Make TileCable non-ticking

- Move updateTick onto BlockGeneric/TileGeneric instead of the full
   wired modem, as it is used by several tiles now.
 - Make *Cable extend from *Generic, and schedule ticks instead of
   running every tick.

src/main/java/dan200/computercraft/shared/common/BlockGeneric.java

@@ -21,6 +21,7 @@ import net.minecraft.world.IBlockAccess;
 import net.minecraft.world.World;
 
 import javax.annotation.Nonnull;
+import java.util.Random;
 
 public abstract class BlockGeneric extends Block implements ITileEntityProvider
 {
@@ -138,6 +139,13 @@ public abstract class BlockGeneric extends Block implements ITileEntityProvider
         }
     }
 
+    @Override
+    public void updateTick( World world, BlockPos pos, IBlockState state, Random rand )
+    {
+        TileEntity te = world.getTileEntity( pos );
+        if( te instanceof TileGeneric ) ((TileGeneric) te).updateTick();
+    }
+
     @Override
     @Deprecated
     public final boolean canProvidePower( IBlockState state )

src/main/java/dan200/computercraft/shared/common/TileGeneric.java

@@ -72,6 +72,10 @@ public abstract class TileGeneric extends TileEntity
     {
     }
 
+    protected void updateTick()
+    {
+    }
+
     public boolean getRedstoneConnectivity( EnumFacing side )
     {
         return false;

src/main/java/dan200/computercraft/shared/peripheral/common/PeripheralItemFactory.java

@@ -34,7 +34,7 @@ public class PeripheralItemFactory
                 return ComputerCraft.Items.peripheral.create( type, label, quantity );
             case WiredModem:
             case Cable:
-                return ComputerCraft.Items.cable.create( type, label, quantity );
+                return ComputerCraft.Items.cable.create( type, quantity );
             case AdvancedModem:
                 return new ItemStack( ComputerCraft.Blocks.advancedModem, quantity );
             case WiredModemFull:

src/main/java/dan200/computercraft/shared/peripheral/modem/wired/BlockCable.java

@@ -9,11 +9,12 @@ package dan200.computercraft.shared.peripheral.modem.wired;
 import com.google.common.collect.ImmutableMap;
 import dan200.computercraft.ComputerCraft;
 import dan200.computercraft.api.ComputerCraftAPI;
+import dan200.computercraft.shared.common.BlockGeneric;
+import dan200.computercraft.shared.common.TileGeneric;
 import dan200.computercraft.shared.peripheral.PeripheralType;
-import dan200.computercraft.shared.peripheral.common.BlockPeripheralBase;
 import dan200.computercraft.shared.peripheral.common.PeripheralItemFactory;
-import dan200.computercraft.shared.peripheral.common.TilePeripheralBase;
 import dan200.computercraft.shared.util.WorldUtil;
+import net.minecraft.block.material.Material;
 import net.minecraft.block.properties.PropertyBool;
 import net.minecraft.block.properties.PropertyEnum;
 import net.minecraft.block.state.BlockFaceShape;
@@ -38,7 +39,7 @@ import java.util.ArrayList;
 import java.util.EnumMap;
 import java.util.List;
 
-public class BlockCable extends BlockPeripheralBase
+public class BlockCable extends BlockGeneric
 {
     // Statics
 
@@ -65,6 +66,7 @@ public class BlockCable extends BlockPeripheralBase
 
     public BlockCable()
     {
+        super( Material.ROCK );
         setHardness( 1.5f );
         setTranslationKey( "computercraft:cable" );
         setCreativeTab( ComputerCraft.mainCreativeTab );
@@ -141,10 +143,12 @@ public class BlockCable extends BlockPeripheralBase
         return meta;
     }
 
+
     @Override
-    public IBlockState getDefaultBlockState( PeripheralType type, EnumFacing placedSide )
+    @Deprecated
+    public final IBlockState getStateForPlacement( World world, BlockPos pos, EnumFacing placedSide, float hitX, float hitY, float hitZ, int damage, EntityLivingBase placer )
     {
-        switch( type )
+        switch( ComputerCraft.Items.cable.getPeripheralType( damage ) )
         {
             case Cable:
                 return getDefaultState()
@@ -189,7 +193,7 @@ public class BlockCable extends BlockPeripheralBase
             .withProperty( Properties.DOWN, doesConnectVisually( state, world, pos, EnumFacing.DOWN ) );
 
         TileEntity tile = world.getTileEntity( pos );
-        int anim = tile instanceof TilePeripheralBase ? ((TilePeripheralBase) tile).getAnim() : 0;
+        int anim = tile instanceof TileCable ? ((TileCable) tile).getState() : 0;
 
         BlockCableModemVariant modem = state.getValue( Properties.MODEM );
         if( modem != BlockCableModemVariant.None )
@@ -208,13 +212,6 @@ public class BlockCable extends BlockPeripheralBase
         return true;
     }
 
-    @Override
-    public PeripheralType getPeripheralType( int damage )
-    {
-        return ComputerCraft.Items.cable.getPeripheralType( damage );
-    }
-
-    @Override
     public PeripheralType getPeripheralType( IBlockState state )
     {
         boolean cable = state.getValue( Properties.CABLE );
@@ -234,7 +231,13 @@ public class BlockCable extends BlockPeripheralBase
     }
 
     @Override
-    public TilePeripheralBase createTile( PeripheralType type )
+    protected TileGeneric createTile( IBlockState state )
+    {
+        return new TileCable();
+    }
+
+    @Override
+    protected TileGeneric createTile( int damage )
     {
         return new TileCable();
     }

src/main/java/dan200/computercraft/shared/peripheral/modem/wired/BlockWiredModemFull.java

@@ -16,10 +16,8 @@ import net.minecraft.block.state.IBlockState;
 import net.minecraft.tileentity.TileEntity;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.world.IBlockAccess;
-import net.minecraft.world.World;
 
 import javax.annotation.Nonnull;
-import java.util.Random;
 
 public class BlockWiredModemFull extends BlockGeneric
 {
@@ -79,13 +77,6 @@ public class BlockWiredModemFull extends BlockGeneric
         return state;
     }
 
-    @Override
-    public void updateTick( World world, BlockPos pos, IBlockState state, Random rand )
-    {
-        TileEntity te = world.getTileEntity( pos );
-        if( te instanceof TileWiredModemFull ) ((TileWiredModemFull) te).updateTick();
-    }
-
     @Override
     protected TileGeneric createTile( IBlockState state )
     {

src/main/java/dan200/computercraft/shared/peripheral/modem/wired/ItemCable.java

@@ -34,7 +34,7 @@ public class ItemCable extends ItemPeripheralBase
     }
 
     @Nonnull
-    public ItemStack create( PeripheralType type, String label, int quantity )
+    public ItemStack create( PeripheralType type, int quantity )
     {
         ItemStack stack;
         switch( type )
@@ -54,10 +54,7 @@ public class ItemCable extends ItemPeripheralBase
                 return ItemStack.EMPTY;
             }
         }
-        if( label != null )
-        {
-            stack.setStackDisplayName( label );
-        }
+
         return stack;
     }
 
@@ -81,11 +78,11 @@ public class ItemCable extends ItemPeripheralBase
 
         // Try to add a cable to a modem
         PeripheralType type = getPeripheralType( stack );
-        Block existing = world.getBlockState( pos ).getBlock();
         IBlockState existingState = world.getBlockState( pos );
+        Block existing = existingState.getBlock();
         if( existing == ComputerCraft.Blocks.cable )
         {
-            PeripheralType existingType = ComputerCraft.Blocks.cable.getPeripheralType( world, pos );
+            PeripheralType existingType = ComputerCraft.Blocks.cable.getPeripheralType( existingState );
             if( existingType == PeripheralType.WiredModem && type == PeripheralType.Cable )
             {
                 if( !stack.isEmpty() )
@@ -112,12 +109,12 @@ public class ItemCable extends ItemPeripheralBase
         if( !existing.isAir( existingState, world, pos ) && (type == PeripheralType.Cable || existingState.isSideSolid( world, pos, side )) )
         {
             BlockPos offset = pos.offset( side );
-            Block offsetExisting = world.getBlockState( offset ).getBlock();
             IBlockState offsetExistingState = world.getBlockState( offset );
+            Block offsetExisting = offsetExistingState.getBlock();
             if( offsetExisting == ComputerCraft.Blocks.cable )
             {
                 // Try to add a modem to a cable
-                PeripheralType offsetExistingType = ComputerCraft.Blocks.cable.getPeripheralType( world, offset );
+                PeripheralType offsetExistingType = ComputerCraft.Blocks.cable.getPeripheralType( offsetExistingState );
                 if( offsetExistingType == PeripheralType.Cable && type == PeripheralType.WiredModem )
                 {
                     if( !stack.isEmpty() )

src/main/java/dan200/computercraft/shared/peripheral/modem/wired/TileCable.java

@@ -7,17 +7,19 @@
 package dan200.computercraft.shared.peripheral.modem.wired;
 
 import com.google.common.base.Objects;
+import dan200.computercraft.ComputerCraft;
 import dan200.computercraft.api.ComputerCraftAPI;
 import dan200.computercraft.api.network.wired.IWiredElement;
 import dan200.computercraft.api.network.wired.IWiredNode;
 import dan200.computercraft.api.peripheral.IPeripheral;
 import dan200.computercraft.shared.command.CommandCopy;
 import dan200.computercraft.shared.common.BlockGeneric;
+import dan200.computercraft.shared.common.TileGeneric;
 import dan200.computercraft.shared.peripheral.PeripheralType;
+import dan200.computercraft.shared.peripheral.common.IPeripheralTile;
 import dan200.computercraft.shared.peripheral.common.PeripheralItemFactory;
-import dan200.computercraft.shared.peripheral.modem.ModemPeripheral;
 import dan200.computercraft.shared.peripheral.modem.ModemState;
-import dan200.computercraft.shared.peripheral.modem.TileModemBase;
+import dan200.computercraft.shared.util.TickScheduler;
 import dan200.computercraft.shared.wired.CapabilityWiredElement;
 import net.minecraft.block.state.IBlockState;
 import net.minecraft.entity.player.EntityPlayer;
@@ -37,42 +39,35 @@ import javax.annotation.Nullable;
 import java.util.Collections;
 import java.util.Map;
 
-public class TileCable extends TileModemBase
+public class TileCable extends TileGeneric implements IPeripheralTile
 {
-    private static class CableElement extends WiredModemElement
+    private class CableElement extends WiredModemElement
     {
-        private final TileCable m_entity;
-
-        private CableElement( TileCable m_entity )
-        {
-            this.m_entity = m_entity;
-        }
-
         @Nonnull
         @Override
         public World getWorld()
         {
-            return m_entity.getWorld();
+            return TileCable.this.getWorld();
         }
 
         @Nonnull
         @Override
         public Vec3d getPosition()
         {
-            BlockPos pos = m_entity.getPos();
+            BlockPos pos = TileCable.this.getPos();
             return new Vec3d( pos.getX() + 0.5, pos.getY() + 0.5, pos.getZ() + 0.5 );
         }
 
         @Override
         protected void attachPeripheral( String name, IPeripheral peripheral )
         {
-            ((WiredModemPeripheral) m_entity.m_modem).attachPeripheral( name, peripheral );
+            m_modem.attachPeripheral( name, peripheral );
         }
 
         @Override
         protected void detachPeripheral( String name )
         {
-            ((WiredModemPeripheral) m_entity.m_modem).detachPeripheral( name );
+            m_modem.detachPeripheral( name );
         }
     }
 
@@ -83,18 +78,17 @@ public class TileCable extends TileModemBase
 
     private boolean m_destroyed = false;
 
-    private boolean m_hasDirection = false;
+    private EnumFacing modemDirection;
+    private boolean hasModemDirection = false;
+
     private boolean m_connectionsFormed = false;
 
-    private WiredModemElement m_cable;
-    private IWiredNode m_node;
-
-    @Override
-    protected ModemPeripheral createPeripheral()
-    {
-        m_cable = new CableElement( this );
-        m_node = m_cable.getNode();
-        return new WiredModemPeripheral( new ModemState(), m_cable )
+    private final WiredModemElement m_cable = new CableElement();
+    private final IWiredNode m_node = m_cable.getNode();
+    private final WiredModemPeripheral m_modem = new WiredModemPeripheral(
+        new ModemState( () -> TickScheduler.schedule( this ) ),
+        m_cable
+    )
     {
         @Nonnull
         @Override
@@ -107,11 +101,12 @@ public class TileCable extends TileModemBase
         @Override
         public Vec3d getPosition()
         {
-                BlockPos pos = getPos().offset( getCachedDirection() );
+            BlockPos pos = getPos().offset( modemDirection );
             return new Vec3d( pos.getX() + 0.5, pos.getY() + 0.5, pos.getZ() + 0.5 );
         }
     };
-    }
+
+    private int m_state = 0;
 
     private void remove()
     {
@@ -151,43 +146,36 @@ public class TileCable extends TileModemBase
     public void onLoad()
     {
         super.onLoad();
+        if( !world.isRemote )
+        {
             updateDirection();
+            world.scheduleUpdate( pos, getBlockType(), 0 );
+        }
     }
 
     @Override
     public void updateContainingBlockInfo()
     {
-        m_hasDirection = false;
+        hasModemDirection = false;
+        if( !world.isRemote ) world.scheduleUpdate( pos, getBlockType(), 0 );
     }
 
     private void updateDirection()
     {
-        if( !m_hasDirection )
+        if( !hasModemDirection )
         {
-            m_hasDirection = true;
-            m_dir = getDirection();
+            hasModemDirection = true;
+            modemDirection = getDirection();
         }
     }
 
-    @Override
-    public EnumFacing getDirection()
+    private EnumFacing getDirection()
     {
         IBlockState state = getBlockState();
         EnumFacing facing = state.getValue( BlockCable.Properties.MODEM ).getFacing();
         return facing != null ? facing : EnumFacing.NORTH;
     }
 
-    @Override
-    public void setDirection( EnumFacing dir )
-    {
-        IBlockState state = getBlockState();
-        BlockCableModemVariant modem = state.getValue( BlockCable.Properties.MODEM );
-        if( modem != BlockCableModemVariant.None )
-        {
-            setBlockState( state.withProperty( BlockCable.Properties.MODEM, BlockCableModemVariant.fromFacing( dir ) ) );
-        }
-    }
-
     @Override
     public void getDroppedItems( @Nonnull NonNullList<ItemStack> drops, boolean creative )
     {
@@ -199,12 +187,12 @@ public class TileCable extends TileModemBase
                 case Cable:
                 case WiredModem:
                 {
-                    drops.add( PeripheralItemFactory.create( type, getLabel(), 1 ) );
+                    drops.add( PeripheralItemFactory.create( type, null, 1 ) );
                     break;
                 }
                 case WiredModemWithCable:
                 {
-                    drops.add( PeripheralItemFactory.create( PeripheralType.WiredModem, getLabel(), 1 ) );
+                    drops.add( PeripheralItemFactory.create( PeripheralType.WiredModem, null, 1 ) );
                     drops.add( PeripheralItemFactory.create( PeripheralType.Cable, null, 1 ) );
                     break;
                 }
@@ -236,7 +224,6 @@ public class TileCable extends TileModemBase
                 {
                     // Drop the modem and convert to cable
                     ((BlockGeneric) getBlockType()).dropItem( getWorld(), getPos(), PeripheralItemFactory.create( PeripheralType.WiredModem, getLabel(), 1 ) );
-                    setLabel( null );
                     setBlockState( getBlockState().withProperty( BlockCable.Properties.MODEM, BlockCableModemVariant.None ) );
                     modemChanged();
                     connectionsChanged();
@@ -328,21 +315,46 @@ public class TileCable extends TileModemBase
     }
 
     @Override
-    protected void updateAnim()
+    protected void writeDescription( @Nonnull NBTTagCompound nbt )
     {
-        int anim = 0;
-        if( m_modem.getModemState().isOpen() ) anim |= 1;
-        if( m_peripheralAccessAllowed ) anim |= 2;
-        setAnim( anim );
+        super.writeDescription( nbt );
+        nbt.setInteger( "state", m_state );
     }
 
     @Override
-    public void update()
+    public final void readDescription( @Nonnull NBTTagCompound nbt )
+    {
+        super.readDescription( nbt );
+        m_state = nbt.getInteger( "state" );
+        updateBlock();
+    }
+
+    public int getState()
+    {
+        return m_state;
+    }
+
+    private void updateState()
+    {
+        int state = 0;
+        if( m_modem.getModemState().isOpen() ) state |= 1;
+        if( m_peripheralAccessAllowed ) state |= 2;
+        if( state != m_state )
+        {
+            m_state = state;
+            updateBlock();
+        }
+    }
+
+    @Override
+    protected void updateTick()
     {
-        super.update();
-        updateDirection();
         if( !getWorld().isRemote )
         {
+            updateDirection();
+
+            if( m_modem.getModemState().pollChanged() ) updateState();
+
             if( !m_connectionsFormed )
             {
                 m_connectionsFormed = true;
@@ -350,7 +362,7 @@ public class TileCable extends TileModemBase
                 connectionsChanged();
                 if( m_peripheralAccessAllowed )
                 {
-                    m_peripheral.attach( world, pos, m_dir );
+                    m_peripheral.attach( world, pos, modemDirection );
                     updateConnectedPeripherals();
                 }
             }
@@ -396,7 +408,7 @@ public class TileCable extends TileModemBase
             m_peripheral.detach();
             m_node.updatePeripherals( Collections.emptyMap() );
             markDirty();
-            updateAnim();
+            updateState();
         }
     }
 
@@ -419,7 +431,7 @@ public class TileCable extends TileModemBase
             m_node.updatePeripherals( Collections.emptyMap() );
         }
 
-        updateAnim();
+        updateState();
     }
 
     private void updateConnectedPeripherals()
@@ -429,7 +441,7 @@ public class TileCable extends TileModemBase
         {
             // If there are no peripherals then disable access and update the display state.
             m_peripheralAccessAllowed = false;
-            updateAnim();
+            updateState();
         }
 
         m_node.updatePeripherals( peripherals );
@@ -441,12 +453,14 @@ public class TileCable extends TileModemBase
         return true;
     }
 
-    // IWiredElement capability
-
     @Override
     public boolean hasCapability( @Nonnull Capability<?> capability, @Nullable EnumFacing facing )
     {
-        if( capability == CapabilityWiredElement.CAPABILITY ) return BlockCable.canConnectIn( getBlockState(), facing );
+        if( capability == CapabilityWiredElement.CAPABILITY )
+        {
+            return !m_destroyed && BlockCable.canConnectIn( getBlockState(), facing );
+        }
+
         return super.hasCapability( capability, facing );
     }
 
@@ -456,21 +470,24 @@ public class TileCable extends TileModemBase
     {
         if( capability == CapabilityWiredElement.CAPABILITY )
         {
-            return BlockCable.canConnectIn( getBlockState(), facing ) ? CapabilityWiredElement.CAPABILITY.cast( m_cable ) : null;
+            return !m_destroyed && BlockCable.canConnectIn( getBlockState(), facing )
+                ? CapabilityWiredElement.CAPABILITY.cast( m_cable )
+                : null;
         }
 
         return super.getCapability( capability, facing );
     }
 
-    // IPeripheralTile
-
     @Override
     public IPeripheral getPeripheral( EnumFacing side )
     {
-        if( getPeripheralType() != PeripheralType.Cable )
-        {
-            return super.getPeripheral( side );
+        return !m_destroyed && getPeripheralType() != PeripheralType.Cable && side == getDirection() ? m_modem : null;
     }
-        return null;
+
+    @Override
+    public PeripheralType getPeripheralType()
+    {
+        IBlockState state = getBlockState();
+        return ComputerCraft.Blocks.cable.getPeripheralType( state );
     }
 }

src/main/java/dan200/computercraft/shared/peripheral/modem/wired/TileWiredModemFull.java

@@ -264,6 +264,7 @@ public class TileWiredModemFull extends TileGeneric implements IPeripheralTile
         if( !world.isRemote ) world.scheduleUpdate( pos, getBlockType(), 0 );
     }
 
+    @Override
     protected void updateTick()
     {
         if( !getWorld().isRemote )