====== Artifact Buff ======

{{ rpd:images:stone_walking_buff.png|Artifact Buff }}

===== Description =====
**Artifact Buff** is a base class for artifact-related buffs in Remixed Dungeon. It extends the standard [[en:rpd:buff_mechanics|Buff]] class and adds specific behavior for artifact-sourced buffs.

===== Key Features =====
  * **Source Tracking:** Each ArtifactBuff tracks its source entity ID via `getSourceId()`
  * **Auto-Detach:** If the source ID is `EntityIdSource.INVALID_ID` (meaning non-artifact source), the buff automatically detaches
  * **Persistence:** Artifact buffs with valid source IDs don't get packed/saved with the game state (`dontPack()` returns `true`)
  * **Entity Kind:** Returns "artifactBuff" + parent entity kind for unique identification

===== Code Implementation =====
```java
public class ArtifactBuff extends Buff {

    @Override
    public boolean act() {
        if(getSourceId()==EntityIdSource.INVALID_ID) { // non-artifact source
            detach();
        }
        return super.act();
    }

    public String getEntityKind() {
        return "artifactBuff" + super.getEntityKind();
    }

    @Override
    public boolean dontPack() {
        return getSourceId()!= EntityIdSource.INVALID_ID;
    }
}
```

===== Known Subclasses =====
  * [[en:rpd:stone_walking_buff|Stone Walking Buff]] - Applied by [[en:rpd:ring_of_stone_blood_item|Ring of Stone Blood]]
  * Other artifact ring buffs (extend ArtifactBuff)

===== Code References =====
  * [[https://github.com/NYRDS/remixed-dungeon/blob/master/RemixedDungeon/src/main/java/com/watabou/pixeldungeon/items/rings/ArtifactBuff.java|ArtifactBuff.java]]
  * [[https://github.com/NYRDS/remixed-dungeon/blob/master/RemixedDungeon/src/main/java/com/watabou/pixeldungeon/actors/buffs/Buff.java|Buff.java]] (parent class)
  * [[https://github.com/NYRDS/remixed-dungeon/blob/master/RemixedDungeon/src/main/java/com/nyrds/pixeldungeon/utils/EntityIdSource.java|EntityIdSource.java]] (source ID tracking)

===== String Resources =====
Artifact buffs use the string resources of their specific implementations. See individual buff pages for string references.

===== Related Pages =====
  * [[en:rpd:buff_mechanics|Buff Mechanics]] - Base buff system
  * [[en:rpd:ring_of_stone_blood_item|Ring of Stone Blood]] - Example artifact ring
  * [[en:rpd:stone_walking_buff|Stone Walking Buff]] - Example artifact buff
  * [[en:rpd:doom_interface|Doom Interface]] - Interface for doom-type buffs

{{tag> rpd buffs artifact mechanics }}