public Builder(RegressiveState original = default(RegressiveState))
{
if (original.ranges == null) // Check for default instance
{
this.ranges = new Dictionary <SymbolId, ValueRange>();
}
else
{
this.ranges = new Dictionary <SymbolId, ValueRange>(original.ranges);
}
}
public RegressiveState Populate(Goal goal, RegressiveState initialState = default(RegressiveState))
{
var builder = initialState.BuildUpon();
foreach (var precondition in goal.Preconditions)
{
// IntersectRange() has the effect of merging preconditions on the same symbol
builder.IntersectRange(precondition.SymbolId, precondition.AsValueRange);
}
return(builder.Build());
}
public static RegressiveNode MakeRegular(
RegressiveState currentConstraints,
WorldState initialState,
INodeExpander <RegressiveNode> nodeExpander
)
{
return(new RegressiveNode(
currentConstraints,
//default(WorldState),
initialState,
PreconditionUtils.EnsureNotNull(nodeExpander, "nodeExpander"),
false
));
}
private RegressiveNode(
RegressiveState currentConstraints,
WorldState initialState,
INodeExpander <RegressiveNode> nodeExpander,
bool isTarget
)
{
DebugUtils.Assert(
isTarget || nodeExpander != null,
"Unless isTarget is true, nodeExpander must not be null"
);
this.currentConstraints = currentConstraints;
this.initialState = initialState;
this.nodeExpander = nodeExpander;
this.IsTarget = isTarget;
}