Copper Eye

This is the Matcha Flavoured version of Target, renamed or changed from vanilla Minecraft.

Copper Eye

Type	Block
Replaces	Target
Stackable	Yes (64)
Resource location	minecraft:target
Defined in	target.json

A copper eye is a block that replaces the vanilla target. It works as a redstone target as in vanilla, and in the Abbey it is the trigger for the dungeon's mechanisms: shooting a copper eye opens a door, moves a copper grate or drops a hanging lantern.

Obtaining

Crafting

Name	Ingredients	Recipe
Copper Eye	4 × Stone Bricks + 4 × Copper Ingot + Electric Wire	4 matcha:crafting/target

Trading

Chance is the probability that a single chest, mob or catch yields at least one, assuming no Looting, Luck or Fortune.

Block drops

Source	Stack size	Chance	Notes
Target (blocks/target)	1	100%

Trading

Villager	Level	Price	Quantity
Engineer	Apprentice	Obol	64

Natural generation

Copper Eyes generate in every room of the Abbey, usually above an iron-bar door, beside a copper grate or above a hanging lantern.

Usage

Outside the Abbey, the copper eye behaves like a vanilla target block and emits a redstone signal when hit by a projectile.

Name	Ingredients	Recipe
Copper Eye Door	Command Block + Iron Bars + Copper Eye	Command Block.png: Inventory sprite for Command Block in Minecraft as shown in-game linking to Command Block with description: Command Block debug:copper_eye_door
Copper Eye Grate	Command Block + Waxed Copper Grate + Copper Eye	Command Block.png: Inventory sprite for Command Block in Minecraft as shown in-game linking to Command Block with description: Command Block debug:copper_eye_grate
Copper Eye Lantern	Command Block + Lantern + Copper Eye	Command Block.png: Inventory sprite for Command Block in Minecraft as shown in-game linking to Command Block with description: Command Block debug:copper_eye_lantern

Behavior

Abbey mechanisms

Each mechanism in the Abbey is an invisible marker entity placed inside a copper eye, tagged with the kind of mechanism it controls. The marker's facing sets the direction the mechanism works in.

When a player hits any copper eye (or target) with any projectile, the advancement matcha:mechanics/hit_copper_eye is granted and runs the copper eye check. The check does not run on a timer. The check:

1. Removes every mechanism whose copper eye has been broken. A lantern mechanism is also removed when its lantern is gone, and a retracting grate is also removed when any of the six copper grates around it is gone.
2. Runs the action of every mechanism whose copper eye is currently powered, which is the one just hit.
3. Revokes the advancement, so the next hit triggers it again.

Every action plays an enchanting table sound for the shooter, shows trial spawner detection particles and an iron golem hurt sound, and then removes the marker. Each mechanism works only once.

Mechanism	Marker tag	Effect when shot
Door	copper_eye_door	Removes all iron bars in a 3 × 2 × 3 area 2–3 blocks below the copper eye, opening the passage.
Lantern	copper_eye_lantern	Removes the lantern and chain hanging below the copper eye and drops a small fireball straight down from the lantern's position.
Grate	copper_eye_grate	Extends a 3 × 3 floor of copper grates forward from the copper eye, and moves the copper eye to the far end. Used to build bridges.
Vertical grate	copper_eye_grate_vertical	Pushes a 3-wide column of copper grates 2 blocks upward. Any player standing on the three grates is teleported 3 blocks up, and three wind charges are fired downward. Used as lifts.
Retracting grate	copper_eye_grate_horizontal_retract	Removes the 3 × 2 wall of grates at the copper eye and rebuilds a single row of grates 2 blocks back, with the copper eye in its center. Used to open walls.
Retracting vertical grate	copper_eye_grate_vertical_retract	The same as the retracting grate, but along the vertical axis, lowering a grate.

Grates placed by a mechanism are plain (unwaxed) copper grates, while the grates the Abbey generates with are waxed weathered copper grates.

Copper eye door, grate and lantern

Copper eye doors, copper eye grates and copper eye lanterns are developer items used to build Abbey rooms. They are spawn eggs that place a mechanism marker. Their recipes are in the debug namespace and require a Command Block, so they cannot be crafted in survival:

• Copper eye door: command block, iron bars and copper eye.
• Copper eye grate: command block, waxed copper grate and copper eye.
• Copper eye lantern: command block, lantern and copper eye. Its item name is written without spaces ("CopperEyeLantern").

A newly placed marker is set up the next time any copper eye is shot: it places a copper eye at its own position and, depending on its type, waxed weathered copper grates on either side (grates), or a chain and a hanging lantern below it (lanterns).

History

1.10 August 10, 2026	Added Copper Eye mechanisms with the Abbey.
1.12.1-alpha September 1, 2026	The Copper Eye texture now shows the eye closed after it is shot. The mechanism scan no longer runs every tick; it runs through the hit_copper_eye advancement.

Trivia

• The developer cited the copper eye system as a model for the pack's code: using an advancement triggered by shooting a target, instead of a function that runs every tick.