Bounds | ExoJS API

C

classBounds

@codexo/exojs / math / stable

Mutable axis-aligned bounding box accumulator. Starts as the empty bounds (`-Infinity..Infinity` reversed) and grows monotonically as points or rectangles are merged in via Bounds.addCoords and Bounds.addRect. Used during scene-graph traversal to accumulate a subtree's combined extent for culling and hit-testing. The Bounds.getRect accessor lazily folds the current min/max into a shared Rectangle - copy the result if you need to retain it across further accumulation.

4

props

5

methods

0

events

Import

import { Bounds } from '@codexo/exojs'

Mutable axis-aligned bounding box accumulator. Starts as the empty bounds (`-Infinity..Infinity` reversed) and grows monotonically as points or rectangles are merged in via Bounds.addCoords and Bounds.addRect. Used during scene-graph traversal to accumulate a subtree's combined extent for culling and hit-testing.

The Bounds.getRect accessor lazily folds the current min/max into a shared Rectangle - copy the result if you need to retain it across further accumulation.

Constructors1

new(): Bounds

Methods5

addCoords(x: number, y: number): this

Expand the bounds to include (x, y).

addRect(rectangle: ReadonlyRectangleRead-only view of a Rectangle: every accessor and non-mutating query a rectangle offers, with none of its writers. Returned by APIs that hand out a LIVE intern…, transform?: MatrixMutable 3×3 row-major affine transformation matrix used throughout the rendering and physics pipeline. Layout (row, column): ``` | a b x | | c d y | | e f z |…): this

Expand the bounds to include rectangle. When transform is provided the rectangle's corners are transformed into the bounds' coordinate space first (via Rectangle.temp - does not mutate rectangle).

destroy(): void

getRect(): RectangleMutable axis-aligned rectangle defined by a top-left origin `(x, y)` and dimensions `(width, height)`. Implements Collidable with full SAT collision response f…

Materialize the accumulated min/max as a Rectangle. Returns the same instance across calls - copy if you need to retain it past the next mutation.

reset(): this

Restore the empty-bounds state for reuse across frames.

Properties4

maxX: number

maxY: number

minX: number

minY: number

Source

src/math/Bounds.ts

API reference