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Browser-based visual editor for building WebGL, WebGPU, WebXR apps

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# PlayCanvas Editor

[![Status](https://img.shields.io/github/actions/workflow/status/playcanvas/editor/.github%2Fworkflows%2Ftest-suite-run.yml?label=test%20suite)](https://github.com/playcanvas/editor/actions/workflows/test-suite-run.yml)
[![Github Release](https://img.shields.io/github/v/release/playcanvas/editor)](https://github.com/playcanvas/editor/releases)
[![License](https://img.shields.io/github/license/playcanvas/editor)](https://github.com/playcanvas/editor/blob/main/LICENSE)
[![Discord](https://img.shields.io/badge/Discord-5865F2?style=flat&logo=discord&logoColor=white&color=black)](https://discord.gg/RSaMRzg)
[![Reddit](https://img.shields.io/badge/Reddit-FF4500?style=flat&logo=reddit&logoColor=white&color=black)](https://www.reddit.com/r/PlayCanvas)
[![X](https://img.shields.io/badge/X-000000?style=flat&logo=x&logoColor=white&color=black)](https://x.com/intent/follow?screen_name=playcanvas)

| [User Manual](https://developer.playcanvas.com/user-manual/editor) | [API Reference](https://api.playcanvas.com/editor) | [Blog](https://blog.playcanvas.com) | [Forum](https://forum.playcanvas.com) |

The PlayCanvas Editor is a visual editing environment for building WebGL/WebGPU/WebXR apps. It can be accessed at https://playcanvas.com.

![Editor](https://raw.githubusercontent.com/playcanvas/editor/refs/heads/main/images/editor.png)

You can see more projects built using the Editor on the [PlayCanvas website](https://playcanvas.com/explore).

> [!TIP]
> **AI-assisted development:** The Editor includes a built-in [Model Context Protocol (MCP) integration](https://github.com/playcanvas/editor-mcp-server), allowing AI assistants to inspect and modify projects directly through an open Editor session.

## Local Development

To initialize a local development environment for the Editor Frontend, ensure you have [Node.js](https://nodejs.org/) 18 or later installed. Follow these steps:

1. Clone the repository:

```sh
    git clone https://github.com/playcanvas/editor.git
    cd editor
    ```

2. Install dependencies:

```sh
    npm install
    ```

3. Build the Editor frontend and start a local web server:

```sh
    npm run develop
    ```

4. Open the Editor at [playcanvas.com](https://playcanvas.com) and append the query parameter `use_local_frontend` to load the development build:

```
    https://playcanvas.com/editor/scene/<YOUR_SCENE_ID>?use_local_frontend
    ```

This will load the Editor frontend from `http://localhost:3487` instead of the production build.

> [!NOTE]
> This query parameter is also supported in the code editor and launch page

## Library integration testing

The Editor is built on the following open source libraries:

| Library                                                   | Details                                     |
| --------------------------------------------------------- | ------------------------------------------- |
| [PlayCanvas Engine](https://github.com/playcanvas/engine) | Powers the Editor's 3D View and Launch Page |
| [Observer](https://github.com/playcanvas/observer)        | Data binding and history                    |
| [PCUI](https://github.com/playcanvas/pcui)                | Front-end component library                 |
| [PCUI-Graph](https://github.com/playcanvas/pcui-graph)    | PCUI plugin for rendering node-based graphs |

To test the integration of these libraries, use [npm link](https://docs.npmjs.com/cli/v9/commands/npm-link). Follow these steps:

1. Create a global link from source

```sh
    cd <library>
    npm link
    ```

2. Create a link to the global link

```sh
    cd editor
    npm link <library>
    ```

## Test Suite

The test suite for the PlayCanvas Editor uses [Playwright](https://playwright.dev/) for end-to-end testing.

![Playwright](https://raw.githubusercontent.com/playcanvas/editor/main/test-suite/images/playwright.png)

### Tests

Tests are split into two categories:

- `test-suite/test/api` - tests for the Editor API behavior
- `test-suite/test/ui` - tests for the Editor UI behavior

### Running Tests

To run the test suite ensure you have [Docker](https://www.docker.com/) installed. Follow these steps:

1. Create a `.env` file based on the [template](.env.template)

```env
    PC_HOST=playcanvas.com
    PC_LOGIN_HOST=login.playcanvas.com
    PC_LAUNCH_HOST=launch.playcanvas.com
    PC_LOCAL_FRONTEND=<true|false>
    PC_COOKIE_NAME=pc_auth
    PC_COOKIE_VALUE=<playcanvas-cookie>
    ```

> [!IMPORTANT]
> The account used must be an existing account. Create one [here](https://login.playcanvas.com)

2. Run the container with Docker compose

```sh
    docker compose up
    ```

3. Stop the container with Docker compose

```sh
    docker compose down --remove-orphans
    ```

> [!NOTE]
> To build the image from source instead of pulling from the registry append the `--build` flag

### Test Suite Local Development

To create new tests, ensure you have [Node.js](https://nodejs.org/) 18 or later installed. Follow these steps:

1. Install dependencies:

```sh
    cd test-suite
    npx playwright install --with-deps
    npm install
    ```

2. Create tests and put them into the respective folders. For dynamic recording of tests run this command:

```sh
    npm run codegen
    ```

> [!NOTE]
> Run `npm run` for the full list of npm scripts

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