Changelog (completo – Spigot-ready)
✅ CORE / SISTEMA

Unificazione comandi: sostituiti i vecchi comandi separati con una classe unica AcCommand che gestisce i sottocomandi (es. /ac stats <player>, /ac gui, ecc.).

Logging centralizzato: integrato LogManager in listener/check per registrare eventi in modo uniforme.

Anti-spam alert: implementato un sistema centralizzato di cooldown (AlertCooldownManager) per prevenire flood di alert ripetuti in rapida sequenza.

Supporto ProtocolLib (quando disponibile): alcuni check usano pacchetti per una lettura più precisa; fallback su eventi Bukkit quando ProtocolLib non è presente.

✅ CHECKS (modificati con successo)
✅ Speed (rework)

Modello di rilevazione basato su distanza orizzontale per finestra di tick (più stabile di “blocchi/secondo”).

Tick counter server-side per calcoli coerenti.

Sistema Violation Level (VL) con accumulo prudente + decay per ridurre FP.

Grace windows anti-FP per:

Teleport / Respawn / Cambio mondo (reset + grace)

Velocity/knockback (grace dinamica in base alla spinta)

Danni (buffer per esplosioni/colpi)

Considerate molte condizioni legit (sprint/sneak, pozioni speed/slowness, superfici: ice/slime/honey/soul sand/soil + soul speed/cobweb/berries/powder snow, buffer salto, buffer verticale).

Alert più chiari: Distance vs AllowedDistance con dettagli opzionali.

✅ FastBreak (hardening + timing più affidabile)

Timing reso più “server authoritative”:

START da ProtocolLib START_DESTROY_BLOCK (o fallback BlockDamageEvent)

END su BlockBreakEvent (server certo)

STOP packet non usato per misurare (troppo rumoroso)

Riduzione FP con filtri robusti:

Ignora blocchi “instant/soft” sotto min_hardness

Ignora sample ambigui (dtTicks <= 0)

Ignora lag eccessivo (max_dt_ticks)

START/BREAK devono corrispondere allo stesso blocco (BlockKey)

Cleanup start “appesi” (start_expire_ticks)

Expected time migliorato (più vanilla-like e combinabile):

Efficiency, Haste, Mining Fatigue

Penalità underwater senza Aqua Affinity

Penalità airborne (!onGround)

Harvestability basata su drops reali (block.getDrops(tool)), più corretta di euristiche

⚠️ CHECKS “IN REVISIONE” (toccati ma non ancora chiusi)
⚠️ Jesus

Aggiunte molte protezioni anti-falsi positivi (edge detection, corner sampling hitbox, grace dopo fluid/teleport, esclusione veicoli/superfici legit).

Problema attuale: con le protezioni attuali non produce detect affidabili (troppo conservativo) → richiede ulteriore tuning per mantenere “zero FP” ma rilevare realmente il cheat.

⚠️ Speed (rifiniture richieste)

Problemi segnalati:

detect non sempre immediato

possibile “detect di coda” subito dopo lo stop del cheat

gestione liquidi migliorabile (non indispensabile, ma utile)

⚠️ FastBreak (edge cases)

Problemi segnalati: restano alcuni falsi positivi su casistiche specifiche → serve ulteriore affinamento del calcolo expected / condizioni ambientali.

Changelog (complete – Spigot-ready)
✅ CORE / SYSTEM

Command unification: replaced separate command classes with a single AcCommand handling subcommands (e.g. /ac stats <player>, /ac gui, etc.).

Centralized logging: integrated LogManager across listeners/checks for consistent logging.

Anti-alert spam: implemented a centralized cooldown system (AlertCooldownManager) to prevent rapid alert flooding.

ProtocolLib support (when available): some checks leverage packet-level data for higher precision, with Bukkit-event fallback when ProtocolLib is missing.

✅ CHECKS (successfully updated)
✅ Speed (full rework)

Detection model rebuilt using horizontal distance per tick window (more stable than raw “blocks per second”).

Server-side tick counter for consistent timing.

Conservative Violation Level (VL) accumulation + decay to reduce false positives.

Anti-FP grace windows for:

Teleport / Respawn / World change (reset + grace)

Velocity/knockback (dynamic grace based on applied velocity)

Damage events (explosions/hits buffer)

Many legit conditions accounted for (sprint/sneak, speed/slowness potions, surfaces: ice/slime/honey/soul sand/soil + soul speed/cobweb/berries/powder snow, jump inertia buffer, vertical buffer).

Clearer alerts: Distance vs AllowedDistance with optional detail info.

✅ FastBreak (hardening + more reliable timing)

More server-authoritative timing:

START from ProtocolLib START_DESTROY_BLOCK (or BlockDamageEvent fallback)

END measured on BlockBreakEvent (server authoritative)

STOP packet not used for timing (too noisy)

Strong FP reduction filters:

Ignore instant/soft blocks under min_hardness

Ignore ambiguous samples (dtTicks <= 0)

Ignore extreme lag samples (max_dt_ticks)

Strict START/BREAK same block validation (BlockKey)

Stale start cleanup (start_expire_ticks)

Improved expected-time calculation (more vanilla-like, stackable):

Efficiency, Haste, Mining Fatigue

Underwater penalty without Aqua Affinity

Airborne penalty (!onGround)

Harvestability based on real drops (block.getDrops(tool)), more accurate than heuristics

⚠️ CHECKS “IN REVIEW” (touched but not fully resolved yet)
⚠️ Jesus

Added multiple false-positive protections (edge detection, hitbox corner sampling, post-fluid/teleport grace, vehicle/legit surface exclusions).

Current issue: with current safeguards it does not reliably detect Jesus/water-walk (too conservative) → needs further tuning to keep “zero FP” while catching the cheat.

⚠️ Speed (requested refinements)

Reported issues:

detection not always immediate

possible “tail detection” right after disabling cheat

liquid handling could be improved

⚠️ FastBreak (edge cases)

Reported issues: some false positives still occur in specific scenarios → further refinement needed for expected-time/conditions.