/// <summary>
/// Returns true if there is an InputItem that matches the passed Identifier.
/// </summary>
/// <param name="identifier"></param>
/// <returns></returns>
public bool Has(IInputIdentifier identifier)
{
foreach (InputItem input in inputs)
{
if (identifier.Matches(input))
{
return(true);
}
}
return(false);
}
/// <summary>
/// Returns the first InputItem that matches the passed Identifier without removing it from the InputSet.
/// Not recommended for most uses.
/// </summary>
/// <param name="match"></param>
/// <param name="identifier"></param>
/// <returns>If a match was found</returns>
public bool View(out InputItem match, IInputIdentifier identifier)
{
foreach (InputItem input in inputs)
{
if (identifier.Matches(input))
{
match = input;
return(true);
}
}
match = null;
return(false);
}
public bool ViewAllMatches(out List <InputItem> items, IInputIdentifier identifier)
{
bool foundAny = false;
items = new List <InputItem>();
foreach (InputItem input in inputs)
{
if (identifier.Matches(input))
{
items.Add(input);
foundAny = true;
}
}
return(foundAny);
}
/// <summary>
/// Removes the first input item that matches the Identifier from the list and returns it, thus preventing its use on other screens.
/// </summary>
/// <param name="identifier"></param>
/// <returns>The first InputItem that matches, or null if none does.</returns>
public bool Consume(out InputItem match, IInputIdentifier identifier)
{
for (int i = 0; i < inputs.Count; i++)
{
if (identifier.Matches(inputs[i]))
{
InputItem item = inputs[i];
inputs.RemoveAt(i);
match = item;
return(true);
}
}
match = null;
return(false);
}
public bool ConsumeAllMatches(out List <InputItem> items, IInputIdentifier identifier)
{
bool foundAny = false;
items = new List <InputItem>();
for (int i = 0; i < inputs.Count; i++)
{
if (identifier.Matches(inputs[i]))
{
items.Add(inputs[i]);
inputs.RemoveAt(i);
i--;
foundAny = true;
}
}
return(foundAny);
}
public bool Matches(IInputIdentifier identifier)
{
return(identifier.Matches(this));
}
