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