---
title: "Voxel Editor: API"
package: "@phaser-ae/voxel-edit-3d"
tier: Free
version: 3.0.0-3
released: 2026-10-14
updated: 2026-10-19
description: "Point at a block and change it, with debounced raycast targeting, held-button cadence, multi-hit mining by hardness and a guard against placing a block inside yourself."
url: https://phaser.io/packs/voxel-edit-3d/api
site: Phaser - https://phaser.io
---

# Voxel Editor: API

`@phaser-ae/voxel-edit-3d` — Point at a block and change it: raycast targeting, held-button cadence, multi-hit mining, anti-embed guard.

## The pack

### `voxelEdit3d`

```ts
function voxelEdit3d(opts: VoxelEdit3dOptions = {}): Pack<{ voxelEdit: VoxelEdit3dApi }>
```

The `voxel-edit-3d` pack: targeting and editing for a voxel world. It emits events rather than effects, so
the game decides what a break or a place actually does.

## Helpers

### `cubeOutline`

```ts
function cubeOutline(): Array<Array<[number, number, number]>>
```

The twelve edges of a unit cube, as polylines — the target outline.

## Types

### `VoxelEdit3dApi`

```ts
interface VoxelEdit3dApi
```

`game.voxelEdit`.

- `update(dt: number, input: VoxelEditInput): VoxelEditResult` — One frame: aim, apply a held break or place, and report what happened.
- `block: number` — The block a place drops. Set it from a hotbar. Live.
- `reach: number` — Ray reach in blocks. Live.
- `hardness(fn: ((id: number) => number) | null): void` — Hits needed to break a block, by id. Return 1 for instant creative mining, which is the default.
- `forbid(fn: ((x: number, y: number, z: number) => boolean) | null): void` — Refuse to place into these cells — the player's own body, usually. The result reports it as blocked.
- `onHit(fn: ((e: VoxelHitEvent) => void) | null): void` — Called on each mining hit, with the progress toward breaking.
- `onBreak(fn: ((e: VoxelEditEvent) => void) | null): void` — Called when a block breaks — spawn the debris here.
- `onPlace(fn: ((e: VoxelEditEvent) => void) | null): void` — Called when a block is placed.
- `readonly target: VoxelHit | null` — The block currently aimed at, or null.
- `readonly placeCell: { x: number; y: number; z: number } | null` — The cell a place would fill, or null.
- `readonly blocked: boolean` — True when a place there is refused.

### `VoxelEdit3dOptions`

```ts
interface VoxelEdit3dOptions
```

Manifest options.

- `reach?: number` — How far the ray reaches, in blocks. Default 8, which is about creative reach.
- `block?: number` — The block a place drops. Default stone.
- `breakRate?: number` — Seconds between mining hits while the break button is held. Default 0.15.
- `placeRate?: number` — Seconds between placements while the place button is held. Default 0.2.
- `debounce?: number` — Frames a new target must hold before it commits. It de-twitches the outline at a block seam, where a single pixel of aim flips between two cells. Default 3; 0 is off.

### `VoxelEditEvent`

```ts
interface VoxelEditEvent
```

A block placed or broken. `id` is the block placed, or the one that was there.

- `x: number` — Cell x.
- `y: number` — Cell y.
- `z: number` — Cell z.
- `id: number` — The block placed, or the one that was there.

### `VoxelEditInput`

```ts
interface VoxelEditInput
```

Per-frame ray and button state.

- `origin: { x: number; y: number; z: number }` — The start of the ray, world units — usually the eye.
- `dir: { x: number; y: number; z: number }` — The ray direction; it is normalised for you.
- `mining?: boolean` — Break button held.
- `placing?: boolean` — Place button held.

### `VoxelEditResult`

```ts
interface VoxelEditResult
```

What the editor changed this frame; also delivered to the callbacks.

- `target: VoxelHit | null` — The committed target, or null when nothing is in reach.
- `placeCell: { x: number; y: number; z: number } | null` — The empty cell a place would fill — the target plus its face normal.
- `blocked: boolean` — True when placing there is refused by the guard.
- `hit: VoxelHitEvent | null` — The mining hit applied this frame.
- `broke: VoxelEditEvent | null` — The block broken this frame.
- `placed: VoxelEditEvent | null` — The block placed this frame.

### `VoxelHitEvent`

```ts
interface VoxelHitEvent extends VoxelEditEvent
```

One mining hit.

- `progress: number` — How far toward breaking, 0..1.

---

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