Codewire Trigger

Quickstart

1. Craft a Codewire Trigger using string, redstone, and a tripwire hook.
2. Place it on top of a block — it only attaches facing upward.
3. When you place it, you'll automatically receive an Access Tablet in your inventory. Hold onto this!
4. Walk near the trigger (without authorization) to watch it fire — it extends, pulses redstone power to nearby blocks, then retracts.
5. To set or change who's allowed near the trigger, equip your Access Tablet and use it on the trigger to open the code entry screen.

Overview

Codewire Trigger turns a simple crafted block into a smart, single-wire tripwire sensor. Unlike a normal tripwire, it doesn't need string strung across multiple blocks — it works as a standalone detector that watches the area around it and reacts to unauthorized entities passing by.

Each trigger can be locked with an access code. Players carrying a matching tablet can walk past freely, while anyone without the code (or without a tablet) will set it off.

What It Adds

• Codewire Trigger — a placeable redstone sensor block with two visual states: idle and triggered.
• Access Tablet — an item automatically given to you when you place a trigger, used to manage that trigger's access code.

How To Use

Placing the Trigger

• The Codewire Trigger can only be placed on the top face of a block (facing up), similar to a tripwire hook.
• Placing it registers it in the world and immediately gives the placer an Access Tablet linked to that specific trigger.

Triggering It

• The block continuously scans its surroundings for entities.
• If an entity without the correct access code enters range, the trigger fires: it plays an extending sound, switches to its "triggered" visual state (with a taller hitbox), and sends a burst of redstone power to adjacent blocks — perfect for powering doors, traps, or alarms.
• After a short pulse, it retracts on its own, plays a retracting sound, and resets to idle, ready to fire again.

Setting an Access Code

• Equip the Access Tablet tied to a specific trigger.
• Use the tablet on that trigger block to open a form where you can type in an access code.
• Entering a code locks the trigger so only players/entities carrying a tablet with the matching code can pass without setting it off.
• Leaving the code field blank clears the trigger's access requirement, letting it react to everyone again.
• Each tablet remembers the code it was set to, so you can carry multiple tablets for multiple triggers with different codes.

Breaking the Trigger

• Breaking the block drops a Codewire Trigger item, ready to be placed again elsewhere.

Crafting And Obtaining

Craft the Codewire Trigger at a crafting table using string, redstone dust, and a tripwire hook:

The Access Tablet cannot be crafted — it is only obtained automatically by placing a Codewire Trigger block.

Abilities And Mechanics

• Redstone Output: When triggered, the block pulses redstone power to neighboring blocks, then automatically stops after a short delay.
• Selection Box Changes: The trigger's hitbox grows taller while in its "triggered" state, reflecting the extended tripwire visual.
• Non-Solid: The trigger doesn't conduct redstone like a wire and has no collision — entities can walk over or through it freely.
• Persistent Registry: Each placed trigger keeps track of its own location, ID, and access code, even after the world is reloaded.

Progression And Strategy

• Use multiple Codewire Triggers around a base or hidden area as an early-warning system — anyone without the right access code passing nearby will set off redstone-powered alarms, lights, or traps.
• Distribute tablets with matching codes to trusted players so they can move through guarded zones without setting off alarms.
• Combine several triggers with different codes to create layered security zones, each requiring a specific tablet to pass safely.
• Because the trigger resets automatically after firing, it can be reused indefinitely as a recurring perimeter alert rather than a single-use trap.