AntiRedstoneLag

Bug Fixes Implemented:

Resolved Redstone Duplication: Added a "state check" to the removal logic. The plugin now verifies if a block is already AIR before attempting to drop it again, which prevents fast redstone clocks from spawning multiple items in a single tick. Fixed Ineffective Actions (REMOVE/DISABLE): Previously, the plugin was removing blocks without physics updates, which created "ghost blocks" and didn't stop neighboring redstone components. Now updated the logic to use applyPhysics = true. This ensures the Paper/Spigot physics engine is properly notified, immediately breaking the redstone chain and ensuring the client-side view stays in sync.

Version 2.0.0

Bug Fixes

• Fixed version mismatch - Synchronized pom.xml version with plugin.yml (both now 2.0.0)
• Fixed unused variable - Removed unused materialName variable in RedstoneListener
• Fixed stats command - /arl stats now shows real statistics from CounterManager instead of hardcoded zeros
• Fixed unused imports - Removed unused imports from CommandHandler and RedstoneListener
• Fixed potential NPE - Added null check for location.getWorld() in CounterManager.sendAlert() to prevent crashes with unloaded chunks
• Fixed event priority - Changed from MONITOR to LOW priority since we modify block state
• Fixed log download - /arl logs download now shows log file info (name, size, path, modified date)

Optimizations

• Thread-safe counters - Replaced HashMap with ConcurrentHashMap and AtomicInteger for thread safety
• Memory-efficient keys - Using String keys instead of Chunk/Location objects to prevent memory leaks
• Extracted time constants - Magic numbers replaced with named constants (TICKS_PER_HOUR, TICKS_PER_DAY, DAY_MS, ALERT_COOLDOWN_MS, BATCH_SIZE, FLUSH_INTERVAL_MS)
• Cached config values - RedstoneListener now caches redstone materials, enabled worlds, and removal action for better performance
• Refresh cache on reload - Cached values are automatically refreshed when config is reloaded
• Reduced object allocation - Avoid creating Location objects in hot path; only create when actually needed for logging
• Batched log writes - Log entries are buffered and flushed every 50 entries or 500ms instead of on every write
• Improved log rotation - Log file size is now checked on every flush, not just during cleanup task
• Primitive collections (fastutil) - Replaced ConcurrentHashMap<String, AtomicInteger> with Object2IntOpenHashMap to eliminate boxing overhead and reduce memory allocations

New Features

• Bypass permission - Players with antiredstonelag.bypass permission can place redstone without limits
• Block owner tracking - Tracks who placed redstone blocks for bypass permission checks
• Configurable reset interval - New reset-interval-ticks config option (default: 20 ticks = 1 second)
• Debug mode - New debug config option for verbose logging during troubleshooting
• Config validation - Threshold values are now validated (must be positive)
• Alert cooldown - 1 second cooldown between alerts to prevent spam when multiple blocks are removed
• Persistent statistics - Statistics (totalRemovals, removalsToday) are saved to stats.yml and survive server restarts
• Configurable removal action - New removal-action config option with three modes:
  • REMOVE - Set block to air (default)
  • DISABLE - Cancel redstone signal without removing block
  • DROP - Break block and drop item
• Warning system - Warns players when their redstone activity approaches the threshold
  • Configurable warning threshold (default: 80% of limit)
  • Per-player cooldown to prevent spam
  • Only warns block owners who are online
• Update checker - Automatically checks for new versions on SpigotMC
  • Notifies admins with antiredstonelag.admin permission on join
  • Non-blocking async check on startup
• Whitelist mode - Only monitor specific chunks instead of all chunks
  • Configure chunks as world:chunkX:chunkZ format
  • Useful for monitoring only known problem areas

Improvements

• Real-time statistics - Stats command now displays actual monitored chunks, blocks, total removals, and daily removals
• Better code structure - CommandHandler now receives CounterManager via dependency injection
• Improved config comments - Better documentation in config.yml
• Stats saved on shutdown - Statistics are automatically saved when the plugin is disabled
• Null safety - Added null checks to CounterManager methods to prevent potential NPEs
• JavaDoc comments - Added documentation to key methods

New Permissions

• antiredstonelag.bypass - Bypass redstone limits (default: false)

New and Improved Features

Read the description

Added Support for 1.21.8

First Release