Uploaded May 2026 | Updated September 2026, 3 weeks ago

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Ever wanted to customize your World of Warcraft UI from scratch? In this tutorial, we build a "Tick Markers" addon using Lua and the Blizzard API, to display the ticks of channeled spells on the default cast bar.

In Part 1, we cover:
- Setting up your Addon folder, .toc files, and .lua files
- Lua basics: Variables, Functions, and Tables
- Blizzard API basics: Frames and Events
- How to anchor textures to the default Blizzard Cast Bar
- Positioning tick markers on the Cast Bar

Next video: youtu.be/6OnEeoOv_rU
Series Playlist: youtube.com/playlist?list=PLm7W8dbdflojQ7Gf87FtHxfczjp_KFUks
Discord: discord.gg/uV79UmjZ2Z

Chapters:
00:00 What we'll cover
00:57 How to make a new addon
02:11 TOC file format
04:26 Intro to Lua & Blizzard API
13:10 Intro to Blizzard Events
17:48 Positioning tick markers
24:26 Testing the addon

Song: Way Home
Composer: Tokyo Music Walker
Website: youtube.com/channel/UC3lLfvhpPGtwd5qD25cMDcA
License: Free To Use YouTube license youtube-free
Music powered by BreakingCopyright: breakingcopyright.com