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<?php |
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namespace cyberinferno\Cabal\Helpers; |
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use cyberinferno\Cabal\Helpers\Exceptions\InvalidCraftLevelException; |
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use cyberinferno\Cabal\Helpers\Exceptions\InvalidOptionException; |
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use cyberinferno\Cabal\Helpers\Exceptions\MaxOptionException; |
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use cyberinferno\Cabal\Helpers\Exceptions\OptionLimitException; |
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use cyberinferno\Cabal\Helpers\Exceptions\OptionNotFoundException; |
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/** |
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* Class ItemOption |
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* |
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* Contains methods helpful to generate item option |
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* |
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* @package cyberinferno\Cabal\Helpers |
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* @author Karthik P |
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*/ |
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class ItemOption |
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{ |
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const MAX_OPTIONS = 4; |
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const MIN_SLOTS = 0; |
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const MAX_SLOTS = 4; |
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const MIN_CRAFTS = 0; |
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const MAX_CRAFTS = 3; |
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const OUTPUT_FORMAT_INTEGER = 'int'; |
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const OUTPUT_FORMAT_HEXADECIMAL = 'hex'; |
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/** |
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* @var int Max number of slots the generated item option will have |
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*/ |
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protected $_slots; |
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/** |
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* @var array |
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*/ |
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protected $_slotOptions = []; |
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/** |
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* @var int Max number of crafts the generated item option will have |
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*/ |
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protected $_crafts; |
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/** |
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* @var array |
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*/ |
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protected $_craftOptions = []; |
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/** |
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* @var array |
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*/ |
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protected $_availableCraftLevels = ['9', 'A', 'B', 'C', 'D', 'E', 'F']; |
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/** |
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* @var array |
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*/ |
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protected $_availableOptions = [ |
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'1', '2', '3', '4', '5', |
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'6', '7', '8', '9', 'A', |
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'B', 'C', 'D', 'E', 'F' |
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]; |
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/** |
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* ItemOption constructor. |
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* @param int $slots |
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* @param int $crafts |
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* @throws \cyberinferno\Cabal\Helpers\Exceptions\MaxOptionException |
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*/ |
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public function __construct($slots = 0, $crafts = 0) |
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{ |
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if ($slots < self::MIN_SLOTS) { |
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$slots = self::MIN_SLOTS; |
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} |
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if ($slots > self::MAX_SLOTS) { |
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$slots = self::MAX_SLOTS; |
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} |
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if ($crafts < self::MIN_CRAFTS) { |
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$crafts = self::MIN_CRAFTS; |
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} |
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if ($crafts > self::MAX_CRAFTS) { |
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$crafts = self::MAX_CRAFTS; |
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} |
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if ($slots + $crafts > self::MAX_OPTIONS) { |
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throw new MaxOptionException('Maximum number of options cannot exceed ' . self::MAX_OPTIONS); |
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} |
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$this->_slots = $slots; |
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$this->_crafts = $crafts; |
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} |
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/** |
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* Returns the number of slots in the option |
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* |
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* @return int |
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*/ |
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public function getSlots() |
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{ |
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return $this->_slots; |
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} |
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/** |
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* Returns the number of crafts in the option |
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* |
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* @return int |
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*/ |
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public function getCrafts() |
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{ |
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return $this->_crafts; |
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} |
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/** |
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* Returns slot options |
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* |
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* @return array |
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*/ |
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public function getSlotOptions() |
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{ |
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return $this->_slotOptions; |
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} |
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/** |
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* Sets a slot option |
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* |
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* @param string $option |
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* @return ItemOption |
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* @throws InvalidOptionException |
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* @throws OptionLimitException |
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*/ |
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public function setSlotOption($option) |
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{ |
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if (!in_array(strval($option), $this->_availableOptions)) { |
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throw new InvalidOptionException(); |
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} |
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if (count($this->_slotOptions) == $this->_slots) { |
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throw new OptionLimitException('Slot option cannot exceed ' . $this->_slots); |
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} |
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$this->_slotOptions[] = ['option' => (string)$option]; |
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return $this; |
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} |
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/** |
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* Returns craft options |
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* |
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* @return array |
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*/ |
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public function getCraftOptions() |
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{ |
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return $this->_craftOptions; |
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} |
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/** |
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* Sets a craft option |
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* |
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* @param string $craftLevel |
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* @param string $option |
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* @return ItemOption |
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* @throws InvalidCraftLevelException |
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* @throws InvalidOptionException |
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* @throws OptionLimitException |
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*/ |
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public function setCraftOption($craftLevel, $option) |
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{ |
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if (!in_array(strval($craftLevel), $this->_availableCraftLevels)) { |
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throw new InvalidCraftLevelException(); |
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} |
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if (!in_array(strval($option), $this->_availableOptions)) { |
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throw new InvalidOptionException(); |
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} |
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if (count($this->_craftOptions) == $this->_crafts) { |
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throw new OptionLimitException('Craft option cannot exceed ' . $this->_crafts); |
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} |
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$this->_craftOptions[] = [ |
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'craftLevel' => (string)$craftLevel, |
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'option' => (string)$option |
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]; |
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return $this; |
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} |
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/** |
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* Returns the generated item option based upon the criteria set |
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* |
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* @param string $format |
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* @return string|int |
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*/ |
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public function generate($format = self::OUTPUT_FORMAT_INTEGER) |
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{ |
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$optionString = ''; |
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$slotsToFillArray = []; |
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// Craft options should be at the end of the hex string hence we start prepending all craft options to output |
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foreach ($this->_craftOptions as $craftOption) { |
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$optionString = $craftOption['craftLevel'] . $craftOption['option'] . $optionString; |
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} |
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// We calculate slots to fill based upon slot options |
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foreach ($this->_slotOptions as $slotOption) { |
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if (isset($slotsToFillArray[$slotOption['option']])) { |
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// Item cannot have 4 set of same options |
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if ($slotsToFillArray[$slotOption['option']] == 3) { |
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continue; |
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} |
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$slotsToFillArray[$slotOption['option']]++; |
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} else { |
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$slotsToFillArray[$slotOption['option']] = 1; |
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} |
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} |
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// Sorting slots to fill array to make sure multiple slot options stay in the end |
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arsort($slotsToFillArray, SORT_NUMERIC); |
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// Build the output with slot options |
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foreach ($slotsToFillArray as $option => $fill) { |
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if (strlen($optionString) == 7) { |
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// Means we prematurely reached the end due to wrong options being set hence go out of the loop |
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break; |
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} |
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if (strlen($optionString) == 6) { |
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// Ignore slots to fill value |
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$optionString = $option . $optionString; |
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} else { |
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$optionString = $fill . $option . $optionString; |
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} |
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} |
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if (strlen($optionString) < 7) { |
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// Fill the output with 0s if there are empty slots |
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$optionString = str_repeat('0', 7 - strlen($optionString)) . $optionString; |
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} |
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if ($format != self::OUTPUT_FORMAT_INTEGER) { |
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return $this->_slots . $optionString; |
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} |
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return hexdec($this->_slots . $optionString); |
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} |
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/** |
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* Extracts item options details from generated item option |
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* |
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* @param int|string $generatedItemOption |
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* @return array |
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*/ |
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public static function extract($generatedItemOption) |
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{ |
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if (is_int($generatedItemOption)) { |
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$generatedItemOption = dechex($generatedItemOption); |
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} |
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if (strlen($generatedItemOption) < 8) { |
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$generatedItemOption = str_repeat('0', 8 - strlen($generatedItemOption)) . $generatedItemOption; |
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} |
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$generatedItemOption = strtoupper($generatedItemOption); |
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if (hexdec($generatedItemOption) > hexdec('4FFFFFFF')) { |
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// Invalid generated option hence return default values |
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return [ |
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'slots' => 0, |
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'crafts' => 0, |
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'slotOptions' => [], |
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'craftOptions' => [] |
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]; |
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} |
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$craftOptions = []; |
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$slotOptions = []; |
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// Extract last 3 options |
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for ($i = 1; $i <= 3; $i++) { |
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$currentOption = substr($generatedItemOption, -1 * ($i * 2), 2); |
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if (in_array($currentOption[0], ['9', 'A', 'B', 'C', 'D', 'E', 'F'])) { |
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$craftOptions[] = [ |
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'craftLevel' => $currentOption[0], |
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'craftOption' => $currentOption[1] |
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]; |
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} else { |
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for ($j = 1; $j <= (int)$currentOption[0]; $j++) { |
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if ($currentOption[1] == '0') { |
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continue; |
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} |
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$slotOptions[] = [ |
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'slotOption' => $currentOption[1] |
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]; |
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} |
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} |
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} |
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if ($generatedItemOption[1] != '0') { |
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$slotOptions[] = [ |
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'slotOption' => $generatedItemOption[1] |
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]; |
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} |
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return [ |
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'slots' => (int)$generatedItemOption[0], |
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'crafts' => count($craftOptions), |
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'slotOptions' => $slotOptions, |
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'craftOptions' => $craftOptions |
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]; |
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} |
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/** |
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* Removes a particular option from item option code |
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* |
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* @param string $inputOptionCode |
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* @param string $optionToRemove |
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* @param string $outputFormat |
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* @return string|int |
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* @throws InvalidCraftLevelException |
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* @throws InvalidOptionException |
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* @throws MaxOptionException |
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* @throws OptionLimitException |
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* @throws OptionNotFoundException |
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*/ |
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public static function removeSlotOption($inputOptionCode, $optionToRemove, $outputFormat = self::OUTPUT_FORMAT_INTEGER) |
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{ |
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// Extract input options |
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$extractedOptions = self::extract($inputOptionCode); |
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// Traverse through slot options to find option index |
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$filledSlotCount = count($extractedOptions['slotOptions']); |
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$optionIndex = null; |
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for ($i = 0; $i < $filledSlotCount; $i++) { |
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if ($extractedOptions['slotOptions'][$i]['slotOption'] == $optionToRemove) { |
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$optionIndex = $i; |
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break; |
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} |
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} |
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// If option index not found in the extracted options then throw exception |
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if ($optionIndex === null) { |
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throw new OptionNotFoundException(); |
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} |
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// Remove the option |
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unset($extractedOptions['slotOptions'][$optionIndex]); |
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// Return regenerated item option code |
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$generator = new self($extractedOptions['slots'], $extractedOptions['crafts']); |
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foreach ($extractedOptions['slotOptions'] as $slot) { |
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$generator->setSlotOption($slot['slotOption']); |
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} |
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foreach ($extractedOptions['craftOptions'] as $craft) { |
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$generator->setCraftOption($craft['craftLevel'], $craft['craftOption']); |
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} |
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return $generator->generate($outputFormat); |
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} |
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/** |
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* Removes all slot options from item option code |
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* |
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* @param $inputOptionCode |
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* @param string $outputFormat |
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* @return int|string |
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* @throws InvalidCraftLevelException |
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* @throws InvalidOptionException |
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* @throws MaxOptionException |
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* @throws OptionLimitException |
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*/ |
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public static function removeAllSlotOptions($inputOptionCode, $outputFormat = self::OUTPUT_FORMAT_INTEGER) |
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{ |
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// Extract input options |
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$extractedOptions = self::extract($inputOptionCode); |
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// Regenerate options and return |
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$generator = new self($extractedOptions['slots'], $extractedOptions['crafts']); |
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foreach ($extractedOptions['craftOptions'] as $craft) { |
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$generator->setCraftOption($craft['craftLevel'], $craft['craftOption']); |
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} |
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return $generator->generate($outputFormat); |
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} |
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} |