public override void Undo(ref IState state, Edge edge)
{
IUndoToken undo = edge.UndoToken;
state.H = undo.H;
Array.Reverse(state.Arr, 0, undo.Op.Vals[0] + 1);
}
public Edge(int cost, Operation op, Operation pop)
{
this.op = op;
this.cost = cost;
this.pop = pop;
child = null;
undoToken = null;
}
public override void Undo(ref IState state, Edge edge)
{
IUndoToken undo = edge.UndoToken;
state.H = undo.H;
Operation op = edge.OP;
state.Arr[op.Vals[0] - 1] = op.Vals[2];
}
public override void Undo(ref IState state, Edge edge)
{
IUndoToken undo = edge.UndoToken;
state.H = undo.H;
state.Arr[state.Op.Vals[0]] = state.Arr[undo.Op.Vals[0]];
state.Op = undo.Op;
state.Arr[undo.Op.Vals[0]] = 0;
}