CurseForge · Minecraft mod
Progressive Mechanics Library
Library mod aimed to allow mod creators for deep control over damage mechanics.
Quick answer
Which Progressive Mechanics Library release should I use?
Progressive Mechanics Library pml-1.0.5b-all.jar targets 1.20.1 with Forge. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is Progressive Mechanics Library required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does Progressive Mechanics Library pml-1.0.5b-all.jar need?
pml-1.0.5b-all.jar. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add Progressive Mechanics Library without breaking your instance.
Built for Progressive Mechanics Library pml-1.0.5b-all.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use pml-1.0.5b-all.jar. It targets 1.20.1 with Forge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside pml-1.0.5b-all.jar. It opens that exact file at the source.
About this project
What does Progressive Mechanics Library add?
This is a library mod aimed to allow my mods and other mods have great control over damage and some combat mechanics
By default this mod does this
Modifies damage type done when landing a critical strike, allowing mods to easily track down if an attack is a critical hit. Damage type is "pml:player_critical"
Modifies damage type done when dealing a sweeping attack. Damage type is "pml:sweeping_damage".
For Mod developers
It adds a new way to register and add damage bonuses and reductions alongside making this work with First Aid Mod to allow control over damaged bodyparts
The DamageControl class is a core component. It provides a structured way to modify, control, and calculate damage values before they are applied in the game.
This system allows for multiple modifiers, including flat bonuses, percentage-based bonuses, and reductions from armor, enchantments, and special mechanics.
🔧 How It Works:
The system starts with raw base damage.
It applies weapon-specific scaling (reducing damage before further calculations).
Base bonuses are applied first (flat and percentage-based).
Additional bonuses are applied next (flat and percentage-based).
The system calculates reductions (armor, enchantments, special reductions).
The final damage is stored and can be retrieved or modified in LivingDamageEvent.
📊 Breakdown of Variables:
🛠️ Modifiers for Increasing Damage
| Variable | Description |
|---|---|
baseFlatBonus |
Flat bonus added before percentage multipliers (e.g., +10 damage). |
basePercentBonus |
Percentage-based increase applied before other calculations (e.g., 1.2 multiplier). |
flatBonus |
Flat bonus added after base bonuses (e.g., +5 damage). |
percentBonus |
Percentage-based increase applied after base calculations. |
🛡️ Modifiers for Reducing Damage
| Variable | Description |
|---|---|
weapondamagecontrol |
Controls weapon-based scaling before all calculations. |
armorReduction |
Damage reduced due to armor (handled separately). |
enchReduction |
Damage reduced due to enchantments (handled separately). |
specialReduction |
Directly reduces final damage, so it must be used carefully. |
📌 Original Values for Reference
| Variable | Description |
|---|---|
originalDamage |
Stores the final damage after all calculations, ready for LivingDamageEvent. |
originalAbsorption |
Stores the absorption value before modifications. |
🛠️ Key Methods
🛡️
getArmorReduction()``✅ Returns: The amount of damage reduction due to armor. 💡 Usage: This value is set by setArmorReduction(float value) and represents the amount of damage blocked by armor-based mechanics`` (e.g., vanilla armor calculations or custom armor effects from other mods).🔮 getEnchantmentReduction()✅ Returns: The amount of damage reduction caused by enchantments. 💡 Usage: This tracks how much defensive enchantments (such as Protection or custom enchantments) reduce the final damage. Mods can use this to balance enchantment effects or display them in tooltips.⚠️ getSpecialReduction()✅ Returns: The amount of direct damage reduction applied through special mechanics. 💡 Usage: This is the most powerful form of damage reduction, as it is subtracted at the very end of the damage calculation. Mods should use this carefully because it can completely negate damage if too high.📌 First Aid Mod Compatibility System
``
This system integrates with the First Aid mod, which modifies how damage is handled by introducing body-part-specific injuries. The following code helps track which body part was damaged when using the First Aid mod and ensures compatibility with the
DamageControlsystem.
Adds a new Event FirstAidHurtEvent, works as LivingHurtEvent but keeps track of equipmentslot pieces.
grants access to damage modification and the method
getDamagedSlot() returns the equipment slot damaged before armor and enchantments have been calculated when First Aid is added.
🛠️ Key Methods
🔍 getDamagedBodyPart(Player player)
✅ Purpose: Retrieves the body part that was damaged. Returns a EquipmentSlot var corresponding to the bodypart damaged.
💡 Usage:
This method should only be used during
LivingDamageEventand when First Aid is present.This mod also fixes issues related to SpartanWeaponry conflictive behaviour with many different mods including this one.
One example of use is inside the mod Forgotten Nunchakus.
Project description from CurseForge.
Pick your setup
Progressive Mechanics Library by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.20.2
1 loader build1.20.1
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Progressive Mechanics Library versions and loaders
pml-1.0.5b-all.jar
11 Sept 2026
pml-1.0.5a-all.jar
20 Aug 2026
pml-1.0.5-all.jar
20 Aug 2026
pml-1.0.4b-all.jar
9 Feb 2026
pml-1.0.3c-all.jar
23 Apr 2025
pml-1.0.3-all.jar
20 Apr 2025
pml-1.0.2-all.jar
10 Apr 2025
pml-1.0.1-all.jar
4 Apr 2025
pml-1.0.0.jar
3 Apr 2025
Looking for an older file? The official CurseForge project page is in Resources.