我正在尝试在XNA中创建一个俄罗斯方块游戏，以便更好地学习将来制作更好的游戏。我遇到的唯一问题是游戏的“删除行”功能。我有一个整数矩阵来保存其中块的所有行数。每当我创建一个新块时，我在指定的行中将计数增加一。然后，我检查矩阵中的任何值是否达到或超过10.然后，如果有，我删除所述行中的所有块。我遇到的问题是它不可靠，并且由于某些原因它不会跟踪计数，有时它也不会删除行中的所有块。如果您需要查看任何其他课程，请告诉我。谢谢，感谢您的帮助。
public class Main : Game
{
GraphicsDeviceManager graphics;
SpriteBatch spriteBatch;
//Texture for the block
public static Texture2D block;
//Font
public static SpriteFont font1;
//Which shape we're dealing with(Moving)
public static int shapeIndex;
//The next shape, the one we can see previewed
public static Shape nextShape;
//The first shape we use
public static Shape s2;
//All the shapes
public static List<Shape> shapes = new List<Shape>();
//All the blocks that have stopped moving (The shapes are converted to blocks when they stop moving to make for easier deletion)
public static List<Block> blocks = new List<Block>();
//The count of blocks in each row
public static int[] rowCount = new int[20];
public Main()
{
graphics = new GraphicsDeviceManager(this);
Content.RootDirectory = "Content";
graphics.PreferredBackBufferHeight = 500;
}
protected override void Initialize()
{
this.IsMouseVisible = true;
base.Initialize();
}
protected override void LoadContent()
{
spriteBatch = new SpriteBatch(GraphicsDevice);
block = Content.Load<Texture2D>("Sprites//TetrisBlock");
font1 = Content.Load<SpriteFont>("Fonts//GameFont");
//Creating a random shape
switch (new Random().Next(1, 3))
{
case 1:
nextShape = new Shape(Shape.Shapes.tShape, new Vector2(550, 0), false);
break;
case 2:
nextShape = new Shape(Shape.Shapes.lineShape, new Vector2(550, 0), false);
break;
}
//The current shape we're dealing with
shapeIndex = 0;
//Creating the first shape
s2 = new Shape(Shape.Shapes.lineShape, new Vector2(), true);
}
protected override void Update(GameTime gameTime)
{
//If the blocks that are still are rainbow, have them cycle through their colors
foreach (Block b in nextShape.Blocks)
{
if (b.RainbowBlock)
b.changeColor(gameTime);
}
//Update all the shapes
for (int i = 0; i < shapes.Count; i++)
{
shapes[i].Update(gameTime);
}
//If the shape has hit another shape and stopped moving
if (!shapes[shapeIndex].MoveDown)
{
//For every block that was in the shape, add it to the block list and increase that row's count by one
foreach (Block b in shapes[shapeIndex].Blocks)
{
blocks.Add(b);
rowCount[b.Row]++;
}
//Remove that shape
shapes.RemoveAt(shapeIndex);
//The current shape we need to move
Shape s3 = nextShape;
s3.Position = new Vector2();
s3.Imaginary = false;
shapes.Add(s3);
//Creating a new random shape for the next shape
switch (new Random().Next(1, 4))
{
case 1:
nextShape = new Shape(Shape.Shapes.tShape, new Vector2(550, 0), false);
break;
case 2:
nextShape = new Shape(Shape.Shapes.lineShape, new Vector2(550, 0), false);
break;
case 3:
nextShape = new Shape(Shape.Shapes.lShape, new Vector2(550, 0), false);
break;
}
}
//Testing whether or not rows have reached their maximum capacity
for (int i = 0; i < rowCount.Length; i++)
{
//If a row has reached its capacity
if (rowCount[i] >= 10)
{
//Remove that row
removeRow(i);
//Move all blocks that are above that row down one
foreach (Block b in blocks)
{
if (b.Row < i)
{
//Subtract the old rowcount by one
rowCount[b.Row]--;
b.Row++;
//Add one to the rowcount(If I remove this, it seems to work a little better but it still has issues)
rowCount[b.Row]++;
}
}
}
}
//Update all the blocks that are still
foreach (Block b in blocks)
b.Update(gameTime);
base.Update(gameTime);
}
//Remove the row specified in the parameters
public void removeRow(int row)
{
//For every block
for (int i = 0; i < blocks.Count; i++)
{
//See if it's in the row the user wants to remove
if (blocks[i].Row.Equals(row))
{
//If it is, remove it and decrement that row's rowcount
blocks.RemoveAt(i);
rowCount[row]--;
//Here was the problem, I wasn't decrementing i to check the next block
i--;
}
}
}
protected override void Draw(GameTime gameTime)
{
GraphicsDevice.Clear(Color.CornflowerBlue);
spriteBatch.Begin();
//Draws every shape in the game
foreach (Shape s in shapes)
s.Draw(spriteBatch);
//Draws all the blocks at the bottom that have stopped moving
foreach (Block b in blocks)
b.Draw(spriteBatch);
//Info for me
spriteBatch.DrawString(font1, "Next Block:", new Vector2(430, 0), Color.Black);
spriteBatch.DrawString(font1, rowCount[19].ToString() + " " + blocks.Count + " Blocks", new Vector2(300, 0), Color.Black);
//For the next shape, draw every block so we know what it looks like
foreach (Block b in nextShape.Blocks)
b.Draw(spriteBatch);
spriteBatch.End();
base.Draw(gameTime);
}
}
[编辑] 向下移动的部件工作正常，它只是删除麻烦的行。我也尽力发表评论，如果你有任何问题，请问。再次感谢。
答案 0 :(得分：1)
当我迭代我正在检查的块时，如果我删除了它，我没有递减迭代变量来检查下一个块 - 所以所有的块都没有被检查。