Block Physics

A block that loses its support can fall, and the system checks the neighbors of a block whenever an event changes its position. Blocks break when the player breaks one, when a player places one, when fire reaches it or when an explosion destroys its neighbors, and the physics update then reaches the blocks near it. Some blocks search for supports upward instead of downward, which changes how structures hang.

Support is searched along eight vectors in the x-z plane, and the reach of that search can be raised so a long block can be supported within its own reach in a chosen direction. Blocks that carry the sticky tag, such as fences, walls, chains and iron bars, behave differently, and blocks with a slipperiness value above 0.6, including those tagged as liquids like lava and water, follow their own rules. The author describes the system as an alternative to the scaffolding blocks of Enviromine, and it is aimed at builders who want skylights and frames that behave like real architecture.

The mod is Fabric-only and works on the server alone, so players join without installing it. Files exist for 1.16 – 1.16.5 under a custom license that is not open source, and the latest build is v1.3 for 1.16.5, published on 2021-02-17.