AntiAFKPlus v2.4 Changelog

Large AFK Pool Detection Enhancement
Problem Identified
Issue: Players were bypassing AFK detection by creating large AFK pools (20x10+ blocks) that circumvented existing detection systems.

Root Cause:

• Current detection focused on small confined spaces (≤5x5 blocks) and water circles (≤3 block radius)
• Large pools allowed players to move naturally via water currents without manual input
• System detected movement but couldn't distinguish between manual keystrokes and automatic water current movement

Solution Implemented

New Detection Features

1. Keystroke Timeout Detection

• Added detection for players who don't provide manual keyboard input for extended periods
• Distinguishes between manual WASD movement and automatic water current movement
• Configurable timeout threshold (default: 3 minutes)

2. Large AFK Pool Pattern Recognition

• Expanded detection to identify pools between 5x5 and 25x25 blocks
• Analyzes movement patterns to identify water current automation
• Multi-factor validation prevents false positives

3. Enhanced Movement Analysis

• Velocity analysis to detect consistent water current speeds
• Direction change analysis to identify artificial vs natural movement
• Automatic vs manual movement classification

Technical Changes

Files Modified:

• MovementListener.java: Added keystroke detection and movement analysis
• PatternDetector.java: Implemented large pool detection algorithms
• config.yml: Added configuration options for new detection methods

New Configuration Options:

Code (YAML):

pattern-detection-settings:
  large-pool-threshold : 25.0   # Maximum area for large AFK pools
  keystroke-timeout-ms : 180000   # 3 minutes without manual input
  automatic-movement-velocity-threshold : 0.15   # Water current detection

Detection Logic

Large AFK Pool Detection Criteria:

1. Movement area > 5x5 but < 25x25 blocks
2. Player in water for extended periods
3. Movement patterns consistent with water currents
4. No manual keystrokes detected for 3+ minutes

Only triggers AFK when ALL criteria are met, ensuring legitimate gameplay is not affected.

✅ Benefits

• Closes bypass loophole: Large AFK pools (20x10+) are now detected effectively
• Maintains accuracy: Multi-factor validation prevents false positives
• Configurable: Server owners can adjust thresholds based on their needs
• Performance optimized: Minimal impact on server performance
• Backward compatible: All existing detection methods remain unchanged

Version: 2.4
Release Date: 2025-08-07
Compatibility: Minecraft 1.16 - 1.21.8 Java: 17+