Module technology.sola.engine

Package technology.sola.engine.physics.utils

Class CollisionUtils

java.lang.Object

technology.sola.engine.physics.utils.CollisionUtils

@NullMarked
public final class CollisionUtils
extends Object

The CollisionUtils class is a collection of various methods that help in collision detection and resolution.

Method Summary

Modifier and Type	Method	Description
static @Nullable MinimumTranslationVector	calculateAABBVsAABB(Rectangle rectangleA, Rectangle rectangleB)	Calculates a MinimumTranslationVector for a collision between two axis aligned Rectangles.
static @Nullable MinimumTranslationVector	calculateAABBVsCircle(Rectangle rectangle, Circle circle)	Calculates a MinimumTranslationVector for a collision between an axis aligned Rectangle and Circle.
static @Nullable MinimumTranslationVector	calculateCircleVsCircle(Circle circleA, Circle circleB)	Calculates a MinimumTranslationVector for a collision between two Circles.
static @Nullable CollisionManifold	calculateCollisionManifold(technology.sola.ecs.view.View2Entry<ColliderComponent,TransformComponent> viewEntryA, technology.sola.ecs.view.View2Entry<ColliderComponent,TransformComponent> viewEntryB)	Calculates a CollisionManifold for two Entity that collided.

Methods inherited from class java.lang.Object

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

Method Details

calculateCollisionManifold

public static @Nullable CollisionManifold calculateCollisionManifold(technology.sola.ecs.view.View2Entry<ColliderComponent,TransformComponent> viewEntryA,
 technology.sola.ecs.view.View2Entry<ColliderComponent,TransformComponent> viewEntryB)

Calculates a CollisionManifold for two Entity that collided.

Parameters:

viewEntryA - the first Entity in a View2Entry of ColliderComponent and TransformComponent

viewEntryB - the second Entity in a View2Entry of ColliderComponent and TransformComponent

Returns:

the resulting CollisionManifold

calculateAABBVsCircle

public static @Nullable MinimumTranslationVector calculateAABBVsCircle(Rectangle rectangle,
 Circle circle)

Calculates a MinimumTranslationVector for a collision between an axis aligned Rectangle and Circle.

Parameters:

rectangle - the rectangle

circle - the circle

Returns:

the MinimumTranslationVector if there is a collision or else null

calculateAABBVsAABB

public static @Nullable MinimumTranslationVector calculateAABBVsAABB(Rectangle rectangleA,
 Rectangle rectangleB)

Calculates a MinimumTranslationVector for a collision between two axis aligned Rectangles.
Note: This should not be used until penetration bug is fixed. Penetration and normal are incorrect when AABB are inside each other

Parameters:

rectangleA - the first rectangle

rectangleB - the second rectangle

Returns:

the MinimumTranslationVector if there is a collision or else null

calculateCircleVsCircle

public static @Nullable MinimumTranslationVector calculateCircleVsCircle(Circle circleA,
 Circle circleB)

Calculates a MinimumTranslationVector for a collision between two Circles.

Parameters:

circleA - the first circle

circleB - the second circle

Returns:

the MinimumTranslationVector if there is a collision or else null