Artifact power MS/OS breakdown calculator

ArtifactPower.class.php

<?hh // strict

class ArtifactPower {

  public Map<int, int> $costs = Map {
    1 => 100,
    2 => 400,
    3 => 725,
    4 => 1075,
    5 => 1450,
    6 => 1850,
    7 => 2275,
    8 => 2725,
    9 => 3250,
    10 => 3875,
    11 => 4625,
    12 => 5500,
    13 => 6500,
    14 => 13340,
    15 => 22170,
    16 => 33450,
    17 => 47850,
    18 => 66470,
    19 => 90470,
    20 => 121070,
    21 => 160590,
    22 => 211470,
    23 => 276270,
    24 => 358770,
    25 => 464050,
    26 => 602700,
    27 => 785480,
    28 => 1026350,
    29 => 1341870,
    30 => 1759430,
    31 => 2305430,
    32 => 3023630,
    33 => 3970290,
    34 => 5216130,
    35 => 6851330,
    36 => 8766330,
    37 => 10776330,
    38 => 12886330,
    39 => 15101330,
    40 => 17426330,
    41 => 19866330,
    42 => 22426330,
    43 => 25116330,
    44 => 27941330,
    45 => 30906330,
    46 => 34021330,
    47 => 37291330,
    48 => 40726330,
    49 => 44331330,
    50 => 48116330,
    51 => 52091330,
    52 => 56266330,
    53 => 60651330,
    54 => 65256330,
  };

  public function getCost(int $level): int {
    if ($level < 1 || $level > 54) {
      throw new Exception("Artifact power level out of bounds.");
    }

    return $this->costs[$level];
  }

  public function getMaxLevel(int $cost): int {
    $matches = $this->costs->filter($c ==> $c <= $cost);
    ksort($matches);

    return $matches->lastKey() ?: 0;
  }

  public function getPairs(int $points): Vector<Pair<int, int>> {
    $mainSpecLevel = $this->getMaxLevel($points);
    $maxOffSpecLevel = 0;
    $results = Vector {};
    do {
      $offSpecPoints = $points - $this->getCost($mainSpecLevel);
      $offSpecLevel = $this->getMaxLevel($offSpecPoints);
      if ($offSpecLevel > $maxOffSpecLevel) {
        $results[] = Pair { $mainSpecLevel, $offSpecLevel };
        $maxOffSpecLevel = $offSpecLevel;
      }
    } while (--$mainSpecLevel > $maxOffSpecLevel);

    return $results;
  }

  public function printResults(Vector<Pair<int, int>> $results): void {
    print "-----------" . PHP_EOL;
    print "| MS | OS |" . PHP_EOL;
    print "-----------" . PHP_EOL;
    print implode(PHP_EOL, $results->map($r ==> '| ' . str_pad($r[0], 2, ' ', STR_PAD_LEFT) . ' | ' . str_pad($r[1], 2, ' ', STR_PAD_LEFT) . ' |')) . PHP_EOL;
    print "-----------" . PHP_EOL;
  }

  public function processPoints(array<int> $totals): void {
    foreach ($totals as $p) {
      $pairs = $this->getPairs($p);
      print "$p Points:" . PHP_EOL;
      $this->printResults($pairs);
    }
  }

}

script.php

<?php

include 'ArtifactPower.class.php';

$ap = new ArtifactPower();

$points = array(
  80000,
  110000,
  145000,
  200000,
  266000,
  360000,
  495000,
  675000,
  920000,
  1247000,
  1577000,
  1917000,
  2257000,
  2597000,
  2937000,
);

$ap->processPoints($points);