GroundZero Farmer v0.8.7 — Veterinary Update & Performance Improvements

This update introduces a complete animal vaccination system, improved zombie-virus balancing, major server optimizations, and several gameplay fixes!

🧪 New Animal Vaccination System

5 New Items:

• Sample Kit — Collect biological samples from infected farm animals.

• Sterile Syringe — Required for producing vaccines.

• Infected Sample — Obtained from infected livestock.

• Stabilized Antigen — A processed ingredient used in vaccine production.

• Animal Vaccine — Protects healthy animals against the zombie virus.

New Features:

• Complete five-stage vaccine production process.

• New crafting recipes for all craftable medical items.

• Produces 3 vaccine doses per batch.

• Farmer Level 25 required for sampling and vaccination.

• Vaccines provide 7 real-world days of protection.

• Vaccination protection persists through server restarts.

• 10-minute sampling cooldown per infected animal.

• Vaccines prevent infection but cannot cure already infected animals.

• Custom item textures and improved Syringe texture.

🦠 Animal Infection Rebalancing

• Animals no longer become infected almost immediately.

• Infection now requires approximately 90 seconds of exposure before an infection roll.

• Default transmission chance reduced to 30%.

• Newly infected animals have a 5-minute incubation period before becoming contagious.

• Animals cannot become infected through walls.

• Exposure gradually decreases when animals move away from infection sources.

• Bees are now completely immune to the zombie virus!

• Previously infected bees automatically have their infection data cleared.

• Infection settings can now be adjusted through the server configuration.

⚡ Major Server Performance Optimizations

• Reduced unnecessary animal infection checks.

• Animal checks are distributed across different server ticks to prevent performance spikes.

• Improved infected-animal pathfinding and particle handling.

• Combined overlapping crop contamination processing.

• Improved infected crop data management.

• Existing crop infection data is migrated without unnecessarily loading chunks.

• Field Harvester operations are now distributed across multiple ticks.

• Global harvesting workload is limited to reduce sudden TPS drops.

• Reduced unnecessary background processing.

🌾 Farming & Gameplay Improvements

• Improved Farmer progression with Veterinary unlocks.

• Updated Farmer's Journal with vaccination progression information.

• Improved crop infection and treatment handling.

• Better compatibility with existing farming data.

• Improved handling of contaminated crop drops.

• Existing food quality, farming contracts, and harvesting systems remain available.

🔧 Bug Fixes

• Fixed inconsistencies between existing crop infection systems.

• Improved compatibility with previously saved virus data.

• Fixed additional virus treatment inconsistencies.

• Fixed expired business contracts potentially losing their reserved diamond rewards.

• Added additional validation to farming interactions.

• Improved Farm Market purchase handling.

• Improved Crop Cure validation.

• Fixed the Sterile Syringe texture appearing too thin and visually incorrect.

🛠️ Compatibility

• Minecraft: 1.20.1

• Forge: 47.3.22

• Version: 0.8.7

• Multiplayer: Server performance improvements included.