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59 lines
1.7 KiB
PHP
Executable File
59 lines
1.7 KiB
PHP
Executable File
<?php
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/**
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* Jingga
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*
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* PHP Version 8.2
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*
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* @package phpOMS\Algorithm\PathFinding
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* @copyright Dennis Eichhorn
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* @license OMS License 2.0
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* @version 1.0.0
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* @link https://jingga.app
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*/
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declare(strict_types=1);
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namespace phpOMS\Algorithm\PathFinding;
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use phpOMS\Math\Topology\Metrics2D;
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/**
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* Node on grid.
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*
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* @package phpOMS\Algorithm\PathFinding
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* @license OMS License 2.0
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* @link https://jingga.app
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* @since 1.0.0
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*/
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final class Heuristic
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{
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/**
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* Calculate metric/distance between two nodes.
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*
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* @param array<string, int|float> $node1 Array with 'x' and 'y' coordinate
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* @param array<string, int|float> $node2 Array with 'x' and 'y' coordinate
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* @param int $heuristic Heuristic to use for calculation
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*
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* @return float
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*
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* @since 1.0.0
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*/
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public static function metric(array $node1, array $node2, int $heuristic) : float
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{
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if ($heuristic === HeuristicType::MANHATTAN) {
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return Metrics2D::manhattan($node1, $node2);
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} elseif ($heuristic === HeuristicType::EUCLIDEAN) {
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return Metrics2D::euclidean($node1, $node2);
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} elseif ($heuristic === HeuristicType::OCTILE) {
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return Metrics2D::octile($node1, $node2);
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} elseif ($heuristic === HeuristicType::MINKOWSKI) {
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return Metrics2D::minkowski($node1, $node2, 1);
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} elseif ($heuristic === HeuristicType::CANBERRA) {
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return Metrics2D::canberra($node1, $node2);
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} elseif ($heuristic === HeuristicType::BRAY_CURTIS) {
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return Metrics2D::brayCurtis($node1, $node2);
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}
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return Metrics2D::chebyshev($node1, $node2);
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}
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}
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