Auto Replant Tree

Automatically replants saplings when you break a log block. Works on the server — no client mod needed.

Features

• All vanilla trees — Oak, Spruce, Birch, Jungle, Acacia, Dark Oak, Mangrove, Cherry, Pale Oak
• Nether trees — Crimson and Warped stems replant their respective fungi on nylium
• 2x2 support — Dark Oak and Jungle trees replanted as a 2x2 grid
• Sneak to cancel — Hold sneak while breaking to skip replanting
• No-sapling mode — Set requireSapling: false to plant without consuming saplings
• Stripped & wood variants — Recognizes all log, stripped log, wood, and hyphae variants
• Full inventory search — Finds saplings anywhere including offhand
• Per-tree config — Enable/disable specific trees via config/autoreplant.json

Supported Versions

Minecraft	Fabric	Forge	NeoForge
26.1.x	✅	✅	✅
1.21.4	✅	—	✅
1.20.1	✅	✅	—

How It Works

1. Break a log block
2. Holding sneak? (if sneakToDisable: true) → Skip
3. Matching sapling found in inventory? (skipped if requireSapling: false)
4. Ground valid? (dirt, grass, nylium, etc.)
5. Sapling planted, one consumed from inventory (none consumed if requireSapling: false)

Supported Trees

Log Type	Sapling Planted	2x2
Oak	Oak Sapling	No
Spruce	Spruce Sapling	No
Birch	Birch Sapling	No
Jungle	Jungle Sapling	Yes
Acacia	Acacia Sapling	No
Dark Oak	Dark Oak Sapling	Yes
Mangrove	Mangrove Propagule	No
Cherry	Cherry Sapling	No
Pale Oak	Pale Oak Sapling	No
Crimson Stem	Crimson Fungus	No
Warped Stem	Warped Fungus	No

Configuration

Config file at config/autoreplant.json:

{
  "sneakToDisable": true,
  "requireSapling": true,
  "trees": {
    "oak": true, "spruce": true, "birch": true,
    "jungle": true, "acacia": true, "dark_oak": true,
    "mangrove": true, "cherry": true, "pale_oak": true,
    "crimson": true, "warped": true
  }
}

• Set any tree to false to disable its auto-replant
• sneakToDisable: false → always replant regardless of crouching
• requireSapling: false → plant without consuming saplings

Installation

Drop the jar into your server's mods/ folder. Works server-side only — no client installation needed.

License

MIT