/// <summary>
/// Gets or sets the element at the specified index.
/// </summary>
/// <param name="index">The position in the matrix</param>
/// <returns>The element at the specified index</returns>
public T this[Vector2I index]
{
get
{
if (m_data == null)
{
return(default(T));
}
OffsetList <T> xList = m_data[index.X];
if (xList == null)
{
return(default(T));
}
return(xList[index.Y]);
}
set
{
OffsetList <T> xList = ForceGetXList(index);
T current = xList[index.Y];
if (EqualsDefault(current))
{
if (!EqualsDefault(value))
{
Count++;
}
}
else if (EqualsDefault(value))
{
Count--;
}
ForceGetXList(index)[index.Y] = value;
}
}
/// <summary>
/// Add the specified value at index.
/// </summary>
/// <param name="index">The position in the matrix.</param>
/// <param name="value">The value to set the element to.</param>
/// <returns>True if the element could be added. False if it was already set.</returns>
public bool Add(Vector2I index, T value)
{
OffsetList <T> xList = ForceGetXList(index);
if (!EqualsDefault(xList[index.Y]))
{
return(false);
}
xList[index.Y] = value;
Count++;
return(true);
}
/// <summary>
/// Checks whether the matrix contains a non-default value at the specified index.
/// </summary>
/// <param name="index">The position in the matrix</param>
/// <returns>True if a non-default value exists at the specified index.</returns>
public bool Contains(Vector2I index)
{
if (m_data == null)
{
return(false);
}
OffsetList <T> xList = m_data[index.X];
if (xList == null)
{
return(false);
}
return(!EqualsDefault(xList[index.Y]));
}
/// <summary>
/// Get the array in m_data at index.X with a minimum capacity of index.Y + 1, enlarging m_data or the array as needed.
/// </summary>
/// <param name="index">The position in the matrix</param>
/// <returns>The array in m_data at index.X</returns>
private OffsetList <T> ForceGetXList(Vector2I index)
{
if (m_data == null)
{
m_data = new OffsetList <OffsetList <T> >(index.X);
//Logger.DebugLog("Created matrix");
}
OffsetList <T> xList = m_data[index.X];
if (xList == null)
{
xList = new OffsetList <T>(index.Y);
m_data[index.X] = xList;
//Logger.DebugLog("Created x array at " + index.X);
}
return(xList);
}
