Fixes

• Fixed world block impact energy being computed from a structure's full velocity magnitude instead of just the velocity component along the actual contact normal. A structure accelerating tangentially under its own power (engine thrust, wheeled movement along the ground) was getting charged as if it collided with the ground on every tick, tearing up terrain it never actually hit. Only genuine impacts along the surface normal register now.

Complete Rewrite: This build is not a patch on top of the old gamma line, it's a ground-up rewrite of True Impact's entire damage system, physics event handling, and configuration architecture. The goal was a sturdier foundation: fewer crashes, more predictable behavior under heavy physics load, and room to keep building without fighting the old codebase. Some things you already know (block damage, cracking, Create interactions) are still here, just running on entirely new internals, alongside the new features below.

In-game configuration editing is finally here, along with a fully customizable compaction system and a batch of confirmed fixes carried over from the gamma line.

Highlights

• In-Game Config Editing: True Impact's settings can now be edited directly from the pause menu, no more digging through the .toml file by hand. Categories are laid out for easier browsing, and edits can be cancelled without saving.

• Custom Compaction Rules: Which blocks compact into which (grass into dirt, sand into sandstone, and so on), at what impact energy, and with what probability, is now fully configurable as a list you can add to and edit in-game, instead of a fixed set of hardcoded transformations.

Fixes

• Fixed block drop chance not being configurable, drops from destroyed blocks could pile up and cause lag when a lot of blocks broke at once. A new drop chance setting lets you dial this down independently of drop mode.

• Fixed tightly-fitted structure parts occasionally taking damage from resting contact instead of only from real impacts.

• Fixed terrain underneath a structure sliding along the ground being destroyed too easily compared to a direct downward impact; damage now scales properly with the actual direction of the hit.

• Fixed a crash that could occur when a physics structure was knocked over or rolled hard enough to trigger a native engine panic.

• Fixed the game crash tied to rope winches and rope connectors interacting with Sable's rope physics.

Config

• Added a large set of previously hardcoded tuning constants (crack thresholds, break formulas, confinement behavior, material base thresholds, and feedback rate limiting) to the advanced config, for players who want finer control over the damage formulas.

This is a compatibility hotfix for Sable 2.0.x. No gameplay changes.

Fixes

• Fixed crash on world load when using Sable 2.0.x (MixinTransformerError /
• InjectionError at SubLevelPhysicsSystem initialization). The mod now loads correctly alongside Sable 2.0.1.

Updated internal hooks to match Sable 2.0.x API changes:

• Physics pipeline collision data access (internal method restructuring)
• Block collision callback signature (new context parameter)
• Constraint handle factory signatures (body type change)
• Constraint configuration package reorganization

Requirements

• Sable 2.0.1 or later (this build does NOT support Sable 1.x)
• NeoForge 21.1.228
• Minecraft 1.21.1

Notes

• If you are still on Sable 1.x, stay on True Impact 1.1.0-gamma.
• This hotfix build will not load with Sable 1.x.

Highlights

• Bug Fixes: Resolved the recurring narrow_phase.rs native panic triggered by destroying constraint anchors.

• Create Compatibility: Fixed an issue where Create belts were indestructible; they now properly convey items and take damage.

• New Feature: Added Clipping Damage—blocks now sustain fatigue damage when clipping into terrain, eventually cracking and breaking the weaker material.

Fixes

• Added auto-protection for Sable constraint anchors to prevent world-breaking crashes.

• Fixed the enablePhysicalDestruction config toggle and presetMode = auto behavior.

• Improved TNT explosion handler to be more resilient across Sable versions.

• Clipping Damage Details

• Dynamically scans for intersecting blocks and damages the weaker one.

• Performance Optimized: Includes tick-budget caps and velocity thresholds to ensure zero impact on stationary structures.

• Configurable: New hot-reloadable keys in general config (enable/disable, scan speed, CPU budget, etc.).

Language Support

• Huge thanks to StarmanMine142 for adding the new Ukrainian translation! 🇺🇦

Initial public gamma preview of Sable: True Impact.

This version introduces experimental physics-based collision damage for Sable physical structures, including terrain impact damage, cumulative cracking, early structure fracture, entity impact damage, and configurable destruction/performance presets.

Main changes:

• Added terrain damage from high-force Sable structure impacts.
• Added cumulative block cracking before breakage.
• Added early Sable physical-structure fracture behavior.
• Added material-aware damage using hardness, blast resistance, toughness, brittleness, and related block properties.
• Improved large-surface terrain impact sampling compared with earlier beta builds.
• Reduced false fracture from static contact and resting structures.
• Added early Create-related anchor damage support for bearings, pulleys, gantries, minecart assemblers, tracks, and supports.
• Added early explosion impulse and explosion fracture behavior.
• Added configurable destruction and performance presets.

This is still an experimental preview build. Please back up your worlds before using it, especially in survival worlds or servers.