diff --git a/build.properties b/build.properties
index c60caa9e4..0cea0c777 100644
--- a/build.properties
+++ b/build.properties
@@ -1,7 +1,7 @@
 minecraft.version=1.7.10
 forge.version=10.13.4.1614-1.7.10
 
-oc.version=1.7.4.1
+oc.version=1.7.5.1
 
 ae2.version=rv2-beta-26
 bc.version=7.0.9
diff --git a/changelog.md b/changelog.md
index 6a43e0c37..70975ba7f 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,26 +1,69 @@
 ## New Features/Support
 
-* **Misc: when powering on, drones may fly a bit higher**
-  - will fly a above their starting block to get above nonfull blocks (such as chests)
-* Misc: more robot names
-* Misc: robot/drone swing respects harvestability of block vs tool
-* Fixed: zero sized files (bufferChanges failing to do its job)
-* Fixed: client crash when using remote terminal out of range
-* Fixed: inventory controllers now honor specified target slot
-* Fixed: T1 wireless cards now ignore properly ignore wired messages
-* Fixed: waila integration by checking for nulls with relay block
-* Fixed: practical logisitics integration by not passing null for EnumFacing
-* Fixed: locking items in hotbar when gui is open
-* Fixed: some container names localized
+**This will be the last version for Minecraft 1.11.2. Minecraft 1.7.10, 1.10.2, and 1.12.2 will keep receiving updates.**
+
+* **Added: Barcode reader upgrade!** (AmandaCameron)
+  - An Analyzer can now be installed in a Tablet as an upgrade.
+  - Provides the `barcode_reader` component.
+  - When clicking on a block with a tablet containing this upgrade, the `tablet_use` event will contain information the Analyzer would normally reveal.
+  - This allows getting components' addresses into OC directly by clicking on blocks. 
+* Added: Config option to set max signal queue size (default 256, the same as before).
+  - Signals pushed to the computer when the queue is full are dropped.
+* Added: Allow different HTTP request methods in `internet.request` (the method to use is now the fourth optional argument).
+* Added: You can now install Angel Upgrades in drones (Minecraft 1.12 only).
+* Added: Chargers can now charge items in nearby players' inventories.
+* Added: Experience Upgrade now shows its level in its tooltip (Minecraft 1.12 only).
+* Added: Extended item information to Thaumcraft Essentia Jars on Minecraft 1.12 (seebs)
+* Added: Support for SimpleLogic bundled cables on Minecraft 1.12. (asiekierka)
+* Added: Re-added Wireless Redstone (ChickenBones Edition) support on Minecraft 1.12.
+* Misc: Hide bounding box wireframe on screens while not sneaking
+* Misc: More robot names.
+* Misc: Updated the chinese translation of the manual. (3TUSK, ZeroAurora, JackyWangMislantiaJnirvana)
+* Changed: Cleaned up some wording in the config file.
+* Changed: `gpu.bind` is now faster.
+* Changed: `computer.pushSignal` now accepts tables of simple key-value pairs, but not nested tables.
+* Changed: APU tiers now correspond to their CPU tiers.
+* Changed: Putting unmanaged hard drives into a Raid now forces them into managed mode along with wiping them.
+* Fixed: Robots being unable to use buckets.
+* Fixed: Fluid dupe bug that I will _not_ explain to you.
+* Fixed: Tier 2 wireless network card not receiving wired messages.
+* Fixed: Return value of `robot.swing` when the block breaks too fast.
+* Fixed: Server racks not sending messages to mountables quickly enough.
+* Fixed: Relays not displaying traffic accurately.
+* Fixed: Relay message relaying issues.
+* Fixed: `itemDamageRate` config option set to 0 not working. (svitoos)
+* Fixed: Crash with `hologram.copy`.
+* Fixed: Geolyzer's `isSunVisible`.
+* Fixed: Crash with remote terminals.
+* Fixed: A Robot without inventory deleting the items it drops.
+* Fixed: `too long without yielding` sometimes not triggering when it should.
+* Fixed: Crash when blowing up a computer while code is running.
+* Fixed: Another fluid dupe bug that I will definitely not explain to you either. Stop asking.
+* Fixed: Available architectures not always being what they should be.
+* Fixed: Crashes in AE2 integration.
+* Fixed: The AE2 ME Interface part not having network control.
+* Fixed: AE2 ME cells not having all intended information on inspection. (wkalinin)
+* Fixed: Crash with AE2 when power usage is disabled.
+* Fixed: AE2 interface not being recognized as components when channels are disabled.
+* Fixed: Some AE2 integration not working on 1.7.10. (wkalinin)
+* Fixed: Another crash with AE2 when power usage is disabled.
+* Fixed: Specific AE2 integration being very slow.
+* Fixed: Crash with IC2 Classic.
 
 ## OpenOS fixes/improvements
 
-* Fixed: fixed event timing issues when pulling smaller timeouts than a current timer
-* Added: tty handles '\v' code to move cursor down one line
-* Misc: some openos cleanup
-* Misc: more memory savings
-* Misc: slightly faster boot up times
+* Fixed: Error related to installing OPPM.
+* Fixed: OpenOS timers being starved during blocking pulls.
+* Fixed: `reset` alias to reset the screen resolution to its maximum.
+* Fixed: Certain TCP connections in Network loot disk
+* Fixed: Various vt100 fixes
+* Fixed: Now errors properly on using `print` with bad `__string` metamethods 
 
 ## List of contributors
-payonel, Wilma456
-Anar Abdullayev, TheCodex6824
+payonel,  
+AmandaCameron, wkalinin,  
+LizzyTrickster, svitoos,  
+kchanakira, seebs,  
+asiekierka,  
+3TUSK, ZeroAurora,  
+JackyWangMislantiaJnirvana
diff --git a/src/main/resources/assets/opencomputers/lang/en_US.lang b/src/main/resources/assets/opencomputers/lang/en_US.lang
index daf682cf5..c96fa6c86 100644
--- a/src/main/resources/assets/opencomputers/lang/en_US.lang
+++ b/src/main/resources/assets/opencomputers/lang/en_US.lang
@@ -47,8 +47,8 @@ item.oc.AbstractBusCard.name=Abstract Bus Card
 item.oc.Acid.name=Grog
 item.oc.ALU.name=Arithmetic Logic Unit (ALU)
 item.oc.Analyzer.name=Analyzer
-item.oc.APU0.name=Accelerated Processing Unit (APU) (Tier 1)
-item.oc.APU1.name=Accelerated Processing Unit (APU) (Tier 2)
+item.oc.APU0.name=Accelerated Processing Unit (APU) (Tier 2)
+item.oc.APU1.name=Accelerated Processing Unit (APU) (Tier 3)
 item.oc.APU2.name=Accelerated Processing Unit (APU) (Creative)
 item.oc.ArrowKeys.name=Arrow Keys
 item.oc.ButtonGroup.name=Button Group
diff --git a/src/main/resources/assets/opencomputers/loot/openos/lib/core/boot.lua b/src/main/resources/assets/opencomputers/loot/openos/lib/core/boot.lua
index 4e51bf576..4c7c138ab 100644
--- a/src/main/resources/assets/opencomputers/loot/openos/lib/core/boot.lua
+++ b/src/main/resources/assets/opencomputers/loot/openos/lib/core/boot.lua
@@ -1,7 +1,7 @@
 -- called from /init.lua
 local raw_loadfile = ...
 
-_G._OSVERSION = "OpenOS 1.7.4"
+_G._OSVERSION = "OpenOS 1.7.5"
 
 -- luacheck: globals component computer unicode _OSVERSION
 local component = component
diff --git a/src/main/resources/assets/opencomputers/lua/machine.lua b/src/main/resources/assets/opencomputers/lua/machine.lua
index d2751bfb0..f0e137b04 100644
--- a/src/main/resources/assets/opencomputers/lua/machine.lua
+++ b/src/main/resources/assets/opencomputers/lua/machine.lua
@@ -41,6 +41,7 @@ if hookInterval < 1000 then hookInterval = 1000 end
 
 local deadline = math.huge
 local hitDeadline = false
+local tooLongWithoutYielding = setmetatable({},  { __tostring = function() return "too long without yielding" end})
 local function checkDeadline()
   if computer.realTime() > deadline then
     debug.sethook(coroutine.running(), checkDeadline, "", 1)
@@ -48,9 +49,16 @@ local function checkDeadline()
       deadline = deadline + 0.5
     end
     hitDeadline = true
-    error("too long without yielding", 0)
+    error(tooLongWithoutYielding)
   end
 end
+local function pcallTimeoutCheck(...)
+  local ok, timeout = ...
+  if timeout == tooLongWithoutYielding then
+    return ok, tostring(tooLongWithoutYielding)
+  end
+  return ...
+end
 
 -------------------------------------------------------------------------------
 
@@ -739,9 +747,7 @@ sandbox = {
   next = next,
   pairs = pairs,
   pcall = function(...)
-    local result = table.pack(pcall(...))
-    checkDeadline()
-    return table.unpack(result, 1, result.n)
+    return pcallTimeoutCheck(pcall(...))
   end,
   print = nil, -- in boot/*_base.lua
   rawequal = rawequal,
@@ -785,18 +791,23 @@ sandbox = {
   tonumber = tonumber,
   tostring = tostring,
   type = type,
-  _VERSION = _VERSION:match("5.3") and "Lua 5.3" or "Lua 5.2",
+  _VERSION = _VERSION:match("Luaj") and "Luaj" or _VERSION:match("5.3") and "Lua 5.3" or "Lua 5.2",
   xpcall = function(f, msgh, ...)
     local handled = false
+    checkArg(2, msgh, "function")
     local result = table.pack(xpcall(f, function(...)
-      if handled then
+      if (...) == tooLongWithoutYielding then
+        return tooLongWithoutYielding
+      elseif handled then
         return ...
       else
         handled = true
         return msgh(...)
       end
     end, ...))
-    checkDeadline()
+    if result[2] == tooLongWithoutYielding then
+      result = table.pack(result[1], select(2, pcallTimeoutCheck(pcall(msgh, tostring(tooLongWithoutYielding)))))
+    end
     return table.unpack(result, 1, result.n)
   end,
 
@@ -1503,4 +1514,4 @@ end
 
 -- JNLua converts the coroutine to a string immediately, so we can't get the
 -- traceback later. Because of that we have to do the error handling here.
-return pcall(main)
+return pcallTimeoutCheck(pcall(main))
diff --git a/src/main/resources/assets/opencomputers/robot.names b/src/main/resources/assets/opencomputers/robot.names
index 8ba9c910f..33fdcdf7e 100644
--- a/src/main/resources/assets/opencomputers/robot.names
+++ b/src/main/resources/assets/opencomputers/robot.names
@@ -88,6 +88,7 @@ Michiyo            # Contributor
 Mycroft Holmes     # The Moon Is a Harsh Mistress
 Pac-Man            # Pac-Man
 Optimus            # Transformers. Seperated "Optimus Prime" into two names, as both are quite fitting robot names.
+Ordis              # Warframe
 P-Body             # Portal
 Pintsize           # Questionable Content
 PixelToast         # Contributor
diff --git a/src/main/scala/li/cil/oc/common/EventHandler.scala b/src/main/scala/li/cil/oc/common/EventHandler.scala
index 35e526e60..093f22f87 100644
--- a/src/main/scala/li/cil/oc/common/EventHandler.scala
+++ b/src/main/scala/li/cil/oc/common/EventHandler.scala
@@ -193,7 +193,7 @@ object EventHandler {
     if (SideTracker.isServer) e.player match {
       case _: FakePlayer => // Nope
       case player: EntityPlayerMP =>
-        if (!LuaStateFactory.isAvailable) {
+        if (!LuaStateFactory.isAvailable && !LuaStateFactory.luajRequested) {
           player.addChatMessage(Localization.Chat.WarningLuaFallback)
         }
         if (Recipes.hadErrors) {
diff --git a/src/main/scala/li/cil/oc/common/Proxy.scala b/src/main/scala/li/cil/oc/common/Proxy.scala
index 3e92416b2..ce7c6d1ac 100644
--- a/src/main/scala/li/cil/oc/common/Proxy.scala
+++ b/src/main/scala/li/cil/oc/common/Proxy.scala
@@ -79,7 +79,7 @@ class Proxy {
     if (LuaStateFactory.include53) {
       api.Machine.add(classOf[NativeLua53Architecture])
     }
-    if (api.Machine.architectures.size == 0) {
+    if (LuaStateFactory.includeLuaJ) {
       api.Machine.add(classOf[LuaJLuaArchitecture])
     }
     
diff --git a/src/main/scala/li/cil/oc/common/tileentity/Charger.scala b/src/main/scala/li/cil/oc/common/tileentity/Charger.scala
index 48d6c4651..58e7ba876 100644
--- a/src/main/scala/li/cil/oc/common/tileentity/Charger.scala
+++ b/src/main/scala/li/cil/oc/common/tileentity/Charger.scala
@@ -36,6 +36,7 @@ class Charger extends traits.Environment with traits.PowerAcceptor with traits.R
     create()
 
   val connectors = mutable.Set.empty[Chargeable]
+  val equipment = mutable.Set.empty[ItemStack]
 
   var chargeSpeed = 0.0
 
@@ -79,6 +80,14 @@ class Charger extends traits.Environment with traits.PowerAcceptor with traits.R
 
   override def canUpdate = true
 
+  private def chargeStack(stack: ItemStack, charge: Double): Unit = {
+    if (stack != null && charge > 0) {
+      val offered = charge + node.changeBuffer(-charge)
+      val surplus = ItemCharge.charge(stack, offered)
+      node.changeBuffer(surplus)
+    }
+  }
+
   override def updateEntity() {
     super.updateEntity()
 
@@ -104,11 +113,16 @@ class Charger extends traits.Environment with traits.PowerAcceptor with traits.R
         val charge = Settings.get.chargeRateTablet * chargeSpeed * Settings.get.tickFrequency
         canCharge ||= charge > 0 && node.globalBuffer >= charge * 0.5
         if (canCharge) {
-          (0 until getSizeInventory).map(getStackInSlot).foreach(stack => if (stack != null) {
-            val offered = charge + node.changeBuffer(-charge)
-            val surplus = ItemCharge.charge(stack, offered)
-            node.changeBuffer(surplus)
-          })
+          (0 until getSizeInventory).map(getStackInSlot).foreach(chargeStack(_, charge))
+        }
+      }
+
+      // Charging of equipment
+      {
+        val charge = Settings.get.chargeRateTablet * chargeSpeed * Settings.get.tickFrequency
+        canCharge ||= charge > 0 && node.globalBuffer >= charge * 0.5
+        if (canCharge) {
+          equipment.foreach(chargeStack(_, charge))
         }
       }
 
@@ -219,17 +233,35 @@ class Charger extends traits.Environment with traits.PowerAcceptor with traits.R
     }
 
     val players = world.getEntitiesWithinAABB(classOf[EntityPlayer], bounds).collect {
-      case player: EntityPlayer if api.Nanomachines.hasController(player) => new PlayerChargeable(player)
+      case player: EntityPlayer => player
+    }
+
+    val chargeablePlayers = players.collect {
+      case player if api.Nanomachines.hasController(player) => new PlayerChargeable(player)
     }
 
     // Only update list when we have to, keeps pointless block updates to a minimum.
 
-    val newConnectors = robots ++ drones ++ players
+    val newConnectors = robots ++ drones ++ chargeablePlayers
     if (connectors.size != newConnectors.length || (connectors.nonEmpty && (connectors -- newConnectors).nonEmpty)) {
       connectors.clear()
       connectors ++= newConnectors
       world.notifyBlocksOfNeighborChange(x, y, z, block)
     }
+
+    // scan players for chargeable equipment
+    equipment.clear()
+    players.foreach {
+      player => player.inventory.mainInventory.foreach {
+        stack: ItemStack =>
+          if (Option(Driver.driverFor(stack, getClass)) match {
+            case Some(driver) if driver.slot(stack) == Slot.Tablet => true
+            case _ => ItemCharge.canCharge(stack)
+          }) {
+            equipment += stack
+          }
+      }
+    }
   }
 
   trait Chargeable {
diff --git a/src/main/scala/li/cil/oc/common/tileentity/Raid.scala b/src/main/scala/li/cil/oc/common/tileentity/Raid.scala
index 590a56cea..8486637fa 100644
--- a/src/main/scala/li/cil/oc/common/tileentity/Raid.scala
+++ b/src/main/scala/li/cil/oc/common/tileentity/Raid.scala
@@ -10,6 +10,7 @@ import li.cil.oc.api.Driver
 import li.cil.oc.api.fs.Label
 import li.cil.oc.api.network.Analyzable
 import li.cil.oc.api.network.Visibility
+import li.cil.oc.common.item.data.DriveData
 import li.cil.oc.common.Slot
 import li.cil.oc.server.component.FileSystem
 import li.cil.oc.server.{PacketSender => ServerPacketSender}
@@ -79,6 +80,14 @@ class Raid extends traits.Environment with traits.Inventory with traits.Rotatabl
   def tryCreateRaid(id: String) {
     if (items.count(_.isDefined) == items.length && filesystem.fold(true)(fs => fs.node == null || fs.node.address != id)) {
       filesystem.foreach(fs => if (fs.node != null) fs.node.remove())
+      items.foreach(fs => fs match {
+        case Some(fsStack) =>
+          val drive = new DriveData(fsStack)
+          drive.lockInfo = ""
+          drive.isUnmanaged = false
+          drive.save(fsStack)
+        case _ => // should not happen but is safe to ignore
+      })
       val fs = api.FileSystem.asManagedEnvironment(
         api.FileSystem.fromSaveDirectory(id, wipeDisksAndComputeSpace, Settings.get.bufferChanges),
         label, this, Settings.resourceDomain + ":hdd_access", 6).
diff --git a/src/main/scala/li/cil/oc/integration/appeng/NetworkControl.scala b/src/main/scala/li/cil/oc/integration/appeng/NetworkControl.scala
index 98922e55a..9fe7cb6e6 100644
--- a/src/main/scala/li/cil/oc/integration/appeng/NetworkControl.scala
+++ b/src/main/scala/li/cil/oc/integration/appeng/NetworkControl.scala
@@ -101,7 +101,7 @@ trait NetworkControl[AETile >: Null <: TileEntity with IGridProxyable with IActi
       case (key: String, value: AnyRef) => (key, value)
     }
     result(allCraftables
-      .collect{ case aeCraftItem if matches(convert(aeCraftItem), filter) => new NetworkControl.Craftable(tile, aeCraftItem) }
+      .collect{ case aeCraftItem if filter.isEmpty || matches(convert(aeCraftItem), filter) => new NetworkControl.Craftable(tile, aeCraftItem) }
       .toArray)
   }
 
diff --git a/src/main/scala/li/cil/oc/server/PacketSender.scala b/src/main/scala/li/cil/oc/server/PacketSender.scala
index e86ca626a..1d9279ffe 100644
--- a/src/main/scala/li/cil/oc/server/PacketSender.scala
+++ b/src/main/scala/li/cil/oc/server/PacketSender.scala
@@ -260,8 +260,10 @@ object PacketSender {
       val x = (xz >> 8).toByte
       val z = xz.toByte
       pb.writeShort(xz)
-      pb.writeInt(t.volume(x + z * t.width))
-      pb.writeInt(t.volume(x + z * t.width + t.width * t.width))
+      val rangeStart: Int = x + z * t.width
+      val rangeFinal: Int = x + z * t.width + t.width * t.width
+      pb.writeInt(t.volume(rangeStart max 0 min t.volume.length - 1))
+      pb.writeInt(t.volume(rangeFinal max 0 min t.volume.length - 1))
     }
 
     pb.sendToPlayersNearTileEntity(t)
diff --git a/src/main/scala/li/cil/oc/server/agent/Player.scala b/src/main/scala/li/cil/oc/server/agent/Player.scala
index 100760bc0..796d50597 100644
--- a/src/main/scala/li/cil/oc/server/agent/Player.scala
+++ b/src/main/scala/li/cil/oc/server/agent/Player.scala
@@ -187,11 +187,11 @@ class Player(val agent: internal.Agent) extends FakePlayer(agent.world.asInstanc
   private def collectDroppedItems(itemsBefore: Iterable[EntityItem]) {
     val itemsAfter = adjacentItems
     val itemsDropped = itemsAfter -- itemsBefore
-    for (drop <- itemsDropped) {
-      
-      drop.delayBeforeCanPickup = 0
-      drop.onCollideWithPlayer(this)
-      drop.setDead()
+    if (itemsDropped.nonEmpty) {
+      for (drop <- itemsDropped) {
+        drop.delayBeforeCanPickup = 0
+        drop.onCollideWithPlayer(this)
+      }
     }
   }
 
diff --git a/src/main/scala/li/cil/oc/server/component/Agent.scala b/src/main/scala/li/cil/oc/server/component/Agent.scala
index 88be38d19..658fb27bd 100644
--- a/src/main/scala/li/cil/oc/server/component/Agent.scala
+++ b/src/main/scala/li/cil/oc/server/component/Agent.scala
@@ -288,11 +288,20 @@ trait Agent extends traits.WorldControl with traits.InventoryControl with traits
     entity.captureDrops = true
   }
 
+
   protected def endConsumeDrops(player: Player, entity: Entity) {
     entity.captureDrops = false
-    for (drop <- entity.capturedDrops) {
-      val stack = drop.getEntityItem
-      InventoryUtils.addToPlayerInventory(stack, player)
+    // this inventory size check is a HACK to preserve old behavior that a agent can suck items out
+    // of the capturedDrops. Ideally, we'd only pick up items off the ground. We could clear the
+    // capturedDrops when Player.attackTargetEntityWithCurrentItem() is called
+    // But this felt slightly less hacky, slightly
+    if (player.inventory.getSizeInventory > 0) {
+      for (drop <- entity.capturedDrops) {
+        if (!drop.isDead) {
+          val stack = drop.getEntityItem
+          InventoryUtils.addToPlayerInventory(stack, player, spawnInWorld = false)
+        }
+      }
     }
     entity.capturedDrops.clear()
   }
diff --git a/src/main/scala/li/cil/oc/server/machine/luac/LuaStateFactory.scala b/src/main/scala/li/cil/oc/server/machine/luac/LuaStateFactory.scala
index 6789e7461..9cf0302a6 100644
--- a/src/main/scala/li/cil/oc/server/machine/luac/LuaStateFactory.scala
+++ b/src/main/scala/li/cil/oc/server/machine/luac/LuaStateFactory.scala
@@ -22,24 +22,22 @@ import org.apache.commons.lang3.SystemUtils
 import scala.util.Random
 
 object LuaStateFactory {
-  def isAvailable = {
+  def isAvailable: Boolean = {
     // Force initialization of both.
     val lua52 = Lua52.isAvailable
     val lua53 = Lua53.isAvailable
     lua52 || lua53
   }
 
-  def include52 = {
-    Lua52.isAvailable && !Settings.get.forceLuaJ
-  }
+  def luajRequested: Boolean = Settings.get.forceLuaJ || Settings.get.registerLuaJArchitecture
 
-  def include53 = {
-    Lua53.isAvailable && Settings.get.enableLua53
-  }
+  def includeLuaJ: Boolean = !isAvailable || luajRequested
 
-  def default53 = {
-    include53 && Settings.get.defaultLua53
-  }
+  def include52: Boolean = Lua52.isAvailable && !Settings.get.forceLuaJ
+
+  def include53: Boolean = Lua53.isAvailable && Settings.get.enableLua53 && !Settings.get.forceLuaJ
+
+  def default53: Boolean = include53 && Settings.get.defaultLua53
 
   def setDefaultArch(stack: ItemStack): ItemStack = {
     if (default53) {
diff --git a/src/main/scala/li/cil/oc/util/FluidUtils.scala b/src/main/scala/li/cil/oc/util/FluidUtils.scala
index 91cc8a755..38de45045 100644
--- a/src/main/scala/li/cil/oc/util/FluidUtils.scala
+++ b/src/main/scala/li/cil/oc/util/FluidUtils.scala
@@ -156,7 +156,7 @@ object FluidUtils {
     override def canFill(from: ForgeDirection, fluid: Fluid): Boolean = fluid.canBePlacedInWorld
 
     override def fill(from: ForgeDirection, resource: FluidStack, doFill: Boolean): Int = {
-      if (resource != null && resource.getFluid.canBePlacedInWorld && resource.getFluid.getBlock != null) {
+      if (resource != null && resource.getFluid.canBePlacedInWorld && resource.getFluid.getBlock != null && resource.amount >= 1000) {
         if (doFill) {
           val world = position.world.get
           if (!world.isAirBlock(position) && !world.isAnyLiquid(position.bounds))
diff --git a/src/main/scala/li/cil/oc/util/InventoryUtils.scala b/src/main/scala/li/cil/oc/util/InventoryUtils.scala
index 6089f221e..fd1c2d9b3 100644
--- a/src/main/scala/li/cil/oc/util/InventoryUtils.scala
+++ b/src/main/scala/li/cil/oc/util/InventoryUtils.scala
@@ -369,7 +369,7 @@ object InventoryUtils {
   /**
    * Try inserting an item stack into a player inventory. If that fails, drop it into the world.
    */
-  def addToPlayerInventory(stack: ItemStack, player: EntityPlayer): Unit = {
+  def addToPlayerInventory(stack: ItemStack, player: EntityPlayer, spawnInWorld: Boolean = true): Unit = {
     if (stack != null) {
       if (player.inventory.addItemStackToInventory(stack)) {
         player.inventory.markDirty()
@@ -377,7 +377,7 @@ object InventoryUtils {
           player.openContainer.detectAndSendChanges()
         }
       }
-      if (stack.stackSize > 0) {
+      if (stack.stackSize > 0 && spawnInWorld) {
         player.dropPlayerItemWithRandomChoice(stack, false)
       }
     }