Tester Mod - Damage Testing Tool for Minecraft

Tester Mod provides configurable damage testing entities for Minecraft NeoForge 1.21.1, perfect for mod developers and players who want to analyze damage mechanics.

Key Features:

Advanced Damage Tracking: Spawn stationary tester entities that output detailed damage information in real-time, including raw damage, post-armor/resistance damage, and post-invulnerability damage.
Player Tester Mode: Players can now act as testers by right-clicking air with the Tester Setter to output damage they receive.
New Damage Output Format: [Entity Name] Damage: [Post-Mitigation Damage]/[Post-Invulnerability Damage]/[Raw Damage], Type: [Damage Type], Tick: [Game Tick]
Full Tester Configuration: Right-click a tester with the Tester Setter to open a GUI for configuring armor value, toughness, max health, knockback toggle, and whether to show zero-damage entries.
Player Tester Settings: Shift + right-click to configure invincibility toggle and zero-damage display.
Multi-Tester Support: Each tester displays its name prefix in damage output, allowing easy identification when testing with multiple entities.
Fire Resistance Integration: Testers with Fire Resistance effect automatically ignore fire-type damage.
Clean UI: Damage information appears as system messages, keeping the chat clean and focused.

How to Use:

Obtain the Tester Setter from the Tools creative tab or with /give @s tester_mod:tester_setter
Right-click a block to spawn a tester entity
Attack the tester to see damage output
Right-click the tester to open configuration GUI
Right-click air with the Tester Setter to enable Player Tester mode
Shift + Right-click air to configure Player Tester settings

Commands:

/removetester - Remove your testers
/removetester all - Remove all testers

Damage Output Format:

[Tester]: 2.0/2.5/8.0, Type: player, Tick: 54321

Perfect for:

Testing custom weapon damage
Debugging combat systems
Balancing modded content

Usage Notes:

Optimized for NeoForge 1.21.1
Open source with MIT license