> For the complete documentation index, see [llms.txt](https://docs.convai.com/api-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.convai.com/api-docs/zh/cha-jian-yu-ji-cheng/unity-plugin/adding-narrative-design-to-your-character/narrative-design-keys.md).

# Narrative Design 键

我们将创建一个简单场景，角色会欢迎玩家，并根据玩家当前的时间段询问他们晚上或早上过得怎么样。

### 步骤 1

在 Playground 中为你的角色启用 Narrative Design。然后，创建一个新的 Section。

### 步骤 2

在新 Section 的 Objective 部分，添加以下文本：

`当前时间段是 {TimeOfDay}。欢迎玩家，并询问他这个 {TimeOfDay} 过得怎么样。`

{% hint style="warning" %}
注意，放在大括号之间的任何字符串都会变成变量。在这里，我们将一天中的时间作为变量添加进来。在 Unity 中，我们可以传入“Morning”或“Evening”，角色就会做出相应回应。
{% endhint %}

<figure><img src="/files/cd8efb49026713da22a91f201e94edcae5582631" alt=""><figcaption></figcaption></figure>

### 步骤 3

现在，让我们回到 Unity 并进行必要的调整。点击你的 NPC。

点击 **Add Component** 按钮并添加 **Narrative Design Key Controller** 组件。

### 步骤 4

在 **名称** 字段中，输入 **TimeOfDay**。在 **值** 字段中，指定该变量对应的值，可以是 **上午**, **晚上**，或你选择的任何其他内容。

<figure><img src="/files/e4ef63eb46b449f45e39ebf9e4455d09acd6f11b" alt=""><figcaption></figcaption></figure>

就是这样！现在让我们来测试一下。 :tada::sunglasses:

<figure><img src="/files/025f9edc7399878d3e1bfdf721c6a300c5f5af28" alt=""><figcaption></figcaption></figure>


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