Small Mob Repeller
alaindustrial:mob_repeller
Summary
The Mob Repeller is a guard block: while it is wired to the grid and its field is on, hostile mobs flee the zone around it — the way a creeper runs from a cat — and cannot approach your base. Passive animals, villagers and players are untouched; neutral mobs (enderman, zombified piglin) are expelled only when already angry.
This is the first tier: an 8-block radius in every direction (a cube). The block upgrades — insert a full Soul Vessel into its slot and the repeller grows into the Medium Repeller with a 16-block radius.
Quick example: place a repeller by your door and run an LV cable from a Battery Box — at night creepers no longer hug the walls and skeletons stop sniping from the porch. You still need torches against spawns inside the zone: the field drives mobs out, it does not stop them from appearing.
Energy
A pure LV consumer. The field is an upkeep cost: while enabled it drains 8 EU/FE/t whether or not any mobs are near. Run out of energy and the field goes dark — mobs can approach again.
| What | Value |
|---|---|
| Internal buffer | 2,000 EU/FE |
| Field upkeep | 8 EU/FE/t (constant while enabled) |
| Input | up to 32 EU/FE/t (LV) |
Energy is accepted through all six faces.
Field behaviour
Twice a second the block sweeps its zone and expels actively hostile mobs:
| Who | What happens |
|---|---|
| Regular monsters (zombies, skeletons, creepers, spiders…) | Turn and run past the boundary |
| Piglins and hoglins | Fear the block natively (like soul torches) — even slightly beyond the field |
| Fliers (phantom, ghast, vex) and slimes | Are pushed out |
| Enderman (angered) | Teleports away |
| Enderman (calm), zombified piglin (calm) | Left alone — until provoked |
| Shulker | Not expelled (anchored to its block) — the single exception |
| Passive mobs, villagers, players | Unaffected |
The zone is a 17×17×17 cube (radius 8 in every direction), matching the highlight dome.
Interface
Right-click opens the screen: energy level, the Soul Vessel slot and the dome button — it shows the zone boundary in the world to you personally (a translucent cube with a wireframe). Other players do not see your dome. The button is a toggle; the dome clears itself if the block is removed.
Any Soul Vessel fits the slot, even an empty one: the line under it says how many souls are still missing. Once 80 are in, the block consumes the vessel whole on the next tick and becomes a Medium Repeller, keeping its stored energy. Souls beyond the threshold burn with the vessel — don't overcharge it.
Redstone. A signal on the block (a lever, a button, a comparator) switches the field off: it goes dark and stops drawing power. Remove the signal and it runs again.
Block properties
A full machine-casing block with silver trim and a soul emitter on top. While working, the emitter glows teal (light level 14 — a torch).
| What | Value |
|---|---|
| Shape | full block |
| Tool | pickaxe |
| Glow | 14 while the field is active (vanilla torch) |
Progression
| Tier | Radius | Upkeep | How to get |
|---|---|---|---|
| Small (this block) | 8 | 8 EU/FE/t | Crafting |
| Medium | 16 | 32 EU/FE/t | Soul Vessel (80 souls) into the small one |
| Large | 24 | 64 EU/FE/t | Soul Vessel (250 souls) into the medium one |
Recipes
Crafting table 3×3: 4 silver plates in the corners, a soul lantern on top, an advanced circuit at the bottom, 2 copper coils on the sides, and an advanced machine casing in the centre.
[Silver Plate] [Soul Lantern] [Silver Plate]
[Copper Coil] [Advanced Machine Casing] [Copper Coil]
[Silver Plate] [Advanced Circuit] [Silver Plate]The medium and large versions cannot be crafted — they are grown with the Soul Vessel only.
Crafting
Shaped Crafting
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Small Mob Repeller