restoreFrom method

void restoreFrom(LogicBlock<TState> logic)

Restores this logic block's state and blackboard from another logic block of the same type.

Stops this logic block first, then copies the blackboard and state from the source. Throws a StateError if logic has not been started.

Implementation

void restoreFrom(LogicBlock<TState> logic) {
  final state = logic.valueAsObject ?? logic._restoredState;

  if (state == null) {
    throw StateError(
      "Cannot restore from the logic block $logic that hasn't been started "
      'yet.',
    );
  }

  stop();

  for (final type in logic.blackboard.types) {
    blackboard.overwriteObject(type, logic.blackboard.getObject(type));
  }

  final stateType = state.runtimeType;

  blackboard.overwriteObject(stateType, state);
  restoreState(state);
}