/// <summary>
/// Gets effect data from the dicronary if it exists.
/// </summary>
/// <param name="effect">The effect to get.</param>
/// <param name="effectData">The effect data ssociated with the effect.</param>
/// <returns><see langword="true"/> when the effect exists; otherwise <see langword="false"/>.</returns>
protected bool GetKnownEffect(ICellEffect effect, out ColoredGlyphEffectData effectData)
{
if (_effects.ContainsKey(effect))
{
effectData = _effects[effect];
return(true);
}
else
{
effectData = new ColoredGlyphEffectData(effect);
return(false);
}
}
/// <summary>
/// Changes the effect of a specific cell.
/// </summary>
/// <param name="cellIndex">Cell index to set the effect for.</param>
/// <param name="effect">The effect to associate with the cell.</param>
public void SetEffect(int cellIndex, ICellEffect effect)
{
ColoredGlyph cell = _backingSurface[cellIndex];
if (effect != null)
{
ColoredGlyphEffectData workingEffect;
if (effect.CloneOnAdd)
{
effect = effect.Clone();
workingEffect = new ColoredGlyphEffectData(effect);
_effects.Add(workingEffect.Effect, workingEffect);
}
else
{
// Is the effect unknown? Add it.
if (GetKnownEffect(effect, out workingEffect) == false)
{
_effects.Add(workingEffect.Effect, workingEffect);
}
else
{
if (workingEffect.ContainsCell(cellIndex))
{
// Make sure the effect is attached to the cell.
return;
}
}
}
// Remove the targeted cell from the known cells list if it is already there (associated with another effect)
ClearCellEffect(cellIndex);
// Add the cell to the effects by cell key and to list of known cells for the effect
_effectCells.Add(cellIndex, workingEffect);
workingEffect.CellsStates.Add(new ColoredGlyphWithState(cell, cellIndex));
}
else
{
ClearCellEffect(cellIndex);
}
}
/// <summary>
/// Changes the effect of the <paramref name="cellIndicies"/> provided.
/// </summary>
/// <param name="cellIndicies">A list of cell indicies to change the effect on.</param>
/// <param name="effect">The effect to associate with the cell.</param>
public void SetEffect(IEnumerable <int> cellIndicies, ICellEffect effect)
{
if (effect != null)
{
ColoredGlyphEffectData workingEffect;
if (effect.CloneOnAdd)
{
effect = effect.Clone();
workingEffect = new ColoredGlyphEffectData(effect);
_effects.Add(workingEffect.Effect, workingEffect);
}
else
{
// Is the effect unknown? Add it.
if (GetKnownEffect(effect, out workingEffect) == false)
{
_effects.Add(workingEffect.Effect, workingEffect);
}
}
foreach (int index in cellIndicies)
{
if (!workingEffect.ContainsCell(index))
{
// Remove the targeted cell from the known cells list if it is already there (associated with another effect)
ClearCellEffect(index);
// Add the cell to the effects by cell key and to list of known cells for the effect
_effectCells.Add(index, workingEffect);
workingEffect.CellsStates.Add(new ColoredGlyphWithState(_backingSurface[index], index));
}
}
}
else
{
foreach (int index in cellIndicies)
{
ClearCellEffect(index);
}
}
}
