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

--- ../src-base/minecraft/net/minecraft/block/BlockVine.java
+++ ../src-work/minecraft/net/minecraft/block/BlockVine.java
@@ -2,6 +2,9 @@
 
 import java.util.Random;
 import javax.annotation.Nullable;
+
+import org.bukkit.craftbukkit.event.CraftEventFactory;
+
 import net.minecraft.block.material.Material;
 import net.minecraft.block.properties.IProperty;
 import net.minecraft.block.properties.PropertyBool;
@@ -182,7 +185,7 @@
     {
         if (!worldIn.isRemote)
         {
-            if (worldIn.rand.nextInt(4) == 0)
+            if (worldIn.rand.nextInt(Math.max(1, (int) (100.0F / worldIn.spigotConfig.vineModifier) * 4)) == 0) //Spigot
             {
                 int i = 4;
                 int j = 5;
@@ -228,7 +231,11 @@
 
                         if (((Boolean)iblockstate2.getValue(NORTH)).booleanValue() || ((Boolean)iblockstate2.getValue(EAST)).booleanValue() || ((Boolean)iblockstate2.getValue(SOUTH)).booleanValue() || ((Boolean)iblockstate2.getValue(WEST)).booleanValue())
                         {
-                            worldIn.setBlockState(blockpos2, iblockstate2, 2);
+                            // CraftBukkit start - Call BlockSpreadEvent
+                            org.bukkit.block.Block source = worldIn.getWorld().getBlockAt(pos.getX(), pos.getY(), pos.getZ());
+                            org.bukkit.block.Block block = worldIn.getWorld().getBlockAt(blockpos2.getX(), blockpos2.getY(), blockpos2.getZ());
+                            CraftEventFactory.handleBlockSpreadEvent(block, source, this, getMetaFromState(iblockstate2));
+                            // CraftBukkit end
                         }
                     }
                 }
@@ -249,26 +256,32 @@
                             BlockPos blockpos = blockpos4.offset(enumfacing3);
                             BlockPos blockpos1 = blockpos4.offset(enumfacing4);
 
+                            // CraftBukkit start - Call BlockSpreadEvent
+                            org.bukkit.block.Block source = worldIn.getWorld().getBlockAt(pos.getX(), pos.getY(), pos.getZ());
+                            org.bukkit.block.Block bukkitBlock = worldIn.getWorld().getBlockAt(blockpos4.getX(), blockpos4.getY(), blockpos4.getZ());
                             if (flag1 && this.canAttachVineOn(worldIn.getBlockState(blockpos)))
                             {
-                                worldIn.setBlockState(blockpos4, this.getDefaultState().withProperty(getPropertyFor(enumfacing3), Boolean.valueOf(true)), 2);
+                                CraftEventFactory.handleBlockSpreadEvent(bukkitBlock, source, this, getMetaFromState(getDefaultState().withProperty(getPropertyFor(enumfacing3), true)));
                             }
                             else if (flag2 && this.canAttachVineOn(worldIn.getBlockState(blockpos1)))
                             {
-                                worldIn.setBlockState(blockpos4, this.getDefaultState().withProperty(getPropertyFor(enumfacing4), Boolean.valueOf(true)), 2);
+                                CraftEventFactory.handleBlockSpreadEvent(bukkitBlock, source, this, getMetaFromState(getDefaultState().withProperty(getPropertyFor(enumfacing4), true)));
                             }
                             else if (flag1 && worldIn.isAirBlock(blockpos) && this.canAttachVineOn(worldIn.getBlockState(pos.offset(enumfacing3))))
                             {
-                                worldIn.setBlockState(blockpos, this.getDefaultState().withProperty(getPropertyFor(enumfacing1.getOpposite()), Boolean.valueOf(true)), 2);
+                                bukkitBlock = worldIn.getWorld().getBlockAt(blockpos.getX(), blockpos.getY(), blockpos.getZ());
+                                CraftEventFactory.handleBlockSpreadEvent(bukkitBlock, source, this, getMetaFromState(getDefaultState().withProperty(getPropertyFor(enumfacing1.getOpposite()), true)));
                             }
                             else if (flag2 && worldIn.isAirBlock(blockpos1) && this.canAttachVineOn(worldIn.getBlockState(pos.offset(enumfacing4))))
                             {
-                                worldIn.setBlockState(blockpos1, this.getDefaultState().withProperty(getPropertyFor(enumfacing1.getOpposite()), Boolean.valueOf(true)), 2);
+                                bukkitBlock = worldIn.getWorld().getBlockAt(blockpos1.getX(), blockpos1.getY(), blockpos1.getZ());
+                                CraftEventFactory.handleBlockSpreadEvent(bukkitBlock, source, this, getMetaFromState(getDefaultState().withProperty(getPropertyFor(enumfacing1.getOpposite()), true)));
                             }
                             else if (this.canAttachVineOn(worldIn.getBlockState(blockpos4.up())))
                             {
-                                worldIn.setBlockState(blockpos4, this.getDefaultState(), 2);
+                                CraftEventFactory.handleBlockSpreadEvent(bukkitBlock, source, this, getMetaFromState(getDefaultState()));
                             }
+                            // CraftBukkit end
                         }
                         else if (block1.blockMaterial.isOpaque() && iblockstate3.isFullCube())
                         {
@@ -298,7 +311,11 @@
 
                             if (((Boolean)iblockstate1.getValue(NORTH)).booleanValue() || ((Boolean)iblockstate1.getValue(EAST)).booleanValue() || ((Boolean)iblockstate1.getValue(SOUTH)).booleanValue() || ((Boolean)iblockstate1.getValue(WEST)).booleanValue())
                             {
-                                worldIn.setBlockState(blockpos3, iblockstate1, 2);
+                                // CraftBukkit start - Call BlockSpreadEvent
+                                org.bukkit.block.Block source = worldIn.getWorld().getBlockAt(pos.getX(), pos.getY(), pos.getZ());
+                                org.bukkit.block.Block bukkitBlock = worldIn.getWorld().getBlockAt(blockpos3.getX(), blockpos3.getY(), blockpos3.getZ());
+                                CraftEventFactory.handleBlockSpreadEvent(bukkitBlock, source, this, getMetaFromState(iblockstate1));
+                                // CraftBukkit end
                             }
                         }
                         else if (block == this)