Class GridBroadphase

Axis aligned uniform grid broadphase.

Todo

Needs support for more than just planes and spheres.

Hierarchy (view full)

Constructors

constructor

Properties

aabbMax aabbMin binLengths bins dirty nx ny nz useBoundingBoxes world

Methods

aabbQuery collisionPairs doBoundingBoxBroadphase doBoundingSphereBroadphase intersectionTest makePairsUnique needBroadphaseCollision setWorld boundingSphereCheck

Constructors

constructor

  • new GridBroadphase(aabbMin?, aabbMax?, nx?, ny?, nz?): GridBroadphase

  • Parameters

    • Optional aabbMin: Vec3
    • Optional aabbMax: Vec3
    • Optional nx: number

      Number of boxes along x.

    • Optional ny: number

      Number of boxes along y.

    • Optional nz: number

      Number of boxes along z.

    Returns GridBroadphase

Properties

aabbMax

aabbMax: Vec3

aabbMax

aabbMin

aabbMin: Vec3

aabbMin

binLengths

binLengths: number[]

binLengths

bins

bins: Body[][]

bins

dirty

dirty: boolean

Set to true if the objects in the world moved.

nx

nx: number

Number of boxes along x

ny

ny: number

Number of boxes along y

nz

nz: number

Number of boxes along z

useBoundingBoxes

useBoundingBoxes: boolean

If set to true, the broadphase uses bounding boxes for intersection tests, else it uses bounding spheres.

world

world: World

The world to search for collisions in.

Methods

aabbQuery

collisionPairs

  • collisionPairs(world, pairs1, pairs2): void

  • Get all the collision pairs in the physics world

    Parameters

    Returns void

doBoundingBoxBroadphase

doBoundingSphereBroadphase

  • doBoundingSphereBroadphase(bodyA, bodyB, pairs1, pairs2): void

  • Check if the bounding spheres of two bodies are intersecting.

    Parameters

    • bodyA: Body
    • bodyB: Body
    • pairs1: Body[]

      bodyA is appended to this array if intersection

    • pairs2: Body[]

      bodyB is appended to this array if intersection

    Returns void

intersectionTest

  • intersectionTest(bodyA, bodyB, pairs1, pairs2): void

  • Check if the bounding volumes of two bodies intersect.

    Parameters

    Returns void

makePairsUnique

  • makePairsUnique(pairs1, pairs2): void

  • Removes duplicate pairs from the pair arrays.

    Parameters

    Returns void

needBroadphaseCollision

setWorld

  • setWorld(world): void

  • To be implemented by subcasses

    Parameters

    Returns void

Static boundingSphereCheck

  • boundingSphereCheck(bodyA, bodyB): boolean

  • Check if the bounding spheres of two bodies overlap.

    Parameters

    Returns boolean

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