Sensors

The ra_sensors module provides entity detection and tag mutation blocks.

• Namespace: ra_sensors
• Give all: /function ra_sensors:items/give_all
• Runtime architecture: How It Works

Block Summary

Block	Item model	Recipe	Trigger model	Property model
Entity Detector	minecraft:waxed_chiseled_copper		Continuous	entity_selector
Tag Adder	minecraft:green_glazed_terracotta		Rising edge	tag, entity_selector
Tag Remover	minecraft:red_glazed_terracotta		Rising edge	tag, entity_selector

Entity Detector

Entity Detector runs every tick and evaluates a configurable selector.

• Default selector at placement: @e[type=minecraft:pig,distance=..5]
• Uses macro dispatch through detect_macro.
• Output state is reflected by redstone shell swap (iron/redstone block shell logic).

Tag Adder

Tag Adder applies tags only when power rises from off to on.

• Tick includes ra_lib:redstone/detect.
• Rising edge condition: tag=ra.powered and tag=!ra.was_powered.
• Uses macro expansion for dynamic selector and tag values.

Tag Remover

Tag Remover also runs on rising edge.

• If data.properties.tag is empty or missing, it runs clear-all behavior for matched entities.
• Otherwise it removes only the configured tag.

Practical Use

• Build trigger zones by pairing Tag Adder and Tag Remover with plates or detector lines.
• Use Entity Detector for map events by setting selector strings directly.
• Keep selectors targeted to avoid expensive global scans.

Contributor Notes

1. Treat selector strings as user input: defensive checks prevent expensive scans.
2. Keep sensor operations edge-triggered when mutation is destructive (tag add/remove).
3. Expose editable fields through CDH and visible outputs through goggles when possible.

---