Quake 2 Freeze Tag - AI-Assisted Development Experiment

This repository documents an experiment in AI-assisted game development, where AmpCode - Sourcegraph's AI coding agent - was used to modernize and enhance a classic Quake 2 Freeze Tag mod. This blog post captures the initial efforts: Getting Friendly with AI: More Amp.

Project Overview

• q2_orig/: Original Quake 2 source code (76 files)
• freeze_orig/: Legacy Freeze Tag implementation (78+ files)
• freeze_new/: Modern AI-enhanced version with new features

What is Freeze Tag?

A 4-team multiplayer game mode where players freeze instead of dying. Teammates must thaw frozen players while avoiding being frozen themselves. The last team standing wins!

(Note: The core freeze tag gameplay exists in freeze_orig/ from the original implementation)

AI-Enhanced Features (So Far)

Working with AmpCode, we've begun adding modern enhancements to freeze_new/:

🎯 Start Weapon System ✅

• Configurable starting weapons for newly spawned players
• Bitwise flag system (start_weapon cvar: 1=shotgun, 2=super shotgun, 4=machinegun, etc.)
• Automatic ammo allocation
• Default loadout: shotgun + super shotgun + rocket launcher

🪝 Grappling Hook System ✅

• Physics-based hook projectile with collision detection
• Dynamic pull force based on chain length
• Variable chain length control (grow/shrink modes)
• Visual chain rendering
• Configurable parameters via CVars

👥 4-Team Auto-Assignment System ✅

• Automatic team balancing (Red, Blue, Green, Yellow)
• Players auto-assigned to team with fewest members on join
• Complete team damage prevention
• CTF skins for visual team identification
• Enhanced chat system with team indicators
• Team-only communication support
• Manual team switching via team command
• Public announcements for team joins/switches

🎮 Still To Be Implemented

• Port core freeze tag mechanics from freeze_orig/
• Freeze/thaw player mechanics
• Ready system and map voting

The AI Development Process

This project showcases what's possible when human creativity meets AI capability:

• Planning: AmpCode analyzed the original code and proposed comprehensive implementation plans
• Feature Development: From basic mechanics to complex grappling hook physics
• Code Quality: Maintained original Q2 architecture while adding modern features
• Documentation: Generated extensive inline documentation and configuration guides

AmpCode Stats

• 3 new systems implemented so far (start weapons, grappling hook & 4-team system)
• 6+ core files modified with AI assistance (freeze.h, freeze.c, g_local.h, p_client.c, g_combat.c, g_cmds.c)
• ~800+ lines of new code generated for weapons, hooks and team systems
• Full backward compatibility maintained with original Q2 architecture

Build Instructions

1. Open freeze_new/src/game.sln in Visual Studio
2. Build the solution
3. Launch with freeze.bat or freeze - dedicated server.bat
4. Configure via CVars and map-specific settings

Technical Notes

• Built for Windows with Visual Studio integration
• Complete multiplayer conversion (not just a mod)
• Extensive CVAR configuration system
• Compatible with original Q2 map formats

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This project demonstrates the potential of AI-assisted game development, where classic gameplay meets modern development practices. Built with AmpCode - Sourcegraph's AI coding agent.

This README.md was generated by AmpCode.