li/cil/oc/Config.scala - minecraft/opencomputers - Rivoreo Source Code Repositories

 package li.cil.oc

 import java.io.File
 import li.cil.oc.util.PackedColor

 object Config {
   val resourceDomain = "opencomputers"
   val namespace = "oc:"
   val savePath = "opencomputers/"
   val scriptPath = "/assets/" + resourceDomain + "/lua/"

   // ----------------------------------------------------------------------- //

   val screenResolutionsByTier = Array((50, 16), (80, 25), (160, 50))
   val screenDepthsByTier = Array(PackedColor.Depth.OneBit, PackedColor.Depth.FourBit, PackedColor.Depth.EightBit)

   // ----------------------------------------------------------------------- //

   var blockRenderId = 0

   // ----------------------------------------------------------------------- //

   var blockId = 3650
   var blockSpecialId = 3651
   var itemId = 4600

   // ----------------------------------------------------------------------- //
   // client

   var maxScreenTextRenderDistance = 10.0
   var screenTextFadeStartDistance = 8.0
   var textLinearFiltering = false

   // ----------------------------------------------------------------------- //
   // power

   var ignorePower = false

   // power.buffer
   var bufferConverter = 100.0
   var bufferCapacitor = 50.0
   var bufferPowerSupply = 50.0

   // power.cost
   var computerCost = 1.0
   var gpuFillCost = 1.0 / 100
   var gpuClearCost = 1.0 / 400
   var gpuCopyCost = 1.0 / 200
   var gpuSetCost = 1.0 / 80
   var hddReadCost = 1.0 / 1600.0
   var hddWriteCost = 1.0 / 800.0
   var powerSupplyCost = -1.25
   var screenCost = 0.2
   var wirelessCostPerRange = 1.0 / 20.0

   // ----------------------------------------------------------------------- //
   // server

   // server.computer
   var baseMemory = 0
   var canComputersBeOwned = true
   var maxUsernameLength = 32
   var maxUsers = 16
   var startupDelay = 0.5
   var threads = 4
   var timeout = 3.0

   // server.filesystem
   var fileCost = 512
   var filesBuffered = true
   var maxHandles = 16
   var maxReadBuffer = 8 * 1024

   // server.misc
   var commandUser = "OpenComputers"
   var maxScreenHeight = 6
   var maxScreenWidth = 8
   var maxWirelessRange = 400.0

   // ----------------------------------------------------------------------- //
   // robot

   var callOnItemUseFirst = false
   var allowActivateBlocks = true
   var canAttackPlayers = false

   // ----------------------------------------------------------------------- //

   def load(file: File) = {
     val config = new net.minecraftforge.common.Configuration(file)

     // --------------------------------------------------------------------- //

     blockId = config.getBlock("block", blockId,
       "The block ID used for simple blocks.").
       getInt(blockId)

     blockSpecialId = config.getBlock("blockSpecial", blockSpecialId,
       "The block ID used for special blocks.").
       getInt(blockSpecialId)

     itemId = config.getItem("item", itemId,
       "The item ID used for all non-stackable items.").
       getInt(itemId)

     // --------------------------------------------------------------------- //

     config.getCategory("client").
       setComment("Client side settings, presentation and performance related stuff.")

     maxScreenTextRenderDistance = config.get("client", "maxScreenTextRenderDistance", maxScreenTextRenderDistance, "" +
       "The maximum distance at which to render text on screens. Rendering text\n" +
       "can be pretty expensive, so if you have a lot of screens you'll want\n" +
       "to avoid huge numbers here. Note that this setting is client-sided, and\n" +
       "only has an impact on render performance on clients.").
       getDouble(maxScreenTextRenderDistance)

     screenTextFadeStartDistance = config.get("client", "screenTextFadeStartDistance", screenTextFadeStartDistance, "" +
       "The distance at which to start fading out the text on screens. This is\n" +
       "purely cosmetic, to avoid text disappearing instantly when moving too far\n" +
       "away from a screen. This should have no measurable impact on performance.\n" +
       "Note that this needs OpenGL 1.4 to work, otherwise text will always just\n" +
       "instantly disappear when moving away from the screen displaying it.").
       getDouble(screenTextFadeStartDistance)

     textLinearFiltering = config.get("client", "textLinearFiltering", textLinearFiltering, "" +
       "Whether to apply linear filtering for text displayed on screens when the\n" +
       "screen has to be scaled down - i.e. the text is rendered at a resolution\n" +
       "lower than their native one, e.g. when the GUI scale is less than one or\n" +
       "when looking at a far away screen. This leads to smoother text for scaled\n" +
       "down text but results in characters not perfectly connecting anymore (for\n" +
       "example for box drawing characters. Look it up on Wikipedia.)").
       getBoolean(textLinearFiltering)

     // --------------------------------------------------------------------- //

     config.getCategory("power").
       setComment("Power settings, buffer sizes and power consumption.")

     ignorePower = config.get("power", "ignorePower", ignorePower, "" +
       "Whether to ignore any power requirements. Whenever something requires\n" +
       "power to function, it will try to get the amount of energy it needs from\n" +
       "the buffer of its connector node, and in case it fails it won't perform\n" +
       "the action / trigger a shutdown / whatever. Setting this to `true` will\n" +
       "simply make the check 'is there enough energy' succeed unconditionally.\n" +
       "Note that buffers are still filled and emptied following the usual rules,\n" +
       "there just is no failure case anymore.").
       getBoolean(ignorePower)

     // --------------------------------------------------------------------- //

     bufferCapacitor = config.get("power.buffer", "bufferCapacitor", bufferCapacitor, "" +
       "The amount of energy a capacitor can store.").
       getDouble(bufferCapacitor) max 0

     bufferConverter = config.get("power.buffer", "bufferConverter", bufferConverter, "" +
       "The amount of energy a power converter can store.").
       getDouble(bufferConverter) max 0

     bufferPowerSupply = config.get("power.buffer", "bufferPowerSupply", bufferPowerSupply, "" +
       "The amount of energy a power supply can store.").
       getDouble(bufferPowerSupply) max 0

     // --------------------------------------------------------------------- //

     computerCost = config.get("power.cost", "computerCost", computerCost, "" +
       "The amount of energy a computer consumes per tick when running.").
       getDouble(computerCost) max 0

     gpuFillCost = config.get("power.cost", "gpuFillCost", gpuFillCost, "" +
       "Energy it takes to change a single 'pixel' via the fill command. This\n" +
       "means the total cost of the fill command will be its area times this.").
       getDouble(gpuFillCost) max 0

     gpuClearCost = config.get("power.cost", "gpuClearCost", gpuClearCost, "" +
       "Energy it takes to change a single 'pixel' to blank using the fill\n" +
       "command. This means the total cost of the fill command will be its\n" +
       "area times this.").
       getDouble(gpuClearCost) max 0

     gpuCopyCost = config.get("power.cost", "gpuCopyCost", gpuCopyCost, "" +
       "Energy it takes to move a single 'pixel' via the copy command. This\n" +
       "means the total cost of the copy command will be its area times this.").
       getDouble(gpuCopyCost) max 0

     gpuSetCost = config.get("power.cost", "gpuSetCost", gpuSetCost, "" +
       "Energy it takes to change a single 'pixel' via the set command. For\n" +
       "calls to set with a string, this means the total cost will be the\n" +
       "string length times this.").
       getDouble(gpuSetCost) max 0

     hddReadCost = config.get("power.cost", "hddReadCost", hddReadCost, "" +
       "Energy it takes read a single byte from a file system. Note that non\n" +
       "I/O operations on file systems such as `list` or `getFreeSpace` do\n" +
       "*not* consume power.").
       getDouble(hddReadCost) max 0

     hddWriteCost = config.get("power.cost", "hddWriteCost", hddWriteCost, "" +
       "Energy it takes to write a single byte to a file system.").
       getDouble(hddWriteCost) max 0

     powerSupplyCost = config.get("power.cost", "powerSupplyCost", powerSupplyCost, "" +
       "The amount of energy a power supply (item) produces per tick. This is\n" +
       "basically just a consumer, but instead of taking energy it puts it\n" +
       "back into the network. This is slightly more than what a computer\n" +
       "consumes per tick. It's meant as an easy way to powering a small\n" +
       "setup, mostly for testing. ").
       getDouble(powerSupplyCost)

     screenCost = config.get("power.cost", "screenCost", screenCost, "" +
       "The amount of energy a screen consumes per tick. If a screen cannot\n" +
       "consume the defined amount of energy it will stop rendering the text\n" +
       "that should be displayed on it. It will *not* forget that text,\n" +
       "however, so when enough power is available again it will restore the\n" +
       "previously displayed text (with any changes possibly made in the\n" +
       "meantime). Note that for multi-block screens *each* screen that is\n" +
       "part of it will consume this amount of energy per tick.").
       getDouble(screenCost) max 0

     wirelessCostPerRange = config.get("power.cost", "wirelessCostPerRange", wirelessCostPerRange, "" +
       "The amount of energy it costs to send a signal with strength one,\n" +
       "which means the signal reaches one block. This is scaled up linearly,\n" +
       "so for example to send a signal 400 blocks a signal strength of 400\n" +
       "is required, costing a total of 400 * `wirelessCostPerRange`. In\n" +
       "other words, the higher this value, the higher the cost of wireless\n" +
       "messages.\n" +
       "See also: `maxWirelessRange`.").
       getDouble(wirelessCostPerRange) max 0

     // --------------------------------------------------------------------- //

     config.getCategory("server").
       setComment("Server side settings, gameplay and security related stuff.")

     baseMemory = config.get("server.computer", "baseMemory", baseMemory, "" +
       "The base amount of memory made available in computers even if they\n" +
       "have no RAM installed. Use this if you feel you can't get enough RAM\n" +
       "using the given means, that being RAM components. Just keep in mind\n" +
       "that this is global and applies to all computers!").
       getInt(baseMemory)

     canComputersBeOwned = config.get("server.computer", "canComputersBeOwned", canComputersBeOwned, "" +
       "This determines whether computers can only be used by players that\n" +
       "are registered as users on them. Per default a newly placed computer\n" +
       "has no users. Whenever there are no users the computer is free for\n" +
       "all. Users can be managed via the Lua API (os.addUser, os.removeUser,\n" +
       "os.users). If this is true, the following interactions are only\n" +
       "possible for users:\n" +
       " - input via the keyboard.\n" +
       " - inventory management.\n" +
       " - breaking the computer block.\n" +
       "If this is set to false, all computers will always be usable by all\n" +
       "players, no matter the contents of the user list. Note that operators\n" +
       "are treated as if they were in the user list of every computer, i.e.\n" +
       "no restrictions apply to them.\n" +
       "See also: `maxUsers` and `maxUsernameLength`.").
       getBoolean(canComputersBeOwned)

     maxUsernameLength = config.get("server.computer", "maxUsernameLength", maxUsernameLength, "" +
       "Sanity check for username length for users registered with computers.\n" +
       "We store the actual user names instead of a hash to allow iterating\n" +
       "the list of registered users on the Lua side.\n" +
       "See also: `canComputersBeOwned`.").
       getInt(maxUsernameLength) max 0

     maxUsers = config.get("server.computer", "maxUsers", maxUsers, "" +
       "The maximum number of users that can be registered with a single\n" +
       "computer. This is used to avoid computers allocating unchecked\n" +
       "amounts of memory by registering an unlimited number of users.\n" +
       "See also: `canComputersBeOwned`.").
       getInt(maxUsers) max 0

     startupDelay = config.get("server.computer", "startupDelay", startupDelay, "" +
       "The time in seconds to wait after a computer has been restored before\n" +
       "it continues to run. This is meant to allow the world around the\n" +
       "computer to settle, avoiding issues such as components in neighboring\n" +
       "chunks being removed and then re-connected and other odd things that\n" +
       "might happen.").
       getDouble(startupDelay) max 0

     threads = config.get("server.computer", "threads", threads, "" +
       "The overall number of threads to use to drive computers. Whenever a\n" +
       "computer should run, for example because a signal should be processed\n" +
       "or some sleep timer expired it is queued for execution by a worker\n" +
       "thread. The higher the number of worker threads, the less likely it\n" +
       "will be that computers block each other from running, but the higher\n" +
       "the host system's load may become.").
       getInt(threads) max 1

     timeout = config.get("server.computer", "timeout", timeout, "" +
       "The time in seconds a program may run without yielding before it is\n" +
       "forcibly aborted. This is used to avoid stupidly written or malicious\n" +
       "programs blocking other computers by locking down the executor\n" +
       "threads. Note that changing this won't have any effect on computers\n" +
       "that are already running - they'll have to be rebooted for this to\n" +
       "take effect.").
       getDouble(timeout) max 0

     // --------------------------------------------------------------------- //

     fileCost = config.get("server.filesystem", "fileCost", fileCost, "" +
       "The base 'cost' of a single file or directory on a limited file\n" +
       "system, such as hard drives. When computing the used space we add\n" +
       "this cost to the real size of each file (and folders, which are zero\n" +
       "sized otherwise). This is to ensure that users cannot spam the file\n" +
       "system with an infinite number of files and/or folders. Note that the\n" +
       "size returned via the API will always be the real file size, however.").
       getInt(fileCost) max 0

     filesBuffered = config.get("server.filesystem", "filesBuffered", filesBuffered, "" +
       "Whether persistent file systems such as disk drivers should be\n" +
       "'buffered', and only written to disk when the world is saved. This\n" +
       "applies to all hard drives. The advantage of having this enabled is\n" +
       "that data will never go 'out of sync' with the computer's state if\n" +
       "the game crashes. The price is slightly higher memory consumption,\n" +
       "since all loaded files have to be kept in memory (loaded as in when\n" +
       "the hard drive is in a computer).").
       getBoolean(filesBuffered)

     maxHandles = config.get("server.filesystem", "maxHandles", maxHandles, "" +
       "The maximum number of file handles any single computer may have open\n" +
       "at a time. Note that this is *per filesystem*. Also note that this is\n" +
       "only enforced by the filesystem node - if an add-on decides to be\n" +
       "fancy it may well ignore this. Since file systems are usually\n" +
       "'virtual' this will usually not have any real impact on performance\n" +
       "and won't be noticeable on the host operating system.")
       .getInt(maxHandles) max 0

     maxReadBuffer = config.get("server.filesystem", "maxReadBuffer", maxReadBuffer, "" +
       "The maximum block size that can be read in one 'read' call on a file\n" +
       "system. This is used to limit the amount of memory a call from a user\n" +
       "program can cause to be allocated on the host side: when 'read' is,\n" +
       "called a byte array with the specified size has to be allocated. So\n" +
       "if this weren't limited, a Lua program could trigger massive memory\n" +
       "allocations regardless of the amount of RAM installed in the computer\n" +
       "it runs on. As a side effect this pretty much determines the read\n" +
       "performance of file systems.")
       .getInt(maxReadBuffer) max 0

     // --------------------------------------------------------------------- //

     commandUser = config.get("server.misc", "commandUser", commandUser, "" +
       "The user name to specify when executing a command via a command\n" +
       "block. If you leave this empty it will use the address of the network\n" +
       "node that sent the execution request - which will usually be a\n" +
       "computer.").
       getString.trim

     maxScreenHeight = config.get("server.misc", "maxScreenHeight", maxScreenHeight, "" +
       "The maximum height of multi-block screens, in blocks. This is limited\n" +
       "to avoid excessive computations for merging screens. If you really\n" +
       "need bigger screens it's probably safe to bump this quite a bit\n" +
       "before you notice anything, since at least incremental updates should\n" +
       "be very efficient (i.e. when adding/removing a single screen).")
       .getInt(maxScreenHeight) max 1

     maxScreenWidth = config.get("server.misc", "maxScreenWidth", maxScreenWidth, "" +
       "The maximum width of multi-block screens, in blocks.\n" +
       "See also: `maxScreenHeight`.")
       .getInt(maxScreenWidth) max 1

     maxWirelessRange = config.get("server.misc", "maxWirelessRange", maxWirelessRange, "" +
       "The maximum distance a wireless message can be sent. In other words,\n" +
       "this is the maximum signal strength a wireless network card supports.\n" +
       "This is used to limit the search range in which to check for modems,\n" +
       "which may or may not lead to performance issues for ridiculous\n" +
       "ranges - like, you know, more than the loaded area.\n" +
       "See also: `wirelessCostPerRange`.").
       getDouble(maxWirelessRange) max 0

     // --------------------------------------------------------------------- //

     if (config.hasChanged)
       config.save()
   }
 }
	package li.cil.oc

	import java.io.File
	import li.cil.oc.util.PackedColor

	object Config {
	val resourceDomain = "opencomputers"
	val namespace = "oc:"
	val savePath = "opencomputers/"
	val scriptPath = "/assets/" + resourceDomain + "/lua/"

	// ----------------------------------------------------------------------- //

	val screenResolutionsByTier = Array((50, 16), (80, 25), (160, 50))
	val screenDepthsByTier = Array(PackedColor.Depth.OneBit, PackedColor.Depth.FourBit, PackedColor.Depth.EightBit)

	// ----------------------------------------------------------------------- //

	var blockRenderId = 0

	// ----------------------------------------------------------------------- //

	var blockId = 3650
	var blockSpecialId = 3651
	var itemId = 4600

	// ----------------------------------------------------------------------- //
	// client

	var maxScreenTextRenderDistance = 10.0
	var screenTextFadeStartDistance = 8.0
	var textLinearFiltering = false

	// ----------------------------------------------------------------------- //
	// power

	var ignorePower = false

	// power.buffer
	var bufferConverter = 100.0
	var bufferCapacitor = 50.0
	var bufferPowerSupply = 50.0

	// power.cost
	var computerCost = 1.0
	var gpuFillCost = 1.0 / 100
	var gpuClearCost = 1.0 / 400
	var gpuCopyCost = 1.0 / 200
	var gpuSetCost = 1.0 / 80
	var hddReadCost = 1.0 / 1600.0
	var hddWriteCost = 1.0 / 800.0
	var powerSupplyCost = -1.25
	var screenCost = 0.2
	var wirelessCostPerRange = 1.0 / 20.0

	// ----------------------------------------------------------------------- //
	// server

	// server.computer
	var baseMemory = 0
	var canComputersBeOwned = true
	var maxUsernameLength = 32
	var maxUsers = 16
	var startupDelay = 0.5
	var threads = 4
	var timeout = 3.0

	// server.filesystem
	var fileCost = 512
	var filesBuffered = true
	var maxHandles = 16
	var maxReadBuffer = 8 * 1024

	// server.misc
	var commandUser = "OpenComputers"
	var maxScreenHeight = 6
	var maxScreenWidth = 8
	var maxWirelessRange = 400.0

	// ----------------------------------------------------------------------- //
	// robot

	var callOnItemUseFirst = false
	var allowActivateBlocks = true
	var canAttackPlayers = false

	// ----------------------------------------------------------------------- //

	def load(file: File) = {
	val config = new net.minecraftforge.common.Configuration(file)

	// --------------------------------------------------------------------- //

	blockId = config.getBlock("block", blockId,
	"The block ID used for simple blocks.").
	getInt(blockId)

	blockSpecialId = config.getBlock("blockSpecial", blockSpecialId,
	"The block ID used for special blocks.").
	getInt(blockSpecialId)

	itemId = config.getItem("item", itemId,
	"The item ID used for all non-stackable items.").
	getInt(itemId)

	// --------------------------------------------------------------------- //

	config.getCategory("client").
	setComment("Client side settings, presentation and performance related stuff.")

	maxScreenTextRenderDistance = config.get("client", "maxScreenTextRenderDistance", maxScreenTextRenderDistance, "" +
	"The maximum distance at which to render text on screens. Rendering text\n" +
	"can be pretty expensive, so if you have a lot of screens you'll want\n" +
	"to avoid huge numbers here. Note that this setting is client-sided, and\n" +
	"only has an impact on render performance on clients.").
	getDouble(maxScreenTextRenderDistance)

	screenTextFadeStartDistance = config.get("client", "screenTextFadeStartDistance", screenTextFadeStartDistance, "" +
	"The distance at which to start fading out the text on screens. This is\n" +
	"purely cosmetic, to avoid text disappearing instantly when moving too far\n" +
	"away from a screen. This should have no measurable impact on performance.\n" +
	"Note that this needs OpenGL 1.4 to work, otherwise text will always just\n" +
	"instantly disappear when moving away from the screen displaying it.").
	getDouble(screenTextFadeStartDistance)

	textLinearFiltering = config.get("client", "textLinearFiltering", textLinearFiltering, "" +
	"Whether to apply linear filtering for text displayed on screens when the\n" +
	"screen has to be scaled down - i.e. the text is rendered at a resolution\n" +
	"lower than their native one, e.g. when the GUI scale is less than one or\n" +
	"when looking at a far away screen. This leads to smoother text for scaled\n" +
	"down text but results in characters not perfectly connecting anymore (for\n" +
	"example for box drawing characters. Look it up on Wikipedia.)").
	getBoolean(textLinearFiltering)

	// --------------------------------------------------------------------- //

	config.getCategory("power").
	setComment("Power settings, buffer sizes and power consumption.")

	ignorePower = config.get("power", "ignorePower", ignorePower, "" +
	"Whether to ignore any power requirements. Whenever something requires\n" +
	"power to function, it will try to get the amount of energy it needs from\n" +
	"the buffer of its connector node, and in case it fails it won't perform\n" +
	"the action / trigger a shutdown / whatever. Setting this to `true` will\n" +
	"simply make the check 'is there enough energy' succeed unconditionally.\n" +
	"Note that buffers are still filled and emptied following the usual rules,\n" +
	"there just is no failure case anymore.").
	getBoolean(ignorePower)

	// --------------------------------------------------------------------- //

	bufferCapacitor = config.get("power.buffer", "bufferCapacitor", bufferCapacitor, "" +
	"The amount of energy a capacitor can store.").
	getDouble(bufferCapacitor) max 0

	bufferConverter = config.get("power.buffer", "bufferConverter", bufferConverter, "" +
	"The amount of energy a power converter can store.").
	getDouble(bufferConverter) max 0

	bufferPowerSupply = config.get("power.buffer", "bufferPowerSupply", bufferPowerSupply, "" +
	"The amount of energy a power supply can store.").
	getDouble(bufferPowerSupply) max 0

	// --------------------------------------------------------------------- //

	computerCost = config.get("power.cost", "computerCost", computerCost, "" +
	"The amount of energy a computer consumes per tick when running.").
	getDouble(computerCost) max 0

	gpuFillCost = config.get("power.cost", "gpuFillCost", gpuFillCost, "" +
	"Energy it takes to change a single 'pixel' via the fill command. This\n" +
	"means the total cost of the fill command will be its area times this.").
	getDouble(gpuFillCost) max 0

	gpuClearCost = config.get("power.cost", "gpuClearCost", gpuClearCost, "" +
	"Energy it takes to change a single 'pixel' to blank using the fill\n" +
	"command. This means the total cost of the fill command will be its\n" +
	"area times this.").
	getDouble(gpuClearCost) max 0

	gpuCopyCost = config.get("power.cost", "gpuCopyCost", gpuCopyCost, "" +
	"Energy it takes to move a single 'pixel' via the copy command. This\n" +
	"means the total cost of the copy command will be its area times this.").
	getDouble(gpuCopyCost) max 0

	gpuSetCost = config.get("power.cost", "gpuSetCost", gpuSetCost, "" +
	"Energy it takes to change a single 'pixel' via the set command. For\n" +
	"calls to set with a string, this means the total cost will be the\n" +
	"string length times this.").
	getDouble(gpuSetCost) max 0

	hddReadCost = config.get("power.cost", "hddReadCost", hddReadCost, "" +
	"Energy it takes read a single byte from a file system. Note that non\n" +
	"I/O operations on file systems such as `list` or `getFreeSpace` do\n" +
	"not consume power.").
	getDouble(hddReadCost) max 0

	hddWriteCost = config.get("power.cost", "hddWriteCost", hddWriteCost, "" +
	"Energy it takes to write a single byte to a file system.").
	getDouble(hddWriteCost) max 0

	powerSupplyCost = config.get("power.cost", "powerSupplyCost", powerSupplyCost, "" +
	"The amount of energy a power supply (item) produces per tick. This is\n" +
	"basically just a consumer, but instead of taking energy it puts it\n" +
	"back into the network. This is slightly more than what a computer\n" +
	"consumes per tick. It's meant as an easy way to powering a small\n" +
	"setup, mostly for testing. ").
	getDouble(powerSupplyCost)

	screenCost = config.get("power.cost", "screenCost", screenCost, "" +
	"The amount of energy a screen consumes per tick. If a screen cannot\n" +
	"consume the defined amount of energy it will stop rendering the text\n" +
	"that should be displayed on it. It will not forget that text,\n" +
	"however, so when enough power is available again it will restore the\n" +
	"previously displayed text (with any changes possibly made in the\n" +
	"meantime). Note that for multi-block screens each screen that is\n" +
	"part of it will consume this amount of energy per tick.").
	getDouble(screenCost) max 0

	wirelessCostPerRange = config.get("power.cost", "wirelessCostPerRange", wirelessCostPerRange, "" +
	"The amount of energy it costs to send a signal with strength one,\n" +
	"which means the signal reaches one block. This is scaled up linearly,\n" +
	"so for example to send a signal 400 blocks a signal strength of 400\n" +
	"is required, costing a total of 400 * `wirelessCostPerRange`. In\n" +
	"other words, the higher this value, the higher the cost of wireless\n" +
	"messages.\n" +
	"See also: `maxWirelessRange`.").
	getDouble(wirelessCostPerRange) max 0

	// --------------------------------------------------------------------- //

	config.getCategory("server").
	setComment("Server side settings, gameplay and security related stuff.")

	baseMemory = config.get("server.computer", "baseMemory", baseMemory, "" +
	"The base amount of memory made available in computers even if they\n" +
	"have no RAM installed. Use this if you feel you can't get enough RAM\n" +
	"using the given means, that being RAM components. Just keep in mind\n" +
	"that this is global and applies to all computers!").
	getInt(baseMemory)

	canComputersBeOwned = config.get("server.computer", "canComputersBeOwned", canComputersBeOwned, "" +
	"This determines whether computers can only be used by players that\n" +
	"are registered as users on them. Per default a newly placed computer\n" +
	"has no users. Whenever there are no users the computer is free for\n" +
	"all. Users can be managed via the Lua API (os.addUser, os.removeUser,\n" +
	"os.users). If this is true, the following interactions are only\n" +
	"possible for users:\n" +
	" - input via the keyboard.\n" +
	" - inventory management.\n" +
	" - breaking the computer block.\n" +
	"If this is set to false, all computers will always be usable by all\n" +
	"players, no matter the contents of the user list. Note that operators\n" +
	"are treated as if they were in the user list of every computer, i.e.\n" +
	"no restrictions apply to them.\n" +
	"See also: `maxUsers` and `maxUsernameLength`.").
	getBoolean(canComputersBeOwned)

	maxUsernameLength = config.get("server.computer", "maxUsernameLength", maxUsernameLength, "" +
	"Sanity check for username length for users registered with computers.\n" +
	"We store the actual user names instead of a hash to allow iterating\n" +
	"the list of registered users on the Lua side.\n" +
	"See also: `canComputersBeOwned`.").
	getInt(maxUsernameLength) max 0

	maxUsers = config.get("server.computer", "maxUsers", maxUsers, "" +
	"The maximum number of users that can be registered with a single\n" +
	"computer. This is used to avoid computers allocating unchecked\n" +
	"amounts of memory by registering an unlimited number of users.\n" +
	"See also: `canComputersBeOwned`.").
	getInt(maxUsers) max 0

	startupDelay = config.get("server.computer", "startupDelay", startupDelay, "" +
	"The time in seconds to wait after a computer has been restored before\n" +
	"it continues to run. This is meant to allow the world around the\n" +
	"computer to settle, avoiding issues such as components in neighboring\n" +
	"chunks being removed and then re-connected and other odd things that\n" +
	"might happen.").
	getDouble(startupDelay) max 0

	threads = config.get("server.computer", "threads", threads, "" +
	"The overall number of threads to use to drive computers. Whenever a\n" +
	"computer should run, for example because a signal should be processed\n" +
	"or some sleep timer expired it is queued for execution by a worker\n" +
	"thread. The higher the number of worker threads, the less likely it\n" +
	"will be that computers block each other from running, but the higher\n" +
	"the host system's load may become.").
	getInt(threads) max 1

	timeout = config.get("server.computer", "timeout", timeout, "" +
	"The time in seconds a program may run without yielding before it is\n" +
	"forcibly aborted. This is used to avoid stupidly written or malicious\n" +
	"programs blocking other computers by locking down the executor\n" +
	"threads. Note that changing this won't have any effect on computers\n" +
	"that are already running - they'll have to be rebooted for this to\n" +
	"take effect.").
	getDouble(timeout) max 0

	// --------------------------------------------------------------------- //

	fileCost = config.get("server.filesystem", "fileCost", fileCost, "" +
	"The base 'cost' of a single file or directory on a limited file\n" +
	"system, such as hard drives. When computing the used space we add\n" +
	"this cost to the real size of each file (and folders, which are zero\n" +
	"sized otherwise). This is to ensure that users cannot spam the file\n" +
	"system with an infinite number of files and/or folders. Note that the\n" +
	"size returned via the API will always be the real file size, however.").
	getInt(fileCost) max 0

	filesBuffered = config.get("server.filesystem", "filesBuffered", filesBuffered, "" +
	"Whether persistent file systems such as disk drivers should be\n" +
	"'buffered', and only written to disk when the world is saved. This\n" +
	"applies to all hard drives. The advantage of having this enabled is\n" +
	"that data will never go 'out of sync' with the computer's state if\n" +
	"the game crashes. The price is slightly higher memory consumption,\n" +
	"since all loaded files have to be kept in memory (loaded as in when\n" +
	"the hard drive is in a computer).").
	getBoolean(filesBuffered)

	maxHandles = config.get("server.filesystem", "maxHandles", maxHandles, "" +
	"The maximum number of file handles any single computer may have open\n" +
	"at a time. Note that this is per filesystem. Also note that this is\n" +
	"only enforced by the filesystem node - if an add-on decides to be\n" +
	"fancy it may well ignore this. Since file systems are usually\n" +
	"'virtual' this will usually not have any real impact on performance\n" +
	"and won't be noticeable on the host operating system.")
	.getInt(maxHandles) max 0

	maxReadBuffer = config.get("server.filesystem", "maxReadBuffer", maxReadBuffer, "" +
	"The maximum block size that can be read in one 'read' call on a file\n" +
	"system. This is used to limit the amount of memory a call from a user\n" +
	"program can cause to be allocated on the host side: when 'read' is,\n" +
	"called a byte array with the specified size has to be allocated. So\n" +
	"if this weren't limited, a Lua program could trigger massive memory\n" +
	"allocations regardless of the amount of RAM installed in the computer\n" +
	"it runs on. As a side effect this pretty much determines the read\n" +
	"performance of file systems.")
	.getInt(maxReadBuffer) max 0

	// --------------------------------------------------------------------- //

	commandUser = config.get("server.misc", "commandUser", commandUser, "" +
	"The user name to specify when executing a command via a command\n" +
	"block. If you leave this empty it will use the address of the network\n" +
	"node that sent the execution request - which will usually be a\n" +
	"computer.").
	getString.trim

	maxScreenHeight = config.get("server.misc", "maxScreenHeight", maxScreenHeight, "" +
	"The maximum height of multi-block screens, in blocks. This is limited\n" +
	"to avoid excessive computations for merging screens. If you really\n" +
	"need bigger screens it's probably safe to bump this quite a bit\n" +
	"before you notice anything, since at least incremental updates should\n" +
	"be very efficient (i.e. when adding/removing a single screen).")
	.getInt(maxScreenHeight) max 1

	maxScreenWidth = config.get("server.misc", "maxScreenWidth", maxScreenWidth, "" +
	"The maximum width of multi-block screens, in blocks.\n" +
	"See also: `maxScreenHeight`.")
	.getInt(maxScreenWidth) max 1

	maxWirelessRange = config.get("server.misc", "maxWirelessRange", maxWirelessRange, "" +
	"The maximum distance a wireless message can be sent. In other words,\n" +
	"this is the maximum signal strength a wireless network card supports.\n" +
	"This is used to limit the search range in which to check for modems,\n" +
	"which may or may not lead to performance issues for ridiculous\n" +
	"ranges - like, you know, more than the loaded area.\n" +
	"See also: `wirelessCostPerRange`.").
	getDouble(maxWirelessRange) max 0

	// --------------------------------------------------------------------- //

	if (config.hasChanged)
	config.save()
	}
	}