lucidtaz\minimax\engine\DecisionWithScore

Complexity

Total Complexity

6

Size/Duplication

Total Lines	41
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	0

Test Coverage

Coverage

100%

3 Methods

Rating	Name	Duplication	Size	Complexity
A	isBetterThan()	0	7	2
A	getBestComparator()	0	6	2
A	getWorstComparator()	0	6	2

<?php

namespace lucidtaz\minimax\engine;

use Closure;
use lucidtaz\minimax\game\Decision;

class DecisionWithScore
{
    /**
     * @var Decision
     */
    public $decision = null;

    /**
     * @var float
     */
    public $score;

    /**
     * @var integer How deep in the execution tree this result was found. Higher
     * means earlier. This is to prefer earlier solutions to later solutions
     * with the same score.
     */
    public $age;

    public function isBetterThan(DecisionWithScore $other): bool
    {
        if (abs($this->score - $other->score) < 0.1) {
            return $this->age > $other->age;
        }
        return $this->score > $other->score;
    }

    public static function getBestComparator(): Closure
    {
        return function (DecisionWithScore $a, DecisionWithScore $b) {
            return $a->isBetterThan($b) ? $a : $b;
        };
    }

    public static function getWorstComparator(): Closure
    {
        return function (DecisionWithScore $a, DecisionWithScore $b) {
            return $b->isBetterThan($a) ? $a : $b;
        };
    }
}