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149 |
#region File Description
//-----------------------------------------------------------------------------
// OptionsMenuScreen.cs
//
// Microsoft XNA Community Game Platform
// Copyright (C) Microsoft Corporation. All rights reserved.
//-----------------------------------------------------------------------------
#endregion
#region Using Statements
using Microsoft.Xna.Framework;
#endregion
namespace AIDemos
{
/// <summary>
/// The options screen is brought up over the top of the main menu
/// screen, and gives the user a chance to configure the game
/// in various hopefully useful ways.
/// </summary>
public class OptionsMenuScreen : MenuScreen
{
#region Fields
MenuEntry ungulateMenuEntry;
MenuEntry languageMenuEntry;
MenuEntry frobnicateMenuEntry;
MenuEntry elfMenuEntry;
enum Ungulate
{
BactrianCamel,
Dromedary,
Llama,
}
static Ungulate currentUngulate = Ungulate.Dromedary;
static string[] languages = { "C#", "French", "Deoxyribonucleic acid" };
static int currentLanguage = 0;
static bool frobnicate = true;
static int elf = 23;
#endregion
#region Initialization
/// <summary>
/// Constructor.
/// </summary>
public OptionsMenuScreen()
: base("Options")
{
// Create our menu entries.
ungulateMenuEntry = new MenuEntry(string.Empty);
languageMenuEntry = new MenuEntry(string.Empty);
frobnicateMenuEntry = new MenuEntry(string.Empty);
elfMenuEntry = new MenuEntry(string.Empty);
SetMenuEntryText();
MenuEntry backMenuEntry = new MenuEntry("Back");
// Hook up menu event handlers.
ungulateMenuEntry.Selected += UngulateMenuEntrySelected;
languageMenuEntry.Selected += LanguageMenuEntrySelected;
frobnicateMenuEntry.Selected += FrobnicateMenuEntrySelected;
elfMenuEntry.Selected += ElfMenuEntrySelected;
backMenuEntry.Selected += OnCancel;
// Add entries to the menu.
MenuEntries.Add(ungulateMenuEntry);
MenuEntries.Add(languageMenuEntry);
MenuEntries.Add(frobnicateMenuEntry);
MenuEntries.Add(elfMenuEntry);
MenuEntries.Add(backMenuEntry);
}
/// <summary>
/// Fills in the latest values for the options screen menu text.
/// </summary>
void SetMenuEntryText()
{
ungulateMenuEntry.Text = "Preferred ungulate: " + currentUngulate;
languageMenuEntry.Text = "Language: " + languages[currentLanguage];
frobnicateMenuEntry.Text = "Frobnicate: " + (frobnicate ? "on" : "off");
elfMenuEntry.Text = "elf: " + elf;
}
#endregion
#region Handle Input
/// <summary>
/// Event handler for when the Ungulate menu entry is selected.
/// </summary>
void UngulateMenuEntrySelected(object sender, PlayerIndexEventArgs e)
{
currentUngulate++;
if (currentUngulate > Ungulate.Llama)
currentUngulate = 0;
SetMenuEntryText();
}
/// <summary>
/// Event handler for when the Language menu entry is selected.
/// </summary>
void LanguageMenuEntrySelected(object sender, PlayerIndexEventArgs e)
{
currentLanguage = (currentLanguage + 1) % languages.Length;
SetMenuEntryText();
}
/// <summary>
/// Event handler for when the Frobnicate menu entry is selected.
/// </summary>
void FrobnicateMenuEntrySelected(object sender, PlayerIndexEventArgs e)
{
frobnicate = !frobnicate;
SetMenuEntryText();
}
/// <summary>
/// Event handler for when the Elf menu entry is selected.
/// </summary>
void ElfMenuEntrySelected(object sender, PlayerIndexEventArgs e)
{
elf++;
SetMenuEntryText();
}
#endregion
}
} |
