---
title: "Vector Font: API"
package: "@phaser-ae/vector-font"
tier: Free
version: 3.0.0-2
released: 2026-10-14
updated: 2026-10-19
description: "Text as line art, a stroked display face whose glyphs are polylines, drawn, glowed and shattered like any other shape on a vector screen."
url: https://phaser.io/packs/vector-font/api
site: Phaser - https://phaser.io
---

# Vector Font: API

`@phaser-ae/vector-font` — Text as line art: a stroked display face whose glyphs are polylines, drawn, glowed and shattered like any other vector shape.

## The pack

### `vectorFont`

```ts
function vectorFont(): Pack<{ vecFont: VecFontApi }>
```

The `vector-font` pack. Pure maths, so it needs no backend and runs headless.

## Helpers

### `glyphOutline`

```ts
function glyphOutline(ch: string, glyphs?: VecGlyphs): Glyph
```

The strokes for one character, in the 0..1 em box. `glyphs` is looked at first, then the built-in face;
a lower-case letter neither has folds to upper case (the faces of the era were caps-only, and it halves
the table), so supplying lower-case glyphs gives a mixed-case face. An unknown character draws nothing but
still advances the pen.

### `textOutline`

```ts
function textOutline( str: string, x: number, y: number, opts: VecTextOptions = {}, ): Array<Array<{ x: number; y: number }>>
```

Lay a string out as POLYLINES in world space, the retained path: `(x, y)` is the anchor at the top of the
first line (the cap line; y grows down), `align` picks which end of each line sits on `x`, and `\n` starts
a new line `lineGap * size` lower.

Feed the result to `game.vector.shape()` (one shape per run, or `{ closed: false }` polylines) and the text
becomes a real shape that can fly, rotate, restyle and `shatter()`; `game.vector.text()` is the immediate
shortcut over the top of it, drawn once per frame.

### `textWidth`

```ts
function textWidth(str: string, opts: VecTextOptions = {}): number
```

Width in world units, for manual layout: of the widest line when the string holds `\n`. Counts code
points, as {@link textOutline} draws them, so an emoji or other astral character is one glyph wide, not two.

### `VECTOR_CHARSET`

```ts
const VECTOR_CHARSET: string
```

Every character the built-in face can draw (space included), one code point each.

## Types

### `Glyph`

```ts
type Glyph = readonly (readonly number[])[]
```

A glyph: polylines of flat `x, y, x, y…` coordinates in the 0..1 em box.

### `VecFontApi`

```ts
type VecFontApi = typeof kit
```

`game.vecFont` — every function this pack carries, as one namespace.

### `VecGlyphs`

```ts
type VecGlyphs = Readonly<Record<string, Glyph>>
```

Glyphs a game adds to the face, or puts in place of built-in ones, by character: an accented letter, a
currency sign, a lower-case alphabet, an icon. Each is a {@link Glyph} in the same 0..1 em box. Passed per
call (`glyphs` in {@link VecTextOptions}), so two games, or two faces in one game, never share a table.

### `VecTextAlign`

```ts
type VecTextAlign = 'left' | 'center' | 'right'
```

How a run of text sits against its anchor.

### `VecTextOptions`

```ts
interface VecTextOptions
```

Layout options for textOutline() and textWidth().

- `size?: number` — Cap height in world units (default 24). The em box is square, so a glyph is `size` wide too.
- `spacing?: number` — Gap between glyphs as a fraction of `size` (default 0.28).
- `lineGap?: number` — Baseline-to-baseline gap as a fraction of `size` (default 1.6). Only matters for text with `\n`.
- `align?: VecTextAlign` — Horizontal anchor (default 'left'). Each line of multi-line text is aligned on its own.
- `glyphs?: VecGlyphs` — Extra or replacement glyphs, by character, looked at before the built-in face. Default none.
- `advances?: Readonly<Record<string, number>>` — Advance widths as a fraction of `size`, by character, for a proportional face: `{ I: 0.4, ' ': 0.6 }`. A character not listed advances by 1 (the em box). Default none, which is the monospaced face.

---

## For AI agents: Phaser AE

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- **Phaser AE in the browser** (https://phaser.io/agent): the game's design, and a crew of bots that make its art, sprites, music, sound effects, logos, title screens, game UI, textures, shaders, 3D models and video, then build, test and publish the game. Every tool there is registered with Web MCP (`document.modelContext`, with `window.phaserDesk` for browsers without it), so an agent in the user's browser can call the tools directly once the user is signed in. Tools that make something spend the user's credits.
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Read any page of this site as Markdown by adding `.md` to its URL (the home page is https://phaser.io/index.md), or by asking for `text/markdown`. The index for agents is https://phaser.io/llms.txt. On the site's pages, the browser's Web MCP also offers `phaser_ae_guide`, `read_page_as_markdown` and `open_phaser_ae`.