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    Class Sphere

    A 3D sphere — { centre, radius }. Sibling of Ellipse in the geometry surface; used by Octree / adapter.querySphere as the canonical 3D region-query shape, and by user code for any sphere-vs-sphere / sphere-vs-AABB collision check under Camera3d.

    Not currently part of the BodyShape union — Body is 2D- only in melonJS today; Sphere is a math/geometry primitive that would slot in once a 3D physics adapter ships.

    import { Sphere } from "melonjs";

    const a = new Sphere(0, 0, 0, 10);
    const b = new Sphere(15, 0, 0, 10);
    a.overlaps(b); // true — surfaces touch at x = 5
    Index

    Constructors

    constructor

    Properties

    pos radius

    Methods

    clear clone contains getBounds overlaps overlapsAABB setShape

    Constructors

    Properties

    pos: Vector3d

    Centre coordinates of the sphere (Y-down, +Z forward — Camera3d convention).

    radius: number

    Sphere radius. Negative values are treated like their absolute value in Sphere.overlaps / Sphere.contains.

    Methods

    • Smallest AABB3d containing this sphere. Cached — repeat calls without a setShape between return the same instance and the same values.

      Returns AABB3d

    • Test whether this sphere overlaps an axis-aligned box. Delegates to AABB3d.overlapsSphere so the two shapes agree on boundary semantics.

      Parameters

      • aabb: AABB3d

        the box

      Returns boolean

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