Attributes
An attribute is what a skill actually buffs. Each skill points at one attribute, and every level applies a modifier to it whose size is incrementPerLevel × level, combined using the skill's operation.
Operations
The operation decides how a level bonus combines with the attribute's value. It matches Minecraft's own attribute modifier operations:
| Operation | Meaning | Example (incrementPerLevel 0.02, level 10) |
|---|---|---|
add_value | Flat amount added to the attribute | +0.2 to the raw value |
add_multiplied_base | Percentage of the attribute's base value | +20% of the base value |
add_multiplied_total | Percentage of the final value, after other modifiers | +20% of everything else combined |
incrementPerLevel may be negative if you want a skill to reduce an attribute.
Custom attributes
Vanilla Minecraft has no attribute for some effects, so Experience Skills adds its own, under the experienceskills namespace:
| Attribute | Effect | Default | Skill |
|---|---|---|---|
Lure Speed lure_speed | Added to your cast's Lure level, so fish bite sooner. Only whole points count. | 0 0–1,024 | Fishing Speed Experience Bottle |
Fishing Luck fishing_luck | Added to your cast's Luck of the Sea level for better loot. Only whole points count. | 0 0–1,024 | Fishing Luck Experience Bottle |
Swim Speed swim_speed | Multiplies how fast you move and rise while swimming. | 1 0–1,024 | Swim Speed Experience Bottle |
Mining Luck mining_luck | Extra items from every ore broken, rounded down: 0.2 per level is +1 drop every 5 levels. | 0 0–1,024 | Mining Luck Experience Bottle |
Pickaxe Mining Speed pickaxe_mining_speed | Multiplies mining speed while holding a pickaxe. | 1 0–1,024 | Pickaxe Breaking Speed Experience Bottle |
Shovel Mining Speed shovel_mining_speed | Multiplies mining speed while holding a shovel. | 1 0–1,024 | Shovel Breaking Speed Experience Bottle |
Axe Mining Speed axe_mining_speed | Multiplies mining speed while holding an axe. | 1 0–1,024 | Axe Breaking Speed Experience Bottle |
Hoe Mining Speed hoe_mining_speed | Multiplies mining speed while holding a hoe. | 1 0–1,024 | Hoe Breaking Speed Experience Bottle |
Floating Mining Speed floating_mining_speed | Eases the off-ground mining penalty. Vanilla divides mining speed by 5 while you are not on the ground; each point lowers that divisor by 1, so 4 removes it. | 0 0–4 | Floating Breaking Speed Experience Bottle |
These behave like any other attribute: the skill keeps a modifier on them in sync, and the mod implements what each one does. Other mods and commands such as /attribute can read and change them too.
Vanilla attributes used
The remaining built-in skills buff standard Minecraft attributes: Movement Speed, Attack Damage, Max Health, Jump Strength, Oxygen Bonus, Armor Toughness, Submerged Mining Speed, Block Interaction Range and Entity Interaction Range.
For developers
When you register a new custom attribute with ExperienceSkillsAPI.registerAttribute, Experience Skills adds it to players and keeps the skill's modifier on it in sync. You still have to implement whatever the attribute actually does. See Adding an attribute.