Class EntityCollisionProvider

java.lang.Object

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

public class EntityCollisionProvider
extends Object

Provides functionality to compute collisions between entities in the game world.

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method	Description
void	clear()	Called to clear the contact list.
double	computeNearest(Box entityBoundingBox, org.joml.Vector3d pos, org.joml.Vector3d dir, Ref<EntityStore> ignoreSelf, Ref<EntityStore> ignore, ComponentAccessor<EntityStore> componentAccessor)	Find nearest collision of AABB swept along a vector with another entity and store it in contact list.
double	computeNearest(org.joml.Vector3d pos, org.joml.Vector3d dir, Box boundingBox, double radius, BiPredicate<Ref<EntityStore>, ComponentAccessor<EntityStore>> entityFilter, Ref<EntityStore> ignoreSelf, Ref<EntityStore> ignoreOther, ComponentAccessor<EntityStore> componentAccessor)	Find nearest collision of AABB swept along a vector with another entity and store it in contact list.
static boolean	defaultEntityFilter(Ref<EntityStore> ref, ComponentAccessor<EntityStore> componentAccessor)	The default entity filter which filters out projectiles and dead entities.
EntityContactData	getContact(int index)	Called to fetch contact data at a given index.
int	getCount()

Methods inherited from class Object

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

Constructor Details

EntityCollisionProvider

public EntityCollisionProvider()

Default Constructor for a EntityCollisionProvider instance.

Method Details

getCount

public int getCount()

Returns:

the number of contacts detected.

getContact

@Nonnull
public EntityContactData getContact(int index)

Called to fetch contact data at a given index.

Parameters:

index - The index of the contact data to retrieve.

Returns:

the contact data at the specified index.

clear

public void clear()

Called to clear the contact list.

computeNearest

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

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

Parameters:

entityBoundingBox - AABB bounding box of the entity performing the collision check.

pos - Initial position of AABB.

dir - Movement ray of AABB.

ignoreSelf - The entity reference of the entity to ignore during collision checks, or null to not ignore any entity.

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

componentAccessor - The ComponentAccessor<EntityStore> for component access.

Returns:

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

computeNearest

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

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

Parameters:

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.

componentAccessor - The ComponentAccessor<EntityStore> for component access.

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> ref,
 @Nonnull
 ComponentAccessor<EntityStore> componentAccessor)

The default entity filter which filters out projectiles and dead entities.

Parameters:

ref - The entity reference to test.

componentAccessor - The ComponentAccessor<EntityStore> for component access.

Returns:

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