Source Engine Diff Checker

This repository tracks the evolution of game movement code in the Source engine.
Additionally, a more comprehensive misc directory contains updates from the TF2 engine branch to the CS:GO engine branch.

Repository Structure

The repository is organized into several key directories:

collections/

Contains a collection of all files from across different SDK versions. This directory serves as a reference point for comparing files across all versions simultaneously.

hl2/

Contains the commit history showing the evolution of game movement code for Half-Life 2 across the following versions:

• Source SDK 2004
• Source SDK 2006
• Source SDK OrangeBox
• Source SDK 2013
• HL2 Source 2018 (TF2 branch)

csgo/

Contains the commit history showing the evolution of game movement code for Counter-Strike: Global Offensive across the following versions:

• Source SDK 2004
• Source SDK 2006
• Source SDK OrangeBox
• Source SDK 2013
• CSGO Source 2018

cstrike-vs-csgo/

Contains a specialized commit history that shows the evolution of game movement code from Counter-Strike: Source to Counter-Strike: Global Offensive:

1. Starts with HL2 Source 2018
2. Updates to CSGO Source 2018
3. Includes mod-specific overrides for Counter-Strike: Source and Counter-Strike: Global Offensive

misc/

Contains a specialized commit history that:

1. Starts with HL2 Source 2018
2. Updates to CSGO Source 2018
3. Contains complete structure, without overwriting cstrike with cstrike15 content

• This is primarily directories of interest to me for back-porting maps and other various curiosities.

fgd\

Contains a specialized commit history that:

1. Starts with CS:S FGD files.
2. Updates to CS:GO FGD files.

Usage

1. Browse the commit history in each directory to see step-by-step changes.
2. Use GitHub's compare feature to view differences between specific versions.