Overview

PlaneMiner extends the standard pickaxe behavior so that when you sneak and break a block, all matching blocks in the 3x3 plane around the hit face are broken at the same time. No configuration files, no new items — it simply works with any vanilla pickaxe.

Features

3x3 plane mining — breaks up to 8 additional blocks surrounding the one you destroy
Face-based plane detection — the mining plane aligns to the face you hit (top/bottom → horizontal plane, side → vertical plane)
Same-block filter — only blocks of the same type as the clicked block are affected
Vanilla-compatible drops — uses the game's standard destroy logic, so Fortune, Silk Touch, Unbreaking, and XP work exactly as normal
Safe targeting — bedrock, fluids, tile entities (chests, furnaces, etc.), and air are never affected
No client-side dependency conflicts — no custom items, GUIs, or packets added

Requirements

Component	Version
Minecraft	1.20.1
Forge	47.4.0 or later (1.20.1)
Java	17

Usage

Hold any pickaxe in your main hand.
Hold Shift (sneak).
Break a block as normal.
All matching blocks in the 3x3 plane around the hit face are destroyed simultaneously.

Example: Hit the top face of a stone block while sneaking → all stone blocks in a 3x3 horizontal grid at that Y level are mined.

License

MIT License — see LICENSE for details.