public int GetScentByOdorAt(Odor odor, Point position)
{
if (!IsInBounds(position))
{
return(0);
}
OdorScent scent = GetScentByOdor(odor, position);
return(scent == null ? 0 : scent.Strength);
}
public void RemoveScent(OdorScent scent)
{
// list.
m_Scents.Remove(scent);
// hash.
List <OdorScent> scentsThere;
if (m_aux_ScentsByPosition.TryGetValue(scent.Position, out scentsThere))
{
scentsThere.Remove(scent);
if (scentsThere.Count == 0)
{
m_aux_ScentsByPosition.Remove(scent.Position);
}
}
}
/// <summary>
/// Adds or merge a scent.
/// </summary>
/// <param name="odor"></param>
/// <param name="strengthChange"></param>
/// <param name="position"></param>
public void ModifyScentAt(Odor odor, int strengthChange, Point position)
{
if (!IsInBounds(position))
{
throw new ArgumentOutOfRangeException("position");
}
OdorScent oldScent = GetScentByOdor(odor, position);
if (oldScent == null)
{
// new odor there.
OdorScent newScent = new OdorScent(odor, strengthChange, position);
AddNewScent(newScent);
}
else
{
// existing odor here.
oldScent.Change(strengthChange);
}
}
void AddNewScent(OdorScent scent)
{
// list
if (!m_Scents.Contains(scent))
{
m_Scents.Add(scent);
}
// hash
List <OdorScent> scentsThere;
if (m_aux_ScentsByPosition.TryGetValue(scent.Position, out scentsThere))
{
scentsThere.Add(scent);
}
else
{
scentsThere = new List <OdorScent>(2);
scentsThere.Add(scent);
m_aux_ScentsByPosition.Add(scent.Position, scentsThere);
}
}
/// <summary>
/// Sets odor strength to new strength if is it stronger (more "fresh").
/// </summary>
/// <param name="odor"></param>
/// <param name="freshStrength"></param>
/// <param name="position"></param>
public void RefreshScentAt(Odor odor, int freshStrength, Point position)
{
if (!IsInBounds(position))
{
throw new ArgumentOutOfRangeException(String.Format("position; ({0},{1}) map {2} odor {3}", position.X, position.Y, this.m_Name, odor.ToString()));
}
OdorScent oldScent = GetScentByOdor(odor, position);
if (oldScent == null)
{
// new odor there.
OdorScent newScent = new OdorScent(odor, freshStrength, position);
AddNewScent(newScent);
}
else
{
// existing odor here.
if (oldScent.Strength < freshStrength)
{
oldScent.Set(freshStrength);
}
}
}