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IBREALISTIC

IBREALISTIC

The Unofficial fork of OpenBoatUtils, original by o7moon. This mod added MORE realistic rally aspects for IBREAL or another server

686downloads
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686downloads
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Licensed MIT
Published 6 months ago
Updated 6 months ago
All versions

1.1.0

Release
IBREALISTIC 1.1.0 1.21.46 months ago 81
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Compatibility

Minecraft: Java Edition
1.21.3–1.21.4
Platform
Fabric
Supported environments
Client-side

Required content

Unavailable version
Any compatible version

Changes

🏁 IBRealistic v1.1.0

Released: February 22, 2026 Full Changelog: https://github.com/Kanorto/IBREALISTIC/compare/v1.0.7...v1.1.0

This is the largest update to the mod since the first stable release. Over the course of development (v1.0.8 → v1.0.9 → v1.1.0), the following major features were added: full rally procedures, a damage & wear system, telemetry, ghost racing, tournaments, GUI, anti-cheat — and finally a significant physics engine overhaul.

🔄 Rebrand & Architecture

The mod was renamed from OBURealistic to IBRealistic and rearchitected as a proper add-on to OpenBoatUtils.

  • New package dev.kanorto.ibrealistic, channel ibrealistic:settings
  • IBRealistic is now an add-on to OpenBoatUtils instead of a standalone mod
    • OBU handles packets 0–32 on openboatutils:settings
    • IBRealistic handles packets 33–69 on ibrealistic:settings
  • Removed ~25 duplicate fields and ~30 duplicate methods
  • Added openboatutils >= 0.4.10 dependency in fabric.mod.json
  • Build hash verification
  • All Mixins deduplicated to 5 unique hooks in BoatMixin

🏎️ Rally Procedures

Race System

  • SoloRaceManager — solo races with full player isolation (Player.hideEntity())
  • Session lifecycle: WAITING → COUNTDOWN → RACING → FINISHED / CANCELLED
  • Multiplayer races — integration with QuickRace (Event/Round/Heat)
  • Start procedure: 5→1→GO countdown with Title messages + sounds
  • Leaderboards filtered by car type (system / custom)
  • Auto-cancel after configurable timeout
  • Commands: /race solo, /race create, /race join, /race start, /race cancel, /race leave, /race results, /race top

Track Settings

  • Weather: CLEAR, RAIN, HEAVY_RAIN, SNOW, FOG with grip modifiers
  • Time of day: DAWN, NOON, SUNSET, NIGHT, MIDNIGHT or arbitrary ticks
  • Dynamic weather — auto-change with configurable interval (DynamicWeatherManager)
  • Track difficulty — 1–5 stars, reward multipliers ×1.0 — ×2.5
  • Commands: /te weather, /te time, /te dynamicweather, /te difficulty

Rally Procedures

  • Synchronized start — colored messages (🔴→🟡→✦ GO! ✦)
  • False start detection — movement during countdown triggers penalties: 10s → 60s+restart → DQ
  • Time Controls — checkpoints with allowed windows, penalties for early/late arrival
  • Service Park (SERVICEPARK) — auto-repair zones with time limit and visual progress
  • Recce (reconnaissance) — 50% speed mode with a notes system /race recce note <text>
  • Multi-stage rally — full lifecycle (RallyEvent, RallyStage, RallyParticipant), 9 /rally subcommands, super-rally support (DNF = +5 min penalty)

🔩 Damage & Wear System

  • Tire wear — 4 independent tires (0.0–1.0), grip degradation μ up to −30%; depends on surface, speed, and driving style
  • Engine overheating — heats up at full throttle >30s, power loss up to −50%, cools down on throttle release
  • Body damage — server-side collision calculation, 4 damage levels with effects (steering, power, max speed)
  • Repair in service zones — automatic restoration of tires, engine, and body
  • HUD — wear bars and indicators with smooth fade-out
  • Visual effects — smoke, sparks, overheat particles
  • Sync packets 70–76 (SYNC_TIRE_WEAR, SYNC_ENGINE_TEMP, SYNC_BODY_DAMAGE, SET_SERVICE_ZONE, DAMAGE_NOTIFICATION)

🛡️ Anti-Cheat

  • AntiCheatManager — server-side validation of speed, acceleration, and teleportation
  • Graduated actions: warning → teleport to safe position → disqualification
  • Car config validation: preset and level checks
  • Economy protection: rate limiting, transfer caps, dupe detection
  • 30-second cooldown after disqualification
  • Violations logged to DB (ts_anticheat_violations)

🖥️ GUI

All interfaces are full inventory GUIs with color indicators and sounds:

GUI Size Description
ShopGui 54 slots Preset shop with categories
GarageGui 54 slots Car garage, components, actions
ProfileGui 36 slots Level, XP, balance, stats
DailyGui 27 slots Challenges, progress bars, timer
TrackGui — Weather, difficulty, records, rewards
  • Command /profile [player] to view any player's profile

✨ Visual Effects & Sounds

  • Surface particles — gravel→smoke, dirt→mycelium, snow→snowflakes, wet→splashes
  • Wheel lock & drift smoke (drift detection: yawRate > 0.3 rad/s)
  • Sounds — engine (pitch scales with speed), tire squeal, impacts, surface-specific audio
  • RaceBossBarManager — track, time, weather, car; progress color: 🟢 (ahead of PB) → 🟡 → 🔴

📡 Telemetry

  • Client-side recording — TelemetryFrame (82 bytes/tick, 24 fields), GZIP compression, .ibrt files
  • Server upload — fragmented packets 80–84
  • Server-side validation — 9 mandatory checks + 3 statistical checks
  • Auto-record on race start, auto-upload on finish
  • Races without valid telemetry count for 20% rewards only

👻 Ghost Racing

  • Auto-saves ghost on personal best improvement
  • 3 display modes: LINE, BOAT, COMPETITION — with transparency and color palette
  • Real-time delta (±seconds) when overtaking / falling behind
  • Commands: /line, /line mode, /line count, /line info
  • Ghost Line button in settings GUI

🏆 Tournaments

  • 4 types — SPRINT, RALLY, ENDURANCE, BRACKET (double elimination, up to 64 players)
  • Glicko-2 rating system with 5 ranks: Bronze → Silver → Gold → Platinum → Champion
  • Season system — 3 months, F1-style points (25-18-15-12-10-8-6-4-2-1), soft reset
  • Automated weekly tournaments with result broadcasts
  • 10 /tournament subcommands
  • Expanded daily challenges (9 types, including tournament-related)

⚙️ Physics Fixes

Critical bugs in the physics engine that affected all aspects of driving:

🐛 Bug Fixes

Vanilla paddle acceleration leak updatePaddles() was adding +0.04 b/t of velocity even when the realistic physics engine was active, causing ~3.5× over-acceleration on the ground. Vanilla velocity isolation now runs on both ground and airborne states.

Bump-induced backward kick Naive frame projection during collisions could reverse the vehicle's direction. Added a clamp: vx cannot go negative while the vehicle has sufficient expected speed.

Steering return stalling near zero Exponential steering return decayed asymptotically and never fully reached center — especially at standstill. Added a linear component (0.8 rad/s centering spring): full return takes ~0.625s even at rest.

🔧 Physics Constants Retuning

12 physics constants retuned for more predictable and comfortable driving:

Constant Before → After Effect
YAW_RATE_DAMPING 0.985 → 0.978 Rotation settles ~40% faster
LATERAL_VELOCITY_DAMPING 0.985 → 0.975 Faster sideways correction
LATERAL_VELOCITY_DAMPING_ACTIVE 0.995 → 0.985 Less lateral buildup in turns
MAX_LATERAL_SPEED_RATIO 1.5 → 1.0 Tighter sideways speed cap
STEERING_REVERSAL_FORCE_RETENTION 0.3 → 0.15 Faster steering direction change
STEERING_REVERSAL_VELOCITY_RETENTION 0.5 → 0.3 Quicker lateral reset on reversal
STEERING_LINEAR_RETURN_RATE 0.5 → 0.8 Faster centering (0.625s vs 1.0s)
MAX_COLLISION_LATERAL_INJECTION 1.5 → 1.0 Less sideways kick from bumps
COLLISION_LATERAL_FORCE_DAMPING 0.5 → 0.3 Stronger force reset on collision
LANDING_LATERAL_DAMPING 0.5 → 0.3 More stable landings
LANDING_YAW_RATE_DAMPING 0.8 → 0.6 Less spin on landing
STRAIGHT_LINE_LATERAL_DAMPING 0.93 → 0.88 Better straight-line tracking

Full Changelog: https://github.com/Kanorto/IBREALISTIC/compare/v1.0.7...v1.1.0