Auto Splitter Block

A Factorio 2.0 MOD that automatically sets splitter output filters to block the unused side when only one output has a compatible transport entity.

Features

• When a splitter has a transport entity on only one output side, the other side is automatically blocked using an output filter.
• The filter is cleared when both outputs become occupied or both become empty.
• Responds to placement and removal by players, robots, and space platforms.
• Splitters with user-configured filters or connected to circuit networks are left untouched.

Block Filter Item

The item used for blocking is configurable in MOD settings (startup).

• Default: Deconstruction planner
• With Null Item installed: Null item (default)

Compatible Transport Entities

• Transport belts (same direction or sideloading, but not opposite)
• Underground belts (same rules as transport belts)
• Splitters (same direction only)
• Loaders (same direction only)

All tiers are supported.