Master Control

Quickstart

1. Craft a Master Control block at a crafting table:

1. Face the direction you want it to "look", then place the block. It remembers the direction you were facing when placed.
2. Left-click the block to open its configuration UI.
3. Pick a Detection Target (e.g. Hostile Mob), a Detection Radius, and at least one Output Action (e.g. Play Sound).
4. Set the trigger to Continuous and press Activate. The block will emit a faint particle glow and begin scanning.

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Overview

Master Control is a smart detection block that watches the area around it for entities or conditions you specify. When its trigger conditions are met it fires one or more configurable output actions — playing a sound, spawning particles, sending a chat message, or placing a redstone block in front of it. Everything is configured through a button-based in-game UI; no commands required.

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What It Adds

The block has a faint light level (2) and emits ambient particles while active, so you can tell at a glance whether it is running.

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How To Use

Placing the Block

Place the block while facing the direction you want it to treat as "forward." That facing is stored and used for the Redstone output (see below).

Opening the UI

Left-click the placed block at any time to open the configuration menu. Changes take effect immediately when you close the UI.

Activating and Deactivating

The UI contains an Activate / Deactivate toggle. While active the block ticks constantly, scanning for its configured target. Breaking the block or deactivating it cleans up any redstone output it placed.

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Abilities And Mechanics

Detection Modes

Detection Targets

Choose what the block scans for: Hostile Mob, Player, Animal, Villager, Item on Ground, or Any Entity.

Detection Radius

Select a scanning radius of 2, 5, 10, or 20 blocks.

Trigger Behaviour

Output Actions

One or more outputs can be enabled at the same time:

Alert Sound Selection

When Play Sound is enabled you can choose from ten sounds: Master Control Alert, Bell, Pling, Harp, Orb, Level Up, Wither Death, Explosion, Blaze Hit, or Anvil Use.

Player Health Trigger (Optional)

An optional health gate can be set so outputs only fire when the nearest detected player is below a health threshold: Below 25%, Below 50%, Below 75%, or No Health Trigger (always fires).

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Progression And Strategy

• Early alarm system: Place a Master Control facing a doorway, set target to Hostile Mob, radius 10, mode Detection with Alert, trigger Continuous, and output Play Sound. You will hear an alarm any time a mob enters the area.
• Redstone integration: Point the block toward your redstone circuit before placing. The Redstone Pulse output places and removes a redstone block in the exact block space in front of it, giving you a clean on/off signal without flickering — ideal for powering doors, traps, or lighting.
• One-Shot traps: Use One-Shot with a short cooldown and the Redstone Pulse output to briefly activate a mechanism (e.g. a dispenser) each time a player enters the detection zone, then reset automatically.
• Inverted mode sentinels: Use Inverted mode to trigger an alarm when a target you expect to be present (like a villager or a farm animal) is suddenly missing from the monitored area.
• Combine outputs: Stack Play Sound + Send Chat Message + Spawn Particle Effect together for highly visible, audible, and logged alerts — useful for multiplayer security setups.