src/animation/scripted_transition_condition.cpp

#include "rive/animation/scripted_transition_condition.hpp"
#include "rive/animation/state_machine_instance.hpp"
#include "rive/importers/state_machine_importer.hpp"

using namespace rive;

ScriptedTransitionCondition::~ScriptedTransitionCondition()
{
  disposeScriptInputs();
}

void ScriptedTransitionCondition::disposeScriptInputs()
{
  auto props = m_customProperties;
  ScriptedObject::disposeScriptInputs();
  for (auto prop : props)
  {
    auto scriptInput = ScriptInput::from(prop);
    if (scriptInput != nullptr)
    {
#ifdef WITH_RIVE_EDITOR
      if (prop->editorArena() != nullptr)
        continue;
#endif
      // ScriptedDataConverters need to delete their own inputs
      // because they are not components
      delete scriptInput;
    }
  }
}

// Note: evaluateStateful is the actual instance of the
// ScriptedTransitionCondition that will run the script. evaluate itself will
// look for the map between the stateless and the stateful instances of this
// class.
bool ScriptedTransitionCondition::evaluateStateful(
    const StateMachineInstance* stateMachineInstance,
    StateMachineLayerInstance* layerInstance) const
{
  bool result = false;
#ifdef WITH_RIVE_SCRIPTING
  if (m_vm != nullptr && m_vm->valid())
  {
    result = m_vm->callBooleanMethod(
        const_cast<ScriptedTransitionCondition*>(this),
        m_self,
        "evaluate");
  }
#endif
  return result;
}

bool ScriptedTransitionCondition::evaluate(
    const StateMachineInstance* stateMachineInstance,
    StateMachineLayerInstance* layerInstance) const
{
#ifdef WITH_RIVE_SCRIPTING
  auto scriptedObject = stateMachineInstance->scriptedObject(this);
  if (scriptedObject != nullptr)
  {
    auto statefulListenerAction = static_cast<ScriptedTransitionCondition*>(
        scriptedObject);
    return statefulListenerAction->evaluateStateful(
        stateMachineInstance,
        layerInstance);
  }
#endif
  return false;
}

StatusCode ScriptedTransitionCondition::import(ImportStack& importStack)
{
  auto result = registerReferencer(importStack);
  if (result != StatusCode::Ok)
  {
    return result;
  }
  auto stateMachineImporter = importStack.latest<StateMachineImporter>(
      StateMachine::typeKey);
  if (stateMachineImporter == nullptr)
  {
    return StatusCode::MissingObject;
  }
  stateMachineImporter->addScriptedObject(this);
  return Super::import(importStack);
}

Core* ScriptedTransitionCondition::clone() const
{
  ScriptedTransitionCondition* twin = ScriptedTransitionConditionBase::clone()
                                          ->as<ScriptedTransitionCondition>();
  if (m_fileAsset != nullptr)
  {
    twin->setAsset(m_fileAsset);
  }
  return twin;
}

ScriptedObject* ScriptedTransitionCondition::cloneScriptedObject(
    DataBindContainer* dataBindContainer) const
{
  auto clonedScriptedObject = clone()->as<ScriptedTransitionCondition>();
  cloneProperties(clonedScriptedObject, dataBindContainer);
  clonedScriptedObject->reinit();
  return clonedScriptedObject;
}

void ScriptedTransitionCondition::addProperty(CustomProperty* prop)
{
  auto scriptInput = ScriptInput::from(prop);
  if (scriptInput != nullptr)
  {
    scriptInput->scriptedObject(this);
  }
  CustomPropertyContainer::addProperty(prop);
}
#ifdef WITH_RIVE_EDITOR
void ScriptedTransitionCondition::editorPrepareForDestruction()
{
  scriptDispose();
  dataContext(nullptr);
}

#endif