block.cs

这个程序是基于c＃平台的俄罗斯方框游戏。拿来共享。要求加分哦！

using System;
using System.Drawing;

namespace AnotherBlock
{
	/// <summary>
	/// Represents a Tetris block.
	/// </summary>
	public class Block
	{
		/// <summary>
		/// Private attribute that holds the current width of the block (in block units).
		/// </summary>
		private short width;
		/// <summary>
		/// Private attribute that holds the current height of the block (in block units).
		/// </summary>
		private short height;
		/// <summary>
		/// Private attribute that holds the shape of the block.
		/// </summary>
		private Brick[,] shape;
		/// <summary>
		/// Private attribute that holds the top position of the block in the play field (in block units).
		/// </summary>
		private short top;
		/// <summary>
		/// Private attribute that holds the left position of the block in the play field (in block units).
		/// </summary>
		private short left;
		/// <summary>
		/// Private attribute that holds the block type of the block.
		/// </summary>
		private BlockType blockType = BlockType.Undefined;
		/// <summary>
		/// Private attribute that holds the image #1 of the block unit.
		/// </summary>
		private Image blockImage01 = Image.FromFile("images/block01.gif");
		/// <summary>
		/// Private attribute that holds the image #2 of the block unit.
		/// </summary>
		private Image blockImage02 = Image.FromFile("images/block02.gif");
		/// <summary>
		/// Private attribute that holds the image #3 of the block unit.
		/// </summary>
		private Image blockImage03 = Image.FromFile("images/block03.gif");
		/// <summary>
		/// Private attribute that holds the image #4 of the block unit.
		/// </summary>
		private Image blockImage04 = Image.FromFile("images/block04.gif");
		/// <summary>
		/// Private attribute that holds the image #5 of the block unit.
		/// </summary>
		private Image blockImage05 = Image.FromFile("images/block05.gif");
		/// <summary>
		/// Private attribute that holds the image #6 of the block unit.
		/// </summary>
		private Image blockImage06 = Image.FromFile("images/block06.gif");
		/// <summary>
		/// Private attribute that holds the image #7 of the block unit.
		/// </summary>
		private Image blockImage07 = Image.FromFile("images/block07.gif");
		/// <summary>
		/// Private attribute that holds the image #8 of the block unit.
		/// </summary>
		private Image blockImage08 = Image.FromFile("images/block08.gif");
		/// <summary>
		/// Private attribute that holds the image #9 of the block unit.
		/// </summary>
		private Image blockImage09 = Image.FromFile("images/block09.gif");
		/// <summary>
		/// Private attribute that holds the image #10 of the block unit.
		/// </summary>
		private Image blockImage10 = Image.FromFile("images/block10.gif");
		/// <summary>
		/// Private attribute that holds the image #11 of the block unit.
		/// </summary>
		private Image blockImage11 = Image.FromFile("images/block11.gif");
		/// <summary>
		/// Private attribute that holds the image #12 of the block unit.
		/// </summary>
		private Image blockImage12 = Image.FromFile("images/block12.gif");
		/// <summary>
		/// Private attribute that holds the image #13 of the block unit.
		/// </summary>
		private Image blockImage13 = Image.FromFile("images/block13.gif");
		/// <summary>
		/// Private attribute that holds the image #14 of the block unit.
		/// </summary>
		private Image blockImage14 = Image.FromFile("images/block14.gif");

		/// <summary>
		/// Class constructor that creates a block with a random block type.
		/// </summary>
		public Block()
		{
			// Creates a random number generator.
			Random randomGenerator = new Random();
			// Randomizes the block type.
			BlockType randomBlockType = (BlockType)(randomGenerator.Next(1, 8));
			// Sets the block type.
			this.BlockType = randomBlockType;
		}

		/// <summary>
		/// Class constructor that creates a block with a given block type.
		/// </summary>
		/// <param name="blockType">Block type of the new block being created.</param>
		public Block(BlockType blockType)
		{
			// Sets the block type.
			this.BlockType = blockType;
		}

		/// <summary>
		/// Property that holds and sets the top position of the block in the play field (in block units).
		/// </summary>
		/// <remarks>
		/// Value must be between 0 and the playing field height.
		/// </remarks>
		public short Top
		{
			get
			{
				// Returns the value in the top attribute.
				return top;
			}

			set
			{
				// Checks if the value is within the allowed range.
				if ((value > -1) && (value < (Game.PlayingFieldHeight + 1)))
				{
					// The value is within the allowed range.
					// Sets the top attribute to the value.
					top = value;
				}
				else
				{
					// The value is not within the allowed range.
					// Throws an argument exception with the error.
					throw new ArgumentException("Property Top must be between 0 and " + Game.PlayingFieldHeight.ToString() + ".");
				}
			}
		}

		/// <summary>
		/// Property that holds and sets the left position of the block in the play field (in block units).
		/// </summary>
		/// <remarks>
		/// Value must be between 0 and the playing field width, taking into consideration the block width.
		/// </remarks>
		public short Left
		{
			get
			{
				// Returns the value in the left attribute.
				return left;
			}

			set
			{
				// Checks if the value is within the allowed range.
				if ((value > -1) && ((value + this.Width) <= Game.PlayingFieldWidth))
				{
					// The value is within the allowed range.
					// Sets the left attribute to the value.
					left = value;
				}
				else
				{
					// The value is not within the allowed range.
					// Throws an argument exception with the error.
					throw new ArgumentException("Property Left must be between 0 and " + ((int)(Game.PlayingFieldWidth - this.Width)).ToString() + ".");
				}
			}
		}

		/// <summary>
		/// Property that holds and sets the current width of the block (in block units).
		/// </summary>
		/// <remarks>
		/// Value must be between 1 and 4.
		/// </remarks>
		public short Width
		{
			get
			{
				// Returns the value in the width attribute.
				return width;
			}

			set
			{
				// Checks if the value is within the allowed range.
				if ((value > 0) && (value < 5))
				{
					// The value is within the allowed range.
					// Sets the width attribute to the value.
					width = value;
				}
				else
				{
					// The value is not within the allowed range.
					// Throws an argument exception with the error.
					throw new ArgumentException("Property Width must be between 1 and 4.");
				}
			}
		}

		/// <summary>
		/// Property that holds and sets the current height of the block (in block units).
		/// </summary>
		/// <remarks>
		/// Value must be between 1 and 4.
		/// </remarks>
		public short Height
		{
			get
			{
				// Returns the value in the height attribute.
				return height;
			}

			set
			{
				// Checks if the value is within the allowed range.
				if ((value > 0) && (value < 5))
				{
					// The value is within the allowed range.
					// Sets the width attribute to the value.
					height = value;
				}
				else
				{
					// The value is not within the allowed range.
					// Throws an argument exception with the error.
					throw new ArgumentException("Property Height must be between 1 and 4.");
				}
			}
		}

		/// <summary>
		/// Property that holds and sets the shape of the block.
		/// </summary>
		public Brick[,] Shape
		{
			get
			{
				// Returns the value in the shape attribute.
				return shape;
			}

			set
			{
				// Checks if the length of the value to be set is right, according the the width and height of the block.
				if (value.Length == width * height)
				{
					// The value is right.
					// Sets the shape attribute to the value.
					shape = value;
				}
				else
				{
					// The value is not right.
					// Throws an argument exception with the error.
					throw new ArgumentException("Specified index length does not match block dimensions.");
				}
			}
		}

		/// <summary>
		/// Property that holds and sets the block type.
		/// </summary>
		/// <remarks>
		/// The block type can be set only one time.
		/// </remarks>
		public BlockType BlockType
		{
			get
			{