Module technology.sola.engine

Package technology.sola.engine.physics.system.collision

Class SpatialHashMapCollisionDetectionBroadPhase

java.lang.Object

technology.sola.engine.physics.system.collision.SpatialHashMapCollisionDetectionBroadPhase

All Implemented Interfaces:

CollisionDetectionBroadPhase

@NullMarked
public class SpatialHashMapCollisionDetectionBroadPhase
extends Object
implements CollisionDetectionBroadPhase

SpatialHashMapCollisionDetectionBroadPhase is a CollisionDetectionBroadPhase implementation utilizing a SpatialHashMap internally.

Constructor Summary

Constructors

Constructor	Description
SpatialHashMapCollisionDetectionBroadPhase()	Creates an instance that allows the internal spatial hash map to determine a good cell size based on the entities.
SpatialHashMapCollisionDetectionBroadPhase(@Nullable Integer spatialHashMapCellSize)	Creates an instance with fixed cell size for the internal spatial hash map.

Method Summary

Modifier and Type	Method	Description
void	populate(Collection<technology.sola.ecs.view.View2Entry<ColliderComponent,TransformComponent>> views)	Populates the underlying data structure from the list of collidable entities.
Collection<technology.sola.ecs.view.View2Entry<ColliderComponent,TransformComponent>>	query(technology.sola.ecs.view.View2Entry<ColliderComponent,TransformComponent> searchEntry)	Searches for collidable entities that are near the search entity.
void	renderDebug(Renderer renderer, Matrix3D cameraScaleTransform, Matrix3D cameraTranslationTransform)	Renders debug information about this broad phase algorithm.

Methods inherited from class java.lang.Object

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

Constructor Details

SpatialHashMapCollisionDetectionBroadPhase

public SpatialHashMapCollisionDetectionBroadPhase()

Creates an instance that allows the internal spatial hash map to determine a good cell size based on the entities.

SpatialHashMapCollisionDetectionBroadPhase

public SpatialHashMapCollisionDetectionBroadPhase(@Nullable Integer spatialHashMapCellSize)

Creates an instance with fixed cell size for the internal spatial hash map.

Parameters:

spatialHashMapCellSize - the cell size for the spatial hash map

Method Details

populate

public void populate(Collection<technology.sola.ecs.view.View2Entry<ColliderComponent,TransformComponent>> views)

Description copied from interface: CollisionDetectionBroadPhase

Populates the underlying data structure from the list of collidable entities.

Specified by:

populate in interface CollisionDetectionBroadPhase

Parameters:

views - the list of collidable entities

query

public Collection<technology.sola.ecs.view.View2Entry<ColliderComponent,TransformComponent>> query(technology.sola.ecs.view.View2Entry<ColliderComponent,TransformComponent> searchEntry)

Description copied from interface: CollisionDetectionBroadPhase

Searches for collidable entities that are near the search entity.

Specified by:

query in interface CollisionDetectionBroadPhase

Parameters:

searchEntry - the entity to search for possible collisions for

Returns:

the list of nearby collidable entities

renderDebug

public void renderDebug(Renderer renderer,
 Matrix3D cameraScaleTransform,
 Matrix3D cameraTranslationTransform)

Description copied from interface: CollisionDetectionBroadPhase

Renders debug information about this broad phase algorithm.

Specified by:

renderDebug in interface CollisionDetectionBroadPhase

Parameters:

renderer - the Renderer

cameraScaleTransform - the camera's scale transform matrix

cameraTranslationTransform - the camera's translation transform matrix