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aframe-super-shooter-kit

(★ 132)

🔫 A-Frame kit of components for making a simple WebVR shooter minigame.

파일 탐색기

최종 버전 다운로드 (.zip)

- aframe-super-shooter-kit.js
- aframe-super-shooter-kit.min.js
- - index.html
- - index.html
.gitignore
.travis.yml
index.html
index.js
LICENSE
package-lock.json
package.json
README.md

# 설치 가이드

1. 코드 내려받기

git clone https://github.com/supermedium/aframe-super-shooter-kit

깃허브에서 프로젝트 코드 전체를 내 컴퓨터로 내려받습니다.

cd aframe-super-shooter-kit

방금 내려받은 프로젝트 폴더 안으로 이동합니다.

2. Node.js

쉬움 추천

사전 준비물

Git GitHub에서 프로젝트 코드를 내려받으려면 필요합니다.
Node.js npm 명령어를 쓰려면 Node.js가 설치되어 있어야 합니다. LTS(장기지원) 버전을 추천합니다.

npm install aframe-super-shooter-kit

package.json에 명시된 라이브러리들을 내려받아 설치합니다.

✅ 명령어 실행 후 터미널에 나타나는 주소(보통 http://localhost:3000 형태)를 브라우저에서 열어보세요.

이 레포의 README에 적힌 실제 명령어를 그대로 가져왔습니다.

// repository documentation

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# aframe-super-shooter-kit

[A-Frame](https://aframe.io) kit of components for making a simple WebVR
shooter minigame. From the creators of A-Frame, Supermedium, and Supercraft.

![screenshot](https://user-images.githubusercontent.com/674727/43233052-499cf788-9074-11e8-98bb-3823e30ef13d.jpg)

**[PLAY](https://supermedium.github.io/aframe-super-shooter-kit/examples/supercraft/)**

The kit is set of simple and easy to use components to provide a way of
building simple shooting experiences, where a "shooter" shoots "bullets" that
can hit "targets". A large chunk of the game can be handled at just the
declarative A-Frame layer in HTML.

1. One `bullet` entity acts as a template for the instances of shot bullets.
2. Entity with `shooter` component attached (e.g., a gun) spawns bullets on
`shoot` event from its position.
3. Collisions among bullet's and `target`'s bounding boxes are checked.
4. Health and life of targets are calculated (`hit` and `die` events).

So we define which entities are bullets, shooters, and targets, and then wire
up the game using controls and progress the game with events.

![diagram](https://user-images.githubusercontent.com/674727/43211842-cb6de9da-9032-11e8-94ff-8c4b6b8ac176.png)

[Video of Supercraft + Super Shooter Kit workflow](https://www.youtube.com/watch?v=RW3enib2X94)

## API

### `shooter` component

The `shooter` component should be attached to a controller for gun. But it can
also be attached to the camera to support 2D / desktop or normal smartphone if
wired to mouse or touch.

| Property         | Description                                                                                                                                          | Default Value |
| --------         | -----------                                                                                                                                          | ------------- |
| activeBulletType | Name of current active bullet the shooter is firing.                                                                                                 | 'normal'      |
| bulletTypes      | Array of possible bullet names.                                                                                                                      | ['normal']    |
| cycle            | A flag to tell when swapping to the `next` or `prev` bullet type, cycle to the first or last type when reaching the last or first type respectively. | false         |

#### Events

These events can be triggered with `entity.emit(eventName)`.

| Event Name     | Effect                                                      |
|----------------|-------------------------------------------------------------|
| shoot        | Shoot a bullet.                                             |
| changebullet | Swap bullet type (either `prev`, `next`, or name of bullet. |

### `bullet` component

| Property     | Description                                                               | Default Value |
|--------------|---------------------------------------------------------------------------|---------------|
| damagePoints | How many health points to remove from target when hitting target.         | 1.0           |
| maxTime      | Life time of bullet in seconds. When elapsed, the bullet will be removed. | 1.0           |
| name         | Name of the bullet type.                                                  | normal        |
| poolSize     | How many copies of this bullet can be on screen at once.                  | 10            |
| speed        | Speed of bullet in meters per second.                                     | 1.0           |

### `target` component

| Property     | Description                                                                                                                                                                                                                          | Default Value |
|--------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------|
| active       | Whether this target is included in collision tests.                                                                                                                                                                                  | true          |
| healthPoints | Number of hit or health points of the target. When a bullet hits this target, its health points will decrease by the bullet's damage points. When the target reaches 0 health points, then the event 'die' is emitted on the target. | 1             |
| static       | Whether this object does not ever move or change shape. If set to false, then the bounding box is recalculated continuously.                                                                                                         | true          |

#### Members

Component members can be accessed by like `entity.components.target.lastBulletHit`:

| Member        | Description                                                                                                                                   |
|---------------|-----------------------------------------------------------------------------------------------------------------------------------------------|
| lastBulletHit | Reference object to the last bullet object3D that hit the target. Useful for attaining the position of where the bullet contacted the target. |

#### Events

Events emitted on the target that we can listen to, to perhaps show an
explosion effect on target hit or die.

| Event Name | Description                                            |
|------------|--------------------------------------------------------|
| hit        | Target was hit by a bullet.                            |
| die        | Target ran out of healthPoints and has been destroyed. |

## With Supercraft Assets

[Supercraft](https://supermedium.com/supercraft) is an A-Frame WebVR
application that lets you build low-poly VR assets inside of VR with your
hands, and export them to Web or JSON! With the shooter kit providing dead-easy
components, A-Frame letting you do things in just HTML, and ability to create
good assets without modeling experience, WebVR development is made simple.

The advantage of the Supercraft JSON exports alongside
[aframe-supercraft-loader](https://www.npmjs.com/package/aframe-supercraft-loader)
and [aframe-supercraft-thing](https://www.npmjs.com/package/aframe-supercraft-thing)
is that they are tailored for A-Frame resulting in extremely small file sizes
and performant through geometry merging.

All 3D assets in this scene are delivered within a single 190KB JSON file:
[Supercraft Shooter](https://supermedium.github.io/supercraft-shooter). All
the assets in the game were done using Supercraft in **45 minutes**, and the
code is just dozens of lines of Javascript and HTML. Game created in an
afternoon.

An extremely cool workflow is using the `supercraft-loader` to "live-reload"
assets.  The Supercraft JSON is hosted on the Web via name; we just need to do
`supercraft-loader="name: my-supercraft-site"`, and whenever we publish an update
to `my-supercraft-site` within Supercraft, the scene will automatically have
access to the fresh new assets.

And `supercraft-thing-loader` can be used to pick individual objects out of a
Supercraft scene of objects. You can create all your assets in one scene, make
sure they have good scale relative to one another, tweak them all at once!

**[VIDEO](https://www.youtube.com/watch?v=RW3enib2X94)**

## Installation

### Browser

See the [Supercraft Shooter example source
code](https://github.com/supermedium/aframe-super-shooter-kit/tree/master/examples/supercraft).

Install and use by directly including the [browser files](dist):

```html
<head>
  <title>A-Frame Super Shooter Kit - Basic</title>
  <script src="https://aframe.io/releases/0.8.2/aframe.min.js"></script>
  <script src="../../dist/aframe-super-shooter-kit.min.js"></script>
  <script>
    /**
     * Click mouse to shoot.
     */
    AFRAME.registerComponent('click-to-shoot', {
      init: function () {
        document.body.addEventListener('mousedown', () => { this.el.emit('shoot'); });
      }
    });

/**
     * Change color when hit.
     */
    AFRAME.registerComponent('hit-handler', {
      dependencies: ['material'],

init: function () {
        var color;
        var el = this.el;

color = new THREE.Color();
        color.set('#666');
        el.components.material.material.color.copy(color);
        el.addEventListener('hit', () => {
          color.addScalar(0.05);
          el.components.material.material.color.copy(color);
        });

el.addEventListener('die', () => {
          color.setRGB(1, 0, 0);
          el.components.material.material.color.copy(color);
        });
      }
    });
  </script>
</head>

<body>
  <a-scene background="color: #DADADA">
    <a-entity id="bulletTemplate" bullet geometry="primitive: sphere; radius: 0.1" material="color: orange"></a-entity>

<a-entity class="target" target="healthPoints: 10" geometry="primitive: box" material="color: teal" position="0 0 -4" hit-handler></a-entity>

<a-entity id="gun" shooter geometry="primitive: box; width: 0.1; height: 0.1; depth: 0.3" material="color: red" click-to-shoot position="0 0 -1"></a-entity>

<a-camera id="camera" position="-1 0 0" shooter click-to-shoot></a-camera>
  </a-scene>
</body>
```

### npm

Install via npm:

```bash
npm install aframe-super-shooter-kit
```

Then require and use.

```js
require('aframe');
require('aframe-super-shooter-kit');
```