.: The Framerate Counter
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A games framerate is the number of times the screen is refreshed every second. The lower a framerate the more chance that the game will stutter and display graphical distortions. Keeping the framerate above 40 is good but keeping it above 25 is a must. So with this in mind it would be good if we could display the framerate when the game is running, this is done as follows:
Open your project or download the one from Tutorial 2. Once open right-click the project name in the solution explorer and select Add Class. name this class Framerate. |
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The code for this new class is as follows:
Public Class FrameRate
Public Shared Function CalculateFrameRate() As Integer
If System.Environment.TickCount - lastTick >= 1000 Then
lastFrameRate = frameRate
frameRate = 0
lastTick = System.Environment.TickCount
End If
frameRate += 1
Return lastFrameRate
End Function 'CalculateFrameRate
Private Shared lastTick As Integer
Private Shared lastFrameRate As Integer
Private Shared frameRate As Integer
End Class
Then in the OnPaint Method of your game's main form type this:
'Display framerate on window title bar
Me.Text = String.Format("The framerate is {0}", FrameRate.CalculateFrameRate()
Thats it, now run your program and the framerate will be displayed i the title bar:
Now you can return to the tutorials page and work through the next tutorial.
Framerate Counter Source Code - 40Kb
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