Changelog — Elite Mobs 2: The Sequel of Dante's Inferno

6.0.0 (this session, built on top of EliteMobs 5.1.1)

Architecture

• Decompiled the original mod (only .class files were provided, no sources) and set up a real, compilable Gradle/NeoForge 1.21.1 project.
• EliteMobManager (809 lines, did everything) was split into:
  • spawn/EliteSpawner — stateless elite creation/scaling/gear/naming.
  • bosses/LuciferEncounter — Lucifer's phases, mechanics and death sequence.
  • affixes/* — affix framework (previously a single enum + switch).
  • loot/EliteLootTable — rewards and kill message.
  • EliteMobManager — thin orchestrator (~230 lines): boss bars, loot context, dispatching the two tick loops.
• New stats/StatModifierSet: additive/multiplicative modifier stack with a documented application order, used throughout health/damage/speed scaling.

Affix system

• Converted from a closed enum to an open framework: an Affix interface with hooks (onSpawn, onTick, onDealDamage, onTakeDamage) + AffixRegistry + AffixState (generic, reusable cooldowns and one-shot flags).
• Adding a new affix no longer touches any existing file: one class in affixes/impl + one line in the registry.
• 3 new affixes with real behavior:
  • Regenerating — a one-time "second wind" (regeneration + resistance) the first time it drops below 50% health.
  • Shielded — periodically recharges an absorption shield.
  • Reflective — reflects 25% of melee damage taken back at the attacker (with a re-entrancy guard so two Reflective elites hitting each other can't loop forever).

Lucifer encounter

• Telegraphing added (didn't exist before — a fairness requirement of the design):
  • Meteors: mark their impact point with flame particles and a warning sound ~1s before landing.
  • Infernal nova: visibly charges with an expanding particle ring for 1.5s before detonating.
• Phase logic (75/50/25% health), block shredding, fire field and the death sequence were extracted into their own class, reusing EliteSpawner to summon the reinforcement berserkers.

Localization

• Fixed: almost every chat message, command output and the difficulty-menu GUI used hardcoded English text concatenated directly in Java, ignoring the lang/*.json keys that already existed (the elitemobs.ui.* keys were defined but never actually used).
• Everything now goes through Component.translatable(...) with variables — never string concatenation.
• ~45 new keys added to en_us.json and es_es.json: affixes, Lucifer phase messages, the 9 circle descriptions, command messages, UI tooltips. Natural Spain Spanish, not a literal translation.
• de_de/fr_fr were left as-is (original content); the new keys fall back to en_us where missing.

Integrations and bug fixes

• ApotheosisCompat was fully implemented but never called from anywhere — Lucifer's gear always fell back to plain netherite even with Apotheosis installed. Now actually wired in: if Apotheosis is loaded, Lucifer's gear is generated through its real mythic-rarity API.
• AnvilUpgradeListener: a redundant condition (< || <=, equivalent to just <=) let players "upgrade" an item with dust of its own current tier for no effect, wasting anvil levels. Fixed to require a strictly higher tier.
• Anvil-upgraded item names (EquipmentUpgrader) now use elitemobs.upgrade_tier.* instead of plain text.

Verification

• ./gradlew build green after every block of changes, not just at the end.
• Client launched via ./gradlew runClient: the mod loads with no errors or exceptions, the world generates and the player joins without issues.

5.1.1 (original baseline, unchanged this session)

NeoForge 1.21.1 mod with 9 difficulty circles, 5 elite tiers, 6 affixes, the Lucifer encounter (altar + phases), an anvil-based equipment upgrade system, a client-side difficulty menu, and en_us/es_es/de_de/fr_fr support.