPool.TryGetValue(data.GetType(), out dataPool))
{
dataPool.Add(data);
}
else
{
List <LexiconFocusData> newPool = new List <LexiconFocusData>();
newPool.Add(data);
focusDataPool.Add(data.GetType(), newPool);
}
}
/// <summary>
/// Record a focus data entry.
/// </summary>
public void AddFocusData(LexiconFocusData data)
{
List <LexiconFocusData> dataEntries;
if (focusDataDict.TryGetValue(data.GetType(), out dataEntries))
{
dataEntries.Add(data);
}
else
{
List <LexiconFocusData> newList = new List <LexiconFocusData>();
newList.Add(data);
focusDataDict.Add(data.GetType(), newList);
}
}
/// <summary>
/// Retrieve a data entry from the pool for a particular type. Use this to avoid allocations.
/// </summary>
public T GetPooledData <T>() where T : LexiconFocusData, new()
{
List <LexiconFocusData> dataPool;
if (focusDataPool.TryGetValue(typeof(T), out dataPool))
{
if (dataPool.Count > 0)
{
LexiconFocusData data = dataPool[0];
dataPool.RemoveAt(0);
data.Timestamp = Time.realtimeSinceStartup;
return((T)data);
}
}
T newData = new T();
newData.IsPooled = true;
return(newData);
}
/// <summary>
/// Gets the closest data entry of type T to the given timestamp, within maxTimeOffset seconds.
/// </summary>
public T GetFocusData <T>(float realtime, float maxTimeOffset = 0.5f) where T : LexiconFocusData
{
float minDist = float.MaxValue;
LexiconFocusData result = null;
List <LexiconFocusData> dataEntries;
if (focusDataDict.TryGetValue(typeof(T), out dataEntries))
{
foreach (LexiconFocusData data in dataEntries)
{
// TODO: Optimize this.
float dist = Mathf.Abs(realtime - data.Timestamp);
if (dist < minDist && dist < maxTimeOffset)
{
minDist = dist;
result = data;
}
}
}
return((T)result);
}
