Merge pull request #182 from SquidDev-CC/hotfix/redstone-checks

Redstone behaviour tweaks

src/main/java/dan200/computercraft/shared/computer/blocks/TileComputerBase.java

@@ -22,7 +22,10 @@ import dan200.computercraft.shared.util.DirectionUtil;
 import dan200.computercraft.shared.util.RedstoneUtil;
 import joptsimple.internal.Strings;
 import net.minecraft.block.Block;
+import net.minecraft.block.BlockRedstoneWire;
+import net.minecraft.block.state.IBlockState;
 import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.init.Blocks;
 import net.minecraft.init.Items;
 import net.minecraft.item.ItemStack;
 import net.minecraft.nbt.NBTTagCompound;
@@ -34,6 +37,7 @@ import net.minecraft.util.text.ITextComponent;
 import net.minecraft.util.text.TextComponentString;
 import net.minecraft.util.text.TextComponentTranslation;
 import net.minecraft.world.IWorldNameable;
+import net.minecraft.world.World;
 
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
@@ -124,16 +128,14 @@ public abstract class TileComputerBase extends TileGeneric implements IComputerT
     @Override
     public boolean getRedstoneConnectivity( EnumFacing side )
     {
-        if( side == null ) return false;
+        return true;
-        ComputerSide localDir = remapLocalSide( DirectionUtil.toLocal( this, side.getOpposite() ) );
-        return !isRedstoneBlockedOnSide( localDir );
     }
 
     @Override
     public int getRedstoneOutput( EnumFacing side )
     {
         ComputerSide localDir = remapLocalSide( DirectionUtil.toLocal( this, side ) );
-        if( !isRedstoneBlockedOnSide( localDir ) && world != null && !world.isRemote )
+        if( world != null && !world.isRemote )
         {
             ServerComputer computer = getServerComputer();
             if( computer != null ) return computer.getRedstoneOutput( localDir );
@@ -144,15 +146,14 @@ public abstract class TileComputerBase extends TileGeneric implements IComputerT
     @Override
     public boolean getBundledRedstoneConnectivity( @Nonnull EnumFacing side )
     {
-        ComputerSide localDir = remapLocalSide( DirectionUtil.toLocal( this, side ) );
+        return true;
-        return !isRedstoneBlockedOnSide( localDir );
     }
 
     @Override
     public int getBundledRedstoneOutput( @Nonnull EnumFacing side )
     {
         ComputerSide localDir = remapLocalSide( DirectionUtil.toLocal( this, side ) );
-        if( !isRedstoneBlockedOnSide( localDir ) && !world.isRemote )
+        if( !world.isRemote )
         {
             ServerComputer computer = getServerComputer();
             if( computer != null ) return computer.getBundledRedstoneOutput( localDir );
@@ -259,11 +260,6 @@ public abstract class TileComputerBase extends TileGeneric implements IComputerT
         return false;
     }
 
-    protected boolean isRedstoneBlockedOnSide( ComputerSide localSide )
-    {
-        return false;
-    }
-
     protected ComputerSide remapLocalSide( ComputerSide localSide )
     {
         return localSide;
@@ -273,17 +269,36 @@ public abstract class TileComputerBase extends TileGeneric implements IComputerT
     {
         EnumFacing offsetSide = dir.getOpposite();
         ComputerSide localDir = remapLocalSide( DirectionUtil.toLocal( this, dir ) );
-        if( !isRedstoneBlockedOnSide( localDir ) )
+
-        {
+        computer.setRedstoneInput( localDir, getRedstoneInput( world, offset, dir ) );
-            computer.setRedstoneInput( localDir, getWorld().getRedstonePower( offset, dir ) );
+        computer.setBundledRedstoneInput( localDir, BundledRedstone.getOutput( getWorld(), offset, offsetSide ) );
-            computer.setBundledRedstoneInput( localDir, BundledRedstone.getOutput( getWorld(), offset, offsetSide ) );
+
-        }
         if( !isPeripheralBlockedOnSide( localDir ) )
         {
             computer.setPeripheral( localDir, Peripherals.getPeripheral( getWorld(), offset, offsetSide ) );
         }
     }
 
+    /**
+     * Gets the redstone input for an adjacent block
+     *
+     * @param world The world we exist in
+     * @param pos   The position of the neighbour
+     * @param side  The side we are reading from
+     * @return The effective redstone power
+     * @see net.minecraft.block.BlockRedstoneDiode#calculateInputStrength(World, BlockPos, IBlockState)
+     */
+    protected static int getRedstoneInput( World world, BlockPos pos, EnumFacing side )
+    {
+        int power = world.getRedstonePower( pos, side );
+        if( power >= 15 ) return power;
+
+        IBlockState neighbour = world.getBlockState( pos );
+        return neighbour.getBlock() == Blocks.REDSTONE_WIRE
+            ? Math.max( power, neighbour.getValue( BlockRedstoneWire.POWER ) )
+            : power;
+    }
+
     public void updateInput()
     {
         if( getWorld() == null || getWorld().isRemote ) return;

src/main/java/dan200/computercraft/shared/turtle/blocks/TileTurtle.java

@@ -317,12 +317,6 @@ public class TileTurtle extends TileComputerBase implements ITurtleTile, Default
         return hasPeripheralUpgradeOnSide( localSide );
     }
 
-    @Override
-    protected boolean isRedstoneBlockedOnSide( ComputerSide localSide )
-    {
-        return false;
-    }
-
     // IDirectionalTile
 
     @Override