c6d1b8f443
* Use the using directive for SlimDX namespace * Remove dependency on SlimDX * Remove dependency on SlimDX
570 lines
18 KiB
C#
570 lines
18 KiB
C#
/*
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* Copyright (c) 2007-2009 SlimDX Group
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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using System;
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using System.ComponentModel;
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using System.Threading;
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using System.Windows.Forms;
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using SharpDX;
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using SharpDX.Direct3D9;
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using System.Collections.ObjectModel;
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namespace SampleFramework
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{
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/// <summary>
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/// Presents an easy to use wrapper for making games and samples.
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/// </summary>
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public abstract class Game : IDisposable
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{
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GameClock clock = new GameClock();
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GameTime gameTime = new GameTime();
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TimeSpan maximumElapsedTime = TimeSpan.FromMilliseconds(500.0);
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TimeSpan totalGameTime;
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TimeSpan accumulatedElapsedGameTime;
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TimeSpan lastFrameElapsedGameTime;
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TimeSpan lastFrameElapsedRealTime;
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TimeSpan targetElapsedTime = TimeSpan.FromTicks(166667);
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TimeSpan inactiveSleepTime = TimeSpan.FromMilliseconds(20.0);
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int updatesSinceRunningSlowly1 = int.MaxValue;
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int updatesSinceRunningSlowly2 = int.MaxValue;
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bool forceElapsedTimeToZero;
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bool drawRunningSlowly;
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long lastUpdateFrame;
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float lastUpdateTime;
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/// <summary>
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/// Occurs when the game is disposed.
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/// </summary>
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public event EventHandler Disposed;
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/// <summary>
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/// Occurs when the game is activated.
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/// </summary>
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public event EventHandler Activated;
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/// <summary>
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/// Occurs when the game is deactivated.
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/// </summary>
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public event EventHandler Deactivated;
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/// <summary>
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/// Occurs when the game is exiting.
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/// </summary>
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public event EventHandler Exiting;
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/// <summary>
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/// Occurs when a drawing frame is about to start.
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/// </summary>
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public event CancelEventHandler FrameStart;
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/// <summary>
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/// Occurs when a drawing frame ends.
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/// </summary>
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public event EventHandler FrameEnd;
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/// <summary>
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/// Gets or sets the inactive sleep time.
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/// </summary>
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/// <value>The inactive sleep time.</value>
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public TimeSpan InactiveSleepTime
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{
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get { return inactiveSleepTime; }
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set
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{
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// error checking
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if (value < TimeSpan.Zero)
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throw new ArgumentOutOfRangeException("value", "Inactive sleep time cannot be less than zero.");
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inactiveSleepTime = value;
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}
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}
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/// <summary>
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/// Gets or sets the target elapsed time.
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/// </summary>
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/// <value>The target elapsed time.</value>
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public TimeSpan TargetElapsedTime
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{
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get { return targetElapsedTime; }
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set
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{
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// error checking
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if (value <= TimeSpan.Zero)
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throw new ArgumentOutOfRangeException("value", "Target elapsed time must be greater than zero.");
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targetElapsedTime = value;
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}
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}
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/// <summary>
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/// Gets or sets a value indicating whether the game is using a fixed time step.
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/// </summary>
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/// <value>
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/// <c>true</c> if the game is using a fixed time step; otherwise, <c>false</c>.
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/// </value>
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public bool IsFixedTimeStep
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{
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get;
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set;
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}
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/// <summary>
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/// Gets a value indicating whether this <see cref="Game"/> is exiting.
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/// </summary>
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/// <value><c>true</c> if exiting; otherwise, <c>false</c>.</value>
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public bool IsExiting
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{
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get;
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private set;
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}
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/// <summary>
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/// Gets or sets a value indicating whether this instance is running.
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/// </summary>
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/// <value>
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/// <c>true</c> if this instance is running; otherwise, <c>false</c>.
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/// </value>
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public bool IsRunning
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{
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get;
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private set;
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}
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/// <summary>
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/// Gets the game window.
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/// </summary>
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/// <value>The game window.</value>
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public GameWindow Window
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{
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get;
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private set;
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}
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/// <summary>
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/// Gets the graphics device manager.
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/// </summary>
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/// <value>The graphics device manager.</value>
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public GraphicsDeviceManager GraphicsDeviceManager
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{
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get;
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private set;
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}
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/// <summary>
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/// Gets or sets a value indicating whether this <see cref="Game"/> is active.
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/// </summary>
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/// <value><c>true</c> if active; otherwise, <c>false</c>.</value>
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public bool IsActive
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{
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get;
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private set;
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}
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/// <summary>
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/// Initializes the <see cref="Game"/> class.
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/// </summary>
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static Game()
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{
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// configure SlimDX
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//Configuration.ThrowOnError = true;
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//Configuration.AddResultWatch(ResultCode.DeviceLost, ResultWatchFlags.AlwaysIgnore);
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//Configuration.AddResultWatch(ResultCode.WasStillDrawing, ResultWatchFlags.AlwaysIgnore);
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#if DEBUG
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//Configuration.DetectDoubleDispose = true;
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Configuration.EnableObjectTracking = true;
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#else
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//Configuration.DetectDoubleDispose = false;
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Configuration.EnableObjectTracking = false;
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#endif
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// setup the application
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Application.EnableVisualStyles();
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Application.SetCompatibleTextRenderingDefault(false);
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}
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/// <summary>
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/// Initializes a new instance of the <see cref="Game"/> class.
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/// </summary>
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protected Game()
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{
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IsFixedTimeStep = true;
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Window = new GameWindow();
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Window.ApplicationActivated += Window_ApplicationActivated;
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Window.ApplicationDeactivated += Window_ApplicationDeactivated;
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Window.Suspend += Window_Suspend;
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Window.Resume += Window_Resume;
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Window.Paint += Window_Paint;
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GraphicsDeviceManager = new GraphicsDeviceManager(this);
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}
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/// <summary>
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/// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
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/// </summary>
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public void Dispose()
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{
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// GraphicsDeviceManager.Dispose will come around and call the Dispose(bool)
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// overload, so we don't need to do it here. It's convoluted, but it works well.
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if (GraphicsDeviceManager != null)
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GraphicsDeviceManager.Dispose();
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GraphicsDeviceManager = null;
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if (Disposed != null)
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Disposed(this, EventArgs.Empty);
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GC.SuppressFinalize(this);
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}
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/// <summary>
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/// Exits the game.
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/// </summary>
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public void Exit()
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{
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// request the game to terminate
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IsExiting = true;
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}
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/// <summary>
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/// Runs the game.
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/// </summary>
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public void Run()
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{
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IsRunning = true;
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try
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{
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gameTime.ElapsedGameTime = 0;
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gameTime.ElapsedRealTime = 0;
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gameTime.TotalGameTime = (float)totalGameTime.TotalSeconds;
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gameTime.TotalRealTime = (float)clock.CurrentTime.TotalSeconds;
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gameTime.IsRunningSlowly = false;
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Update(gameTime);
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Application.Idle += Application_Idle;
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Application.Run(Window);
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}
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finally
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{
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Application.Idle -= Application_Idle;
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IsRunning = false;
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OnExiting(EventArgs.Empty);
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}
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}
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/// <summary>
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/// Performs one complete frame for the game.
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/// </summary>
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public void Tick()
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{
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// if we are exiting, do nothing
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if (IsExiting)
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return;
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// if we are inactive, sleep for a bit
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//if (!IsActive)
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// Thread.Sleep((int)InactiveSleepTime.TotalMilliseconds);
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clock.Step();
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gameTime.TotalRealTime = (float)clock.CurrentTime.TotalSeconds;
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gameTime.ElapsedRealTime = (float)clock.ElapsedTime.TotalSeconds;
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lastFrameElapsedRealTime += clock.ElapsedTime;
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TimeSpan elapsedAdjustedTime = clock.ElapsedAdjustedTime;
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if (elapsedAdjustedTime < TimeSpan.Zero)
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elapsedAdjustedTime = TimeSpan.Zero;
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if (forceElapsedTimeToZero)
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{
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gameTime.ElapsedRealTime = 0;
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lastFrameElapsedRealTime = elapsedAdjustedTime = TimeSpan.Zero;
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forceElapsedTimeToZero = false;
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}
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// cap the adjusted time
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if (elapsedAdjustedTime > maximumElapsedTime)
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elapsedAdjustedTime = maximumElapsedTime;
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// check if we are using a fixed or variable time step
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if (IsFixedTimeStep)
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{
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accumulatedElapsedGameTime += elapsedAdjustedTime;
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long ratio = accumulatedElapsedGameTime.Ticks / TargetElapsedTime.Ticks;
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accumulatedElapsedGameTime = TimeSpan.FromTicks(accumulatedElapsedGameTime.Ticks % TargetElapsedTime.Ticks);
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lastFrameElapsedGameTime = TimeSpan.Zero;
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if (ratio == 0)
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return;
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TimeSpan targetElapsedTime = TargetElapsedTime;
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if (ratio > 1)
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{
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updatesSinceRunningSlowly2 = updatesSinceRunningSlowly1;
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updatesSinceRunningSlowly1 = 0;
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}
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else
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{
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if (updatesSinceRunningSlowly1 < int.MaxValue)
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updatesSinceRunningSlowly1++;
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if (updatesSinceRunningSlowly2 < int.MaxValue)
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updatesSinceRunningSlowly2++;
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}
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drawRunningSlowly = updatesSinceRunningSlowly2 < 20;
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// update until it's time to draw the next frame
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while (ratio > 0 && !IsExiting)
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{
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ratio -= 1;
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try
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{
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gameTime.ElapsedGameTime = (float)targetElapsedTime.TotalSeconds;
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gameTime.TotalGameTime = (float)totalGameTime.TotalSeconds;
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gameTime.IsRunningSlowly = drawRunningSlowly;
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Update(gameTime);
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}
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finally
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{
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lastFrameElapsedGameTime += targetElapsedTime;
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totalGameTime += targetElapsedTime;
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}
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}
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}
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else
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{
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drawRunningSlowly = false;
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updatesSinceRunningSlowly1 = int.MaxValue;
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updatesSinceRunningSlowly2 = int.MaxValue;
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// make sure we shouldn't be exiting
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if (!IsExiting)
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{
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try
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{
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gameTime.ElapsedGameTime = 0;
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lastFrameElapsedGameTime = elapsedAdjustedTime;
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gameTime.TotalGameTime = (float)totalGameTime.TotalSeconds;
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gameTime.IsRunningSlowly = false;
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Update(gameTime);
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}
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finally
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{
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totalGameTime += elapsedAdjustedTime;
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}
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}
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}
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DrawFrame();
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// refresh the FPS counter once per second
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lastUpdateFrame++;
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if ((float)clock.CurrentTime.TotalSeconds - lastUpdateTime > 1.0f)
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{
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gameTime.FramesPerSecond = (float)lastUpdateFrame / (float)(clock.CurrentTime.TotalSeconds - lastUpdateTime);
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lastUpdateTime = (float)clock.CurrentTime.TotalSeconds;
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lastUpdateFrame = 0;
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}
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}
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/// <summary>
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/// Resets the elapsed time.
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/// </summary>
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public void ResetElapsedTime()
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{
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forceElapsedTimeToZero = true;
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updatesSinceRunningSlowly1 = int.MaxValue;
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updatesSinceRunningSlowly2 = int.MaxValue;
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}
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/// <summary>
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/// Allows the game to perform logic processing.
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/// </summary>
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/// <param name="gameTime">The time passed since the last update.</param>
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protected virtual void Update(GameTime gameTime)
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{
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}
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/// <summary>
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/// Called when a frame is ready to be drawn.
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/// </summary>
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/// <param name="gameTime">The time passed since the last frame.</param>
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protected virtual void Draw(GameTime gameTime)
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{
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}
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/// <summary>
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/// Initializes the game.
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/// </summary>
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protected internal virtual void Initialize()
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{
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}
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/// <summary>
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/// Loads graphical resources.
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/// </summary>
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protected internal virtual void LoadContent()
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{
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}
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/// <summary>
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/// Unloads graphical resources.
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/// </summary>
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protected internal virtual void UnloadContent()
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{
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}
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/// <summary>
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/// Releases unmanaged and - optionally - managed resources
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/// </summary>
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/// <param name="disposing"><c>true</c> to release both managed and unmanaged resources; <c>false</c> to release only unmanaged resources.</param>
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protected internal virtual void Dispose(bool disposing)
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{
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}
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/// <summary>
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/// Raises the <see cref="E:Activated"/> event.
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/// </summary>
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/// <param name="e">The <see cref="System.EventArgs"/> instance containing the event data.</param>
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protected virtual void OnActivated(EventArgs e)
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{
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if (Activated != null)
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Activated(this, e);
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}
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/// <summary>
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/// Raises the <see cref="E:Deactivated"/> event.
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/// </summary>
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/// <param name="e">The <see cref="System.EventArgs"/> instance containing the event data.</param>
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protected virtual void OnDeactivated(EventArgs e)
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{
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if (Deactivated != null)
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Deactivated(this, e);
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}
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/// <summary>
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/// Raises the <see cref="E:Exiting"/> event.
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/// </summary>
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/// <param name="e">The <see cref="System.EventArgs"/> instance containing the event data.</param>
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protected virtual void OnExiting(EventArgs e)
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{
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if (Exiting != null)
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Exiting(this, e);
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}
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/// <summary>
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/// Raises the <see cref="E:FrameStart"/> event.
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/// </summary>
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/// <param name="e">The <see cref="System.ComponentModel.CancelEventArgs"/> instance containing the event data.</param>
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protected virtual void OnFrameStart(CancelEventArgs e)
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{
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if (FrameStart != null)
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FrameStart(this, e);
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}
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/// <summary>
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/// Raises the <see cref="E:FrameEnd"/> event.
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/// </summary>
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/// <param name="e">The <see cref="System.EventArgs"/> instance containing the event data.</param>
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protected virtual void OnFrameEnd(EventArgs e)
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{
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if (FrameEnd != null)
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FrameEnd(this, e);
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}
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void DrawFrame()
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{
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try
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{
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if ( !IsExiting /* && !Window.IsMinimized */ ) // #28230 2012.5.1 yyagi
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{
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CancelEventArgs e = new CancelEventArgs(false);
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OnFrameStart(e);
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if (!e.Cancel)
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{
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gameTime.TotalRealTime = (float)clock.CurrentTime.TotalSeconds;
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gameTime.ElapsedRealTime = (float)lastFrameElapsedRealTime.TotalSeconds;
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gameTime.TotalGameTime = (float)totalGameTime.TotalSeconds;
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gameTime.ElapsedGameTime = (float)lastFrameElapsedGameTime.TotalSeconds;
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gameTime.IsRunningSlowly = drawRunningSlowly;
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Draw(gameTime);
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OnFrameEnd(EventArgs.Empty);
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}
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}
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}
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finally
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{
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lastFrameElapsedGameTime = TimeSpan.Zero;
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lastFrameElapsedRealTime = TimeSpan.Zero;
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}
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}
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void Application_Idle(object sender, EventArgs e)
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{
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NativeMessage message;
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while (!NativeMethods.PeekMessage(out message, IntPtr.Zero, 0, 0, 0))
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{
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if (IsExiting)
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Window.Close();
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else
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Tick();
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}
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}
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void Window_ApplicationDeactivated(object sender, EventArgs e)
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{
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if (IsActive)
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{
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IsActive = false;
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OnDeactivated(EventArgs.Empty);
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}
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}
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void Window_ApplicationActivated(object sender, EventArgs e)
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{
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if (!IsActive)
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{
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IsActive = true;
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OnActivated(EventArgs.Empty);
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}
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}
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void Window_Paint(object sender, PaintEventArgs e)
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{
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DrawFrame();
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}
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void Window_Resume(object sender, EventArgs e)
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{
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clock.Resume();
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}
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void Window_Suspend(object sender, EventArgs e)
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{
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clock.Suspend();
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}
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}
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}
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