public static void ResetStateChanged(IStateChanged state)
{
if (state != null)
{
state.SetStateChanged(false);
}
var properties = state.GetType().GetProperties();
foreach (var property in properties)
{
var value = property.GetValue(state, null);
if (value != null && value is IStateChanged)
{
var changedValue = (IStateChanged)value;
changedValue.SetStateChanged(false);
}
}
var fields = state.GetType().GetFields();
foreach (var field in fields)
{
var value = field.GetValue(state);
if (value != null && value is IStateChanged)
{
var changedValue = (IStateChanged)value;
changedValue.SetStateChanged(false);
}
}
}
// TODO: optimize
public static bool ApplyStateChanged(IStateChanged oldState, IStateChanged newState)
{
if (oldState == null || newState == null)
{
return(oldState != null || newState != null);
}
bool stateChanged = false;
var properties = newState.GetType().GetProperties();
foreach (var property in properties)
{
var newValue = property.GetValue(newState, null);
var oldValue = property.GetValue(oldState, null);
if (newValue is IStateChanged)
{
stateChanged |= ApplyStateChanged((IStateChanged)oldValue, (IStateChanged)newValue);
}
else if (newValue == null && oldValue != null || newValue != null && !newValue.Equals(oldValue))
{
stateChanged = true;
}
}
var fields = newState.GetType().GetFields();
foreach (var field in fields)
{
var newValue = field.GetValue(newState);
var oldValue = field.GetValue(oldState);
if (newValue is IStateChanged)
{
stateChanged |= ApplyStateChanged((IStateChanged)oldValue, (IStateChanged)newValue);
}
else if (newValue == null && oldValue != null || newValue != null && !newValue.Equals(oldValue))
{
stateChanged = true;
}
}
if (stateChanged)
{
newState.SetStateChanged();
}
return(stateChanged);
}