Lua Scripting

Half-Life: Alyx, like the previous Source 2 titles Dota 2 and SteamVR Home features the VScript scripting system using the  Lua programming language. It provides the ability to use Lua scripts natively when building custom levels using the Hammer editor. Scripts can be used for a variety of things including creating new game modes, weapons and other types of complicated logic.

Note:Unlike the previous games, only entity scripts are available, the systems for automatically loaded game mode and map scripts are not currently supported.

Note: As Half-Life: Alyx does not utilize the VScript system in the main game, the feature set is very limited. Access to many of the game systems is not available.

Introduction to Source 2 VScript

• Getting started with Lua for Half Life: Alyx
• Hello, Gordon: Introduction to Entity Script Integration With Hammer for Half-Life: Alyx
• Video Introduction to Setting Up Lua Scripts in Half-Life: Alyx
• Video Tutorial for Teleporting Entities using Lua Scripts in Half-Life: Alyx
• Video Tutorial for Creating Think Functions using Lua Scripts in Half-Life: Alyx
• Video Tutorial for Spawning Entities using Lua Scripts in Half-Life: Alyx
• Video Tutorial for Setting Barnacles to Drop Random Items using Lua Scripts in Half-Life: Alyx

Resources

• Scripting API
• Making API calls from Lua Scripts
• General VScript documentation
• Dota 2 VScript documentation
• SteamVR Home VScript documentation