Dynamic Falling Tree

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Dynamic Falling Tree

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Topple trees with realistic physics! Features dynamic tipping, fragile leaf collisions, and full configuration support via ModMenu.

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CurseForge logo CurseForge Modrinth logo Modrinth

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About

Project Details

Type
Mod
License
MIT License
Latest Version
dynamic-falling-tree-1.0.0.jar
Authors
CurseForge
Modrinth

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Modrinth ID

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About

Description

Dynamic Falling Tree

Realistic tree falling physics for Minecraft 1.21.1 (Fabric). When you chop a tree, it falls over using rigid-body physics instead of instantly disappearing.

Tree falling demo

In-game screenshot

What It Does

  • Chopping the base log of a tree causes the entire tree to tip over and fall using real physics simulation.
  • Blocks are removed flicker-free via a BARRIER -> AIR sequence in the same server tick.
  • Trees spawn impact smoke particles when they hit the ground.
  • Leaves break naturally after the tree settles, with vanilla particle effects.
  • Works on rootless/floating trees as well as grounded ones.

Requirements

Dependency Version
Minecraft 1.21.1
Fabric Loader >= 0.16.9
Fabric API >= 0.110.0+1.21.1
Sable >= 1.2.2

Installation

  1. Install Fabric Loader for 1.21.1.
  2. Download Sable and place it in your mods/ folder.
  3. Download this mod's JAR and place it in mods/.
  4. Launch and chop a tree.

Configuration

Config file auto-generates at .minecraft/config/treephysics.properties:

rootless_tree_detection=true
requires_axe=false
prevent_interacting_with_trees=true
rooted_dirt_generation=true
impulse_torque=2.0
impulse_force=1.5
Option Description Default
rootless_tree_detection Allow floating trees to fall. true
requires_axe Only trigger physics when holding an axe. false
prevent_interacting_with_trees Block placing/using items on falling trees. true
rooted_dirt_generation Generate rooted dirt under naturally spawned trees. true
impulse_torque Rotational force applied to falling trees. 2.0
impulse_force Linear push force applied to falling trees. 1.5

How It Works

  1. Detection: Breaking a log triggers a flood-fill search for connected logs, leaves, and attached blocks.
  2. Validation: The detected structure is validated as a tree (must have a root on dirt or have leaves if rootless mode is on).
  3. Assembly: Valid tree blocks are converted into a Sable ServerSubLevel — a physics-backed block container with independent collision and transform.
  4. Flicker Fix: Original world blocks are replaced with BARRIER, then immediately AIR, preventing any visual flicker.
  5. Impulse: A directional force and torque are applied based on the player's position, causing the tree to tip over.
  6. Impact & Decay: While falling, the server tracks velocity. Ground contact spawns smoke particles. After settling, leaves break naturally.

Technical Details

  • Built on the Sable physics engine using SubLevel rigid-body simulation.
  • All physics runs server-side and syncs to clients over the network.
  • Singleplayer and multiplayer compatible.
  • Licensed under MIT.

Dynamic Falling Tree

Realistic tree falling physics for Minecraft 1.21.1 (Fabric). When you chop a tree, it falls over using rigid-body physics instead of instantly disappearing.

Tree falling demo

In-game screenshot

What It Does

  • Chopping the base log of a tree causes the entire tree to tip over and fall using real physics simulation.
  • Blocks are removed flicker-free via a BARRIER -> AIR sequence in the same server tick.
  • Trees spawn impact smoke particles when they hit the ground.
  • Leaves break naturally after the tree settles, with vanilla particle effects.
  • Works on rootless/floating trees as well as grounded ones.

Requirements

Dependency Version
Minecraft 1.21.1
Fabric Loader >= 0.16.9
Fabric API >= 0.110.0+1.21.1
Sable >= 1.2.2

Installation

  1. Install Fabric Loader for 1.21.1.
  2. Download Sable and place it in your mods/ folder.
  3. Download this mod's JAR and place it in mods/.
  4. Launch and chop a tree.

Configuration

Config file auto-generates at .minecraft/config/treephysics.properties:

rootless_tree_detection=true
requires_axe=false
prevent_interacting_with_trees=true
rooted_dirt_generation=true
impulse_torque=2.0
impulse_force=1.5
Option Description Default
rootless_tree_detection Allow floating trees to fall. true
requires_axe Only trigger physics when holding an axe. false
prevent_interacting_with_trees Block placing/using items on falling trees. true
rooted_dirt_generation Generate rooted dirt under naturally spawned trees. true
impulse_torque Rotational force applied to falling trees. 2.0
impulse_force Linear push force applied to falling trees. 1.5

How It Works

  1. Detection: Breaking a log triggers a flood-fill search for connected logs, leaves, and attached blocks.
  2. Validation: The detected structure is validated as a tree (must have a root on dirt or have leaves if rootless mode is on).
  3. Assembly: Valid tree blocks are converted into a Sable ServerSubLevel — a physics-backed block container with independent collision and transform.
  4. Flicker Fix: Original world blocks are replaced with BARRIER, then immediately AIR, preventing any visual flicker.
  5. Impulse: A directional force and torque are applied based on the player's position, causing the tree to tip over.
  6. Impact & Decay: While falling, the server tracks velocity. Ground contact spawns smoke particles. After settling, leaves break naturally.

Technical Details

  • Built on the Sable physics engine using SubLevel rigid-body simulation.
  • All physics runs server-side and syncs to clients over the network.
  • Singleplayer and multiplayer compatible.
  • Licensed under MIT.

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