import type { Circle2Like } from './circle2';
import type { Vec2, Vec2Like } from './types';
/** 2D AABB storage: [minX, minY, maxX, maxY]. */
export type Box2 = Float32Array & {
    readonly __box2: void;
};
/** Readable 2D AABB input. */
export type Box2Like = ArrayLike<number>;
/** Create a 2D AABB. The default is the inverted-infinity empty box. */
export declare function create(minX?: number, minY?: number, maxX?: number, maxY?: number): Box2;
/** Create an AABB from its center and non-negative half-size. */
export declare function fromCenter(out: Box2, center: Vec2Like, halfSize: Vec2Like): Box2;
/** Build the tightest AABB containing the given points. */
export declare function fromPoints(out: Box2, points: readonly Vec2Like[]): Box2;
/** Write the box center to out. Empty boxes produce non-finite values. */
export declare function center(out: Vec2, box: Box2Like): Vec2;
/** Write the box half-size to out. */
export declare function halfSize(out: Vec2, box: Box2Like): Vec2;
/** Write the closest point in the box to point. */
export declare function closestPoint(out: Vec2, box: Box2Like, point: Vec2Like): Vec2;
/** True when point is inside the box, including its boundary. */
export declare function containsPoint(box: Box2Like, point: Vec2Like): boolean;
/** True when the box completely contains other, including touching edges. */
export declare function containsBox(box: Box2Like, other: Box2Like): boolean;
/** True when two boxes overlap, including touching edges. */
export declare function intersectsBox(a: Box2Like, b: Box2Like): boolean;
/** True when a box and a circle overlap, including tangent contact. */
export declare function intersectsCircle(box: Box2Like, circle: Circle2Like): boolean;
/** Return the smallest box containing a and b. */
export declare function merge(out: Box2, a: Box2Like, b: Box2Like): Box2;
/** Grow the box by a non-negative amount on each side. */
export declare function grow(out: Box2, box: Box2Like, amount: Vec2Like): Box2;
/** Shrink the box by a non-negative amount on each side. */
export declare function shrink(out: Box2, box: Box2Like, amount: Vec2Like): Box2;
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