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<?php
namespace lucidtaz\minimax\engine;
use lucidtaz\minimax\game\GameState;
/**
* An value type to hold an evaluation result and possibly a move
* For tree traversal, technically only the evaluation result is needed.
* However, at the root of the tree we need to know which move was selected to
* produce that result, because that's the final answer that the caller is
* interested in.
*/
class TraversalResult
{
* @var ?GameState Empty if the traversed node was a leaf node
public $move;
* @var EvaluationResult
public $evaluation;
private function __construct(EvaluationResult $evaluation, GameState $move = null)
$this->move = $move;
$this->evaluation = $evaluation;
}
public static function create(GameState $move, EvaluationResult $evaluation): TraversalResult
return new static($evaluation, $move);
public static function onlyEvaluation(EvaluationResult $evaluation): TraversalResult
return new static($evaluation);
LucidTaZ /
minimax
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