This replaces the existing IMount openFor* method with openChannelFor*
ones, which return an appropriate byte channel instead.
As channels are not correctly closed when GCed, we introduce a
FileSystemWrapper. We store a weak reference to this, and when it is
GCed or the file closed, we will remove it from our "open file" set and
ensure any underlying buffers are closed.
While this change may seem a little odd, it does introduce some
benefits:
- We can replace JarMount with a more general FileSystemMount. This
does assume a read-only file system, but could technically be used
for other sources.
- Add support for seekable (binary) handles. We can now look for
instances of SeekableByteChannel and dynamically add it. This works
for all binary filesystem and HTTP streams.
- Rewrite the io library to more accurately emulate PUC Lua's
implementation. We do not correctly implement some elements (most
noticably "*n", but it's a definite improvement.
This crash can be triggered remotely by specially constructed rednet messages, making this a bit of a problem, as any repeaters can be remotely crashed.
A lot of these don't actually have any effect as they'll only be called
on the main thread or they are getters where the state is guaranteed to
be consistent whenever it is accessed.
Hopefully this'll reduce the chance of world updates being blocked by
waiting for peripheral locks to be released.
- Make window.reposition's argument validation a little more strict.
Previously it would accept `window.reposition(x, y, width)` (no
height argument), just not act upon it.
- Use select instead of table.unpack within `pastebin run`.
- Use `parallel.waitForAny` instead of `waitForAll` within the dance
program.
- Pipe the entire help file into `textutils.pagedPrint`, rather than
doing it line by line.
- Remove bytecode loading disabling from bios.lua. This never worked
correctly, and serves little purpose as LuaJ is not vulnerable to
such exploits.
- Bump MinecraftForge version so we don't crash on load. Oh boy, all
the deprecation warnings.
- Inject IBundledEmitter and IBundledReceiver capabilities onto all
TileGenerics.
- Register a IBundledRedstoneProvider instance for IBundledEmitter.
This is a preliminary for updating to 1.13, as many of the name changes
apply to both. This will make it harder to remain consistent with
actual CC, though that will be less of a consideration when 1.13 hits.
When placing a sign against a tile entity (such as a turtle or chest),
we would consider that block the "placed" one instead, meaning the text
was never set. This solution isn't entirely ideal either, but short of
capturing block snapshots I'm not sure of a better solution.
Fixes#552
Effectively shift extracting the computer away from Plethora into CC:T.
Ideally we wouldn't need this at all, but Plethora does some funky
things with tick timings.
See SquidDev-CC/plethora#125
Player construction can get a little expensive, and this is exacerbated
by Sponge. We now cache a turtle's fake player (updating the position
every time it is requested) in order to reduce this overhead.
- The current page is always centred when rendering in a GUI, with
the turned pages moving from the sides.
- Pages are no longer evenly distributed from the centre - they follow
an exponential decay curve, so ones further out are closer together
(a bit like an open book).
- Render pages and books in item frames/in-hand (rather than just
single pages).
This currently does some very dirty things with z values in order to
prevent z-fighting. It would be nice to avoid that, though turning off
writing to the z buffer causes issues with the bounding box.
- Try to make drop capturing a little more generic. This now allows for
capturing a block's drop at a given position, as well as any drop
within a bounding box (for things which don't play nicely).
- Use as much of Minecraft's block breaking logic as possible,
hopefully simplifying things and making it more consistent with other
mods.
As we only send the terminal to players using the GUI, the map interface
was never updated. We now will also send the terminal state to whoever
has the computer in their inventory.
This also marks the terminal as dirty when a new player picks the pocket
computer up, hopefully preventing any desync issues which might occur
then.
Fixes#42.
- Fix text table only showing the first row (fixes#40)
- Do not emit alignment characters in monospace environments
- Reduce padding in monospace environments
Also make the output of dump consistent with that of the profiler: we
provide tp and view shortcuts for each computer.
- Slight airbrush effect for normal turtles. While this is only really
visible when upping the contrast, it's probably nice to fix.
- A few off-colour pixels for advanced turtles
This uses a custom ComputerCraft packet to send chat messages to the
client. When received, we delete all messages of the same category
before sending the new ones.
This avoids cluttering the chat with near-identical messages, and helps
make working with the "individual dump" command easier, as the previous
computer's dump output is deleted.
Also change the max height of the TextTable to 18, so it fits within
Minecraft's default chat limit.
This implements an argument format similar to LuaReqeust, as described
in dan200/ComputerCraft#515. The Lua argument checking code is a little
verbose and repetitive, but I'm not sure how to avoid that - we should
look into improving it in the future.
Closes#21
- fixed circumflex typo: you can now cîrcûmflêx on all your friends
- added comment making it clearer that the following lines are intended for backwards compatibility.
Whilst the legacy ones are important for backwards compatibility, they
cannot have an ID of 0, which introduces issues when they are the first
disk created in the world.
This allows us to track how much work various peripherals are doing.
This will not work with all systems, such as Plethora, as that has its
own execution system.
The limit was added to prevent people creating arbitrarily large buffers
(for instance, handle.read(2^31) would create a 2GB char array). For
"large" counts, we now read in blocks of size 8192, adding to an
extendable buffer.
- Add additional maven metadata and strip dependencies
- Shift ICommand registration into the proxy, to avoid class loading
issues. This is probably rather temperamental, but classloading
always is.
- Trackers are created per-user, meaning multiple people can run
/computercraft track at once.
- Allow sorting the tracking information by arbitrary fields.
- Add support for tracking arbitrary fields (though none are currently
implemented).
- Abstract peripheral ID and type checking into separate class
- Update peripherals directly rather than marking as invalid then
fetching from the network.
- Update peripherals when adjacent tiles change
This does result in a slightly more ugly interface, but reduces the
amount of work needed to perform partial updates of peripherals, such as
those done by neighbouring tile updates.
Forge's default fake player implementation doesn't override all methods
which use the connection. As it is not set, we get an NPE and thus crash
the server. We simply stub those methods out ourselves to prevent such
an issue.
When initially attaching a modem, the adjacent computer would not show
up on its own peripheral list (like in vanilla CC). However, it would
show up when the chunk was reloaded as peripherals were added through a
different method.
This prevents such behaviour, always hiding the remote peripheral from
the object which provides it.
Closes#20
Shaders appear to ignore all the other subtle (and not-so-subtle) hints
we drop that monitors shouldn't be rendered with shadows. This solution
isn't optimal, as monitors may still be tinted due to sunlight, but
there is nothing we can do about that.
Many thanks to ferreusveritas for their help in diagnosing, fixing and
testing this issue.
Shader mods may perform multiple passes when rendering a tile, so
monitors will be drawn transparently on later passes. In order to
prevent this we allow drawing the a single tile multiple times in a
tick.
The two recipes are pretty similar, so this allows us to substantially
simplify the code. This now introduces the additional requirement that
computers must be used to create turtles, rather than pocket computers
or another turtle.
This adds IComputerItem.withFamily(ItemStack, ComputerFamily) as well as
a ComputerFamilyRecipe class. Each type of computer (normal, turtle,
pocket) defines a recipe using this class, as they require a different
number of gold ingots to upgrade.
These act similarly to conventional wired modems, but with the advantage
that they are a full block. This means they can be attached to
peripherals which are not solid (such as chests). Further more, as they
do not have a direction, they allow wrapping peripherals on all 6 sides.
It's worth noting that wired modems do not require a cable - they will
automatically form connections to adjacent network elements when placed.
There are several important things to note here:
- The network element is associated with the cable, whilst the
peripheral (and so packet sender/receiver) is associated with the
modem. This allows us to have the main element be in the centre of
the cable block, whilst the modem is in the centre of the adjacent
computer.
- Cables will connect to any adjacent network element, not just
other cables.
- Rednet messages are now sent on the computer thread, rather than the
cable tick.
The API is composed of three primary classes:
- IWiredElement: Represents some physical entity in the network. This
will generally be a block (such as a cable or modem), but it is not
required to be.
Each element can provide a series of peripherals, which will be
exposed to other elements on the network.
- IWiredNode: Every wired element has a unique wired node. This acts
as a thread-safe proxy for communicating with the rest of the
network (such as sending packets). Each node is also its own packet
network.
- IWiredNetwork: This is responsible for keeping track of nodes and
peripherals in the network. It provides methods for forming and
breaking connections, correctly joining and splitting networks where
needed.
Tiles which wish to be part of a wired network should implement
IWiredElementTile or register a custom IWiredProvider. When loaded into
the world, it should connect to adjacent nodes. Similarly, when removed
(either due to being broken or chunk unloads), it should break those
connections.
There is no method to query the layout of the network, as that offers
greater flexibility in changing or extending the implementation later
on.
This provides a mechanism for peripherals to see what else a computer is
connected to - and then interact with those peripherals.
We also add the ability to query what block or tile a peripheral
targets. This allows one to interact with the original block of adjacent
peripherals instead.
Mostly intended for those people who don't like .inspect() or
.getItemDetail(), but could allow modpacks to block equipping upgrades,
placing blocks, etc...
The main aim of this is to allow for greater extensibility for other
mods. For instance, you can now prevent turtles placing dirt blocks, or
turning when on gravel.
As of #458, BlockPeripheral will act as a full/opaque block for some
peripherals and a transparent one for others. However, some Block
methods use the default state rather than the current one. This means
modems report being a full block when they are not, leading to
suffocating entities and lighting glitches.
As of #458, BlockPeripheral will act as a full/opaque block for some
peripherals and a transparent one for others. However, some Block
methods use the default state rather than the current one. This means
modems report being a full block when they are not, leading to
suffocating entities and lighting glitches.
This restructures monitor in order to make it thread-safe: namely
removing any world interaction from the computer thread.
Instead of each monitor having their own terminal, resize flag, etc...
we use a monitor "multiblock" object. This is constructed on the origin
monitor and propagated to other monitors when required.
We attempt to construct the multiblock object (and so the corresponding
terminal) as lazily as posible. Consequently, we only create the
terminal when fetching the peripheral (not when attaching, as that is
done on the computer thread).
If a monitor is resized (say due to placing/breaking a monitor) then we
will invalidate all references to the multiblock object, construct a new
one if required, and propagate it to all component monitors.
This commit also fixes several instances of glLists not being deleted
after use. It is not a comprehensive fix, but that is outside the scope
of this commit.
- Ensure usage is consistent
- Allow computer selectors to return multiple values
- Fix commands being marked as usable when it isn't
- Add /computercraft turn-on, a counter to /computercraft shutdown
As tiles outside the world border are not ticked, turtles are rendered
entirely useless. Furthermore, the turtle animation will never progress
resulting in visual glitches.
In order to avoid this, we ensure the target position is within the
world border when moving to it.
When a player places a turtle, they are marked as its owner. Any actions
they perform (such as breaking blocks, moving, etc...) are performed
using this player's game profile.
This allows turtles to work correctly with various permissions mods.
Previously you would have to whitelist all turtles in order for them to
function within a claim.
This means one can call .getFamily() in a thread-safe manner, ensuring
turtle.getFuelLimit() does not cause issues. As we use a specialist
TE class for each family this does not require any specialist caching.
This adds several commands which may be useful for server owners. It'd
be nice to integrate this into ComputerCraft itself, but the associated
command framework is quite large so we'd have to think about it.
This migrates TurtleMultiModel's current vertex transformation system
into something more powerful and "correct". Namely, it has the following
improvements:
- Handles all position formats (float, byte, etc...)
- Correctly translates normals of quads
- Reorders faces if the winding order is reversed
ILuaAPI has been moved to dan200.computercraft.api.lua. One creates
a new API by registering an instance of ILuaAPIFactory. This takes an
instance of IComputerSystem and returns such an API.
IComputerSystem is an extension of IComputerAccess, with methods to
access additional information about the the computer, such as its label
and filesystem.
- ComputerThread constructs multiple threads instead of just one,
depending on a config options.
- The synchronized blocks of PeripheralAPI.PeripheralWrapper have been
shifted a little to ensure no deadlocks occur.
Whilst I'm pretty sure this is safe for general use, I'm disabling this
by default for now. I may consider enabling it in the future if no
issues are found.
This uses Netty's websocket functionality, meaning we do not have to
depend on another library.
As websockets do not fit neatly into the standard polling socket model,
the API is significantly more event based than CCTweaks's. One uses
http.websocket to connect, which will wait until a connection is
established and then returns the connection object (an async variant is
available).
Once you have a websocket object, you can use .send(msg) to transmit a
message. Incoming messages will fire a "websocket_message" event, with
the URL and content as arguments. A convenience method (.receive())
exists to aid waiting for valid messages.
- Ensure pocket computers and turtles are distinguished by upgrades and
computer family.
- Ensure disks are distinguished by colour.
- Hide treasure disks from the list
This splits the computer state (blinking, label, etc...) and terminal
state into two separate packets. When a computer changes, the computer
state is sent to all players and the terminal state is sent to players
who are curerntly using the computer.
This reduces network usage by a substantial amount.
When printing on top of an already printed page, the previous contents
should be preserved. However, this did not occur as the stack had been
shrunk and so the item was no longer considered a printout.
ClosesSquidDev-CC/ComputerCraft#2
- Cable and modem can be broken individually
- Ray tracing will go through "holes" in the cable.
- Pick block will determine which part you are looking at.
- Selection box will only highlight the region you are looking at:
modem or cable.
We know turtle can't be null in any of these places, since in preceding code,
we called methods on it, so we would have gotten a NullPointerException then
and never gotten here if it were null.
This meant one could perform various illogical actions to
non-full-blocks, such as connecting fences and placing paitings.
We also modify the behaviour of isOpaqueCube and isFullCube for
peripherals, only returning false for the case of modems and cables.
if you call write(nil), you will get the error "bios.lua:229: bad argument: string expected, got nil", so nil is not a valid argument for write() and should be removed.
Breaking a disk drive was not stopping the record being played as the
block event never reached the client. Instead, we send a custom packet
which starts/stops music at a given location.
We also remove all the plumbing for eventReceived/sendBlockEvent from
the generic block/tile classes, as they are no longer used.
Closes#443
This makes a couple of significant changes to the original system, to
reduce the number of threads created and allow for multiple threads in
the future. There are several notable changes from the original
implementation:
- A blocking queue is used for the main task queue queue. This removes
the need for the "monitor" variable and allows for multiple threads
polling this queue in the future.
- The thread used to execute tasks is "cached" between tasks,
significantly reducing the number of threads which need to be
created. If a task needs to be stopped then the thread is then
terminated and a new one constructed, though this rarely happens.
While adding checks to the io API in #424, I had forgot that the io API has his own type() function who overwrite the default one. This PR fix this. Sorry for that.
- Path containing '/' or '\' are resolved relative to the current
directory, rather than using the path. Paths starting with '/' still
resolve relative to the root directory.
- Shell completion will also include sub-directories of the current
directory.
Closes#219
Changes all equal or longer then 3 multidots setups to be treated as .
This removes other potentialy dangerus situations and brings it closer to windows in how it treats said dots.
If fs.open() failed, it will return nil and a a error message like "No such file" or "Out of space". This PR make, that io.open() returned this error too.
- Convert most recipes to JSON
- Add JSON factories for impostor and turtle recipes.
- Several mappings changes
- Migrate to Forge's new registry system
While the check (most likely) wouldn't break anything, it's better to fix it and not worry then to not fix it and find out it breaks image loading. Also fixes how files are loaded.
- textutils.serializeJSON now takes a table/string/number/boolean instead of just a string as the t argument, and checks for nil in the tNBTStyle argument, so the parameter becomes optional again, as described in the wiki.
- textutils.slowWrite and textutils.slowPrint now checks if the rate
parameter is a number, if not nil.
Computer now delegates to IComputerEnvironment which, by default, looks
in the following locations:
- Resouce pack files
- The "debug" folder
- The original ComputerCraft jar
- Adds a 1px margin around every glyph. This is generally empty,
with the exception of teletext characters where it continues their
pattern.
- Uses GL_CLAMP with the font texture.
Closes#300
edit currently deletes the previous 4 spaces when pressing backspace,
wherever you are on the line. This can be frustrating when you are
trying to align text in comments or strings.
This changes edit to only delete 4 spaces if all preceding characters
are whitespace, otherwise it only deletes a single character.
Attempting to use pastebin with plain HTTP results in a 301 redirect to the HTTPS version. This PR (and associated commit) makes the pastebin command work again.
Reduces amount of string operations and write calls inside writeHighlighted function by switching it to blit and using the 3rd argument in string.match.
Remove drawPixelInternal / drawLineHorizontal. At runtime they're both just excess calls.
Localise high-use term functions.
Arg-related function errors reflect that "colour" parameter is optional.
Add saveImage(tImage, sPath).
Use term.blit for images.
In no particular order:
bios.lua - added missing test for ensure turtle folder exists.
paintutils.lua - added drawLineHorizontal() to reduce most (not all) cases of running multiple writes on same horizontal line that can be solved with one write.
textutils.lua - Added exception to complete function - will not complete if provided with LuaKeyword - solves do->dofile problem and removes other LuaKeyword related ones in advance.
edit.lua - Changed logic in handling the paste event - if paste event is received when menu is open it automatically closed said menu and lets it paste - resolves ctrl+ctrl+v annoyance. Added Jump to Menu functions - allows for fast jump to needed line - must for bigger files and a nice feature to have.
set.lua - Switched set to use pagedPrint - this will ensure that even if there are more settings than lines on screen the set command will show you all of them.
startup.lua - Added autocompletition for turtle programs go, turn, equip, unequip and command program exec.
lua.lua - Changed return function to print returned stuff correctly -
will print all returned variables even if there are any nils in there.
This makes use of new pocket computer light access peripherals have and adds said functionality to speaker. If noisy pocket has made sound the pocket computer light will turn dark blue for a second.
- Adds support for blacklisting domains
- Adds support for blacklisting & whitelisting IP addresses and
IP ranges.
- Reuse threads for HTTP requests
AddressPredicate will parse a series of patterns and convert them into
regexes or CIDR ranges. When checking whether an address is accessible,
we first ensure the domain is whitelisted and isn't blacklisted.
If everything is OK, then we start create a new thread for the HTTP
request and resolve the IP, ensuring that is whitelisted & not
blacklisted. Then the normal HTTP request is continued.
However, http.checkURL also needs to resolve the IP address. In order to
avoid blocking the Lua thread, this method will return instantly and
create a new thread which will queue an event.
As both http.request and http.checkURL are now creating threads and
queuing events, some logic is abstracted into a separate HTTPTask class
- this allows us to share the thread creation, finishing and cancelling
logic.
This uses a new utility class ArgumentHelper, which provides convenience
methods for parsing arguments from an array of Objects.
The format of error messages has also changed. It now follows a format
similar to Lua's native error messages - including the invalid argument
index, the expected type and the type actually received.
I fixed 2 Bugs:
1. If you call this function, without 2 numbers, you get a error in the window API and not in your Program
2. If you call, this function with 2 numbers lower then 1 (e.g. term.setCursorPos(0,0) ), CraftOS will hang forever and need to press Ctrl+R or rejoin the world.
- BlockEvent.BreakEvent and BlockEvent.HarvestDropsEvent are fired when
digging.
- AttackEntityEvent is fired when attacking.
- Various PlayerInteractEvent.* events are fired when placing.
Closes#103, closes#100
Printers use a Terminal to store the page currently being printed.
Printers saved in an older version of ComputerCraft would be missing the
term_palette field, resulting in an NPE when loading the tile.
"shell" now runs each program in a new lua environment, instead of
sharing that lua environment between all programs launched under a one
shell. Said environment now includes an implemenation of "require" and
the "package" API, so that programs can require modules into that
environment.
This means that programs can require in libraries without polluting the
global namespace, and without breaking the virtual computer model, as
each program has it's own set of requires, which are discarded when the
program ends.
As the raw stream was being provided to the parent class, buffered data
was not written, resulting in empty files. This ensures the buffered
reader/writer is the one which is closed.
As a new SoundEvent was being created each time, the actual sound was
not in the registry, resulting in the sound -> id mapping yielding
incorrect values.
This will hopefully make it easier to track down various issues which
might otherwise go unnoticed or provide little information.
The main areas modified are those that external APIs may provide values
for or interact with: various providers and ILuaObject/IPeripheral
implementations. However, we do also log in a couple of other places
which indicate a problem with this, or another, mod.
This adds a common ILogger interface and two built-in loggers - one
which prints to stdout, the other using a Log4J logger. These are split
up as not to cause dependency issues for emulators.
The stdout logger is enabled by default, but the ComputerCraft mod class
will swap over to using FML's mod specific logger, which provides a more
consistent look with the rest of Minecraft.
There was a very small gap between the turtle frame and the top of the
turtle body. This increases the height of the body by one pixel, adding
a little bit of overlap and ensuring the frame renders on top fixes
this issue.
- Makes ITurtleItem implement IColourableItem
- Only cache one turtle item model for all colours, rather than one for
each colour.
- Allow ITurtleAccess to set an arbitrary colour.
This allows for other items, such as turtles, to be dyed in the future.
This also adds support for the ore dictionary, meaning you can use other
mod's dyes to colour items.
- Move the encoding/decoding from the Filesystem implementation to the
individual handles.
- Move each handle into an core.apis.handles package from the main fs
API.
- Move the HTTP response to inherit from these handles.
- Allow binary handles' read function to accept a number, specifying
how many characters to read - these will be returned as a Lua string.
- Add readAll to binary handles
- Allow binary handles' write function to accept a string which is
decoded into the individual bytes.
- Add "binary" argument to http.request and friends in order to return
a binary handle.
- Ensure file handles are open when reading from/writing to them.
- Return the error message when opening a file fails.
This provides a publically accessible way of interacting with wireless
networks, hopefully extending to wired networks in the future.
Unlike the original INetwork/IReceiver system, networked devices listen
on all channels, filtering when they recieve the packet. This allows
other peripheral mods to be more flexible in their packet handling.
This makes block/model names a little mode consistent and should help
with porting to 1.11.2.
- Prefix all tile entities with "computercraft:".
- Change all "pascalCase" and "CC-*" items to use underscore_case
- Listen to the missing mappings event and gracefully convert
blocks/items.
- Make InventoryUtil deal with item handlers instead. This
significantly simplifies the implementation, the interface now
does most of the hard work.
- Add InvWrapper item handlers to printers, disk drives and turtles
- Add IItemHandlerModifiable accessor to ITurtleAccess
- Migrate all other inventory code (mostly turtle commands) to use
item handlers instead.
- Lower case all model and texture names
- Move model registration code into preInit - this ensures we don't
get texture/model errors in the preInit stage.
Awfully sorry about this. It appears that Minecraft's annotations are
occasionally wrong. IntelliJ will automatically add "not-null" checks on
these annotations, resulting in crashes when they are actually null.
- General improvements of the docs.
- Move all ItemStack code to the ItemPocketComputer class
- Make PocketAPI execute on the server thread, rather than the computer
thread
There was a crash in RedstoneUtil when redstone state was changing next
to a full block due to the incorrect state being passed. By using
IBlockState methods we ensure that this cannot happen again.
The old IBlockState methods were also deprecated, so this reduces the
warning count a little. I've also moved string translation into
StringUtils, to reduce the number of deprecation warnings from there.
This uses Minecraft's colour tinting system in order to change the
colour of turtle models. This removes the need to have 16 models and
textures for each colour, reducing texture atlas space and hopefully
memory consumption.
See #145
getSelectedBoundingBox expects a bounding box relative to (0, 0, 0) but
we were returning one relative to the current block. Instead we allow
the default behaviour to continue, which will call getBoundingBox and
offset it.
This means if lua code forgets to free a handle, the java GC will still
be able to collect the stream (andclose the file in the finaliser in the
process)
table.unpack will often stop at the first nil value, meaning some event
arguments may be discarded. By storing the number of arguments through
table.pack, and then using that count when unpacking, we can ensure all
values are returned/resumed with.
This ensures fs.list and fs.find always return the same result.
For some reason, the ComputerCraft jar was being packaged differently on
some platforms, causing files to appear in a different order. As
computers depend on the colors API being loaded before colours, we need
to ensure that they are loaded in a consistent order.
This may be useful when you want your tool to also provide additional
methods. For instance, a pickaxe could provide methods to check whether
it can break the block in front.
Threads that aren't daemon threads can keep the JVM from shutting down.
I'm certain that this doesn't happen very often but if one of these
threads hangs it can cause the rest of the JVM to not shut down
when the main thread exits.
By making all threads daemon threads if the main thread terminates
the rest of these threads will shut down.
Before we were setting the default as the previous value each time. Here
we store each property in a separate field, allowing us to access them
without setting a default.
The side marks the direction relative to the wire, rather than the side
of the block it is attempting to connect to. Therefore needs to be
flipped.
Closes#149
Packets will be discarded if the sending player is not currently
interacting with the appropriate computer. This ensures players cannot
control other people's computers.
This is enforced by checking if the current container is a "computer
container", and this container holds the correct computer.
If the path includes no wildcards then it just checks it exists.
If it does, instead of scanning the entire tree, it works out the last
directory before the wildcard and starts scanning from there.
Closes#89
We now listen to neighborChanged instead of onNeighborChange. This means
computers correctly detect redstone updates.
However, this leads to issues when moving turtles, so we defer the block
update until the turtle has finished moving.
Updated the source code to the version shipped as the 1.80pr0 alpha
release. Also removed some unnecessary files from the LuaJ subfolder
which were bulking up the repository.
