AntiESP 1.0.0 - First Release

Blocks ESP, wallhacks and xray by never sending the client what it shouldn't see.

👤 Player hiding: players behind walls are removed client-side. Ray-traced against several points on the body, configurable distance and wall count. Optionally keeps their floating nametag and tab-list entry.

📦 Block disguise: chests, shulkers, spawners, barrels and more show as stone from a distance or through walls, and turn real again up close.

⛏️ Ore obfuscator: self-written anti-xray. Enclosed ores are sent as stone, fake veins are scattered in, and in packet mode whole caves are filled with solid rock (freecam-proof). A flood-fill reveal opens the cave you're standing in, so caving stays normal. Fake pattern seeded from a fresh SecureRandom salt each server start.

Requirements

Paper 1.21.8+, Java 21. PacketEvents optional — needed for cave filling and the tab-list feature; everything else works without it.

Setup

Drop the jar in plugins/ and restart. Before going live, set ore-obfuscation.identity-test: true once and check the world looks normal — that verifies the chunk codec on your server build. Then set it back to false.

Commands: /antiesp reload, /antiesp status · Permissions: antiesp.admin, antiesp.bypass

Known limits

• Anyone who knows your world seed can regenerate ore positions server-side — no client-side anti-xray can prevent that.
• hide-caves is aggressive; set it to false if caving feels off.
• Only player block-breaking invalidates the chunk cache (not TNT/pistons/water).

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