26.2 Experience Orb Attraction

✨ Experience Orb Attraction (MC 26.2)

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Feature Infobox	Technical Parameters
Target Entity Class	net.minecraft.world.entity.ExperienceOrb
Manager Class	net.instantgratification.magnet.MagnetManager
Enabling GameRule	ig:magnet_affects_xp (Default: true)
Scanning Query	player.level().getEntitiesOfClass(ExperienceOrb.class, area, Entity::isAlive)
Particle Type	ParticleTypes.ELECTRIC_SPARK
Particle Throttle	Shared with items via ig:magnet_max_particle_sources

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📖 Experience Vacuum Mechanics

Under the Instant Gratification philosophy, leaving experience orbs scattered on the ground or stuck on cave ceilings disrupts gameplay flow. Magnet, Let me get that! provides first-class support for attracting ExperienceOrb entities alongside dropped items.

+------------------+     getEntitiesOfClass     +-----------------------+     MagnetMovement.pull     +--------------------+
| Player Scan AABB | -------------------------> | List<ExperienceOrb>   | --------------------------> | Player Collection  |
+------------------+                            +-----------------------+                             +--------------------+
                                                            |
                                                            v
                                                [Apply NoClip Phase-Shift]
                                                [Apply Lerp Velocity Vector]
                                                [Throttled Spark Particles]

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⚡ Synchronized Physics & Phase Shifting

When ig:magnet_affects_xp is enabled, all experience orbs in range inherit the exact same advanced mechanics as dropped items:

1. Phase Shifting (NoClip): Experience orbs clip through solid blocks when pulled, preventing them from orbiting or bouncing endlessly against walls.
2. Dynamic Acceleration: Experience orbs follow the same speed ($s = \text{speed}/100.0$) and acceleration ($a = \text{accel}/100.0$) lerp calculations.
3. Line-of-Sight Filtering: If ig:magnet_los_only is true, XP orbs must pass both the primary 360° raycast and secondary granular checks.

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🛡️ Performance & Lag Prevention (Particle Caps)

High-density mob farms or Ender Dragon boss fights can generate hundreds of individual experience orbs simultaneously. Spawning particles on every orb per tick could cause severe client FPS drops.

The mod prevents particle lag through Global Particle Source Throttling:

int maxParticleSources = ModGameRules.getInt(player.level(), ModGameRules.MAGNET_MAX_PARTICLE_SOURCES);
int particleSourceCount = 0;

for (ExperienceOrb orb : orbs) {
    boolean shouldSpawnParticles = false;
    if (particleSourceCount < maxParticleSources) {
        shouldSpawnParticles = true;
        particleSourceCount++;
    }
    MagnetMovement.pull(orb, player, shouldSpawnParticles);
}

• Global Cap: Only the first $N$ entities (configured by ig:magnet_max_particle_sources, default: 5) are permitted to emit spark particles on any given tick.
• Tick Staggering: Particles are only emitted when (entity.tickCount + entity.getId()) % 4 == 0 (every 4 ticks = 5 times per second).

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⚙️ Relevant Configuration & GameRules

GameRule	Type	Default	Unit / Range	Description
ig:magnet_affects_xp	Boolean	true	true/false	Whether experience orbs are pulled by the magnet.
ig:magnet_particles	Boolean	true	true/false	Master toggle for electric spark visual trails.
ig:magnet_particle_count	Integer	1	0..100	Number of spark particles spawned per active source.
ig:magnet_max_particle_sources	Integer	5	0..100	Max simultaneous entities allowed to emit particles.

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🔗 Related Wiki Documentation

• Vacuum & Phase Shifting Physics
• GameRules Complete Reference
• HUD & Visual Diagnostics
• Return to MC 26.2 Portal