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using System;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
namespace Noddybox.Emulation
{
/// <summary>
/// Provides a basic clock implementation that is geared towards the VBL.
/// </summary>
public class Clock
{
#region Private fields
private uint perSecond;
private uint perFrame;
private uint perLine;
private uint frameCount;
#endregion
#region Public properties
/// <summary>
/// Returns true if the frame has finished.
/// </summary>
public bool FrameDone
{
get
{
return frameCount > perFrame;
}
}
/// <summary>
/// Returns the current raster line.
/// </summary>
public uint RasterLine
{
get
{
return frameCount / perLine;
}
}
#endregion
#region Public members
/// <summary>
/// Starts a new frame.
/// </summary>
public void StartFrame()
{
if (FrameDone)
{
frameCount -= perFrame;
}
}
#endregion
#region Constructors
/// <summary>
/// Defines a clock.
/// </summary>
/// <param name="ticksPerSecond">The number of ticks per second.</param>
/// <param name="framesPerSecond">The number of frames per second.</param>
public Clock(uint ticksPerSecond, uint framesPerSecond)
{
this.perSecond = ticksPerSecond;
this.perFrame = ticksPerSecond / framesPerSecond;
this.perLine = 1;
this.frameCount = 0;
}
/// <summary>
/// Defines a clock.
/// </summary>
/// <param name="ticksPerSecond">The number of ticks per second.</param>
/// <param name="framesPerSecond">The number of frames per second.</param>
/// <param name="ticksPerLine">The number of clock ticks per raster line.</param>
public Clock(uint ticksPerSecond, uint framesPerSecond, uint ticksPerLine)
{
this.perSecond = ticksPerSecond;
this.perFrame = ticksPerSecond / framesPerSecond;
this.perLine = ticksPerLine;
this.frameCount = 0;
}
#endregion
}
}
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