CatServer/patches/net/minecraft/world/gen/feature/WorldGenTaiga1.java.patch

--- ../src-base/minecraft/net/minecraft/world/gen/feature/WorldGenTaiga1.java
+++ ../src-work/minecraft/net/minecraft/world/gen/feature/WorldGenTaiga1.java
@@ -54,7 +54,7 @@
                     {
                         if (i1 >= 0 && i1 < 256)
                         {
-                            if (!this.canGrowInto(worldIn.getBlockState(blockpos$mutableblockpos.setPos(k1, i1, l1)).getBlock()))
+                            if (!this.isReplaceable(worldIn,blockpos$mutableblockpos.setPos(k1, i1, l1)))
                             {
                                 flag = false;
                             }
@@ -73,11 +73,13 @@
             }
             else
             {
-                Block block = worldIn.getBlockState(position.down()).getBlock();
+                BlockPos down = position.down();
+                IBlockState state = worldIn.getBlockState(down);
+                boolean isSoil = state.getBlock().canSustainPlant(state, worldIn, down, net.minecraft.util.EnumFacing.UP, (net.minecraft.block.BlockSapling)Blocks.SAPLING);
 
-                if ((block == Blocks.GRASS || block == Blocks.DIRT) && position.getY() < 256 - i - 1)
+                if (isSoil && position.getY() < 256 - i - 1)
                 {
-                    this.setDirtAt(worldIn, position.down());
+                    state.getBlock().onPlantGrow(state, worldIn, down, position);
                     int k2 = 0;
 
                     for (int l2 = position.getY() + i; l2 >= position.getY() + j; --l2)
@@ -93,8 +95,9 @@
                                 if (Math.abs(k3) != k2 || Math.abs(j2) != k2 || k2 <= 0)
                                 {
                                     BlockPos blockpos = new BlockPos(j3, l2, i2);
+                                    state = worldIn.getBlockState(blockpos);
 
-                                    if (!worldIn.getBlockState(blockpos).isFullBlock())
+                                    if (state.getBlock().canBeReplacedByLeaves(state, worldIn, blockpos))
                                     {
                                         this.setBlockAndNotifyAdequately(worldIn, blockpos, LEAF);
                                     }
@@ -114,9 +117,10 @@
 
                     for (int i3 = 0; i3 < i - 1; ++i3)
                     {
-                        Material material = worldIn.getBlockState(position.up(i3)).getMaterial();
+                        BlockPos upN = position.up(i3);
+                        state = worldIn.getBlockState(upN);
 
-                        if (material == Material.AIR || material == Material.LEAVES)
+                        if (state.getBlock().isAir(state, worldIn, upN) || state.getBlock().isLeaves(state, worldIn, upN))
                         {
                             this.setBlockAndNotifyAdequately(worldIn, position.up(i3), TRUNK);
                         }