indicatorctrl.cs

来自「C#开发的运行于windows mobile ＰＤＡ上的游戏」· CS 代码 · 共 95 行

////////////////////////////////////////////////
// 
// Project: Lines.NET
// Version: 1.1
// Author:  Vladimir L.
// 
// homepage: http://www.boomsoft.org
// e-mail:   [e-mail]
// 
// Copyright (c) 2003-2004, Boomsoft.org
// 

using System;
using System.Drawing;
using Lines.Core;

namespace Lines.GUI
{
	/// <summary>
	/// Represents the game status indicator on the screen.
	/// </summary>
	/// <remarks>
	/// This control renders the game status on the top of the board and displays players score, current step,
	/// and colors of new balls that will occur on the board next step.
	/// </remarks>
	public class IndicatorCtrl : GenericCtrl
	{
		/// <summary>
		/// Creates an instance of control.
		/// </summary>
		public IndicatorCtrl()
		{
		}

		/// <summary>
		/// Renders the control on the screen.
		/// </summary>
		/// <param name="e">Used to get reference to the Graphics object.</param>
		protected override void OnPaint(System.Windows.Forms.PaintEventArgs e)
		{
			// Draw frame
			Graphics g = e.Graphics;
			Rectangle box = new Rectangle(0, 0, this.Width - 1, this.Height - 1);
			g.FillRectangle(new SolidBrush(Preferences.IndicatorCtrlBgColor), box);
			
			// Exit if Game isn't defined
			if (Game == null) return;

			Pen fieldPen = new Pen(Preferences.IndicatorFgColor);
			int padding = (this.Width - GetCellSize() * Game.BallsPerStep) / 2;

			// Balls
			Rectangle cellRect = new Rectangle(padding, 1, GetCellSize(), GetCellSize());
			Rectangle ballRect = cellRect;
			ballRect.Inflate(-2, -2);

			if (Game.VirtualBalls != null)
			{
				Ball[] balls = Game.VirtualBalls;
				for (int i = 0; i < balls.Length; i++)
				{
					g.FillRectangle(new SolidBrush(Preferences.IndicatorBgColor), cellRect);
					g.DrawRectangle(fieldPen, cellRect);
					g.FillEllipse(new SolidBrush(Preferences.GetBallColor(balls[i].Color)), ballRect);
					g.DrawEllipse(new Pen(Preferences.GetBallBorderColor(balls[i].Color)), ballRect);

					cellRect.Offset(GetCellSize(), 0);
					ballRect.Offset(GetCellSize(), 0);
				}
			}

			// Step indicator
			float fontSizePx = GetCellSize() - 5;
			float fontSizePt = fontSizePx * AppSettings.Instance.FactorPxToPt;
			Brush textBrush = new SolidBrush(Preferences.IndicatorTextColor);
			Font font = new Font(FontFamily.GenericSansSerif, fontSizePt, FontStyle.Bold);
			RectangleF textRect = new RectangleF(3, 1, padding - 6, this.Height - 2);
			g.DrawString("Step: " + Game.StepCount, font, textBrush, textRect);

			// Score indicator
			textRect = new RectangleF(this.Width - padding + 3, 1, padding - 6, this.Height - 2);
			g.DrawString("Score: " + Game.Score, font, textBrush, textRect);
		}

		/// <summary>
		/// Reterns the size of a square to display incoming balls.
		/// </summary>
		/// <returns>The size in pixels of a square to display incoming balls.</returns>
		private int GetCellSize()
		{
			return this.Height - 5;
		}
	}
}