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Mineforgian

AntiFlight

Paper Plugin and Fabric mod to exclusively prevent flight and speed based hacks, including Elytra and BoatFly etc. Achieved without simulation and made as simple as possible.

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Подписчики
9
Обновлён
20 августа 2026 г.
Лицензия
GPL-3.0-only

Опубликован 23 января 2026 г.

Исходный кодСообщить об ошибке

AntiFly

LOGO

Lightweight Paper + Fabric flight-control plugin by CevAPI.

Current release: 1.1.2

AntiFly is not a full anti-cheat - it focuses on flight/movement abuse with layered checks:

  • server-side ground/support truth (never trusts client onGround)
  • buffered air/hover/anti-kick suspicion + sustained-air detection
  • disciplined setbacks to last known valid support
  • Elytra checks that only flag what vanilla physics can't do (speed, instant vertical, stall)
  • teleport-aware rebasing; /tp, pearls, chorus, portals never trigger setbacks
  • Hunger Mode, a configurable food/health tax instead of hard blocks

Platforms

  • Paper: 1.21.1-26.2 (Folia-supported)
  • Fabric: 1.21.11 / 26.1.2 / 26.2

Install

  • Paper: drop the jar into plugins/
  • Fabric: drop the jar into mods/

Commands

Same set on Paper & Fabric. Requires op / antifly.admin on Paper, moderator-level on Fabric.

  • /antifly enable|disable|status|help
  • /antifly hungermode <on|off>
  • /antifly set - lists every tunable key with its current value
  • /antifly set <key> - read one value
  • /antifly set <key> <value> - set one (applies instantly, auto-saves)
  • /antifly alerts <off|game|console|both>
  • /antifly debug <on|off>
  • /antifly exempt <player> / /antifly unexempt <player>
  • /antifly reset <player>
  • /antifly disabledworlds <worldName> <true|false>

Tuning keys

All adjustable live via /antifly set. Defaults in brackets.

Movement

groundWalkMax (0.67) · groundMountedMax (0.75) · waterMax (0.55) · waterVerticalMax (0.7) · boatMaxHorizontal (0.85) · maxAirHorizontal (1.8) · maxAirVertical (1.0) · sustainedAirTicksLimit (150)

Elytra

Same keys on both platforms. On Fabric the rocket/no-rocket variants map to the single caps elytraMaxHorizontal (6.0) and elytraMaxUp (4.0); on Paper they're independent.

  • elytraMaxHorizontal / elytraNoRocketSustainableHorizontal / elytraMaxRocketHorizontal
  • elytraMaxUp / elytraMaxNoRocketUp / elytraMaxRocketUp
  • elytraEnabled · elytraBoostGraceTicks · elytraStallTicks · elytraMovementBufferLimit

Hunger Mode

  • hungerModeMaxBlocksPerSecond (200) · hungerModeHungerPerSecondAtMaxSpeed (10) · hungerModeRocketGraceTicks (80) · hungerModeAirborneMinimumBlocksPerSecond (20)
  • hungerModeFlightDamageEnabled (true) · hungerModeFlightDamageAfterSeconds (20) · hungerModeFlightDamageAfterHungerSeconds (30) · hungerModeFlightDamagePerSecond (1)
  • hungerModeElytraFoodEnabled (true) · hungerModeElytraFoodMultiplier (0.5) · hungerModeElytraSpeedThresholdBps (50) · hungerModeElytraNoRocketAfterSeconds (45) · hungerModeElytraDamageEnabled (true) · hungerModeRocketResetsDamage (true)

Hunger Mode

  • /antifly hungermode on - replaces hard blocks with a food drain. Hovering always drains slowly, and client onGround spoofing can't bypass it.
  • Drain scales quadratically with horizontal speed (cap 200 BPS = 10 food/s). Rocket boost = free for 80 ticks; gliding pays by its real speed (no unfair elytra tax).
  • After 20s of continuous unsupported flight (not gliding), real health damage kicks in (generic damage, in full-heart chunks every 2s, every 4s while descending). Health damage always follows hunger: the timer only counts while hunger is actively draining, so the hunger phase comes first.
  • Elytra is only punished when exploiting: flying over the speed threshold, hover-hacking, or gliding for a long time without any rocket (45s). Vanilla gliding (with rockets) is completely free - no food drain, no health damage. For elytra, health damage only starts after hunger has been actively draining for 30s.

Notes on Elytra

  • Checks only block what vanilla can't do: sustained speed beyond ~6 b/t, instant climbs beyond ~4 b/t, and stall-hovering. Steep dives, pull-ups, rocket boosts and crashing into obstacles are all allowed.
  • Repeated ground-flag spoofing can't refresh landing grace; sustained flat-air movement is blocked after 20 air ticks at 0.45 b/t.

Permissions (Paper)

  • antifly.admin (default: op) · antifly.alerts (default: op)

Config

  • Paper: plugins/AntiFly/config.yml · Fabric: config/antifly.json
  • Disable AntiFly per world with disabledWorlds: [] on either platform
  • Modrinth check (slug antiflight): /antifly status + startup warning when outdated

Ченджлог

1.1.2Релиз26.1.1, 26.1.2, 26.2 · 20 августа 2026 г.

Hunger Mode

  • /antifly hungermode <on|off> - replaces hard blocks with a food/health tax
  • Food drain scales with speed (cap 200 BPS = 10 food/s); hovering always drains slowly, even floating still in the sky - client onGround spoofing can't bypass it
  • Health damage kicks in after sustained flight, only after hunger has been draining (elytra: 30s of active drain; others: 20s). Ticks every 2s (4s while descending), so landing is always survivable
  • Rockets reset the damage timer with elytra flight.

Elytra

  • Checks only block what vanilla can't do: sustained speed >6 b/t, instant climbs >4 b/t, stall-hovering. Dives, pull-ups, rocket boosts and crashes are all allowed
  • Only punished when exploiting: speed >50 BPS, hover-hack, or gliding 45s without a rocket. Vanilla gliding with rockets = free

Fixes

  • Teleports (pearls, chorus, portals, /tp, plugin warps) no longer trigger setbacks; plugged a teleport-fly exploit
  • New sustained-air check: airborne 7.5s without support → rubber-banded
  • Ground walk default raised to 0.67

All tunable in-game

  • /antifly set - hunger rate, hover floor, elytra thresholds, flight damage timing, sustained-air limit. Lists values too.
1.1.2Релиз26.2 · 20 августа 2026 г.

Hunger Mode

  • /antifly hungermode <on|off> - replaces hard blocks with a food/health tax
  • Food drain scales with speed (cap 200 BPS = 10 food/s); hovering always drains slowly, even floating still in the sky - client onGround spoofing can't bypass it
  • Health damage kicks in after sustained flight, only after hunger has been draining (elytra: 30s of active drain; others: 20s). Ticks every 2s (4s while descending), so landing is always survivable
  • Rockets reset the damage timer with elytra flight.

Elytra

  • Checks only block what vanilla can't do: sustained speed >6 b/t, instant climbs >4 b/t, stall-hovering. Dives, pull-ups, rocket boosts and crashes are all allowed
  • Only punished when exploiting: speed >50 BPS, hover-hack, or gliding 45s without a rocket. Vanilla gliding with rockets = free

Fixes

  • Teleports (pearls, chorus, portals, /tp, plugin warps) no longer trigger setbacks; plugged a teleport-fly exploit
  • New sustained-air check: airborne 7.5s without support → rubber-banded
  • Ground walk default raised to 0.67

All tunable in-game

  • /antifly set - hunger rate, hover floor, elytra thresholds, flight damage timing, sustained-air limit. Lists values too.
1.1.2Релиз26.1.2 · 20 августа 2026 г.

Hunger Mode

  • /antifly hungermode <on|off> - replaces hard blocks with a food/health tax
  • Food drain scales with speed (cap 200 BPS = 10 food/s); hovering always drains slowly, even floating still in the sky - client onGround spoofing can't bypass it
  • Health damage kicks in after sustained flight, only after hunger has been draining (elytra: 30s of active drain; others: 20s). Ticks every 2s (4s while descending), so landing is always survivable
  • Rockets reset the damage timer with elytra flight.

Elytra

  • Checks only block what vanilla can't do: sustained speed >6 b/t, instant climbs >4 b/t, stall-hovering. Dives, pull-ups, rocket boosts and crashes are all allowed
  • Only punished when exploiting: speed >50 BPS, hover-hack, or gliding 45s without a rocket. Vanilla gliding with rockets = free

Fixes

  • Teleports (pearls, chorus, portals, /tp, plugin warps) no longer trigger setbacks; plugged a teleport-fly exploit
  • New sustained-air check: airborne 7.5s without support → rubber-banded
  • Ground walk default raised to 0.67

All tunable in-game

  • /antifly set - hunger rate, hover floor, elytra thresholds, flight damage timing, sustained-air limit. Lists values too.
1.1.2Релиз1.21.11 · 20 августа 2026 г.

Hunger Mode

  • /antifly hungermode <on|off> - replaces hard blocks with a food/health tax
  • Food drain scales with speed (cap 200 BPS = 10 food/s); hovering always drains slowly, even floating still in the sky - client onGround spoofing can't bypass it
  • Health damage kicks in after sustained flight, only after hunger has been draining (elytra: 30s of active drain; others: 20s). Ticks every 2s (4s while descending), so landing is always survivable
  • Rockets reset the damage timer with elytra flight.

Elytra

  • Checks only block what vanilla can't do: sustained speed >6 b/t, instant climbs >4 b/t, stall-hovering. Dives, pull-ups, rocket boosts and crashes are all allowed
  • Only punished when exploiting: speed >50 BPS, hover-hack, or gliding 45s without a rocket. Vanilla gliding with rockets = free

Fixes

  • Teleports (pearls, chorus, portals, /tp, plugin warps) no longer trigger setbacks; plugged a teleport-fly exploit
  • New sustained-air check: airborne 7.5s without support → rubber-banded
  • Ground walk default raised to 0.67

All tunable in-game

  • /antifly set - hunger rate, hover floor, elytra thresholds, flight damage timing, sustained-air limit. Lists values too.
1.1.1Релиз1.21.11 · 17 августа 2026 г.
  • Added ground_spoof_speed detection for fast movement while the client reports airborne.
  • Restricted landing grace to players who were genuinely gliding.
  • Prevented repeated ground/air transitions from continually refreshing elytra grace.
  • Added sustained flat-flight detection after 12 air ticks.
  • Flat cruise detection triggers at horizontal movement ≥ 0.45.
  • Removed the requirement for hover detection to have near-zero horizontal movement, catching moving hover flight.
  • Added air_plane reason-to-setting mapping for Fabric logs.
  • Added case-insensitive canonical setting-key handling.
  • Improved normalization for keys such as:
    • groundWalkMax
    • groundMountedMax
    • waterMax
    • waterVerticalMax
1.1.1Релиз26.1.2 · 17 августа 2026 г.
  • Added ground_spoof_speed detection for fast movement while the client reports airborne.
  • Restricted landing grace to players who were genuinely gliding.
  • Prevented repeated ground/air transitions from continually refreshing elytra grace.
  • Added sustained flat-flight detection after 12 air ticks.
  • Flat cruise detection triggers at horizontal movement ≥ 0.45.
  • Removed the requirement for hover detection to have near-zero horizontal movement, catching moving hover flight.
  • Added air_plane reason-to-setting mapping for Fabric logs.
  • Added case-insensitive canonical setting-key handling.
  • Improved normalization for keys such as:
    • groundWalkMax
    • groundMountedMax
    • waterMax
    • waterVerticalMax
1.1.1Релиз26.2 · 17 августа 2026 г.
  • Added ground_spoof_speed detection for fast movement while the client reports airborne.
  • Restricted landing grace to players who were genuinely gliding.
  • Prevented repeated ground/air transitions from continually refreshing elytra grace.
  • Added sustained flat-flight detection after 12 air ticks.
  • Flat cruise detection triggers at horizontal movement ≥ 0.45.
  • Removed the requirement for hover detection to have near-zero horizontal movement, catching moving hover flight.
  • Added air_plane reason-to-setting mapping for Fabric logs.
  • Added case-insensitive canonical setting-key handling.
  • Improved normalization for keys such as:
    • groundWalkMax
    • groundMountedMax
    • waterMax
    • waterVerticalMax
1.1.1Релиз26.1.1, 26.1.2, 26.2 · 17 августа 2026 г.
  • Added ground_spoof_speed detection for fast movement while the client reports airborne.
  • Restricted landing grace to players who were genuinely gliding.
  • Prevented repeated ground/air transitions from continually refreshing elytra grace.
  • Added sustained flat-flight detection after 12 air ticks.
  • Flat cruise detection triggers at horizontal movement ≥ 0.45.
  • Removed the requirement for hover detection to have near-zero horizontal movement, catching moving hover flight.
  • Added air_plane reason-to-setting mapping for Fabric logs.
  • Added case-insensitive canonical setting-key handling.
  • Improved normalization for keys such as:
    • groundWalkMax
    • groundMountedMax
    • waterMax
    • waterVerticalMax

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