Sensors

A Sensor is a Hardmode mechanism that emits a signal under specific circumstances. Currently, there are 7 different types of sensors. There are 2 sub-categories of sensors. There are Logic Sensors, and there are Liquid Sensors.

There are 3 different Logic Sensors:
 * Logic Sensor(Day) which emits a signal when night turns to day.
 * Logic Sensor(Night) which emits a signal when day turns to night.
 * Logic Sensor(Player Above) which emits a signal when a player enters the area above it, and emits another when the player leaves the area above it.

There are 4 different Liquid Sensors:
 * Liquid Sensor(Water) which emits a signal when submerged in water, deactivates otherwise.
 * Liquid Sensor(Lava) which emits a signal when submerged in lava, deactivates otherwise.
 * Liquid Sensor(Honey) which emits a signal when submerged in honey, deactivates otherwise.
 * Liquid Sensor(Any) which emits a signal when submerged in any liquid, deactivates otherwise.

Player Above Sensor
It has a 5 blocks wide and 10 blocks tall detection zone. Their detection zone is actually about 1-2 pixels bigger than that.

When a player moves into the zone, it sends a signal. When a player exits the zone, it also sends a signal.

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