CatServer/patches/net/minecraft/block/BlockRedstoneDiode.java.patch

--- ../src-base/minecraft/net/minecraft/block/BlockRedstoneDiode.java
+++ ../src-work/minecraft/net/minecraft/block/BlockRedstoneDiode.java
@@ -15,6 +15,7 @@
 import net.minecraft.world.World;
 import net.minecraftforge.fml.relauncher.Side;
 import net.minecraftforge.fml.relauncher.SideOnly;
+import org.bukkit.craftbukkit.event.CraftEventFactory;
 
 public abstract class BlockRedstoneDiode extends BlockHorizontal
 {
@@ -39,12 +40,14 @@
 
     public boolean canPlaceBlockAt(World worldIn, BlockPos pos)
     {
-        return worldIn.getBlockState(pos.down()).isTopSolid() ? super.canPlaceBlockAt(worldIn, pos) : false;
+        IBlockState downState = worldIn.getBlockState(pos.down());
+        return (downState.isTopSolid() || downState.getBlockFaceShape(worldIn, pos.down(), EnumFacing.UP) == BlockFaceShape.SOLID) ? super.canPlaceBlockAt(worldIn, pos) : false;
     }
 
     public boolean canBlockStay(World worldIn, BlockPos pos)
     {
-        return worldIn.getBlockState(pos.down()).isTopSolid();
+        IBlockState downState = worldIn.getBlockState(pos.down());
+        return downState.isTopSolid() || downState.getBlockFaceShape(worldIn, pos.down(), EnumFacing.UP) == BlockFaceShape.SOLID;
     }
 
     public void randomTick(World worldIn, BlockPos pos, IBlockState state, Random random)
@@ -59,10 +62,16 @@
 
             if (this.isRepeaterPowered && !flag)
             {
+                if (CraftEventFactory.callRedstoneChange(worldIn, pos.getX(), pos.getY(), pos.getZ(), 15, 0).getNewCurrent() != 0) {
+                    return;
+                }
                 worldIn.setBlockState(pos, this.getUnpoweredState(state), 2);
             }
             else if (!this.isRepeaterPowered)
             {
+                if (CraftEventFactory.callRedstoneChange(worldIn, pos.getX(), pos.getY(), pos.getZ(), 0, 15).getNewCurrent() != 15) {
+                    return;
+                }
                 worldIn.setBlockState(pos, this.getPoweredState(state), 2);
 
                 if (!flag)
@@ -227,6 +236,8 @@
     {
         EnumFacing enumfacing = (EnumFacing)state.getValue(FACING);
         BlockPos blockpos = pos.offset(enumfacing.getOpposite());
+        if(net.minecraftforge.event.ForgeEventFactory.onNeighborNotify(worldIn, pos, worldIn.getBlockState(pos), java.util.EnumSet.of(enumfacing.getOpposite()), false).isCanceled())
+            return;
         worldIn.neighborChanged(blockpos, this, pos);
         worldIn.notifyNeighborsOfStateExcept(blockpos, this, enumfacing);
     }
@@ -307,6 +318,25 @@
         return BlockRenderLayer.CUTOUT;
     }
 
+    /* ======================================== FORGE START =====================================*/
+    @Override
+    public boolean rotateBlock(World world, BlockPos pos, EnumFacing axis)
+    {
+        if (super.rotateBlock(world, pos, axis))
+        {
+            IBlockState state = world.getBlockState(pos);
+            state = getUnpoweredState(state);
+            world.setBlockState(pos, state);
+
+            if (shouldBePowered(world, pos, state))
+            {
+                world.scheduleUpdate(pos, this, 1);
+            }
+            return true;
+        }
+        return false;
+    }
+
     public BlockFaceShape getBlockFaceShape(IBlockAccess worldIn, IBlockState state, BlockPos pos, EnumFacing face)
     {
         return face == EnumFacing.DOWN ? BlockFaceShape.SOLID : BlockFaceShape.UNDEFINED;