li/cil/oc/server/component/robot/Player.scala - minecraft/opencomputers - Rivoreo Source Code Repositories

 package li.cil.oc.server.component.robot

 import li.cil.oc.Settings
 import li.cil.oc.common.tileentity
 import li.cil.oc.util.mods.{IndustrialCraft2, PortalGun}
 import net.minecraft.block.{BlockPistonBase, BlockFluid, Block}
 import net.minecraft.entity.item.EntityItem
 import net.minecraft.entity.player.{EnumStatus, EntityPlayer}
 import net.minecraft.entity.{IMerchant, EntityLivingBase, Entity}
 import net.minecraft.item.{ItemBlock, ItemStack}
 import net.minecraft.potion.PotionEffect
 import net.minecraft.server.MinecraftServer
 import net.minecraft.util._
 import net.minecraft.world.World
 import net.minecraftforge.common.{ForgeHooks, ForgeDirection}
 import net.minecraftforge.event.entity.player.PlayerInteractEvent.Action
 import net.minecraftforge.event.{Event, ForgeEventFactory}
 import net.minecraftforge.fluids.FluidRegistry
 import scala.collection.convert.WrapAsScala._
 import scala.reflect._

 class Player(val robot: tileentity.Robot) extends EntityPlayer(robot.world, Settings.get.nameFormat.replace("$player$", robot.owner).replace("$random$", (robot.world.rand.nextInt(0xFFFFFF) + 1).toString)) {
   capabilities.allowFlying = true
   capabilities.disableDamage = true
   capabilities.isFlying = true
   onGround = true
   yOffset = 0.5f
   eyeHeight = 0f
   setSize(1, 1)

   val robotInventory = new Inventory(this)
   inventory = robotInventory

   var facing, side = ForgeDirection.UNKNOWN

   def world = robot.worldObj

   override def getPlayerCoordinates = new ChunkCoordinates(robot.x, robot.y, robot.z)

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

   def updatePositionAndRotation(facing: ForgeDirection, side: ForgeDirection) {
     this.facing = facing
     this.side = side
     // Slightly offset in robot's facing to avoid glitches (e.g. Portal Gun).
     val direction = Vec3.createVectorHelper(
       facing.offsetX + side.offsetX * 0.5 + robot.facing.offsetX * 0.01,
       facing.offsetY + side.offsetY * 0.5 + robot.facing.offsetY * 0.01,
       facing.offsetZ + side.offsetZ * 0.5 + robot.facing.offsetZ * 0.01).normalize()
     val yaw = Math.toDegrees(-Math.atan2(direction.xCoord, direction.zCoord)).toFloat
     val pitch = Math.toDegrees(-Math.atan2(direction.yCoord, Math.sqrt((direction.xCoord * direction.xCoord) + (direction.zCoord * direction.zCoord)))).toFloat * 0.99f
     setLocationAndAngles(robot.x + 0.5, robot.y, robot.z + 0.5, yaw, pitch)
     prevRotationPitch = rotationPitch
     prevRotationYaw = rotationYaw
   }

   def closestEntity[Type <: Entity : ClassTag](side: ForgeDirection = facing) = {
     val (x, y, z) = (robot.x + side.offsetX, robot.y + side.offsetY, robot.z + side.offsetZ)
     val bounds = AxisAlignedBB.getAABBPool.getAABB(x, y, z, x + 1, y + 1, z + 1)
     Option(world.findNearestEntityWithinAABB(classTag[Type].runtimeClass, bounds, this)).map(_.asInstanceOf[Type])
   }

   def entitiesOnSide[Type <: Entity : ClassTag](side: ForgeDirection) = {
     val (x, y, z) = (robot.x + side.offsetX, robot.y + side.offsetY, robot.z + side.offsetZ)
     entitiesInBlock[Type](x, y, z)
   }

   def entitiesInBlock[Type <: Entity : ClassTag](x: Int, y: Int, z: Int) = {
     val bounds = AxisAlignedBB.getAABBPool.getAABB(x, y, z, x + 1, y + 1, z + 1)
     world.getEntitiesWithinAABB(classTag[Type].runtimeClass, bounds).map(_.asInstanceOf[Type])
   }

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

   override def attackTargetEntityWithCurrentItem(entity: Entity) {
     entity match {
       case player: EntityPlayer if !canAttackPlayer(player) => // Avoid player damage.
       case _ =>
         val stack = getCurrentEquippedItem
         val oldDamage = if (stack != null) getCurrentEquippedItem.getItemDamage else 0
         super.attackTargetEntityWithCurrentItem(entity)
         if (stack != null && entity.isDead) {
           robot.addXp(Settings.get.robotActionXp)
         }
         if (stack != null && stack.stackSize > 0) {
           tryRepair(stack, oldDamage)
         }
     }
   }

   override def interactWith(entity: Entity) = {
     val stack = getCurrentEquippedItem
     val oldDamage = if (stack != null) getCurrentEquippedItem.getItemDamage else 0
     val result = super.interactWith(entity)
     if (stack != null && stack.stackSize > 0) {
       tryRepair(stack, oldDamage)
     }
     result
   }

   def activateBlockOrUseItem(x: Int, y: Int, z: Int, side: Int, hitX: Float, hitY: Float, hitZ: Float, duration: Double): ActivationType.Value = {
     val event = ForgeEventFactory.onPlayerInteract(this, Action.RIGHT_CLICK_BLOCK, x, y, z, side)
     if (event.isCanceled || event.useBlock == Event.Result.DENY) {
       return ActivationType.None
     }

     val stack = inventory.getCurrentItem
     val item = if (stack != null) stack.getItem else null
     if (!PortalGun.isPortalGun(stack)) {
       if (item != null && item.onItemUseFirst(stack, this, world, x, y, z, side, hitX, hitY, hitZ)) {
         if (stack.stackSize <= 0) ForgeEventFactory.onPlayerDestroyItem(this, stack)
         if (stack.stackSize <= 0) inventory.setInventorySlotContents(0, null)
         return ActivationType.ItemUsed
       }
     }

     val blockId = world.getBlockId(x, y, z)
     val block = Block.blocksList(blockId)
     val canActivate = block != null && Settings.get.allowActivateBlocks
     val shouldActivate = canActivate && (!isSneaking || (item == null || item.shouldPassSneakingClickToBlock(world, x, y, z)))
     if (shouldActivate && block.onBlockActivated(world, x, y, z, this, side, hitX, hitY, hitZ)) {
       return ActivationType.BlockActivated
     }

     if (stack != null) {
       val didPlace = tryPlaceBlockWhileHandlingFunnySpecialCases(stack, x, y, z, side, hitX, hitY, hitZ)
       if (stack.stackSize <= 0) ForgeEventFactory.onPlayerDestroyItem(this, stack)
       if (stack.stackSize <= 0) inventory.setInventorySlotContents(0, null)
       if (didPlace) {
         return ActivationType.ItemPlaced
       }

       if (tryUseItem(stack, duration)) {
         return ActivationType.ItemUsed
       }
     }

     ActivationType.None
   }

   def useEquippedItem(duration: Double) = {
     val event = ForgeEventFactory.onPlayerInteract(this, Action.RIGHT_CLICK_AIR, 0, 0, 0, -1)
     if (!event.isCanceled && event.useItem != Event.Result.DENY) {
       tryUseItem(getCurrentEquippedItem, duration)
     }
     else false
   }

   private def tryUseItem(stack: ItemStack, duration: Double) = {
     clearItemInUse()
     stack != null && stack.stackSize > 0 &&
       (Settings.get.allowUseItemsWithDuration || stack.getMaxItemUseDuration <= 0) &&
       (!PortalGun.isPortalGun(stack) || PortalGun.isStandardPortalGun(stack)) && {
       val oldSize = stack.stackSize
       val oldDamage = if (stack != null) stack.getItemDamage else 0
       val oldData = if (stack.hasTagCompound) stack.getTagCompound.copy() else null
       val heldTicks = math.max(0, math.min(stack.getMaxItemUseDuration, (duration * 20).toInt))
       val newStack = if (IndustrialCraft2.isMiningLaser(stack)) {
         // Fire the mining laser from a little bit ahead of us, to avoid hitting
         // the robot itself.
         val offset = facing
         posX += offset.offsetX * 0.5
         posY += offset.offsetY * 0.5
         posZ += offset.offsetZ * 0.5
         val result = stack.useItemRightClick(world, this)
         posX -= offset.offsetX * 0.5
         posY -= offset.offsetY * 0.5
         posZ -= offset.offsetZ * 0.5
         result
       }
       else stack.useItemRightClick(world, this)
       if (isUsingItem) {
         getItemInUse.onPlayerStoppedUsing(world, this, getItemInUse.getMaxItemUseDuration - heldTicks)
         clearItemInUse()
       }
       robot.computer.pause(heldTicks / 20.0)
       // These are functions to avoid null pointers if newStack is null.
       def sizeOrDamageChanged = newStack.stackSize != oldSize || newStack.getItemDamage != oldDamage
       def tagChanged = (oldData == null && newStack.hasTagCompound) || (oldData != null && !newStack.hasTagCompound) ||
         (oldData != null && newStack.hasTagCompound && !oldData.equals(newStack.getTagCompound))
       val stackChanged = newStack != stack || (newStack != null && (sizeOrDamageChanged || tagChanged || PortalGun.isStandardPortalGun(stack)))
       if (newStack == stack && stack.stackSize > 0) {
         tryRepair(stack, oldDamage)
       }
       stackChanged && {
         if (newStack.stackSize <= 0) ForgeEventFactory.onPlayerDestroyItem(this, newStack)
         if (newStack.stackSize > 0) inventory.setInventorySlotContents(0, newStack)
         else inventory.setInventorySlotContents(0, null)
         true
       }
     }
   }

   def placeBlock(stack: ItemStack, x: Int, y: Int, z: Int, side: Int, hitX: Float, hitY: Float, hitZ: Float): Boolean = {
     val event = ForgeEventFactory.onPlayerInteract(this, Action.RIGHT_CLICK_BLOCK, x, y, z, side)
     if (event.isCanceled) {
       return false
     }

     event.useBlock == Event.Result.DENY || {
       val result = tryPlaceBlockWhileHandlingFunnySpecialCases(stack, x, y, z, side, hitX, hitY, hitZ)
       if (stack.stackSize <= 0) ForgeEventFactory.onPlayerDestroyItem(this, stack)
       result
     }
   }

   def clickBlock(x: Int, y: Int, z: Int, side: Int): Double = {
     val event = ForgeEventFactory.onPlayerInteract(this, Action.LEFT_CLICK_BLOCK, x, y, z, side)
     if (event.isCanceled) {
       return 0
     }

     // TODO Is this already handled via the event?
     if (MinecraftServer.getServer.isBlockProtected(world, x, y, z, this)) {
       return 0
     }

     val blockId = world.getBlockId(x, y, z)
     val block = Block.blocksList(blockId)
     val metadata = world.getBlockMetadata(x, y, z)
     val mayClickBlock = event.useBlock != Event.Result.DENY && blockId > 0 && block != null
     val canClickBlock = mayClickBlock &&
       !block.isAirBlock(world, x, y, z) &&
       FluidRegistry.lookupFluidForBlock(block) == null &&
       !block.isInstanceOf[BlockFluid]
     if (!canClickBlock) {
       return 0
     }

     block.onBlockClicked(world, x, y, z, this)
     world.extinguishFire(this, x, y, z, side)

     val isBlockUnbreakable = block.getBlockHardness(world, x, y, z) < 0
     val canDestroyBlock = !isBlockUnbreakable && block.canEntityDestroy(world, x, y, z, this)
     if (!canDestroyBlock) {
       return 0
     }

     if (world.getWorldInfo.getGameType.isAdventure && !isCurrentToolAdventureModeExempt(x, y, z)) {
       return 0
     }

     val cobwebOverride = block == Block.web && Settings.get.screwCobwebs

     if (!ForgeHooks.canHarvestBlock(block, this, metadata) && !cobwebOverride) {
       return 0
     }

     val stack = getCurrentEquippedItem
     if (stack != null && stack.getItem.onBlockStartBreak(stack, x, y, z, this)) {
       return 0
     }

     world.playAuxSFXAtEntity(this, 2001, x, y, z, blockId + (metadata << 12))

     val hardness = block.getBlockHardness(world, x, y, z)
     val strength = getCurrentPlayerStrVsBlock(block, false, metadata)
     val breakTime =
       if (cobwebOverride) Settings.get.swingDelay
       else hardness * 1.5 / strength

     if (stack != null) {
       val oldDamage = stack.getItemDamage
       stack.onBlockDestroyed(world, blockId, x, y, z, this)
       if (stack.stackSize == 0) {
         destroyCurrentEquippedItem()
       }
       else {
         tryRepair(stack, oldDamage)
       }
     }

     val itemsBefore = entitiesInBlock[EntityItem](x, y, z)
     block.onBlockHarvested(world, x, y, z, metadata, this)
     if (block.removeBlockByPlayer(world, this, x, y, z)) {
       block.onBlockDestroyedByPlayer(world, x, y, z, metadata)
       // Note: the block has been destroyed by `removeBlockByPlayer`. This
       // check only serves to test whether the block can drop anything at all.
       if (block.canHarvestBlock(this, metadata)) {
         block.harvestBlock(world, this, x, y, z, metadata)
         val itemsAfter = entitiesInBlock[EntityItem](x, y, z)
         val itemsDropped = itemsAfter -- itemsBefore
         for (drop <- itemsDropped) {
           drop.delayBeforeCanPickup = 0
           drop.onCollideWithPlayer(this)
         }
       }
       if (stack != null) {
         robot.addXp(Settings.get.robotActionXp)
       }
       return math.max(breakTime * Settings.get.harvestRatio * math.max(1 - robot.level * Settings.get.harvestSpeedBoostPerLevel, 0), 0.05)
     }
     0
   }

   override def dropPlayerItemWithRandomChoice(stack: ItemStack, inPlace: Boolean) =
     robot.spawnStackInWorld(stack, if (inPlace) ForgeDirection.UNKNOWN else robot.facing)

   private def tryRepair(stack: ItemStack, oldDamage: Int) {
     val needsRepairing = stack.isItemStackDamageable && stack.getItemDamage > oldDamage
     val damageRate = Settings.get.itemDamageRate * math.max(1 - robot.level * Settings.get.toolEfficiencyPerLevel, 0)
     val shouldRepair = needsRepairing && getRNG.nextDouble() >= damageRate
     if (shouldRepair) {
       // If an item takes a lot of damage at once we don't necessarily want to
       // make *all* of that damage go away. Instead we scale it according to
       // our damage probability. This makes sure we don't discard massive
       // damage spikes (e.g. on axes when using the TreeCapitator mod or such).
       val addedDamage = ((stack.getItemDamage - oldDamage) * damageRate).toInt
       stack.setItemDamage(oldDamage + addedDamage)
     }
   }

   private def tryPlaceBlockWhileHandlingFunnySpecialCases(stack: ItemStack, x: Int, y: Int, z: Int, side: Int, hitX: Float, hitY: Float, hitZ: Float) = {
     val fakeEyeHeight = if (rotationPitch < 0 && isSomeKindOfPiston(stack)) 1.82 else 0
     setPosition(posX, posY - fakeEyeHeight, posZ)
     val didPlace = stack.tryPlaceItemIntoWorld(this, world, x, y, z, side, hitX, hitY, hitZ)
     setPosition(posX, posY + fakeEyeHeight, posZ)
     if (didPlace) {
       robot.addXp(Settings.get.robotActionXp)
     }
     didPlace
   }

   private def isSomeKindOfPiston(stack: ItemStack) =
     stack.getItem match {
       case itemBlock: ItemBlock if itemBlock.getBlockID > 0 =>
         val block = Block.blocksList(itemBlock.getBlockID)
         block != null && block.isInstanceOf[BlockPistonBase]
       case _ => false
     }

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

   override def addExhaustion(amount: Float) {
     if (Settings.get.robotExhaustionCost > 0) {
       robot.computer.node.changeBuffer(-Settings.get.robotExhaustionCost * amount)
     }
     robot.addXp(Settings.get.robotExhaustionXpRate * amount)
   }

   override def openGui(mod: AnyRef, modGuiId: Int, world: World, x: Int, y: Int, z: Int) {}

   override def displayGUIMerchant(merchant: IMerchant, name: String) {
     merchant.setCustomer(null)
   }

   override def closeScreen() {}

   override def swingItem() {}

   override def canAttackPlayer(player: EntityPlayer) =
     Settings.get.canAttackPlayers && super.canAttackPlayer(player)

   override def canEat(value: Boolean) = false

   override def isPotionApplicable(effect: PotionEffect) = false

   override def attackEntityAsMob(entity: Entity) = false

   override def attackEntityFrom(source: DamageSource, damage: Float) = false

   override def isEntityInvulnerable = true

   override def heal(amount: Float) {}

   override def setHealth(value: Float) {}

   override def setDead() = isDead = true

   override def onDeath(source: DamageSource) {}

   override def onUpdate() {}

   override def onLivingUpdate() {}

   override def onItemPickup(entity: Entity, count: Int) {}

   override def setCurrentItemOrArmor(slot: Int, stack: ItemStack) {}

   override def setRevengeTarget(entity: EntityLivingBase) {}

   override def setLastAttacker(entity: Entity) {}

   override def mountEntity(entity: Entity) {}

   override def travelToDimension(dimension: Int) {}

   override def sleepInBedAt(x: Int, y: Int, z: Int) = EnumStatus.OTHER_PROBLEM

   def canCommandSenderUseCommand(i: Int, s: String) = false

   def sendChatToPlayer(message: ChatMessageComponent) {}
 }
	package li.cil.oc.server.component.robot

	import li.cil.oc.Settings
	import li.cil.oc.common.tileentity
	import li.cil.oc.util.mods.{IndustrialCraft2, PortalGun}
	import net.minecraft.block.{BlockPistonBase, BlockFluid, Block}
	import net.minecraft.entity.item.EntityItem
	import net.minecraft.entity.player.{EnumStatus, EntityPlayer}
	import net.minecraft.entity.{IMerchant, EntityLivingBase, Entity}
	import net.minecraft.item.{ItemBlock, ItemStack}
	import net.minecraft.potion.PotionEffect
	import net.minecraft.server.MinecraftServer
	import net.minecraft.util._
	import net.minecraft.world.World
	import net.minecraftforge.common.{ForgeHooks, ForgeDirection}
	import net.minecraftforge.event.entity.player.PlayerInteractEvent.Action
	import net.minecraftforge.event.{Event, ForgeEventFactory}
	import net.minecraftforge.fluids.FluidRegistry
	import scala.collection.convert.WrapAsScala._
	import scala.reflect._

	class Player(val robot: tileentity.Robot) extends EntityPlayer(robot.world, Settings.get.nameFormat.replace("$player$", robot.owner).replace("$random$", (robot.world.rand.nextInt(0xFFFFFF) + 1).toString)) {
	capabilities.allowFlying = true
	capabilities.disableDamage = true
	capabilities.isFlying = true
	onGround = true
	yOffset = 0.5f
	eyeHeight = 0f
	setSize(1, 1)

	val robotInventory = new Inventory(this)
	inventory = robotInventory

	var facing, side = ForgeDirection.UNKNOWN

	def world = robot.worldObj

	override def getPlayerCoordinates = new ChunkCoordinates(robot.x, robot.y, robot.z)

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

	def updatePositionAndRotation(facing: ForgeDirection, side: ForgeDirection) {
	this.facing = facing
	this.side = side
	// Slightly offset in robot's facing to avoid glitches (e.g. Portal Gun).
	val direction = Vec3.createVectorHelper(
	facing.offsetX + side.offsetX * 0.5 + robot.facing.offsetX * 0.01,
	facing.offsetY + side.offsetY * 0.5 + robot.facing.offsetY * 0.01,
	facing.offsetZ + side.offsetZ * 0.5 + robot.facing.offsetZ * 0.01).normalize()
	val yaw = Math.toDegrees(-Math.atan2(direction.xCoord, direction.zCoord)).toFloat
	val pitch = Math.toDegrees(-Math.atan2(direction.yCoord, Math.sqrt((direction.xCoord * direction.xCoord) + (direction.zCoord * direction.zCoord)))).toFloat * 0.99f
	setLocationAndAngles(robot.x + 0.5, robot.y, robot.z + 0.5, yaw, pitch)
	prevRotationPitch = rotationPitch
	prevRotationYaw = rotationYaw
	}

	def closestEntity[Type <: Entity : ClassTag](side: ForgeDirection = facing) = {
	val (x, y, z) = (robot.x + side.offsetX, robot.y + side.offsetY, robot.z + side.offsetZ)
	val bounds = AxisAlignedBB.getAABBPool.getAABB(x, y, z, x + 1, y + 1, z + 1)
	Option(world.findNearestEntityWithinAABB(classTag[Type].runtimeClass, bounds, this)).map(_.asInstanceOf[Type])
	}

	def entitiesOnSide[Type <: Entity : ClassTag](side: ForgeDirection) = {
	val (x, y, z) = (robot.x + side.offsetX, robot.y + side.offsetY, robot.z + side.offsetZ)
	entitiesInBlock[Type](x, y, z)
	}

	def entitiesInBlock[Type <: Entity : ClassTag](x: Int, y: Int, z: Int) = {
	val bounds = AxisAlignedBB.getAABBPool.getAABB(x, y, z, x + 1, y + 1, z + 1)
	world.getEntitiesWithinAABB(classTag[Type].runtimeClass, bounds).map(_.asInstanceOf[Type])
	}

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

	override def attackTargetEntityWithCurrentItem(entity: Entity) {
	entity match {
	case player: EntityPlayer if !canAttackPlayer(player) => // Avoid player damage.
	case _ =>
	val stack = getCurrentEquippedItem
	val oldDamage = if (stack != null) getCurrentEquippedItem.getItemDamage else 0
	super.attackTargetEntityWithCurrentItem(entity)
	if (stack != null && entity.isDead) {
	robot.addXp(Settings.get.robotActionXp)
	}
	if (stack != null && stack.stackSize > 0) {
	tryRepair(stack, oldDamage)
	}
	}
	}

	override def interactWith(entity: Entity) = {
	val stack = getCurrentEquippedItem
	val oldDamage = if (stack != null) getCurrentEquippedItem.getItemDamage else 0
	val result = super.interactWith(entity)
	if (stack != null && stack.stackSize > 0) {
	tryRepair(stack, oldDamage)
	}
	result
	}

	def activateBlockOrUseItem(x: Int, y: Int, z: Int, side: Int, hitX: Float, hitY: Float, hitZ: Float, duration: Double): ActivationType.Value = {
	val event = ForgeEventFactory.onPlayerInteract(this, Action.RIGHT_CLICK_BLOCK, x, y, z, side)
	if (event.isCanceled \|\| event.useBlock == Event.Result.DENY) {
	return ActivationType.None
	}

	val stack = inventory.getCurrentItem
	val item = if (stack != null) stack.getItem else null
	if (!PortalGun.isPortalGun(stack)) {
	if (item != null && item.onItemUseFirst(stack, this, world, x, y, z, side, hitX, hitY, hitZ)) {
	if (stack.stackSize <= 0) ForgeEventFactory.onPlayerDestroyItem(this, stack)
	if (stack.stackSize <= 0) inventory.setInventorySlotContents(0, null)
	return ActivationType.ItemUsed
	}
	}

	val blockId = world.getBlockId(x, y, z)
	val block = Block.blocksList(blockId)
	val canActivate = block != null && Settings.get.allowActivateBlocks
	val shouldActivate = canActivate && (!isSneaking \|\| (item == null \|\| item.shouldPassSneakingClickToBlock(world, x, y, z)))
	if (shouldActivate && block.onBlockActivated(world, x, y, z, this, side, hitX, hitY, hitZ)) {
	return ActivationType.BlockActivated
	}

	if (stack != null) {
	val didPlace = tryPlaceBlockWhileHandlingFunnySpecialCases(stack, x, y, z, side, hitX, hitY, hitZ)
	if (stack.stackSize <= 0) ForgeEventFactory.onPlayerDestroyItem(this, stack)
	if (stack.stackSize <= 0) inventory.setInventorySlotContents(0, null)
	if (didPlace) {
	return ActivationType.ItemPlaced
	}

	if (tryUseItem(stack, duration)) {
	return ActivationType.ItemUsed
	}
	}

	ActivationType.None
	}

	def useEquippedItem(duration: Double) = {
	val event = ForgeEventFactory.onPlayerInteract(this, Action.RIGHT_CLICK_AIR, 0, 0, 0, -1)
	if (!event.isCanceled && event.useItem != Event.Result.DENY) {
	tryUseItem(getCurrentEquippedItem, duration)
	}
	else false
	}

	private def tryUseItem(stack: ItemStack, duration: Double) = {
	clearItemInUse()
	stack != null && stack.stackSize > 0 &&
	(Settings.get.allowUseItemsWithDuration \|\| stack.getMaxItemUseDuration <= 0) &&
	(!PortalGun.isPortalGun(stack) \|\| PortalGun.isStandardPortalGun(stack)) && {
	val oldSize = stack.stackSize
	val oldDamage = if (stack != null) stack.getItemDamage else 0
	val oldData = if (stack.hasTagCompound) stack.getTagCompound.copy() else null
	val heldTicks = math.max(0, math.min(stack.getMaxItemUseDuration, (duration * 20).toInt))
	val newStack = if (IndustrialCraft2.isMiningLaser(stack)) {
	// Fire the mining laser from a little bit ahead of us, to avoid hitting
	// the robot itself.
	val offset = facing
	posX += offset.offsetX * 0.5
	posY += offset.offsetY * 0.5
	posZ += offset.offsetZ * 0.5
	val result = stack.useItemRightClick(world, this)
	posX -= offset.offsetX * 0.5
	posY -= offset.offsetY * 0.5
	posZ -= offset.offsetZ * 0.5
	result
	}
	else stack.useItemRightClick(world, this)
	if (isUsingItem) {
	getItemInUse.onPlayerStoppedUsing(world, this, getItemInUse.getMaxItemUseDuration - heldTicks)
	clearItemInUse()
	}
	robot.computer.pause(heldTicks / 20.0)
	// These are functions to avoid null pointers if newStack is null.
	def sizeOrDamageChanged = newStack.stackSize != oldSize \|\| newStack.getItemDamage != oldDamage
	def tagChanged = (oldData == null && newStack.hasTagCompound) \|\| (oldData != null && !newStack.hasTagCompound) \|\|
	(oldData != null && newStack.hasTagCompound && !oldData.equals(newStack.getTagCompound))
	val stackChanged = newStack != stack \|\| (newStack != null && (sizeOrDamageChanged \|\| tagChanged \|\| PortalGun.isStandardPortalGun(stack)))
	if (newStack == stack && stack.stackSize > 0) {
	tryRepair(stack, oldDamage)
	}
	stackChanged && {
	if (newStack.stackSize <= 0) ForgeEventFactory.onPlayerDestroyItem(this, newStack)
	if (newStack.stackSize > 0) inventory.setInventorySlotContents(0, newStack)
	else inventory.setInventorySlotContents(0, null)
	true
	}
	}
	}

	def placeBlock(stack: ItemStack, x: Int, y: Int, z: Int, side: Int, hitX: Float, hitY: Float, hitZ: Float): Boolean = {
	val event = ForgeEventFactory.onPlayerInteract(this, Action.RIGHT_CLICK_BLOCK, x, y, z, side)
	if (event.isCanceled) {
	return false
	}

	event.useBlock == Event.Result.DENY \|\| {
	val result = tryPlaceBlockWhileHandlingFunnySpecialCases(stack, x, y, z, side, hitX, hitY, hitZ)
	if (stack.stackSize <= 0) ForgeEventFactory.onPlayerDestroyItem(this, stack)
	result
	}
	}

	def clickBlock(x: Int, y: Int, z: Int, side: Int): Double = {
	val event = ForgeEventFactory.onPlayerInteract(this, Action.LEFT_CLICK_BLOCK, x, y, z, side)
	if (event.isCanceled) {
	return 0
	}

	// TODO Is this already handled via the event?
	if (MinecraftServer.getServer.isBlockProtected(world, x, y, z, this)) {
	return 0
	}

	val blockId = world.getBlockId(x, y, z)
	val block = Block.blocksList(blockId)
	val metadata = world.getBlockMetadata(x, y, z)
	val mayClickBlock = event.useBlock != Event.Result.DENY && blockId > 0 && block != null
	val canClickBlock = mayClickBlock &&
	!block.isAirBlock(world, x, y, z) &&
	FluidRegistry.lookupFluidForBlock(block) == null &&
	!block.isInstanceOf[BlockFluid]
	if (!canClickBlock) {
	return 0
	}

	block.onBlockClicked(world, x, y, z, this)
	world.extinguishFire(this, x, y, z, side)

	val isBlockUnbreakable = block.getBlockHardness(world, x, y, z) < 0
	val canDestroyBlock = !isBlockUnbreakable && block.canEntityDestroy(world, x, y, z, this)
	if (!canDestroyBlock) {
	return 0
	}

	if (world.getWorldInfo.getGameType.isAdventure && !isCurrentToolAdventureModeExempt(x, y, z)) {
	return 0
	}

	val cobwebOverride = block == Block.web && Settings.get.screwCobwebs

	if (!ForgeHooks.canHarvestBlock(block, this, metadata) && !cobwebOverride) {
	return 0
	}

	val stack = getCurrentEquippedItem
	if (stack != null && stack.getItem.onBlockStartBreak(stack, x, y, z, this)) {
	return 0
	}

	world.playAuxSFXAtEntity(this, 2001, x, y, z, blockId + (metadata << 12))

	val hardness = block.getBlockHardness(world, x, y, z)
	val strength = getCurrentPlayerStrVsBlock(block, false, metadata)
	val breakTime =
	if (cobwebOverride) Settings.get.swingDelay
	else hardness * 1.5 / strength

	if (stack != null) {
	val oldDamage = stack.getItemDamage
	stack.onBlockDestroyed(world, blockId, x, y, z, this)
	if (stack.stackSize == 0) {
	destroyCurrentEquippedItem()
	}
	else {
	tryRepair(stack, oldDamage)
	}
	}

	val itemsBefore = entitiesInBlock[EntityItem](x, y, z)
	block.onBlockHarvested(world, x, y, z, metadata, this)
	if (block.removeBlockByPlayer(world, this, x, y, z)) {
	block.onBlockDestroyedByPlayer(world, x, y, z, metadata)
	// Note: the block has been destroyed by `removeBlockByPlayer`. This
	// check only serves to test whether the block can drop anything at all.
	if (block.canHarvestBlock(this, metadata)) {
	block.harvestBlock(world, this, x, y, z, metadata)
	val itemsAfter = entitiesInBlock[EntityItem](x, y, z)
	val itemsDropped = itemsAfter -- itemsBefore
	for (drop <- itemsDropped) {
	drop.delayBeforeCanPickup = 0
	drop.onCollideWithPlayer(this)
	}
	}
	if (stack != null) {
	robot.addXp(Settings.get.robotActionXp)
	}
	return math.max(breakTime * Settings.get.harvestRatio * math.max(1 - robot.level * Settings.get.harvestSpeedBoostPerLevel, 0), 0.05)
	}
	0
	}

	override def dropPlayerItemWithRandomChoice(stack: ItemStack, inPlace: Boolean) =
	robot.spawnStackInWorld(stack, if (inPlace) ForgeDirection.UNKNOWN else robot.facing)

	private def tryRepair(stack: ItemStack, oldDamage: Int) {
	val needsRepairing = stack.isItemStackDamageable && stack.getItemDamage > oldDamage
	val damageRate = Settings.get.itemDamageRate * math.max(1 - robot.level * Settings.get.toolEfficiencyPerLevel, 0)
	val shouldRepair = needsRepairing && getRNG.nextDouble() >= damageRate
	if (shouldRepair) {
	// If an item takes a lot of damage at once we don't necessarily want to
	// make all of that damage go away. Instead we scale it according to
	// our damage probability. This makes sure we don't discard massive
	// damage spikes (e.g. on axes when using the TreeCapitator mod or such).
	val addedDamage = ((stack.getItemDamage - oldDamage) * damageRate).toInt
	stack.setItemDamage(oldDamage + addedDamage)
	}
	}

	private def tryPlaceBlockWhileHandlingFunnySpecialCases(stack: ItemStack, x: Int, y: Int, z: Int, side: Int, hitX: Float, hitY: Float, hitZ: Float) = {
	val fakeEyeHeight = if (rotationPitch < 0 && isSomeKindOfPiston(stack)) 1.82 else 0
	setPosition(posX, posY - fakeEyeHeight, posZ)
	val didPlace = stack.tryPlaceItemIntoWorld(this, world, x, y, z, side, hitX, hitY, hitZ)
	setPosition(posX, posY + fakeEyeHeight, posZ)
	if (didPlace) {
	robot.addXp(Settings.get.robotActionXp)
	}
	didPlace
	}

	private def isSomeKindOfPiston(stack: ItemStack) =
	stack.getItem match {
	case itemBlock: ItemBlock if itemBlock.getBlockID > 0 =>
	val block = Block.blocksList(itemBlock.getBlockID)
	block != null && block.isInstanceOf[BlockPistonBase]
	case _ => false
	}

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

	override def addExhaustion(amount: Float) {
	if (Settings.get.robotExhaustionCost > 0) {
	robot.computer.node.changeBuffer(-Settings.get.robotExhaustionCost * amount)
	}
	robot.addXp(Settings.get.robotExhaustionXpRate * amount)
	}

	override def openGui(mod: AnyRef, modGuiId: Int, world: World, x: Int, y: Int, z: Int) {}

	override def displayGUIMerchant(merchant: IMerchant, name: String) {
	merchant.setCustomer(null)
	}

	override def closeScreen() {}

	override def swingItem() {}

	override def canAttackPlayer(player: EntityPlayer) =
	Settings.get.canAttackPlayers && super.canAttackPlayer(player)

	override def canEat(value: Boolean) = false

	override def isPotionApplicable(effect: PotionEffect) = false

	override def attackEntityAsMob(entity: Entity) = false

	override def attackEntityFrom(source: DamageSource, damage: Float) = false

	override def isEntityInvulnerable = true

	override def heal(amount: Float) {}

	override def setHealth(value: Float) {}

	override def setDead() = isDead = true

	override def onDeath(source: DamageSource) {}

	override def onUpdate() {}

	override def onLivingUpdate() {}

	override def onItemPickup(entity: Entity, count: Int) {}

	override def setCurrentItemOrArmor(slot: Int, stack: ItemStack) {}

	override def setRevengeTarget(entity: EntityLivingBase) {}

	override def setLastAttacker(entity: Entity) {}

	override def mountEntity(entity: Entity) {}

	override def travelToDimension(dimension: Int) {}

	override def sleepInBedAt(x: Int, y: Int, z: Int) = EnumStatus.OTHER_PROBLEM

	def canCommandSenderUseCommand(i: Int, s: String) = false

	def sendChatToPlayer(message: ChatMessageComponent) {}
	}