internal override void Run()
{
Debug.Assert(InitCallback != null, $"{nameof(InitCallback)} is null");
Debug.Assert(RunCallback != null, $"{nameof(RunCallback)} is null");
// Initialize the init callback
InitCallback();
Debug.Assert(GameContext is GameContextWinforms, "There is only one possible descendant of GameContext<Control>.");
var context = (GameContextWinforms)GameContext;
if (context.IsUserManagingRun)
{
context.RunCallback = RunCallback;
context.ExitCallback = ExitCallback;
}
else
{
var runCallback = new WindowsMessageLoop.RenderCallback(RunCallback);
// Run the rendering loop
try
{
WindowsMessageLoop.Run(Control, () =>
{
if (Exiting)
{
Destroy();
return;
}
runCallback();
});
}
finally
{
ExitCallback?.Invoke();
}
}
}
/// <summary>
/// Runs the specified main loop for the specified windows form.
/// </summary>
/// <param name="form">The form.</param>
/// <param name="renderCallback">The rendering callback.</param>
/// <param name="useApplicationDoEvents">if set to <c>true</c> indicating whether the render loop should use the default <see cref="Application.DoEvents"/> instead of a custom window message loop lightweight for GC. Default is false.</param>
/// <exception cref="System.ArgumentNullException">form
/// or
/// renderCallback</exception>
public static void Run(Control form, RenderCallback renderCallback, bool useApplicationDoEvents = false)
{
if (form == null)
{
throw new ArgumentNullException("form");
}
if (renderCallback == null)
{
throw new ArgumentNullException("renderCallback");
}
form.Show();
using (var renderLoop = new WindowsMessageLoop(form)
{
UseApplicationDoEvents = useApplicationDoEvents
})
{
while (renderLoop.NextFrame())
{
renderCallback();
}
}
}
