Box2

Axis-aligned bounding box defined by minimum and maximum corners.

Box2 represents a 2D region bounded by two corners: min and max. It is used for view rectangles, viewport regions, and intersection checks. A default-constructed box is empty and intersection treats boxes as half-open intervals.

Constructor

Creates a box from optional corner points. The corners are cloned. When a corner is omitted the box starts empty.

new Box2(min?, max?): Box2;

Parameter	Description
min?: vec2	The minimum corner.
max?: vec2	The maximum corner.

Properties

min

Minimum corner of the box.

min: vec2;

max

Maximum corner of the box.

max: vec2;

Methods

clone() Box2

Returns a deep copy of the box.

clone(): Box2;

isEmpty() boolean

Returns true when the box encloses no area.

isEmpty(): boolean;

intersects() boolean

Tests whether two boxes overlap. Boxes are treated as half-open intervals so touching edges do not count as overlap.

static intersects(a, b): boolean;

Parameter	Description
a: Box2	The first box.
b: Box2	The second box.

equals() boolean

Tests whether two boxes have exactly equal corners.

static equals(a, b): boolean;

Parameter	Description
a: Box2	The first box.
b: Box2	The second box.

floor() Box2

Returns a copy with both corners floored componentwise.

floor(): Box2;

toRect()

Converts the box to an x, y, width, height rectangle.

toRect(): {
  x: number;
  y: number;
  width: number;
  height: number;
};