Posts on s10nfault's Blog

Mermaid UML Guide

Sat, 11 Jul 2026 00:00:00 +0000

Tip

修改: This guide has been revised with richer Mermaid examples and a complete repost source link.

This page explains how to write Mermaid diagrams on this site. Example patterns are adapted from Runoob Mermaid tutorial and adjusted for this blog theme.

Note

Command Pattern

Mon, 06 Jul 2026 00:00:00 +0000

Building a bridge between inputs and actions to decouple them is the core feature of the Command Pattern.

1. The real life problem

When creating a player-controlled character, we always face the problem of how to bind user inputs to character actions.

At first glance, this might not even seem like a problem. We can easily handle it using simple if statements.

public class Hero {

 public Hero(Vector2d position) {
 _position = position;
 }

 private Vector2D _position = new(0 , 0);

 //Some properties...

 public void Move() {
 if (Input.GetKeyDown(KeyCode.W))
 _position += Vector2d.Up;
 if (Input.GetKeyDown(KeyCode.A))
 _position += Vector2d.Left;
 if (Input.GetKeyDown(KeyCode.D))
 _position += Vector2d.Right;
 if (Input.GetKeyDown(KeyCode.S))
 _position += Vector2d.Down;
 }

 //Some Methods...
}

However, as players, we are often annoyed by bad default keybindings in other games. Therefore, as developers, we must support custom key configurations.

Getting Started with Hugo

Sat, 27 Jun 2026 00:00:00 +0000

Hugo is one of the most popular open-source static site generators. With its amazing speed and flexibility, Hugo makes building websites fun again.

Installation

Installing Hugo is straightforward. On macOS, you can use Homebrew:

brew install hugo

On Windows, you can use Chocolatey:

choco install hugo-extended

Creating a New Site

Once Hugo is installed, creating a new site is simple:

hugo new site my-blog
cd my-blog

Adding Content

Create your first post:

hugo new posts/my-first-post.md

Running the Development Server

Start the development server with: