src/main/scala/li/cil/oc/common/tileentity/Hologram.scala - minecraft/opencomputers - Rivoreo Source Code Repositories

 package li.cil.oc.common.tileentity

 import cpw.mods.fml.relauncher.{Side, SideOnly}
 import li.cil.oc.api.network._
 import li.cil.oc.server.{PacketSender => ServerPacketSender}
 import li.cil.oc.{Settings, api}
 import net.minecraft.entity.player.EntityPlayer
 import net.minecraft.nbt.NBTTagCompound
 import net.minecraft.util.AxisAlignedBB
 import net.minecraftforge.common.ForgeDirection

 class Hologram extends traits.Environment with SidedEnvironment with Analyzable {
   val node = api.Network.newNode(this, Visibility.Network).
     withComponent("hologram").
     withConnector().
     create()

   val width = 3 * 16

   val height = 2 * 16 // 32 bit in an int

   val volume = new Array[Int](width * width)

   // Render scale.
   var scale = 1.0

   // Relative number of lit columns (for energy cost).
   var litRatio = -1.0

   // Whether we need to send an update packet/recompile our display list.
   var dirty = false

   // Interval of dirty columns.
   var dirtyFromX = Int.MaxValue
   var dirtyUntilX = -1
   var dirtyFromZ = Int.MaxValue
   var dirtyUntilZ = -1

   // Time to wait before sending another update packet.
   var cooldown = 5

   var hasPower = true

   def setDirty(x: Int, z: Int) {
     dirty = true
     dirtyFromX = math.min(dirtyFromX, x)
     dirtyUntilX = math.max(dirtyUntilX, x + 1)
     dirtyFromZ = math.min(dirtyFromZ, z)
     dirtyUntilZ = math.max(dirtyUntilZ, z + 1)
     litRatio = -1
   }

   def resetDirtyFlag() {
     dirty = false
     dirtyFromX = Int.MaxValue
     dirtyUntilX = -1
     dirtyFromZ = Int.MaxValue
     dirtyUntilZ = -1
     cooldown = 5
   }

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

   @SideOnly(Side.CLIENT)
   override def canConnect(side: ForgeDirection) = side == ForgeDirection.DOWN

   override def sidedNode(side: ForgeDirection) = if (side == ForgeDirection.DOWN) node else null

   // Override automatic analyzer implementation for sided environments.
   override def onAnalyze(player: EntityPlayer, side: Int, hitX: Float, hitY: Float, hitZ: Float) = Array(node)

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

   @Callback(doc = """function() -- Clears the hologram.""")
   def clear(computer: Context, args: Arguments): Array[AnyRef] = this.synchronized {
     for (i <- 0 until volume.length) volume(i) = 0
     ServerPacketSender.sendHologramClear(this)
     resetDirtyFlag()
     litRatio = 0
     null
   }

   @Callback(direct = true, doc = """function(x:number, z:number):number -- Returns the bit mask representing the specified column.""")
   def get(computer: Context, args: Arguments): Array[AnyRef] = this.synchronized {
     val (x, z) = checkCoordinates(args)
     result(volume(x + z * width))
   }

   @Callback(direct = true, limit = 256, doc = """function(x:number, z:number, value:number) -- Set the bit mask for the specified column.""")
   def set(computer: Context, args: Arguments): Array[AnyRef] = this.synchronized {
     val (x, z) = checkCoordinates(args)
     val value = args.checkDouble(2).longValue.intValue
     volume(x + z * width) = value
     setDirty(x, z)
     null
   }

   @Callback(direct = true, limit = 128, doc = """function(x:number, z:number, height:number) -- Fills a column to the specified height.""")
   def fill(computer: Context, args: Arguments): Array[AnyRef] = this.synchronized {
     val (x, z) = checkCoordinates(args)
     val height = math.min(32, math.max(0, args.checkInteger(2)))
     // Bit shifts in the JVM only use the lowest five bits... so we have to
     // manually check the height, to avoid the shift being a no-op.
     volume(x + z * width) = if (height > 0) 0xFFFFFFFF >>> (32 - height) else 0
     setDirty(x, z)
     null
   }

   @Callback(doc = """function(x:number, z:number, sx:number, sz:number, tx:number, tz:number) -- Copies an area of columns by the specified translation.""")
   def copy(computer: Context, args: Arguments): Array[AnyRef] = this.synchronized {
     val (x, z) = checkCoordinates(args)
     val w = args.checkInteger(2)
     val h = args.checkInteger(3)
     val tx = args.checkInteger(4)
     val tz = args.checkInteger(5)

     // Anything to do at all?
     if (w <= 0 || h <= 0) return null
     if (tx == 0 && tz == 0) return null
     // Loop over the target rectangle, starting from the directions away from
     // the source rectangle and copy the data. This way we ensure we don't
     // overwrite anything we still need to copy.
     val (dx0, dx1) = (math.max(0, math.min(width - 1, x + tx + w - 1)), math.max(0, math.min(width, x + tx))) match {
       case dx if tx > 0 => dx
       case dx => dx.swap
     }
     val (dz0, dz1) = (math.max(0, math.min(width - 1, z + tz + h - 1)), math.max(0, math.min(width, z + tz))) match {
       case dz if tz > 0 => dz
       case dz => dz.swap
     }
     val (sx, sz) = (if (tx > 0) -1 else 1, if (tz > 0) -1 else 1)
     // Copy values to destination rectangle if there source is valid.
     for (nz <- dz0 to dz1 by sz) {
       nz - tz match {
         case oz if oz >= 0 && oz < width =>
           for (nx <- dx0 to dx1 by sx) {
             nx - tx match {
               case ox if ox >= 0 && ox < width =>
                 volume(nz * width + nx) = volume(oz * width + ox)
               case _ => /* Got no source column. */
             }
           }
         case _ => /* Got no source row. */
       }
     }

     // Mark target rectangle dirty.
     setDirty(math.min(dx0, dx1), math.min(dz0, dz1))
     setDirty(math.max(dx0, dx1), math.max(dz0, dz1))

     // The reasoning here is: it'd take 18 ticks to do the whole are with fills,
     // so make this slightly more efficient (15 ticks - 0.75 seconds). Make it
     // 'free' if it's less than 0.25 seconds, i.e. for small copies.
     val area = (math.max(dx0, dx1) - math.min(dx0, dx1)) * (math.max(dz0, dz1) - math.min(dz0, dz1))
     val relativeArea = math.max(0, area / (width * width).toFloat - 0.25)
     computer.pause(relativeArea)

     null
   }

   @Callback(doc = """function():number -- Returns the render scale of the hologram.""")
   def getScale(computer: Context, args: Arguments): Array[AnyRef] = {
     result(scale)
   }

   @Callback(doc = """function(value:number) -- Set the render scale. A larger scale consumes more energy.""")
   def setScale(computer: Context, args: Arguments): Array[AnyRef] = {
     scale = math.max(0.333333, math.min(3, args.checkDouble(0)))
     ServerPacketSender.sendHologramScale(this)
     null
   }

   private def checkCoordinates(args: Arguments) = {
     val x = args.checkInteger(0) - 1
     if (x < 0 || x >= width) throw new ArrayIndexOutOfBoundsException()
     val z = args.checkInteger(1) - 1
     if (z < 0 || z >= width) throw new ArrayIndexOutOfBoundsException()
     (x, z)
   }

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

   override def updateEntity() {
     super.updateEntity()
     if (isServer) {
       if (dirty) {
         cooldown -= 1
         if (cooldown <= 0) this.synchronized {
           ServerPacketSender.sendHologramSet(this)
           resetDirtyFlag()
         }
       }
       if (world.getWorldTime % Settings.get.tickFrequency == 0) {
         if (litRatio < 0) this.synchronized {
           litRatio = 0
           for (i <- 0 until volume.length) {
             if (volume(i) != 0) litRatio += 1
           }
           litRatio /= volume.length
         }

         val hadPower = hasPower
         val neededPower = Settings.get.hologramCost * litRatio * scale * Settings.get.tickFrequency
         hasPower = node.tryChangeBuffer(-neededPower)
         if (hasPower != hadPower) {
           ServerPacketSender.sendHologramPowerChange(this)
         }
       }
     }
   }

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

   override def shouldRenderInPass(pass: Int) = pass == 1

   override def getRenderBoundingBox = AxisAlignedBB.getAABBPool.getAABB(xCoord + 0.5 - 1.5 * scale, yCoord, zCoord - scale, xCoord + 0.5 + 1.5 * scale, yCoord + 0.25 + 2 * scale, zCoord + 0.5 + 1.5 * scale)

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

   override def readFromNBT(nbt: NBTTagCompound) {
     super.readFromNBT(nbt)
     nbt.getIntArray(Settings.namespace + "volume").copyToArray(volume)
     scale = nbt.getDouble(Settings.namespace + "scale")
   }

   override def writeToNBT(nbt: NBTTagCompound) = this.synchronized {
     super.writeToNBT(nbt)
     nbt.setIntArray(Settings.namespace + "volume", volume)
     nbt.setDouble(Settings.namespace + "scale", scale)
   }

   @SideOnly(Side.CLIENT)
   override def readFromNBTForClient(nbt: NBTTagCompound) {
     super.readFromNBTForClient(nbt)
     nbt.getIntArray("volume").copyToArray(volume)
     scale = nbt.getDouble("scale")
     hasPower = nbt.getBoolean("hasPower")
     dirty = true
   }

   override def writeToNBTForClient(nbt: NBTTagCompound) {
     super.writeToNBTForClient(nbt)
     nbt.setIntArray("volume", volume)
     nbt.setDouble("scale", scale)
     nbt.setBoolean("hasPower", hasPower)
   }
 }
	package li.cil.oc.common.tileentity

	import cpw.mods.fml.relauncher.{Side, SideOnly}
	import li.cil.oc.api.network._
	import li.cil.oc.server.{PacketSender => ServerPacketSender}
	import li.cil.oc.{Settings, api}
	import net.minecraft.entity.player.EntityPlayer
	import net.minecraft.nbt.NBTTagCompound
	import net.minecraft.util.AxisAlignedBB
	import net.minecraftforge.common.ForgeDirection

	class Hologram extends traits.Environment with SidedEnvironment with Analyzable {
	val node = api.Network.newNode(this, Visibility.Network).
	withComponent("hologram").
	withConnector().
	create()

	val width = 3 * 16

	val height = 2 * 16 // 32 bit in an int

	val volume = new Array[Int](width * width)

	// Render scale.
	var scale = 1.0

	// Relative number of lit columns (for energy cost).
	var litRatio = -1.0

	// Whether we need to send an update packet/recompile our display list.
	var dirty = false

	// Interval of dirty columns.
	var dirtyFromX = Int.MaxValue
	var dirtyUntilX = -1
	var dirtyFromZ = Int.MaxValue
	var dirtyUntilZ = -1

	// Time to wait before sending another update packet.
	var cooldown = 5

	var hasPower = true

	def setDirty(x: Int, z: Int) {
	dirty = true
	dirtyFromX = math.min(dirtyFromX, x)
	dirtyUntilX = math.max(dirtyUntilX, x + 1)
	dirtyFromZ = math.min(dirtyFromZ, z)
	dirtyUntilZ = math.max(dirtyUntilZ, z + 1)
	litRatio = -1
	}

	def resetDirtyFlag() {
	dirty = false
	dirtyFromX = Int.MaxValue
	dirtyUntilX = -1
	dirtyFromZ = Int.MaxValue
	dirtyUntilZ = -1
	cooldown = 5
	}

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

	@SideOnly(Side.CLIENT)
	override def canConnect(side: ForgeDirection) = side == ForgeDirection.DOWN

	override def sidedNode(side: ForgeDirection) = if (side == ForgeDirection.DOWN) node else null

	// Override automatic analyzer implementation for sided environments.
	override def onAnalyze(player: EntityPlayer, side: Int, hitX: Float, hitY: Float, hitZ: Float) = Array(node)

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

	@Callback(doc = """function() -- Clears the hologram.""")
	def clear(computer: Context, args: Arguments): Array[AnyRef] = this.synchronized {
	for (i <- 0 until volume.length) volume(i) = 0
	ServerPacketSender.sendHologramClear(this)
	resetDirtyFlag()
	litRatio = 0
	null
	}

	@Callback(direct = true, doc = """function(x:number, z:number):number -- Returns the bit mask representing the specified column.""")
	def get(computer: Context, args: Arguments): Array[AnyRef] = this.synchronized {
	val (x, z) = checkCoordinates(args)
	result(volume(x + z * width))
	}

	@Callback(direct = true, limit = 256, doc = """function(x:number, z:number, value:number) -- Set the bit mask for the specified column.""")
	def set(computer: Context, args: Arguments): Array[AnyRef] = this.synchronized {
	val (x, z) = checkCoordinates(args)
	val value = args.checkDouble(2).longValue.intValue
	volume(x + z * width) = value
	setDirty(x, z)
	null
	}

	@Callback(direct = true, limit = 128, doc = """function(x:number, z:number, height:number) -- Fills a column to the specified height.""")
	def fill(computer: Context, args: Arguments): Array[AnyRef] = this.synchronized {
	val (x, z) = checkCoordinates(args)
	val height = math.min(32, math.max(0, args.checkInteger(2)))
	// Bit shifts in the JVM only use the lowest five bits... so we have to
	// manually check the height, to avoid the shift being a no-op.
	volume(x + z * width) = if (height > 0) 0xFFFFFFFF >>> (32 - height) else 0
	setDirty(x, z)
	null
	}

	@Callback(doc = """function(x:number, z:number, sx:number, sz:number, tx:number, tz:number) -- Copies an area of columns by the specified translation.""")
	def copy(computer: Context, args: Arguments): Array[AnyRef] = this.synchronized {
	val (x, z) = checkCoordinates(args)
	val w = args.checkInteger(2)
	val h = args.checkInteger(3)
	val tx = args.checkInteger(4)
	val tz = args.checkInteger(5)

	// Anything to do at all?
	if (w <= 0 \|\| h <= 0) return null
	if (tx == 0 && tz == 0) return null
	// Loop over the target rectangle, starting from the directions away from
	// the source rectangle and copy the data. This way we ensure we don't
	// overwrite anything we still need to copy.
	val (dx0, dx1) = (math.max(0, math.min(width - 1, x + tx + w - 1)), math.max(0, math.min(width, x + tx))) match {
	case dx if tx > 0 => dx
	case dx => dx.swap
	}
	val (dz0, dz1) = (math.max(0, math.min(width - 1, z + tz + h - 1)), math.max(0, math.min(width, z + tz))) match {
	case dz if tz > 0 => dz
	case dz => dz.swap
	}
	val (sx, sz) = (if (tx > 0) -1 else 1, if (tz > 0) -1 else 1)
	// Copy values to destination rectangle if there source is valid.
	for (nz <- dz0 to dz1 by sz) {
	nz - tz match {
	case oz if oz >= 0 && oz < width =>
	for (nx <- dx0 to dx1 by sx) {
	nx - tx match {
	case ox if ox >= 0 && ox < width =>
	volume(nz * width + nx) = volume(oz * width + ox)
	case _ => /* Got no source column. */
	}
	}
	case _ => /* Got no source row. */
	}
	}

	// Mark target rectangle dirty.
	setDirty(math.min(dx0, dx1), math.min(dz0, dz1))
	setDirty(math.max(dx0, dx1), math.max(dz0, dz1))

	// The reasoning here is: it'd take 18 ticks to do the whole are with fills,
	// so make this slightly more efficient (15 ticks - 0.75 seconds). Make it
	// 'free' if it's less than 0.25 seconds, i.e. for small copies.
	val area = (math.max(dx0, dx1) - math.min(dx0, dx1)) * (math.max(dz0, dz1) - math.min(dz0, dz1))
	val relativeArea = math.max(0, area / (width * width).toFloat - 0.25)
	computer.pause(relativeArea)

	null
	}

	@Callback(doc = """function():number -- Returns the render scale of the hologram.""")
	def getScale(computer: Context, args: Arguments): Array[AnyRef] = {
	result(scale)
	}

	@Callback(doc = """function(value:number) -- Set the render scale. A larger scale consumes more energy.""")
	def setScale(computer: Context, args: Arguments): Array[AnyRef] = {
	scale = math.max(0.333333, math.min(3, args.checkDouble(0)))
	ServerPacketSender.sendHologramScale(this)
	null
	}

	private def checkCoordinates(args: Arguments) = {
	val x = args.checkInteger(0) - 1
	if (x < 0 \|\| x >= width) throw new ArrayIndexOutOfBoundsException()
	val z = args.checkInteger(1) - 1
	if (z < 0 \|\| z >= width) throw new ArrayIndexOutOfBoundsException()
	(x, z)
	}

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

	override def updateEntity() {
	super.updateEntity()
	if (isServer) {
	if (dirty) {
	cooldown -= 1
	if (cooldown <= 0) this.synchronized {
	ServerPacketSender.sendHologramSet(this)
	resetDirtyFlag()
	}
	}
	if (world.getWorldTime % Settings.get.tickFrequency == 0) {
	if (litRatio < 0) this.synchronized {
	litRatio = 0
	for (i <- 0 until volume.length) {
	if (volume(i) != 0) litRatio += 1
	}
	litRatio /= volume.length
	}

	val hadPower = hasPower
	val neededPower = Settings.get.hologramCost * litRatio * scale * Settings.get.tickFrequency
	hasPower = node.tryChangeBuffer(-neededPower)
	if (hasPower != hadPower) {
	ServerPacketSender.sendHologramPowerChange(this)
	}
	}
	}
	}

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

	override def shouldRenderInPass(pass: Int) = pass == 1

	override def getRenderBoundingBox = AxisAlignedBB.getAABBPool.getAABB(xCoord + 0.5 - 1.5 * scale, yCoord, zCoord - scale, xCoord + 0.5 + 1.5 * scale, yCoord + 0.25 + 2 * scale, zCoord + 0.5 + 1.5 * scale)

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

	override def readFromNBT(nbt: NBTTagCompound) {
	super.readFromNBT(nbt)
	nbt.getIntArray(Settings.namespace + "volume").copyToArray(volume)
	scale = nbt.getDouble(Settings.namespace + "scale")
	}

	override def writeToNBT(nbt: NBTTagCompound) = this.synchronized {
	super.writeToNBT(nbt)
	nbt.setIntArray(Settings.namespace + "volume", volume)
	nbt.setDouble(Settings.namespace + "scale", scale)
	}

	@SideOnly(Side.CLIENT)
	override def readFromNBTForClient(nbt: NBTTagCompound) {
	super.readFromNBTForClient(nbt)
	nbt.getIntArray("volume").copyToArray(volume)
	scale = nbt.getDouble("scale")
	hasPower = nbt.getBoolean("hasPower")
	dirty = true
	}

	override def writeToNBTForClient(nbt: NBTTagCompound) {
	super.writeToNBTForClient(nbt)
	nbt.setIntArray("volume", volume)
	nbt.setDouble("scale", scale)
	nbt.setBoolean("hasPower", hasPower)
	}
	}