Sophisticated Building Update – 4.0.0

Supported versions

• Minecraft 1.21.1
• NeoForge (see gradle.properties neo_version in the NeoForge project)
• Fabric Loader + Fabric API (see Fabric project gradle.properties)

Artifacts

• sophisticatedbuilding-neoforge-<version>.jar — NeoForge
• sophisticatedbuilding-fabric-<version>.jar — Fabric

Major changes

Placement preview crash fix (compatibility)

• Fixed BlockPlaceContext.getPlayer() being null during client-side placement preview (MyPlaceContext previously passed null into BlockPlaceContext).
• Blocks whose getStateForPlacement assumes a non-null player (for example Create Simulated redstone magnet) could crash with NullPointerException when selecting those blocks in large builds.
• Change: MyPlaceContext now receives the real Player, and BlockEntry / BuilderChain pass it through for preview state resolution.

Radial build menu (Alt key)

• Fixed the radial menu treating the cursor as stuck at the screen center after opening (common when the OS/window warps the cursor when a Screen opens).
• Change: seed from the first frame’s GUI mouse position, then accumulate movement deltas in mouseMoved() so wedge highlighting tracks the pointer reliably.

Update recommendation

• Use 4.0.0 NeoForge and Fabric builds together if you maintain parallel loaders for the same Minecraft version.
• Re-test large-placement previews alongside mods that customize getStateForPlacement behavior.