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CC-Tweaked/doc/events/redstone.md
Jonathan Coates 53811f8169
Allow peripherals to have multiple types (#963)
Peripherals can now have multiple types:
 - A single primary type. This is the same as the current idea of a
   type - some identifier which (mostly) uniquely identifies this kind
   of peripheral. For instance, "speaker" or "minecraft:chest".

 - 0 or more "additional" types. These are more like traits, and
   describe what other behaviour the peripheral has - is it an
   inventory? Does it supply additional peripherals (like a wired
   modem)?.

This is mostly intended for the generic peripheral system, but it might
prove useful elsewhere too - we'll have to see!

 - peripheral.getType (and modem.getTypeRemote) now returns 1 or more
   values, rather than exactly one.
 - Add a new peripheral.hasType (and modem.hasTypeRemote) function which
   determines if a peripheral has the given type (primary or
   additional).
 - Change peripheral.find and all internal peripheral methods to use
   peripheral.hasType instead.
 - Update the peripherals program to show all types

This effectively allows you to do things like
`peripheral.find("inventory")` to find all inventories.

This also rewrites the introduction to the peripheral API, hopefully
making it a little more useful.
2021-11-29 17:37:30 +00:00

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Markdown

---
module: [kind=event] redstone
---
The @{event!redstone} event is fired whenever any redstone inputs on the computer change.
## Example
Prints a message when a redstone input changes:
```lua
while true do
os.pullEvent("redstone")
print("A redstone input has changed!")
end
```