Completed
Push — master ( 73004b...66a620 )
by Thijs
02:37
created

DecisionWithScore::isBetterThan()   A

Complexity

Conditions 2
Paths 2

Size

Total Lines 7
Code Lines 4

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 4
CRAP Score 2
Metric Value
dl 0
loc 7
ccs 4
cts 4
cp 1
rs 9.4285
cc 2
eloc 4
nc 2
nop 1
crap 2
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<?php
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namespace lucidtaz\minimax;
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class DecisionWithScore
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{
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    /**
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     * @var Decision
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     */
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    public $decision = null;
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    /**
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     * @var float
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     */
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    public $score;
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    /**
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     * @var integer How deep in the execution tree this result was found. Higher
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     * means earlier. This is to prefer earlier solutions to later solutions
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     * with the same score.
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     */
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    public $age;
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    public function isBetterThan(DecisionWithScore $other): bool
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    {
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        if (abs($this->score - $other->score) < 0.1) {
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            return $this->age > $other->age;
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        }
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        return $this->score > $other->score;
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    }
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    public static function getBestComparator(): \Closure
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    {
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        return function (DecisionWithScore $a, DecisionWithScore $b) {
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            return $a->isBetterThan($b) ? $a : $b;
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        };
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    }
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    public static function getWorstComparator(): \Closure
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    {
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        return function (DecisionWithScore $a, DecisionWithScore $b) {
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            return $b->isBetterThan($a) ? $a : $b;
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        };
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    }
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}
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