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Physics: format code
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@capdevon
capdevon committed Nov 16, 2023
1 parent 621ab77 commit f032a5c
Showing 1 changed file with 69 additions and 56 deletions.
125 changes: 69 additions & 56 deletions game/src/main/java/com/capdevon/physx/Physics.java
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Original file line number Diff line number Diff line change
Expand Up @@ -29,7 +29,7 @@
* @author capdevon
*/
public class Physics {

private static final Logger logger = Logger.getLogger(Physics.class.getName());

/**
Expand All @@ -50,11 +50,12 @@ private Physics() {}
* Applies a force to a rigidbody that simulates explosion effects.
*
* @param rb
* @param explosionForce - The force of the explosion (which may be modified by distance).
* @param explosionPosition - The centre of the sphere within which the explosion has its effect.
* @param explosionRadius - The radius of the sphere within which the explosion has its effect.
* @param explosionForce The force of the explosion (which may be modified by distance).
* @param explosionPosition The centre of the sphere within which the explosion has its effect.
* @param explosionRadius The radius of the sphere within which the explosion has its effect.
*/
public static void addExplosionForce(PhysicsRigidBody rb, float explosionForce, Vector3f explosionPosition, float explosionRadius) {
public static void addExplosionForce(PhysicsRigidBody rb, float explosionForce, Vector3f explosionPosition,
float explosionRadius) {
Vector3f expCenter2Body = rb.getPhysicsLocation().subtract(explosionPosition);
float distance = expCenter2Body.length();
if (distance < explosionRadius) {
Expand All @@ -63,7 +64,7 @@ public static void addExplosionForce(PhysicsRigidBody rb, float explosionForce,
rb.setLinearVelocity(expCenter2Body.normalize().mult(strength));
}
}

/**
* Casts a ray through the scene and returns all hits.
*
Expand Down Expand Up @@ -99,30 +100,34 @@ public static List<RaycastHit> raycastAll(Vector3f origin, Vector3f direction, f
t.release();
return lstResults;
}

/**
* Casts a ray through the scene and returns all hits.
*/
public static List<RaycastHit> raycastAll(Vector3f origin, Vector3f direction, float maxDistance) {
return raycastAll(origin, direction, maxDistance, ALL_LAYERS);
}

/**
* Casts a ray, from point origin, in direction direction, of length
* maxDistance, against all colliders in the scene. You may optionally
* provide a LayerMask, to filter out any Colliders you aren't interested in
* generating collisions with.
* maxDistance, against all colliders in the scene. You may optionally provide a
* LayerMask, to filter out any Colliders you aren't interested in generating
* collisions with.
*
* @param origin - The starting point of the ray in world coordinates. (not null, unaffected)
* @param direction - The direction of the ray. (not null, unaffected)
* @param hitInfo - If true is returned, hitInfo will contain more information about where the closest collider was hit. (See Also: RaycastHit).
* @param maxDistance - The max distance the ray should check for collisions.
* @param layerMask - A Layer mask that is used to selectively ignore Colliders when casting a ray.
* @return Returns true if the ray intersects with a Collider, otherwise
* false.
* @param origin The starting point of the ray in world coordinates. (not
* null, unaffected)
* @param direction The direction of the ray. (not null, unaffected)
* @param hitInfo If true is returned, hitInfo will contain more
* information about where the closest collider was hit. (See
* Also: RaycastHit).
* @param maxDistance The max distance the ray should check for collisions.
* @param layerMask A Layer mask that is used to selectively ignore
* Colliders when casting a ray.
* @return Returns true if the ray intersects with a Collider, otherwise false.
*/
public static boolean raycast(Vector3f origin, Vector3f direction, RaycastHit hitInfo, float maxDistance, int layerMask) {

public static boolean raycast(Vector3f origin, Vector3f direction, RaycastHit hitInfo, float maxDistance,
int layerMask) {

hitInfo.clear();
boolean collision = false;

Expand Down Expand Up @@ -150,28 +155,31 @@ public static boolean raycast(Vector3f origin, Vector3f direction, RaycastHit hi
t.release();
return collision;
}

public static boolean raycast(Vector3f origin, Vector3f direction, RaycastHit hitInfo, float maxDistance) {
return raycast(origin, direction, hitInfo, maxDistance, ALL_LAYERS);
}

public static boolean raycast(Ray ray, RaycastHit hitInfo, float maxDistance, int layerMask) {
return raycast(ray.origin, ray.direction, hitInfo, maxDistance, layerMask);
}

public static boolean raycast(Ray ray, RaycastHit hitInfo, float maxDistance) {
return raycast(ray.origin, ray.direction, hitInfo, maxDistance, ALL_LAYERS);
}

/**
* Returns true if there is any collider intersecting the line between start and end.
* Returns true if there is any collider intersecting the line between start and
* end.
*
* @param beginVec - Start point (not null, unaffected).
* @param finalVec - End point (not null, unaffected).
* @param hitInfo - If true is returned, hitInfo will contain more information about where the closest collider was hit. (See Also: RaycastHit).
* @param layerMask - A Layer mask that is used to selectively ignore Colliders when casting a ray.
* @return Returns true if the ray intersects with a Collider, otherwise
* false.
* @param beginVec Start point (not null, unaffected).
* @param finalVec End point (not null, unaffected).
* @param hitInfo If true is returned, hitInfo will contain more information
* about where the closest collider was hit. (See Also:
* RaycastHit).
* @param layerMask A Layer mask that is used to selectively ignore Colliders
* when casting a ray.
* @return Returns true if the ray intersects with a Collider, otherwise false.
*/
public static boolean linecast(Vector3f beginVec, Vector3f finalVec, RaycastHit hitInfo, int layerMask) {

Expand All @@ -197,14 +205,15 @@ public static boolean linecast(Vector3f beginVec, Vector3f finalVec, RaycastHit

return collision;
}

/**
* Returns true if there is any collider intersecting the line between start and end.
* Returns true if there is any collider intersecting the line between start and
* end.
*/
public static boolean linecast(Vector3f beginVec, Vector3f finalVec, RaycastHit hitInfo) {
return linecast(beginVec, finalVec, hitInfo, ALL_LAYERS);
}

/**
* Casts the box along a ray and returns detailed information on what was hit.
* https://docs.unity3d.com/ScriptReference/Physics.BoxCast.html
Expand All @@ -219,16 +228,18 @@ public static boolean linecast(Vector3f beginVec, Vector3f finalVec, RaycastHit
* when casting a capsule.
* @return True, if any intersections were found.
*/
public static boolean boxCast(Vector3f center, Vector3f halfExtents, Vector3f direction, RaycastHit hitInfo, float maxDistance, int layerMask) {
public static boolean boxCast(Vector3f center, Vector3f halfExtents, Vector3f direction, RaycastHit hitInfo,
float maxDistance, int layerMask) {
BoxCollisionShape shape = new BoxCollisionShape(halfExtents);
return sweepTest(center, direction, shape, hitInfo, maxDistance, layerMask);
}

public static List<RaycastHit> boxCastAll(Vector3f center, Vector3f halfExtents, Vector3f direction, float maxDistance, int layerMask) {
public static List<RaycastHit> boxCastAll(Vector3f center, Vector3f halfExtents, Vector3f direction,
float maxDistance, int layerMask) {
BoxCollisionShape shape = new BoxCollisionShape(halfExtents);
return sweepTestAll(center, direction, shape, maxDistance, layerMask);
}

/**
* Casts a sphere along a ray and returns detailed information on what was hit.
* https://docs.unity3d.com/ScriptReference/Physics.SphereCast.html
Expand All @@ -243,17 +254,20 @@ public static List<RaycastHit> boxCastAll(Vector3f center, Vector3f halfExtents,
* when casting a capsule.
* @return True, if any intersections were found.
*/
public static boolean sphereCast(Vector3f center, float radius, Vector3f direction, RaycastHit hitInfo, float maxDistance, int layerMask) {
public static boolean sphereCast(Vector3f center, float radius, Vector3f direction, RaycastHit hitInfo,
float maxDistance, int layerMask) {
SphereCollisionShape shape = new SphereCollisionShape(radius);
return sweepTest(center, direction, shape, hitInfo, maxDistance, layerMask);
}

public static List<RaycastHit> sphereCastAll(Vector3f center, float radius, Vector3f direction, float maxDistance, int layerMask) {
public static List<RaycastHit> sphereCastAll(Vector3f center, float radius, Vector3f direction,
float maxDistance, int layerMask) {
SphereCollisionShape shape = new SphereCollisionShape(radius);
return sweepTestAll(center, direction, shape, maxDistance, layerMask);
}

private static boolean sweepTest(Vector3f center, Vector3f direction, ConvexShape shape, RaycastHit hitInfo, float maxDistance, int layerMask) {
private static boolean sweepTest(Vector3f center, Vector3f direction, ConvexShape shape, RaycastHit hitInfo,
float maxDistance, int layerMask) {

hitInfo.clear();
boolean collision = false;
Expand All @@ -273,7 +287,7 @@ private static boolean sweepTest(Vector3f center, Vector3f direction, ConvexShap
PhysicsCollisionObject pco = tr.getCollisionObject();

if (tr.getHitFraction() < hf && applyMask(layerMask, pco.getCollisionGroup())) {
hf = tr.getHitFraction();
hf = tr.getHitFraction();
hitInfo.set(beginVec, finalVec, tr);
collision = true;
}
Expand All @@ -282,8 +296,9 @@ private static boolean sweepTest(Vector3f center, Vector3f direction, ConvexShap
t.release();
return collision;
}

private static List<RaycastHit> sweepTestAll(Vector3f origin, Vector3f direction, ConvexShape shape, float maxDistance, int layerMask) {

private static List<RaycastHit> sweepTestAll(Vector3f origin, Vector3f direction, ConvexShape shape,
float maxDistance, int layerMask) {

List<RaycastHit> lstResults = new ArrayList<>();

Expand Down Expand Up @@ -311,21 +326,20 @@ private static List<RaycastHit> sweepTestAll(Vector3f origin, Vector3f direction
t.release();
return lstResults;
}

/**
* Computes and stores colliders inside the sphere.
* https://docs.unity3d.com/ScriptReference/Physics.OverlapSphere.html
*
* @param position Center of the sphere.
* @param radius Radius of the sphere.
* @param layerMask A Layer mask defines which layers of colliders to include in
* the query.
* @param layerMask A Layer mask defines which layers of colliders to include in the query.
* @return Returns all colliders that overlap with the given sphere.
*/
public static Set<PhysicsCollisionObject> overlapSphere(Vector3f position, float radius, int layerMask) {

Set<PhysicsCollisionObject> overlappingObjects = new HashSet<>(5);
PhysicsGhostObject ghost = new PhysicsGhostObject(new SphereCollisionShape(radius)); //MultiSphere
PhysicsGhostObject ghost = new PhysicsGhostObject(new SphereCollisionShape(radius)); // MultiSphere
ghost.setPhysicsLocation(position);

contactTest(ghost, overlappingObjects, layerMask);
Expand All @@ -335,16 +349,15 @@ public static Set<PhysicsCollisionObject> overlapSphere(Vector3f position, float
public static Set<PhysicsCollisionObject> overlapSphere(Vector3f position, float radius) {
return overlapSphere(position, radius, ALL_LAYERS);
}

/**
* Find all colliders touching or inside of the given box.
* https://docs.unity3d.com/ScriptReference/Physics.OverlapBox.html
*
* @param center Center of the box.
* @param halfExtents Half of the size of the box in each dimension.
* @param rotation Rotation of the box.
* @param layerMask A Layer mask that is used to selectively ignore colliders
* when casting a ray.
* @param layerMask A Layer mask that is used to selectively ignore colliders when casting a ray.
* @return Returns all colliders that overlap with the given box.
*/
public static Set<PhysicsCollisionObject> overlapBox(Vector3f center, Vector3f halfExtents, Quaternion rotation, int layerMask) {
Expand Down Expand Up @@ -386,15 +399,15 @@ private static int contactTest(PhysicsGhostObject ghost, final Set<PhysicsCollis
}
});

//logger.log(Level.INFO, "numContacts={0}", numContacts);
// logger.log(Level.INFO, "numContacts={0}", numContacts);
return numContacts;
}
//TODO: https://docs.unity3d.com/ScriptReference/Physics.OverlapBoxNonAlloc.html
//TODO: https://docs.unity3d.com/ScriptReference/Physics.OverlapSphereNonAlloc.html
//TODO: https://docs.unity3d.com/ScriptReference/Physics.BoxCastNonAlloc.html
//TODO: https://docs.unity3d.com/ScriptReference/Physics.SphereCastNonAlloc.html

// TODO: https://docs.unity3d.com/ScriptReference/Physics.OverlapBoxNonAlloc.html
// TODO: https://docs.unity3d.com/ScriptReference/Physics.OverlapSphereNonAlloc.html
// TODO: https://docs.unity3d.com/ScriptReference/Physics.BoxCastNonAlloc.html
// TODO: https://docs.unity3d.com/ScriptReference/Physics.SphereCastNonAlloc.html

/**
* Check if a collisionGroup is in a layerMask
*
Expand Down

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