/// <summary>
/// Gets the full text of the item and its selected option to show on the menu page.
/// </summary>
/// <param name="isSelected">Specifies if the current menu item is selected.</param>
/// <returns>A <see cref="string"/> representation of this item.</returns>
public string ToString(bool isSelected)
{
MenuItemOption selectedOption = SelectedOption;
string text;
if (string.IsNullOrEmpty(Name))
{
text = selectedOption != null ? selectedOption.Text : string.Empty;
}
else if (selectedOption == null || string.IsNullOrEmpty(selectedOption.Text))
{
text = Name;
}
else
{
text = string.Format("{0}: {1}", Name, selectedOption.Text);
}
if (isSelected)
{
if (Options.Count > 1)
{
text = string.Format("<{0}>", text);
}
else
{
text = string.Format("[{0}]", text);
}
}
return(text);
}
/// <summary>
/// Manages option selection and invocation when specific keys are pressed.
/// </summary>
/// <param name="inputManager">The input manager to use when retrieving the key states.</param>
public virtual void Update(InputManager inputManager)
{
if (inputManager.IsNewKeyDown(Keys.A) || inputManager.IsNewKeyDown(Keys.Left))
{
if (--_selectedOptionIndex < 0)
{
if (Options.Count > 0)
{
_selectedOptionIndex = Options.Count - 1;
}
else
{
_selectedOptionIndex = 0;
}
}
}
else if (inputManager.IsNewKeyDown(Keys.D) || inputManager.IsNewKeyDown(Keys.Right))
{
if (++_selectedOptionIndex >= Options.Count)
{
_selectedOptionIndex = 0;
}
}
else if (inputManager.IsNewKeyDown(Keys.Enter))
{
MenuItemOption selectedOption = SelectedOption;
if (selectedOption != null)
{
SelectedOption.InvokeAction();
}
}
}
