Class EntityRefCollisionProvider

java.lang.Object

com.hypixel.hytale.server.core.modules.collision.EntityRefCollisionProvider

public class EntityRefCollisionProvider
extends Object

A collision provider that computes collisions between an AABB and entities.

Constructor Summary

Constructors

Constructor	Description
EntityRefCollisionProvider()	Default Constructor for a EntityRefCollisionProvider instance.

Method Summary

Modifier and Type	Method	Description
void	clear()	Called to clear all stored contacts.
double	computeNearest(CommandBuffer<EntityStore> commandBuffer, Box entityBoundingBox, org.joml.Vector3d pos, org.joml.Vector3d dir, Ref<EntityStore> ignoreSelf, Ref<EntityStore> ignore)	Find nearest collision of AABB swept along a vector with another entity and store it in contact list.
double	computeNearest(CommandBuffer<EntityStore> commandBuffer, org.joml.Vector3d pos, org.joml.Vector3d dir, Box boundingBox, double radius, BiPredicate<Ref<EntityStore>, CommandBuffer<EntityStore>> entityFilter, Ref<EntityStore> ignoreSelf, Ref<EntityStore> ignoreOther)	Find nearest collision of AABB swept along a vector with another entity and store it in contact list.
static boolean	defaultEntityFilter(Ref<EntityStore> entity, CommandBuffer<EntityStore> commandBuffer)	Default entity filter to exclude projectiles, dead entities, and non-collidable entities.
EntityContactData	getContact(int i)	Called to fetch the contact data of a specific contact.
int	getCount()

Methods inherited from class Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

EntityRefCollisionProvider

public EntityRefCollisionProvider()

Default Constructor for a EntityRefCollisionProvider instance.

Method Details

getCount

public int getCount()

Returns:

number of contacts stored in the provider.

getContact

@Nonnull
public EntityContactData getContact(int i)

Called to fetch the contact data of a specific contact.

Parameters:

i - Index of contact to fetch.

Returns:

the contact data.

clear

public void clear()

Called to clear all stored contacts.

computeNearest

public double computeNearest(@Nonnull
 CommandBuffer<EntityStore> commandBuffer,
 @Nonnull
 Box entityBoundingBox,
 @Nonnull
 org.joml.Vector3d pos,
 @Nonnull
 org.joml.Vector3d dir,
 @Nullable
 Ref<EntityStore> ignoreSelf,
 @Nullable
 Ref<EntityStore> ignore)

Find nearest collision of AABB swept along a vector with another entity and store it in contact list.

Parameters:

commandBuffer - The CommandBuffer<EntityStore> for component access.

entityBoundingBox - AABB bounding box of the moving entity

pos - Initial position of AABB

dir - Movement ray of AABB

ignoreSelf - The entity reference of the instigating entity, or null to not ignore any entity.

ignore - The entity reference of the creator of the instigating entity, or null to not ignore any entity.

Returns:

relative distance of collision or negative value (-Double.MAX_VALUE) when no collision with entity found

computeNearest

public double computeNearest(@Nonnull
 CommandBuffer<EntityStore> commandBuffer,
 @Nonnull
 org.joml.Vector3d pos,
 @Nonnull
 org.joml.Vector3d dir,
 @Nonnull
 Box boundingBox,
 double radius,
 @Nonnull
 BiPredicate<Ref<EntityStore>, CommandBuffer<EntityStore>> entityFilter,
 @Nullable
 Ref<EntityStore> ignoreSelf,
 @Nullable
 Ref<EntityStore> ignoreOther)

Find nearest collision of AABB swept along a vector with another entity and store it in contact list.

Parameters:

commandBuffer - The CommandBuffer<EntityStore> for component access.

pos - Initial position of AABB

dir - Movement ray of AABB

boundingBox - AABB bounding box

radius - Search distance for entities

entityFilter - Predicate to accept or reject entities

ignoreSelf - Ref to ignore. Can be null. Intended to be used for excluding entity starting the search

ignoreOther - Ref to ignore. Can be null. Intended to be used for excluding creator of entity starting the search

Returns:

relative distance of collision or negative value (-Double.MAX_VALUE) when no collision with entity found

defaultEntityFilter

public static boolean defaultEntityFilter(@Nonnull
 Ref<EntityStore> entity,
 @Nonnull
 CommandBuffer<EntityStore> commandBuffer)

Default entity filter to exclude projectiles, dead entities, and non-collidable entities.

Parameters:

entity - The entity reference of the entity to filter.

commandBuffer - The CommandBuffer<EntityStore> for component access.

Returns:

true if the entity should be considered for collision, false otherwise.