private bool GetIfShouldGenerateStateVariable(Gum.DataTypes.Variables.VariableSave variable, ElementSave container)
{
bool toReturn = true;
string variableName = variable.GetRootName();
if (variable.Value == null || !variable.SetsValue)
{
toReturn = false;
}
// states can't set states on this
if (variable.IsState(container) && string.IsNullOrEmpty(variable.SourceObject))
{
toReturn = false;
}
if (toReturn && mVariableNamesToSkipForStates.Contains(variableName))
{
toReturn = false;
}
bool hasSourceObject = !string.IsNullOrEmpty(variable.SourceObject);
if (toReturn && hasSourceObject)
{
InstanceSave instanceSave = container.GetInstance(variable.SourceObject);
if (instanceSave == null)
{
toReturn = false;
}
else
{
var baseElement = Gum.Managers.ObjectFinder.Self.GetElementSave(instanceSave.BaseType);
if (baseElement == null)
{
toReturn = false;
}
if (toReturn)
{
// Gum (just like Glue) keeps variables that aren't needed around. This allows users to rename things and not lose
// important information accidentally. But because of that we have to make sure that the variable we're working with is
// valid for the type of object we're dealing with.
var defaultState = baseElement.DefaultState;
// October 26, 2018
// Bernardo reported
// a crash caused by the
// RecursiveVariableFinder
// being given a state without
// a ParentContainer. This is a
// sign that the element hasn't
// been initialized yet. Elements
// should be initialized, but if they're
// not, we could just catch it here and initialize
// it on the spot. Not sure if I like this solution
// or not. It allows code to behave a little unpredictably,
// but at the same time, we could simply solve the problem by
// initializing here, so I'm going to do that:
if (defaultState.ParentContainer == null)
{
baseElement.Initialize(null);
}
RecursiveVariableFinder rvf = new RecursiveVariableFinder(defaultState);
var foundVariable = rvf.GetVariable(variable.GetRootName());
if (foundVariable == null)
{
// This doesn't exist anywhere in the inheritance chain, so we don't want to generate it:
toReturn = false;
}
}
}
}
if (toReturn && !hasSourceObject)
{
// If a variable is part of a component, it better be defined in the base type or else we won't generate it.
// For example, consider a component that used to inherit from Text. It will have variables for fonts. If that
// component switches to inheriting from Sprite, those variables will still exist in the XML for that component,
// but we shouldn't generate any state variables for those variables. So we'll go to the base type and see if those
// variables exist
bool isComponent = container is ComponentSave;
var rootStandardElementSave = Gum.Managers.ObjectFinder.Self.GetRootStandardElementSave(container);
// If the Container is a Screen, then rootComponent will be null, so we don't need to do anything
if (rootStandardElementSave == null)
{
toReturn = false;
}
else
{
IEnumerable <VariableSave> variablesToCheck;
// This code used to get the default state from the rootStandardElementSave,
// but the standard element save can have variables missing from the Gum XML,
// but it should still support them based on the definition in the StandardElementsManager,
// especially if new variables have been added in the future. Therefore, use the StandardElementsManager
// rather than the DefaultState:
//var rootStandardElementVariables = rootStandardElementSave.DefaultState.Variables;
var rootStandardElementVariables = StandardElementsManager.Self
.DefaultStates[rootStandardElementSave.Name].Variables;
if (isComponent)
{
var component = Gum.Managers.ObjectFinder.Self.GetStandardElement("Component");
variablesToCheck = rootStandardElementVariables.Concat(component.DefaultState.Variables).ToList();
}
else
{
variablesToCheck = rootStandardElementVariables.ToList();
}
bool wasMatchFound = variablesToCheck.Any(item => item.Name == variable.GetRootName());
toReturn = wasMatchFound;
}
}
return(toReturn);
}
private bool GetIfShouldGenerateStateVariable(Gum.DataTypes.Variables.VariableSave variable, ElementSave container)
{
bool toReturn = true;
string variableName = variable.GetRootName();
if (variable.Value == null || !variable.SetsValue)
{
toReturn = false;
}
// states can't set states on this
if (variable.IsState(container) && string.IsNullOrEmpty(variable.SourceObject))
{
toReturn = false;
}
if (toReturn && mVariableNamesToSkipForStates.Contains(variableName))
{
toReturn = false;
}
bool hasSourceObject = !string.IsNullOrEmpty(variable.SourceObject);
if (toReturn && hasSourceObject)
{
InstanceSave instanceSave = container.GetInstance(variable.SourceObject);
if (instanceSave == null)
{
toReturn = false;
}
else
{
var baseElement = Gum.Managers.ObjectFinder.Self.GetElementSave(instanceSave.BaseType);
if (baseElement == null)
{
toReturn = false;
}
if (toReturn)
{
// Gum (just like Glue) keeps variables that aren't needed around. This allows users to rename things and not lose
// important information accidentally. But because of that we have to make sure that the variable we're working with is
// valid for the type of object we're dealing with.
var defaultState = baseElement.DefaultState;
RecursiveVariableFinder rvf = new RecursiveVariableFinder(defaultState);
var foundVariable = rvf.GetVariable(variable.GetRootName());
if (foundVariable == null)
{
// This doesn't exist anywhere in the inheritance chain, so we don't want to generate it:
toReturn = false;
}
}
}
}
if (toReturn && !hasSourceObject)
{
// If a variable is part of a component, it better be defined in the base type or else we won't generate it.
// For example, consider a component that used to inherit from Text. It will have variables for fonts. If that
// component switches to inheriting from Sprite, those variables will still exist in the XML for that component,
// but we shouldn't generate any state variables for those variables. So we'll go to the base type and see if those
// variables exist
bool isComponent = container is ComponentSave;
var rootComponent = Gum.Managers.ObjectFinder.Self.GetRootStandardElementSave(container);
// If the Container is a Screen, then rootComponent will be null, so we don't need to do anything
if (rootComponent == null)
{
toReturn = false;
}
else
{
IEnumerable <VariableSave> variablesToCheck;
if (isComponent)
{
var component = Gum.Managers.ObjectFinder.Self.GetStandardElement("Component");
variablesToCheck = rootComponent.DefaultState.Variables.Concat(component.DefaultState.Variables);
}
else
{
var defaultState = rootComponent.DefaultState;
variablesToCheck = defaultState.Variables;
}
bool wasMatchFound = variablesToCheck.Any(item => item.Name == variable.GetRootName());
toReturn = wasMatchFound;
}
}
return(toReturn);
}
