/// <summary>
/// The get character.
/// </summary>
/// <param name="key">
/// The key.
/// </param>
/// <returns>
/// The <see cref="AbstractCharacter"/>.
/// </returns>
public AbstractCharacter GetCharacter(char key)
{
// Uses "lazy initialization"
AbstractCharacter character = null;
if (this.characters.ContainsKey(key))
{
character = this.characters[key];
}
else
{
switch (key)
{
case 'A': character = new CharacterA(); break;
case 'B': character = new CharacterB(); break;
//...
case 'Z': character = new CharacterZ(); break;
}
this.characters.Add(key, character);
}
return(character);
}
/// <summary>
/// The test first.
/// </summary>
private static void TestFirst()
{
// Build a document with text
const string Document = "AAZZBBZB";
char[] chars = Document.ToCharArray();
CharacterFactory characterFactory = new CharacterFactory();
// extrinsic state
int pointSize = 10;
// For each character use a flyweight object
foreach (char c in chars)
{
pointSize++;
AbstractCharacter abstractCharacter = characterFactory.GetCharacter(c);
abstractCharacter.Display(pointSize);
}
// Wait for user
Console.ReadKey();
}