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<?php |
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/** |
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* Klass ReduceradKod. |
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* @author Niklas Dougherty |
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*/ |
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declare(strict_types=1); |
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namespace Tips\Moduler\System; |
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/** |
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* Klass ReduceradKod. |
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* Reducera kod enligt reduktionskod. |
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* R-system definieras i Koder. |
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*/ |
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class ReduceradKod extends Reduktion { |
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/** |
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* Beräkna reducerad kod. |
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*/ |
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protected function beräkna_reducerad_kod(): void { |
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$this->beräkna_garderingar(); |
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$antal_hg = count($this->halvgarderingar); |
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/** |
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* Kräv överensstämmelse i garderingar med system. |
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*/ |
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if ( |
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count($this->helgarderingar) != $this->kod->helgarderingar() || |
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$antal_hg != $this->kod->halvgarderingar() |
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) { |
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return; |
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} |
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$kod_halvgarderingar = []; |
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$kod_helgarderingar = []; |
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/** |
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* Reducera. |
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*/ |
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foreach ($this->beräkna_reduktion() as $projektion) { |
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foreach ($projektion as $index => $kodord) { |
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$kod = array_map('intval', str_split($kodord)); |
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$temp = NOLLRAD; |
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match ($index) { |
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0 => $this->helgarderingar($kod, $temp, $kod_helgarderingar), |
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default => $this->halvgarderingar($antal_hg, $kod, $temp, $kod_halvgarderingar) |
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}; |
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} |
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} |
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$this->addera_kodord($antal_hg, $kod_helgarderingar, $kod_halvgarderingar); |
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} |
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/** |
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* Helgarderingar. |
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* @param int[] $kod |
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* @param int[] $temp |
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* @param array<int, int[]> $kod_helgarderingar |
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*/ |
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private function helgarderingar(array $kod, array &$temp, array &$kod_helgarderingar): void { |
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/** |
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* Helgardering. |
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* $projektion håller helgarderingar i [0], halvgarderingar i [1] |
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*/ |
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foreach ($kod as $nyckel => $tecken) { |
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$temp[$this->helgarderingar[$nyckel]] = $tecken; |
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} |
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$kod_helgarderingar[] = $temp; |
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} |
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/** |
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* Halvgarderingar. |
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* @param int[] $kod |
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* @param int[] $temp |
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* @param array<int, int[]> $kod_halvgarderingar |
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*/ |
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private function halvgarderingar(int $antal_hg, array $kod, array &$temp, array &$kod_halvgarderingar): void { |
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/** |
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* Halvgardering. |
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*/ |
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if ($antal_hg) { |
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foreach ($kod as $nyckel => $tecken) { |
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/** |
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* Skifta tecken efter odds. |
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* Mallar förutsätter 1X för halvgarderingar. |
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*/ |
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match (true) { |
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$this->reduktion[$this->halvgarderingar[$nyckel]][0] === '' => |
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$temp[$this->halvgarderingar[$nyckel]] = ($tecken === 0) ? 1 : 2, // skifta 1X -> X2 |
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$this->reduktion[$this->halvgarderingar[$nyckel]][1] === '' => |
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$temp[$this->halvgarderingar[$nyckel]] = ($tecken === 0) ? 0 : 2, // skifta 1X -> 12 |
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default => |
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$temp[$this->halvgarderingar[$nyckel]] = ($tecken === 0) ? 0 : 1 // behåll 1X |
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}; |
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} |
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$kod_halvgarderingar[] = $temp; |
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} |
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} |
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} |
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dougherty-dev /
Tips
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