Sable Mob Interactions 1.1.0

Mobs can now spawn driving custom vehicles. This is the biggest update so far.

Requirements

• Minecraft 1.21.1 with NeoForge
• Create and Sable
• SableCat 1.0.3 or newer (required)
• Simulated, Create Connected and Offroad (needed by the built-in car)

What's new

Mob-driven vehicles

• Vehicles spawn as physics sub-levels with a mob in the driver's seat.
• Pilots drive with the new Mob Transmitter block and can wander, chase and circle players, avoid obstacles and players, and reverse out of jams.
• Pilots respawn if you leave the area or reload the world.
• Cars calibrate their own steering and throttle direction, so most builds drive correctly without setup.
• Each tier has its own max_speed.

Spawn nodes

• Each tier has a node: a road structure that spawns cars nearby.
• Nodes sit on a levelled pad with tapered edges, so they stay clear of trees and hills.
• The pad matches its surroundings: sandstone and sand in deserts, packed mud, red sand and terracotta in badlands, snow in snowy biomes, gravel and stone on stony shores, and dirt and grass everywhere else.
• Nodes only generate in open biomes (plains, desert, savanna, badlands and similar). The list is a biome tag you can edit: sablemobinteractions:vehicle_node_biomes.
• Nodes follow each tier's ring (min_radius and max_radius), and are skipped on steep terrain and near water.
• Nodes fill with cars much faster than before, and cars are placed only on flat, clear ground and no longer spawn inside each other.
• /place structure now works for nodes. It ignores the biome, ring, flatness and sea level checks, so you can place one anywhere for testing.

Custom cars

• Put your own .nbt car files in saves/<world>/vehicles/<tier>, for example saves/<world>/vehicles/tier_1_scrap.
• They join that tier's pool and are rescanned as files change.
• The built-in car is copied into the tier 1 folder the first time a world needs it. Delete it from that folder if you don't want it in your pool.
• If a tier's folder is empty, the built-in car is installed again so the tier always has something to spawn.

New driving goals

• avoid_water: steers away from deep water and lava.
• avoid_cliffs: steers away from large drops.
• slow_turn: slows down before sharp turns so cars are less likely to flip.
• stay_upright: reduces speed when tilted, and rights a car that has flipped over and stopped.
• Chase and wander now interrupt each other properly.

Commands

• /sablemobinteractions vehicles
• /sablemobinteractions customcars
• /sablemobinteractions clearvehicles
• /sablemobinteractions debugdrive <true|false>

clearvehicles removes only cars spawned by the mod, never vehicles built by players. It needs SableCat.

Fixed

• Cars driving in a straight line while the wheels wiggle.
• Steering flipping direction on cars that drive with the throttle reversed.
• Pilots that never respawned after leaving the area.
• Cars spawning on cliffs, on tree canopies and inside trees.
• Long waits before a node filled with cars.
• A lot of log spam, which now only appears with debug logging on.

Upgrading

• Nodes only appear in newly generated chunks. Existing worlds will see them as they explore.
• If you have your own tier JSON files, add the new goals before unstick: avoid_water, avoid_cliffs, slow_turn, stay_upright.
• If your tier JSON lists the built-in car under structures, set it to [] so it doesn't get picked twice.
• Custom cars live in each world's vehicles folder. They are not copied between worlds automatically.
• Several old test commands were removed.