196 lines
9.1 KiB
PHP
196 lines
9.1 KiB
PHP
<?php
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namespace Aowow;
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if (!defined('AOWOW_REVISION'))
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die('illegal access');
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abstract class WorldPosition
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{
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private static array $zoneMapCache = [];
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private static array $alphaMapCache = [];
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private static array $capitalCities = array( // capitals take precedence over their surrounding area
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1497, 1637, 1638, 3487, // Undercity, Ogrimmar, Thunder Bluff, Silvermoon City
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1519, 1537, 1657, 3557, // Stormwind City, Ironforge, Darnassus, The Exodar
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3703, 4395 // Shattrath City, Dalaran
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);
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private static function alphaMapCheck(int $areaId, array &$set) : bool
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{
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$file = 'cache/alphaMaps/'.$areaId.'.png';
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if (!file_exists($file)) // file does not exist (probably instanced area)
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return false;
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// invalid and corner cases (literally)
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if (empty($set['posX']) || empty($set['posY']) || $set['posX'] >= 100 || $set['posY'] >= 100)
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{
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$set = null;
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return true;
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}
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if (empty(self::$alphaMapCache[$areaId]))
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self::$alphaMapCache[$areaId] = imagecreatefrompng($file);
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// alphaMaps are 1000 x 1000, adapt points [black => valid point]
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if (!imagecolorat(self::$alphaMapCache[$areaId], $set['posX'] * 10, $set['posY'] * 10))
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$set = null;
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return true;
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}
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public static function checkZonePos(array $points) : array
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{
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$result = [];
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foreach ($points as $res)
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{
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if (self::alphaMapCheck($res['areaId'], $res))
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{
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if (!$res)
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continue;
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// some rough measure how central the spawn is on the map (the lower the number, the better)
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// 0: perfect center; 1: touches a border
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$q = abs( (($res['posX'] - 50) / 50) * (($res['posY'] - 50) / 50) );
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if (empty($result) || $result[0] > $q)
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$result = [$q, $res];
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}
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// capitals (auto-discovered) and no hand-made alphaMap available
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else if (in_array($res['areaId'], self::$capitalCities))
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return $res;
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// add with lowest quality if alpha map is missing
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else if (empty($result))
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$result = [1.0, $res];
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}
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// spawn does not really match on a map, but we need at least one result
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if (!$result)
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{
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usort($points, fn($a, $b) => $a['dist'] <=> $b['dist']);
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$result = [1.0, $points[0]];
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}
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return $result[1];
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}
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public static function getForGUID(int $type, int ...$guids) : array
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{
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$result = [];
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switch ($type)
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{
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case Type::NPC:
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$result = DB::World()->selectAssoc('SELECT `guid` AS ARRAY_KEY, `id`, `map` AS `mapId`, `position_x` AS `posX`, `position_y` AS `posY` FROM creature WHERE `guid` IN %in', $guids);
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break;
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case Type::OBJECT:
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$result = DB::World()->selectAssoc('SELECT `guid` AS ARRAY_KEY, `id`, `map` AS `mapId`, `position_x` AS `posX`, `position_y` AS `posY` FROM gameobject WHERE `guid` IN %in', $guids);
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break;
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case Type::SOUND:
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$result = DB::AoWoW()->selectAssoc('SELECT `id` AS ARRAY_KEY, `soundId` AS `id`, `mapId`, `posX`, `posY` FROM ::soundemitters WHERE `id` IN %in', $guids);
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break;
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case Type::ZONE:
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$result = DB::Aowow()->selectAssoc('SELECT -`id` AS ARRAY_KEY, `id`, `parentMapId` AS `mapId`, `parentX` AS `posX`, `parentY` AS `posY` FROM ::zones WHERE -`id` IN %in', $guids);
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break;
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case Type::AREATRIGGER:
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$result = [];
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if ($base = array_filter($guids, fn($x) => $x > 0))
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$result = array_replace($result, DB::AoWoW()->selectAssoc('SELECT `id` AS ARRAY_KEY, `id`, `mapId`, `posX`, `posY` FROM ::areatrigger WHERE `id` IN %in', $base));
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if ($endpoints = array_filter($guids, fn($x) => $x < 0))
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$result = array_replace($result, DB::World()->selectAssoc(
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'SELECT -`ID` AS ARRAY_KEY, ID AS `id`, `target_map` AS `mapId`, `target_position_x` AS `posX`, `target_position_y` AS `posY` FROM areatrigger_teleport WHERE -`id` IN %in UNION
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SELECT -`entryorguid` AS ARRAY_KEY, entryorguid AS `id`, `action_param1` AS `mapId`, `target_x` AS `posX`, `target_y` AS `posY` FROM smart_scripts WHERE -`entryorguid` IN %in AND `source_type` = %i AND `action_type` = %i',
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$endpoints, $endpoints, SmartAI::SRC_TYPE_AREATRIGGER, SmartAction::ACTION_TELEPORT
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));
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break;
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default:
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trigger_error('WorldPosition::getForGUID - unsupported TYPE #'.$type, E_USER_WARNING);
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}
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if ($diff = array_diff($guids, array_keys($result)))
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trigger_error('WorldPosition::getForGUID - no spawn points for TYPE #'.$type.' GUIDS: '.implode(', ', $diff), E_USER_WARNING);
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return $result;
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}
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public static function toZonePos(int $mapId, float $mapX, float $mapY, int $preferedAreaId = 0, int $preferedFloor = -1) : array
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{
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if (!$mapId < 0)
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return [];
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if (!isset(self::$zoneMapCache[$mapId]))
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self::initZoneMaps($mapId);
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$points = [];
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for ($i = 0; $i < 2; $i++)
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{
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foreach (self::$zoneMapCache[$mapId] as $area)
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{
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if (!$i && $preferedAreaId != 0 && $area['areaId'] != $preferedAreaId)
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continue;
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if (!$i && $preferedFloor >= 0 && $area['floor'] != $preferedFloor)
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continue;
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if ($mapX < $area['minX'] || $mapX > $area['maxX'] ||
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$mapY < $area['minY'] || $mapY > $area['maxY'])
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continue;
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// dist BETWEEN 0 (center) AND 70.7 (corner)
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$posX = round(($area['maxY'] - $mapY) * 100 / ($area['maxY'] - $area['minY']), 1);
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$posY = round(($area['maxX'] - $mapX) * 100 / ($area['maxX'] - $area['minX']), 1);
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$dist = sqrt(pow(abs($posX - 50), 2) + pow(abs($posY - 50), 2));
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$points[] = array(
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'id' => $area['id'],
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'areaId' => $area['areaId'],
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'floor' => $area['floor'],
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'multifloor' => $area['multifloor'],
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'srcPrio' => $area['srcPrio'],
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'posX' => $posX,
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'posY' => $posY,
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'dist' => $dist
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);
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}
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// retry: pre-instance subareas belong to the instance-maps but are displayed on the outside. There also cases where the zone reaches outside it's own map.
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if ($points)
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break;
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}
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// sort by srcPrio DESC (primary), dist ASC (secondary)
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usort($points, fn($a, $b) => ($b['srcPrio'] <=> $a['srcPrio']) ?: ($a['dist'] <=> $b['dist']));
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return $points;
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}
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private static function initZoneMaps(int $mapId) : void
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{
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self::$zoneMapCache[$mapId] = DB::Aowow()->selectAssoc(
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'SELECT
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x.`id`,
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x.`areaId`,
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x.`minX`, x.`maxX`, x.`minY`, x.`maxY`,
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IF(x.`defaultDungeonMapId` < 0, x.`floor` + 1, x.`floor`) AS `floor`,
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IF(useDM.`id` IS NOT NULL OR x.`defaultDungeonMapId` < 0, 1, 0) AS `srcPrio`,
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IF(multiDM.`id` IS NOT NULL OR x.`defaultDungeonMapId` < 0, 1, 0) AS `multifloor`
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FROM
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(SELECT 0 AS `id`, `areaId`, `mapId`, `right` AS `minY`, `left` AS `maxY`, `top` AS `maxX`, `bottom` AS `minX`, 0 AS `floor`, 0 AS `worldMapAreaId`, `defaultDungeonMapId` FROM aowow_worldmaparea wma UNION
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SELECT dm.`id`, `areaId`, wma.`mapId`, `minY`, `maxY`, `maxX`, `minX`, `floor`, `worldMapAreaId`, `defaultDungeonMapId` FROM aowow_worldmaparea wma
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JOIN aowow_dungeonmap dm ON dm.`mapId` = wma.`mapId` WHERE wma.`mapId` NOT IN (0, 1, 530, 571) OR wma.`areaId` = 4395) x
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LEFT JOIN
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aowow_dungeonmap useDM ON useDM.`mapId` = x.`mapId` AND useDM.`worldMapAreaId` = x.`worldMapAreaId` AND useDM.`floor` = x.`floor` AND useDM.`worldMapAreaId` > 0
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LEFT JOIN
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aowow_dungeonmap multiDM ON multiDM.`mapId` = x.`mapId` AND multiDM.`worldMapAreaId` = x.`worldMapAreaId` AND multiDM.`floor` <> x.`floor` AND multiDM.`worldMapAreaId` > 0
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WHERE
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x.`mapId` = %i AND x.`areaId` <> 0 AND
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x.`minX` <> 0 AND x.`maxX` <> 0 AND x.`minY` <> 0 AND x.`maxY` <> 0
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GROUP BY
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x.`id`, x.`areaId`',
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$mapId
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) ?: [];
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}
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}
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?>
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