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<<TableOfContents>>

XXX TODO: description of the role of scalar evaluators and the connection to [[Doc/Heuristic|Heuristic]]

== g-value evaluator ==

Returns the g-value (path cost) of the search node.

{{{
g()
}}}

== Preference evaluator ==

Returns 0 if preferred is true and 1 otherwise.

{{{
pref()
}}}

== Sum evaluator ==

Calculates the sum of the sub-evaluators.

{{{
sum(evals)
}}}

 * ''evals'' (list of [[Doc/ScalarEvaluator|ScalarEvaluator]]): at least one scalar evaluator
== Weighted evaluator ==
Multiplies the value of the scalar evaluator with the given weight.
{{{
weight(eval, weight)
}}}


 * ''eval'' ([[Doc/ScalarEvaluator|ScalarEvaluator]]): scalar evaluator
 * ''weight'' (int): weight

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