Only allow the network cable to connect on a specific side, add model and shape

src/main/java/net/shadowfacts/phycon/api/NetworkCable.java

@@ -1,17 +1,8 @@
 package net.shadowfacts.phycon.api;
 
-import net.minecraft.block.BlockState;
-import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.math.Direction;
-import net.minecraft.world.World;
-
-import java.util.Set;
-
 /**
  * @author shadowfacts
  */
 public interface NetworkCable extends NetworkComponent {
 
-	Set<Direction> getNetworkConnectedSides(BlockState state, World world, BlockPos pos);
-
 }

src/main/java/net/shadowfacts/phycon/api/NetworkComponent.java

@@ -1,7 +1,17 @@
 package net.shadowfacts.phycon.api;
 
+import net.minecraft.block.BlockState;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.Direction;
+import net.minecraft.world.World;
+
+import java.util.Collection;
+
 /**
  * @author shadowfacts
  */
 public interface NetworkComponent {
+
+	Collection<Direction> getNetworkConnectedSides(BlockState state, World world, BlockPos pos);
+
 }

src/main/kotlin/net/shadowfacts/phycon/network/DeviceBlock.kt

@@ -0,0 +1,19 @@
+package net.shadowfacts.phycon.network
+
+import net.minecraft.block.BlockState
+import net.minecraft.entity.player.PlayerEntity
+import net.minecraft.util.math.BlockPos
+import net.minecraft.world.World
+import net.shadowfacts.phycon.block.BlockWithEntity
+
+/**
+ * @author shadowfacts
+ */
+abstract class DeviceBlock<T: DeviceBlockEntity>(settings: Settings): BlockWithEntity<T>(settings) {
+
+	override fun onBreak(world: World, pos: BlockPos, state: BlockState, player: PlayerEntity) {
+		super.onBreak(world, pos, state, player)
+		getBlockEntity(world, pos)!!.onBreak()
+	}
+
+}

src/main/kotlin/net/shadowfacts/phycon/network/DeviceBlockEntity.kt

@@ -7,6 +7,7 @@ import net.minecraft.util.Tickable
 import net.shadowfacts.phycon.api.PacketSink
 import net.shadowfacts.phycon.api.packet.Packet
 import net.shadowfacts.phycon.api.util.MACAddress
+import net.shadowfacts.phycon.network.packet.DeviceRemovedPacket
 import java.lang.ref.WeakReference
 import java.util.*
 
@@ -84,4 +85,8 @@ abstract class DeviceBlockEntity(type: BlockEntityType<*>): BlockEntity(type), T
 		macAddress = MACAddress(tag.getLong("MACAddress"))
 	}
 
+	fun onBreak() {
+		enqueueToAll(DeviceRemovedPacket(this))
+	}
+
 }

src/main/kotlin/net/shadowfacts/phycon/network/NetworkUtil.kt

@@ -4,6 +4,7 @@ import net.minecraft.util.math.BlockPos
 import net.minecraft.util.math.Direction
 import net.minecraft.world.World
 import net.shadowfacts.phycon.api.NetworkCable
+import net.shadowfacts.phycon.api.NetworkComponent
 import net.shadowfacts.phycon.api.PacketSink
 import net.shadowfacts.phycon.api.PhyAttributes
 import java.util.*
@@ -20,7 +21,7 @@ object NetworkUtil {
 		if (direction != null) {
 			queue.add(startPos.offset(direction))
 		} else {
-			addAdjacent(queue, visited, startPos)
+			findEdges(queue, visited, world, startPos, includeNonCables = true)
 		}
 
 		while (queue.isNotEmpty()) {
@@ -39,10 +40,10 @@ object NetworkUtil {
 		return results
 	}
 
-	private fun findEdges(queue: MutableList<BlockPos>, visited: Set<BlockPos>, world: World, pos: BlockPos) {
+	private fun findEdges(queue: MutableList<BlockPos>, visited: Set<BlockPos>, world: World, pos: BlockPos, includeNonCables: Boolean = false) {
 		val state = world.getBlockState(pos)
 		val block = state.block
-		if (block is NetworkCable) {
+		if (block is NetworkComponent && (includeNonCables || block is NetworkCable)) {
 			val connections = block.getNetworkConnectedSides(state, world, pos)
 			for (side in connections) {
 				val newPos = pos.offset(side)
@@ -53,13 +54,4 @@ object NetworkUtil {
 		}
 	}
 
-	private fun addAdjacent(queue: MutableList<BlockPos>, visited: Set<BlockPos>, pos: BlockPos) {
-		for (dir in Direction.values()) {
-			val newPos = pos.offset(dir)
-			if (newPos !in visited) {
-				queue.add(newPos)
-			}
-		}
-	}
-
 }

src/main/kotlin/net/shadowfacts/phycon/network/block/cable/CableBlock.kt

@@ -65,7 +65,7 @@ class CableBlock: Block(Settings.of(CABLE_MATERIAL)), NetworkCable {
 		}
 	}
 
-	override fun getNetworkConnectedSides(state: BlockState, world: World, pos: BlockPos): Set<Direction> {
+	override fun getNetworkConnectedSides(state: BlockState, world: World, pos: BlockPos): Collection<Direction> {
 		val set = EnumSet.noneOf(Direction::class.java)
 		for ((side, prop) in CONNECTIONS) {
 			if (state[prop] == CableConnection.ON) {

src/main/kotlin/net/shadowfacts/phycon/network/block/netinterface/InterfaceBlock.kt

@@ -5,18 +5,27 @@ import alexiil.mc.lib.attributes.AttributeProvider
 import net.minecraft.block.Block
 import net.minecraft.block.BlockState
 import net.minecraft.block.Material
+import net.minecraft.entity.EntityContext
 import net.minecraft.entity.LivingEntity
 import net.minecraft.item.ItemPlacementContext
 import net.minecraft.item.ItemStack
 import net.minecraft.state.StateFactory
+import net.minecraft.state.property.EnumProperty
 import net.minecraft.state.property.Properties
 import net.minecraft.util.Identifier
 import net.minecraft.util.math.BlockPos
+import net.minecraft.util.math.Direction
+import net.minecraft.util.shape.VoxelShape
+import net.minecraft.util.shape.VoxelShapes
 import net.minecraft.world.BlockView
+import net.minecraft.world.IWorld
 import net.minecraft.world.World
 import net.shadowfacts.phycon.PhysicalConnectivity
 import net.shadowfacts.phycon.api.NetworkComponent
 import net.shadowfacts.phycon.block.BlockWithEntity
+import net.shadowfacts.phycon.network.block.cable.CableBlock
+import java.net.NoRouteToHostException
+import java.util.*
 
 /**
  * @author shadowfacts
@@ -25,18 +34,61 @@ class InterfaceBlock: BlockWithEntity<InterfaceBlockEntity>(Settings.of(Material
 	companion object {
 		val ID = Identifier(PhysicalConnectivity.MODID, "network_interface")
 		val FACING = Properties.FACING
+		val CABLE_CONNECTION = EnumProperty.of("cable_connection", Direction::class.java)
+		private val SIDE_SHAPES = mapOf<Direction, VoxelShape>(
+				Direction.DOWN to createCuboidShape(2.0, 0.0, 2.0, 14.0, 2.0, 14.0),
+				Direction.UP to createCuboidShape(2.0, 14.0, 2.0, 14.0, 16.0, 14.0),
+				Direction.NORTH to createCuboidShape(2.0, 2.0, 0.0, 14.0, 14.0, 2.0),
+				Direction.SOUTH to createCuboidShape(2.0, 2.0, 14.0, 14.0, 14.0, 16.0),
+				Direction.WEST to createCuboidShape(0.0, 2.0, 2.0, 2.0, 14.0, 14.0),
+				Direction.EAST to createCuboidShape(14.0, 2.0, 2.0, 16.0, 14.0, 14.0)
+		)
+		private val CENTER_SHAPES = mapOf<Direction, VoxelShape>(
+				Direction.DOWN to createCuboidShape(6.0, 2.0, 6.0, 10.0, 10.0, 10.0),
+				Direction.UP to createCuboidShape(6.0, 6.0, 6.0, 10.0, 14.0, 10.0),
+				Direction.NORTH to createCuboidShape(6.0, 6.0, 2.0, 10.0, 10.0, 10.0),
+				Direction.SOUTH to createCuboidShape(6.0, 6.0, 6.0, 10.0, 10.0, 14.0),
+				Direction.WEST to createCuboidShape(2.0, 6.0, 6.0, 10.0, 10.0, 10.0),
+				Direction.EAST to createCuboidShape(6.0, 6.0, 6.0, 14.0, 10.0, 10.0)
+		)
+
+		private val shapeCache = mutableMapOf<Pair<Direction, Direction>, VoxelShape>()
+		fun getShape(facing: Direction, cableConnection: Direction): VoxelShape {
+			return shapeCache.getOrPut(facing to cableConnection) {
+				VoxelShapes.union(
+						VoxelShapes.union(SIDE_SHAPES[facing], CENTER_SHAPES[facing]),
+						CableBlock.SIDE_SHAPES[cableConnection]
+				)
+			}
+		}
+	}
+
+	override fun getNetworkConnectedSides(state: BlockState, world: World, pos: BlockPos): Collection<Direction> {
+		return EnumSet.of(state[CABLE_CONNECTION])
 	}
 
 	override fun appendProperties(builder: StateFactory.Builder<Block, BlockState>) {
 		super.appendProperties(builder)
 		builder.add(FACING)
+		builder.add(CABLE_CONNECTION)
 	}
 
 	override fun createBlockEntity(world: BlockView) = InterfaceBlockEntity()
 
 	override fun getPlacementState(context: ItemPlacementContext): BlockState {
-		val facing = if (context.player?.isSneaking == true) context.playerFacing else context.playerFacing.opposite
-		return defaultState.with(FACING, facing)
+		val facing = if (context.player?.isSneaking == true) context.side.opposite else context.playerFacing.opposite
+		val cableConnection = getCableConnectionSide(context.world, context.blockPos) ?: facing.opposite
+		return defaultState.with(FACING, facing).with(CABLE_CONNECTION, cableConnection)
+	}
+
+	private fun getCableConnectionSide(world: World, pos: BlockPos): Direction? {
+		for (side in Direction.values()) {
+			val offsetPos = pos.offset(side)
+			if (world.getBlockState(offsetPos).block is NetworkComponent) {
+				return side
+			}
+		}
+		return null
 	}
 
 	override fun onPlaced(world: World, pos: BlockPos, state: BlockState, placer: LivingEntity?, stack: ItemStack) {
@@ -51,8 +103,19 @@ class InterfaceBlock: BlockWithEntity<InterfaceBlockEntity>(Settings.of(Material
 		}
 	}
 
+	override fun getStateForNeighborUpdate(state: BlockState, side: Direction, neighborState: BlockState, world: IWorld, pos: BlockPos, neighborPos: BlockPos): BlockState {
+		if (neighborState.block is NetworkComponent && world.getBlockState(pos.offset(state[CABLE_CONNECTION])).block !is NetworkComponent) {
+			return state.with(CABLE_CONNECTION, side)
+		}
+		return state
+	}
+
 	override fun addAllAttributes(world: World, pos: BlockPos, state: BlockState, to: AttributeList<*>) {
 		to.offer(getBlockEntity(world, pos))
 	}
 
+	override fun getOutlineShape(state: BlockState, world: BlockView, pos: BlockPos, context: EntityContext): VoxelShape {
+		return getShape(state[FACING], state[CABLE_CONNECTION])
+	}
+
 }

src/main/kotlin/net/shadowfacts/phycon/network/block/netswitch/SwitchBlock.kt

@@ -6,11 +6,13 @@ import net.minecraft.block.BlockState
 import net.minecraft.block.Material
 import net.minecraft.util.Identifier
 import net.minecraft.util.math.BlockPos
+import net.minecraft.util.math.Direction
 import net.minecraft.world.BlockView
 import net.minecraft.world.World
 import net.shadowfacts.phycon.PhysicalConnectivity
 import net.shadowfacts.phycon.api.NetworkComponent
 import net.shadowfacts.phycon.block.BlockWithEntity
+import java.util.*
 
 /**
  * @author shadowfacts
@@ -20,6 +22,10 @@ class SwitchBlock: BlockWithEntity<SwitchBlockEntity>(Settings.of(Material.METAL
 		val ID = Identifier(PhysicalConnectivity.MODID, "switch")
 	}
 
+	override fun getNetworkConnectedSides(state: BlockState, world: World, pos: BlockPos): Collection<Direction> {
+		return EnumSet.allOf(Direction::class.java)
+	}
+
 	override fun createBlockEntity(world: BlockView) = SwitchBlockEntity()
 
 	override fun addAllAttributes(world: World, pos: BlockPos, state: BlockState, to: AttributeList<*>) {

src/main/kotlin/net/shadowfacts/phycon/network/block/terminal/TerminalBlock.kt

@@ -9,11 +9,13 @@ import net.minecraft.util.Hand
 import net.minecraft.util.Identifier
 import net.minecraft.util.hit.BlockHitResult
 import net.minecraft.util.math.BlockPos
+import net.minecraft.util.math.Direction
 import net.minecraft.world.BlockView
 import net.minecraft.world.World
 import net.shadowfacts.phycon.PhysicalConnectivity
 import net.shadowfacts.phycon.api.NetworkComponent
 import net.shadowfacts.phycon.block.BlockWithEntity
+import java.util.*
 
 /**
  * @author shadowfacts
@@ -23,6 +25,10 @@ class TerminalBlock: BlockWithEntity<TerminalBlockEntity>(Settings.of(Material.M
 		val ID = Identifier(PhysicalConnectivity.MODID, "terminal")
 	}
 
+	override fun getNetworkConnectedSides(state: BlockState, world: World, pos: BlockPos): Collection<Direction> {
+		return EnumSet.allOf(Direction::class.java)
+	}
+
 	override fun createBlockEntity(world: BlockView) = TerminalBlockEntity()
 
 	override fun activate(blockState_1: BlockState?, world_1: World?, blockPos_1: BlockPos?, playerEntity_1: PlayerEntity?, hand_1: Hand?, blockHitResult_1: BlockHitResult?): Boolean {

src/main/kotlin/net/shadowfacts/phycon/network/block/terminal/TerminalBlockEntity.kt

@@ -1,36 +1,55 @@
 package net.shadowfacts.phycon.network.block.terminal
 
 import alexiil.mc.lib.attributes.item.ItemStackCollections
+import it.unimi.dsi.fastutil.objects.Object2IntMap
 import net.minecraft.item.ItemStack
 import net.shadowfacts.phycon.api.packet.Packet
+import net.shadowfacts.phycon.api.util.MACAddress
 import net.shadowfacts.phycon.init.PhyBlockEntities
 import net.shadowfacts.phycon.network.DeviceBlockEntity
+import net.shadowfacts.phycon.network.block.netinterface.InterfaceBlockEntity
+import net.shadowfacts.phycon.network.packet.DeviceRemovedPacket
 import net.shadowfacts.phycon.network.packet.ReadAllPacket
 import net.shadowfacts.phycon.network.packet.RequestReadAllPacket
+import java.util.*
 
 /**
  * @author shadowfacts
  */
 class TerminalBlockEntity: DeviceBlockEntity(PhyBlockEntities.TERMINAL) {
 
-	private var cachedItems = ItemStackCollections.intMap()
+	private val inventoryCache = mutableMapOf<MACAddress, Map<ItemStack, Int>>()
 
 	override fun handlePacket(packet: Packet) {
 		when (packet) {
 			is ReadAllPacket -> handleReadAll(packet)
+			is DeviceRemovedPacket -> handleDeviceRemoved(packet)
 		}
 	}
 
-	fun handleReadAll(packet: ReadAllPacket) {
-		packet.items.forEach { (stack, amount) ->
-			cachedItems.mergeInt(stack, amount) { a, b -> a + b }
+	private fun handleReadAll(packet: ReadAllPacket) {
+		inventoryCache[packet.source] = packet.items
+
+		println("new items: ${computeNetItems()}")
 	}
-		println("new cached items: $cachedItems")
+
+	private fun handleDeviceRemoved(packet: DeviceRemovedPacket) {
+		inventoryCache.remove(packet.source)
+	}
+
+	fun computeNetItems(): Map<ItemStack, Int> {
+		val net = ItemStackCollections.intMap()
+		for (map in inventoryCache.values) {
+			for ((stack, amount) in map) {
+				net.mergeInt(stack, amount) { a, b -> a + b }
+			}
+		}
+		return net
 	}
 
 	fun onActivate() {
 		if (!world!!.isClient) {
-			cachedItems.clear()
+			inventoryCache.clear()
 			enqueueToSingle(RequestReadAllPacket(macAddress))
 		}
 	}

src/main/kotlin/net/shadowfacts/phycon/network/packet/DeviceRemovedPacket.kt

@@ -0,0 +1,11 @@
+package net.shadowfacts.phycon.network.packet
+
+import net.shadowfacts.phycon.api.util.MACAddress
+import net.shadowfacts.phycon.network.DeviceBlockEntity
+
+/**
+ * @author shadowfacts
+ */
+class DeviceRemovedPacket(source: MACAddress, destination: MACAddress = MACAddress.BROADCAST): BasePacket(source, destination) {
+	constructor(device: DeviceBlockEntity): this(device.macAddress)
+}

src/main/resources/assets/phycon/blockstates/network_interface.json

@@ -0,0 +1,55 @@
+{
+	"multipart": [
+		{
+			"apply": { "model": "phycon:block/cable_center" }
+		},
+		{
+			"when": { "facing": "down" },
+			"apply": { "model": "phycon:block/interface_side" }
+		},
+		{
+			"when": { "facing": "up" },
+			"apply": { "model": "phycon:block/interface_side", "x": 180 }
+		},
+		{
+			"when": { "facing": "north" },
+			"apply": { "model": "phycon:block/interface_side", "x": 270 }
+		},
+		{
+			"when": { "facing": "south" },
+			"apply": { "model": "phycon:block/interface_side", "x": 90 }
+		},
+		{
+			"when": { "facing": "west" },
+			"apply": { "model": "phycon:block/interface_side", "x": 90, "y": 90 }
+		},
+		{
+			"when": { "facing": "east" },
+			"apply": { "model": "phycon:block/interface_side", "x": 90, "y": 270 }
+		},
+		{
+			"when": { "cable_connection": "down" },
+			"apply": { "model": "phycon:block/cable_side" }
+		},
+		{
+			"when": { "cable_connection": "up" },
+			"apply": { "model": "phycon:block/cable_side", "x": 180 }
+		},
+		{
+			"when": { "cable_connection": "north" },
+			"apply": { "model": "phycon:block/cable_side", "x": 270 }
+		},
+		{
+			"when": { "cable_connection": "south" },
+			"apply": { "model": "phycon:block/cable_side", "x": 90 }
+		},
+		{
+			"when": { "cable_connection": "west" },
+			"apply": { "model": "phycon:block/cable_side", "x": 90, "y": 90 }
+		},
+		{
+			"when": { "cable_connection": "east" },
+			"apply": { "model": "phycon:block/cable_side", "x": 90, "y": 270 }
+		}
+	]
+}

src/main/resources/assets/phycon/models/block/interface_side.json

@@ -0,0 +1,27 @@
+{
+	"parent": "block/block",
+	"elements": [
+		{
+			"from": [2, 0, 2],
+			"to": [14, 2, 14],
+			"faces": {
+				"down": { "texture": "phycon:block/interface_front" },
+				"up": { "texture": "phycon:block/interface_back" },
+				"north": { "texture": "phycon:block/interface_side" },
+				"south": { "texture": "phycon:block/interface_side" },
+				"west": { "texture": "phycon:block/interface_side" },
+				"east": { "texture": "phycon:block/interface_side" }
+			}
+		},
+		{
+			"from": [6, 2, 6],
+			"to": [10, 6, 10],
+			"faces": {
+				"north": { "texture": "phycon:block/cable_side" },
+				"south": { "texture": "phycon:block/cable_side" },
+				"west": { "texture": "phycon:block/cable_side" },
+				"east": { "texture": "phycon:block/cable_side" }
+			}
+		}
+	]
+}