Placement of cables in multiblocks

src/main/java/li/cil/oc/client/PacketSender.scala

@@ -108,6 +108,11 @@ object PacketSender {
     pb.sendToServer()
   }
 
+  def sendMultiPlace() {
+    val pb = new PacketBuilder(PacketType.MultiPartPlace)
+    pb.sendToServer()
+  }
+
   def sendRobotStateRequest(dimension: Int, x: Int, y: Int, z: Int) {
     val pb = new PacketBuilder(PacketType.RobotStateRequest)
 

src/main/java/li/cil/oc/common/PacketType.scala

@@ -38,6 +38,7 @@ object PacketType extends Enumeration {
   Clipboard,
   MouseClickOrDrag,
   MouseScroll,
+  MultiPartPlace,
   RobotStateRequest,
   ServerSide,
   ServerRange = Value

src/main/java/li/cil/oc/common/multipart/EventHandler.scala

@@ -1,8 +1,92 @@
 package li.cil.oc.common.multipart
 
-/**
- * Created by lordjoda on 02.03.14.
- */
-class EventHandler {
+import net.minecraftforge.event.entity.player.{PlayerDestroyItemEvent, PlayerInteractEvent}
+import net.minecraftforge.event.ForgeSubscribe
+import net.minecraftforge.event.entity.player.PlayerInteractEvent.Action
+import net.minecraft.entity.player.EntityPlayer
+import net.minecraft.world.World
+import codechicken.lib.raytracer.RayTracer
+import codechicken.lib.vec.{Vector3, BlockCoord}
+import net.minecraft.block.Block
+import li.cil.oc.Blocks
+import codechicken.multipart.{TileMultipart, TMultiPart}
+import codechicken.lib.packet.PacketCustom
+import net.minecraft.network.packet.Packet15Place
+import net.minecraftforge.common.MinecraftForge
+import li.cil.oc.common.block.Delegator
+import li.cil.oc.client.PacketSender
+
+object EventHandler {
+
+  @ForgeSubscribe
+  def playerInteract(event: PlayerInteractEvent) {
+    if (event.action == Action.RIGHT_CLICK_BLOCK && event.entityPlayer.worldObj.isRemote) {
+      if (place(event.entityPlayer))
+        event.setCanceled(true)
+
+    }
+  }
+
+  def place(player: EntityPlayer): Boolean = {
+    val world = player.getEntityWorld
+    val hit = RayTracer.reTrace(world, player)
+    if (hit == null)
+      return false
+
+    val pos = new BlockCoord(hit.blockX, hit.blockY, hit.blockZ)
+    val held = player.getHeldItem
+    var part: TMultiPart = null
+    if (held == null)
+      return false
+
+    Delegator.subBlock(held) match {
+      case Some(subBlock) if subBlock == Blocks.cable =>
+        part = new CablePart()
+      case _ =>
+    }
+
+    if (part == null)
+      return false
+
+    //attempt to use block activated like normal and tell the server the right stuff
+    if (world.isRemote && !player.isSneaking) {
+      val f = new Vector3(hit.hitVec).add(-hit.blockX, -hit.blockY, -hit.blockZ)
+      val block = Block.blocksList(world.getBlockId(hit.blockX, hit.blockY, hit.blockZ))
+      if (block != null &&  block.onBlockActivated(world, hit.blockX, hit.blockY, hit.blockZ, player, hit.sideHit, f.x.toFloat, f.y.toFloat, f.z.toFloat)) {
+        player.swingItem()
+        PacketCustom.sendToServer(new Packet15Place(
+          hit.blockX, hit.blockY, hit.blockZ, hit.sideHit,
+          player.inventory.getCurrentItem,
+          f.x.toFloat, f.y.toFloat, f.z.toFloat))
+        return false
+      }
+    }
+
+    val tile = TileMultipart.getOrConvertTile(world, pos)
+    if (tile == null || !tile.canAddPart(part))
+      return false
+
+    if (!world.isRemote) {
+      TileMultipart.addPart(world, pos, part)
+      world.playSoundEffect(pos.x + 0.5, pos.y + 0.5, pos.z + 0.5,
+        Blocks.cable.parent.stepSound.getPlaceSound,
+        (Blocks.cable.parent.stepSound.getVolume + 1.0F) / 2.0F,
+        Blocks.cable.parent.stepSound.getPitch * 0.8F)
+      if (!player.capabilities.isCreativeMode) {
+        held.stackSize -= 1
+        if (held.stackSize == 0) {
+          player.inventory.mainInventory(player.inventory.currentItem) = null
+          MinecraftForge.EVENT_BUS.post(new PlayerDestroyItemEvent(player, held))
+        }
+      }
+    }
+    else {
+      player.swingItem()
+      //TODO
+      PacketSender.sendMultiPlace()
+    }
+    true
+  }
+
 
 }

src/main/java/li/cil/oc/common/multipart/Multipart.scala

@@ -12,7 +12,7 @@ object MultiPart extends IPartFactory with IPartConverter {
   def init() {
     MultiPartRegistry.registerConverter(this)
     MultiPartRegistry.registerParts(this, Array("oc:cable"))
-    MinecraftForge.EVENT_BUS.register(new EventHandler())
+    MinecraftForge.EVENT_BUS.register(EventHandler)
   }
 
   override def createPart(name: String, client: Boolean): TMultiPart = {

src/main/java/li/cil/oc/server/PacketHandler.scala

@@ -9,6 +9,7 @@ import li.cil.oc.server.component.machine.Machine
 import net.minecraft.entity.player.EntityPlayerMP
 import net.minecraft.util.ChatMessageComponent
 import net.minecraftforge.common.{ForgeDirection, DimensionManager}
+import li.cil.oc.common.multipart.{EventHandler, MultiPart}
 
 class PacketHandler extends CommonPacketHandler {
   override protected def world(player: Player, dimension: Int) =
@@ -22,6 +23,7 @@ class PacketHandler extends CommonPacketHandler {
       case PacketType.Clipboard => onClipboard(p)
       case PacketType.MouseClickOrDrag => onMouseClick(p)
       case PacketType.MouseScroll => onMouseScroll(p)
+      case PacketType.MultiPartPlace => onMultiPartPlace(p)
       case PacketType.RobotStateRequest => onRobotStateRequest(p)
       case PacketType.ServerRange => onServerRange(p)
       case PacketType.ServerSide => onServerSide(p)
@@ -134,6 +136,14 @@ class PacketHandler extends CommonPacketHandler {
     }
   }
 
+  def onMultiPartPlace(p: PacketParser) {
+    p.player match {
+      case player: EntityPlayerMP => EventHandler.place(player)
+      case _ => // Invalid packet.
+    }
+
+  }
+
   def onRobotStateRequest(p: PacketParser) =
     p.readTileEntity[RobotProxy]() match {
       case Some(proxy) => proxy.world.markBlockForUpdate(proxy.x, proxy.y, proxy.z)