mirrors/PocketMine-MP
1
0
Fork 0
mirror of https://github.com/pmmp/PocketMine-MP.git synced 2025-04-22 00:33:59 +00:00
Code Issues Projects Releases Wiki Activity

Level: Added getNearestEntity()

Browse Source 
This may be used for AI in the future.
This commit is contained in:
Dylan K. Taylor 2018-01-04 19:10:43 +00:00
parent debfbf0d93
commit f963dbd10d
1 changed files with 42 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

42
src/pocketmine/level/Level.php
View File

@ -2058,6 +2058,48 @@ class Level implements ChunkManager, Metadatable{
return $nearby;
}
/**
* Returns the closest Entity to the specified position, within the given radius.
*
* @param Vector3 $pos
* @param float $maxDistance
* @param string $entityType Class of entity to use for instanceof
* @param bool $includeDead Whether to include entitites which are dead
*
* @return Entity|null an entity of type $entityType, or null if not found
*/
public function getNearestEntity(Vector3 $pos, float $maxDistance, string $entityType = Entity::class, bool $includeDead = false) : ?Entity{
assert(is_a($entityType, Entity::class, true));
$minX = Math::floorFloat(($pos->x - $maxDistance) / 16);
$maxX = Math::ceilFloat(($pos->x + $maxDistance) / 16);
$minZ = Math::floorFloat(($pos->z - $maxDistance) / 16);
$maxZ = Math::ceilFloat(($pos->z + $maxDistance) / 16);
$currentTargetDistSq = $maxDistance ** 2;
/** @var Entity|null $currentTarget */
$currentTarget = null;
for($x = $minX; $x <= $maxX; ++$x){
for($z = $minZ; $z <= $maxZ; ++$z){
foreach($this->getChunkEntities($x, $z) as $entity){
if(!($entity instanceof $entityType) or $entity->isClosed() or $entity->isFlaggedForDespawn() or (!$includeDead and !$entity->isAlive())){
continue;
}
$distSq = $entity->distanceSquared($pos);
if($distSq < $currentTargetDistSq){
$currentTargetDistSq = $distSq;
$currentTarget = $entity;
}
}
}
}
return $currentTarget;
}
/**
* Returns a list of the Tile entities in this level
*