public void Unexecute() { ConstraintSolver solver = ConstraintSolver.Instance(); this.target.Move(this.delta); solver.SetMemento(this.state); // restore solver state solver.Solve(); }
public void Execute() { ConstraintSolver solver = ConstraintSolver.Instance(); this.state = solver.CreateMemento(); // create a memento this.target.Move(this.delta); solver.Solve(); }