/// <summary>
/// Returns a string with some internal engine information. Use this for debugging, especially when the game slows down.
/// </summary>
/// <returns>Internal engine information.</returns>
public string GetDiagnostics()
{
string output = "";
output += "Number of objects in hierarchy: " + CountSubtreeSize(this) + '\n';
output += "OnBeforeStep delegates: " + (OnBeforeStep == null?0:OnBeforeStep.GetInvocationList().Length) + '\n';
output += "OnAfterStep delegates: " + (OnAfterStep == null?0:OnAfterStep.GetInvocationList().Length) + '\n';
output += "OnAfterRender delegates: " + (OnAfterRender == null?0:OnAfterRender.GetInvocationList().Length) + '\n';
output += Texture2D.GetDiagnostics();
output += _collisionManager.GetDiagnostics();
output += _updateManager.GetDiagnostics();
return(output);
}
