我正在尝试使用此代码生成包含独特随机音符的数组。它将根据给定的参数进行记录并为其指定一个偶然的符号，并可能显示为平坦或尖锐的对应物。例如，如果随机发生器表示音符“A”将是平坦的，则它有可能显示为A♭或G♯。
现在，我没有处理半步音符（例如C♭变成B♯等），但这主要是因为第一部分不起作用。我现在遇到的问题是我使用的代码似乎并不一致。它会在某些时候正确翻译笔记并将其混淆。至少没有系统的错误模式，也不是因为我试图破译。
我正在使用XNA来显示屏幕上的注释，但真正的问题在于数据。我正在使用我制作的Note课程。
这是我正在使用的代码：
首先是Note类：
public class Note
{
public enum Notes
{
A = 0,
B = 1,
C = 2,
D = 3,
E = 4,
F = 5,
G = 6
}
public Notes noteLetter { get; private set; }
public Notes translatedLetter { get; private set; }
public bool isFlat { get; private set; }
public bool showSharp { get; private set; }
private const int NOTE_COUNT = 7;
/// <summary>
/// Creates a Note
/// </summary>
/// <param name="note">The basic note</param>
/// <param name="flat">Is the note flat?</param>
/// <param name="sharp">Will be shown as it's sharp counterpart?</param>
public Note(Notes note, bool flat, bool sharp)
{
noteLetter = note;
isFlat = flat;
showSharp = sharp;
if (isFlat && showSharp)
{
int hashCode = (int)noteLetter;
translatedLetter = (Notes)((hashCode + NOTE_COUNT - 1) % NOTE_COUNT);
}
else
{
translatedLetter = noteLetter;
showSharp = isFlat;
}
}
}
然后是Game1.cs文件：
public class Game1 : Microsoft.Xna.Framework.Game
{
GraphicsDeviceManager graphics;
SpriteBatch spriteBatch;
KeyboardState KeyBState, prevKeybState;
Texture2D sprite;
Rectangle noteSource;
Rectangle accSource;
const int ACCIDENTAL_START_X = 840;
const int BORDER_OFFSET = 12;
Vector2 notePosition;
SpriteFont font;
/// <summary>
/// The array of notes, row/column format
/// </summary>
Note[,] box;
const int ROW_SIZE = 3, COLUMN_SIZE = 4;
public Game1()
{
graphics = new GraphicsDeviceManager(this);
Content.RootDirectory = "Content";
box = new Note[ROW_SIZE, COLUMN_SIZE];
noteSource = new Rectangle(0, 0, 120, 120);
accSource = new Rectangle(ACCIDENTAL_START_X, 0, 50, 50);
notePosition = Vector2.Zero;
}
protected override void Initialize()
{
// TODO: Add your initialization logic here
MakeTable();
base.Initialize();
}
protected override void LoadContent()
{
// Create a new SpriteBatch, which can be used to draw textures.
spriteBatch = new SpriteBatch(GraphicsDevice);
sprite = Content.Load<Texture2D>("Note Pieces2");
font = Content.Load<SpriteFont>("font");
// TODO: use this.Content to load your game content here
}
protected override void UnloadContent()
{
// TODO: Unload any non ContentManager content here
}
protected override void Update(GameTime gameTime)
{
// Allows the game to exit
KeyBState = Keyboard.GetState();
if (KeyBState.IsKeyDown(Keys.Escape))
this.Exit();
if (KeyBState.IsKeyDown(Keys.Space) && prevKeybState.IsKeyUp(Keys.Space))
MakeTable();
// TODO: Add your update logic here
prevKeybState = KeyBState;
base.Update(gameTime);
}
protected override void Draw(GameTime gameTime)
{
GraphicsDevice.Clear(Color.CornflowerBlue);
// TODO: Add your drawing code here
spriteBatch.Begin();
for (int r = 0; r < ROW_SIZE; r++)
{
for (int c = 0; c < COLUMN_SIZE; c++)
{
Note temp = box[r, c];
notePosition.Y = r * noteSource.Width + (r * BORDER_OFFSET);
notePosition.X = c * noteSource.Height + (c * BORDER_OFFSET);
noteSource.X = temp.translatedLetter.GetHashCode() * noteSource.Width;
spriteBatch.Draw(sprite, notePosition, noteSource, Color.White);
notePosition.X += noteSource.Width / 2;
notePosition.Y += 7;
spriteBatch.DrawString(font,
temp.noteLetter.ToString() +
(temp.isFlat ? "b " : " ") +
temp.translatedLetter +
(temp.showSharp ? "#" : ""), notePosition, Color.Black);
notePosition.X -= noteSource.Width / 2;
notePosition.Y -= 7;
if (temp.isFlat)
{
notePosition.X += 63;
notePosition.Y += 63;
accSource.X = ACCIDENTAL_START_X;
accSource.Y = 0;
if (temp.showSharp)
{
accSource.X += (temp.translatedLetter.GetHashCode() % 2) * (accSource.Width * 2);
accSource.Y += ((int)(temp.translatedLetter.GetHashCode() / 2)) * accSource.Height;
spriteBatch.Draw(sprite, notePosition, accSource, Color.White);
}
/*
else
{
accSource.X += (temp.translatedLetter.GetHashCode() % 2) * (accSource.Width * 2) + accSource.Width;
accSource.Y += ((int)(temp.translatedLetter.GetHashCode() / 2)) * accSource.Height;
spriteBatch.Draw(sprite, notePosition, accSource, Color.White);
}
*/
}
}
}
spriteBatch.End();
base.Draw(gameTime);
}
/// <summary>
/// Makes a new random table of notes
/// </summary>
private void MakeTable()
{
//make everything null
for (int r = 0; r < ROW_SIZE; r++)
{
for (int c = 0; c < COLUMN_SIZE; c++)
{
box[r, c] = null;
}
}
//then start
Random rand = new Random();
for (int i = 0; i < 12; i++)
{
bool isUnique;
bool noteEntered;
do
{
Note newNote = new Note((Note.Notes)rand.Next(0, 7),
rand.Next(0, 2) == 0 ? true : false,
rand.Next(0, 2) == 0 ? true : false);
isUnique = true;
noteEntered = false;
//Check to see if there exists a note like this
for (int r = 0; r < ROW_SIZE; r++)
{
for (int c = 0; c < COLUMN_SIZE; c++)
{
Note temp = box[r, c];
if (noteEntered || !isUnique)
continue;
else if (temp != null &&
temp.noteLetter == newNote.noteLetter &&
temp.isFlat == newNote.isFlat)
{
isUnique = false;
}
else if (temp == null)
{
box[r, c] = newNote;
noteEntered = true;
}
}
}
} while (!isUnique);
}
}
}
运行所有内容的主要代码是MakeTable()方法，但我放入了所有内容以防万一其他地方出现问题。据我所知，除了图形库之外，我没有使用任何与XNA Framework相关的库，这会导致出错。我正在使用CodePlex制作的XNA重建。我知道他们还在做一些事情，但这应该不是问题。有人可以帮我这个吗？
答案 0 :(得分：0)
我现在明白了。我接受了Lee Daniel Crocker的建议，并修复了我的计划。我制作了一个12值的枚举，并编辑了MakeTable()方法，以便从不同的集合中提取每个音符并将它们随机地输入到另一个数组中。另外，我修改了我的照片，以便我可以更容易地绘制它。事后来说，即使我也不知道我为什么做了我原来做的事。
顺便说一下，我将MakeTable()移到了Note类，以便更轻松地编写MakeTable()。
这是我的代码：
首先，Note：
/// <summary>
/// A musical note
/// </summary>
public class Note
{
public enum Notes
{
Ab = 10,
A = 0,
Bb = 11,
B = 1,
C = 2,
Db = 13,
D = 3,
Eb = 14,
E = 4,
F = 5,
Gb = 16,
G = 6
}
/// <summary>
/// This holds the notes with accidentals
/// </summary>
public Notes noteLetter { get; private set; }
/// <summary>
/// this holds the note without any accidentals
/// </summary>
public Notes naturalLetter { get; private set; }
/// <summary>
/// Holds the value of the note if showsharp is true
/// </summary>
public Notes translatedLetter { get; private set; }
/// <summary>
/// Denotes whether or not the note will represented
/// as its sharp counterpart, its prerequisite being
/// that it was flat in the first place
/// </summary>
public bool showSharp { get; private set; }
/// <summary>
/// Creates a Note
/// </summary>
/// <param name="note">The basic note</param>
/// <param name="sharp">Will be shown as it's sharp counterpart?</param>
public Note(Notes note, bool sharp)
{
noteLetter = note;
switch(noteLetter)
{
case Notes.Ab:
naturalLetter = Notes.A;
translatedLetter = Notes.G;
break;
case Notes.Bb:
naturalLetter = Notes.B;
translatedLetter = Notes.A;
break;
case Notes.Db:
naturalLetter = Notes.D;
translatedLetter = Notes.C;
break;
case Notes.Eb:
naturalLetter = Notes.E;
translatedLetter = Notes.D;
break;
case Notes.Gb:
naturalLetter = Notes.G;
translatedLetter = Notes.F;
break;
default:
naturalLetter = noteLetter;
break;
}
showSharp = sharp;
if (showSharp)
{
switch (noteLetter)
{
case Notes.A:
case Notes.B:
case Notes.C:
case Notes.D:
case Notes.E:
case Notes.F:
case Notes.G:
showSharp = false;
break;
}
}
}
/// <summary>
/// Will make a random table of Note objects
/// </summary>
/// <param name="table">the array in which to place the Note objects</param>
public static void MakeTable(out Note[,] table)
{
Note[,] temp = new Note[3, 4];
Random rand = new Random();
temp[0, 0] = new Note(Notes.Ab, (rand.Next(0, 2) == 0 ? true : false));
temp[0, 1] = new Note(Notes.A, (rand.Next(0, 2) == 0 ? true : false));
temp[0, 2] = new Note(Notes.Bb, (rand.Next(0, 2) == 0 ? true : false));
temp[0, 3] = new Note(Notes.B, (rand.Next(0, 2) == 0 ? true : false));
temp[1, 0] = new Note(Notes.C, (rand.Next(0, 2) == 0 ? true : false));
temp[1, 1] = new Note(Notes.Db, (rand.Next(0, 2) == 0 ? true : false));
temp[1, 2] = new Note(Notes.D, (rand.Next(0, 2) == 0 ? true : false));
temp[1, 3] = new Note(Notes.Eb, (rand.Next(0, 2) == 0 ? true : false));
temp[2, 0] = new Note(Notes.E, (rand.Next(0, 2) == 0 ? true : false));
temp[2, 1] = new Note(Notes.F, (rand.Next(0, 2) == 0 ? true : false));
temp[2, 2] = new Note(Notes.Gb, (rand.Next(0, 2) == 0 ? true : false));
temp[2, 3] = new Note(Notes.G, (rand.Next(0, 2) == 0 ? true : false));
table = new Note[3, 4];
for (int i = 0; i < 12; i++)
{
int row;
int col;
row = rand.Next(0, 3);
col = rand.Next(0, 4);
while (table[row, col] != null)
{
//Randomly choose if either the row or column will be incremented
bool useRow = (rand.Next(0, 2) == 0 ? true : false);
//then increment one of them
if (useRow)
{
row = (row + 1) % 3;
}
else
{
col = (col + 1) % 4;
}
}
//Place notes in the empty registers
if (table[row, col] == null)
{
table[row, col] = temp[(int)(i / 4), i % 4];
}
}
}
}
Game1：
/// <summary>
/// This is the main type for your game
/// </summary>
public class Game1 : Microsoft.Xna.Framework.Game
{
GraphicsDeviceManager graphics;
SpriteBatch spriteBatch;
KeyboardState KeyBState, prevKeybState;
Texture2D sprite;
Rectangle noteSource;
Rectangle accSource;
const int ACCIDENTAL_START_X = 840;
const int BORDER_OFFSET = 12;
Vector2 notePosition;
SpriteFont font;
/// <summary>
/// The array of notes, row/column format
/// </summary>
Note[,] box;
const int ROW_SIZE = 3, COLUMN_SIZE = 4;
public Game1()
{
graphics = new GraphicsDeviceManager(this);
Content.RootDirectory = "Content";
box = new Note[ROW_SIZE, COLUMN_SIZE];
noteSource = new Rectangle(0, 0, 120, 120);
accSource = new Rectangle(ACCIDENTAL_START_X, 0, 50, 50);
notePosition = Vector2.Zero;
}
/// <summary>
/// Allows the game to perform any initialization it needs to before starting to run.
/// This is where it can query for any required services and load any non-graphic
/// related content. Calling base.Initialize will enumerate through any components
/// and initialize them as well.
/// </summary>
protected override void Initialize()
{
// TODO: Add your initialization logic here
Note.MakeTable(out box);
base.Initialize();
}
/// <summary>
/// LoadContent will be called once per game and is the place to load
/// all of your content.
/// </summary>
protected override void LoadContent()
{
// Create a new SpriteBatch, which can be used to draw textures.
spriteBatch = new SpriteBatch(GraphicsDevice);
sprite = Content.Load<Texture2D>("Note Pieces2");
font = Content.Load<SpriteFont>("font");
// TODO: use this.Content to load your game content here
}
/// <summary>
/// UnloadContent will be called once per game and is the place to unload
/// all content.
/// </summary>
protected override void UnloadContent()
{
// TODO: Unload any non ContentManager content here
}
/// <summary>
/// Allows the game to run logic such as updating the world,
/// checking for collisions, gathering input, and playing audio.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Update(GameTime gameTime)
{
// Allows the game to exit
KeyBState = Keyboard.GetState();
if (KeyBState.IsKeyDown(Keys.Escape))
this.Exit();
if (KeyBState.IsKeyDown(Keys.Space) && prevKeybState.IsKeyUp(Keys.Space))
Note.MakeTable(out box);
// TODO: Add your update logic here
prevKeybState = KeyBState;
base.Update(gameTime);
}
/// <summary>
/// This is called when the game should draw itself.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Draw(GameTime gameTime)
{
GraphicsDevice.Clear(Color.CornflowerBlue);
// TODO: Add your drawing code here
spriteBatch.Begin();
for (int r = 0; r < ROW_SIZE; r++)
{
for (int c = 0; c < COLUMN_SIZE; c++)
{
Note temp = box[r, c];
notePosition.Y = r * noteSource.Width + ((r + 1) * BORDER_OFFSET);
notePosition.X = c * noteSource.Height + ((c + 1) * BORDER_OFFSET);
noteSource.X = (temp.showSharp ? (int)temp.translatedLetter : (int)temp.naturalLetter) * noteSource.Width;
spriteBatch.Draw(sprite, notePosition, noteSource, Color.White);
notePosition.X += noteSource.Width / 2;
notePosition.Y += 7;
spriteBatch.DrawString(font,
temp.noteLetter.ToString() + " " +
(temp.showSharp ? "#" : ""), notePosition, Color.Black);
notePosition.X -= noteSource.Width / 2;
notePosition.Y -= 7;
switch (temp.noteLetter)
{
case Note.Notes.Ab:
case Note.Notes.Bb:
case Note.Notes.Db:
case Note.Notes.Eb:
case Note.Notes.Gb:
notePosition.X += 63;
notePosition.Y += 63;
int accOffset = 0;
if (temp.showSharp)
{
accSource.X = (int)temp.translatedLetter * noteSource.Width;
}
else
{
accSource.X = (int)temp.naturalLetter * noteSource.Width;
accOffset = accSource.Width;
}
accSource.X += accOffset;
accSource.Y = noteSource.Height;
spriteBatch.Draw(sprite, notePosition, accSource, Color.White);
break;
}
}
}
spriteBatch.End();
base.Draw(gameTime);
}
}