[Bleeding] Added BlockCrops, BlockReed, BlockStem, BlockNetherWart for diff visibility.

src/main/java/net/minecraft/server/BlockNetherWart.java

@@ -0,0 +1,70 @@
+package net.minecraft.server;
+
+import java.util.Random;
+
+public class BlockNetherWart extends BlockFlower {
+
+    protected BlockNetherWart(int i) {
+        super(i, 226);
+        this.a(true);
+        float f = 0.5F;
+
+        this.a(0.5F - f, 0.0F, 0.5F - f, 0.5F + f, 0.25F, 0.5F + f);
+    }
+
+    protected boolean d(int i) {
+        return i == Block.SOUL_SAND.id;
+    }
+
+    public void a(World world, int i, int j, int k, Random random) {
+        int l = world.getData(i, j, k);
+
+        if (l < 3) {
+            WorldChunkManager worldchunkmanager = world.getWorldChunkManager();
+
+            if (worldchunkmanager != null) {
+                BiomeBase biomebase = worldchunkmanager.getBiome(i, k);
+
+                if (biomebase instanceof BiomeHell && random.nextInt(15) == 0) {
+                    ++l;
+                    world.setData(i, j, k, l);
+                }
+            }
+        }
+
+        super.a(world, i, j, k, random);
+    }
+
+    public int a(int i, int j) {
+        return j >= 3 ? this.textureId + 2 : (j > 0 ? this.textureId + 1 : this.textureId);
+    }
+
+    public int c() {
+        return 6;
+    }
+
+    public void dropNaturally(World world, int i, int j, int k, int l, float f, int i1) {
+        if (!world.isStatic) {
+            int j1 = 1;
+
+            if (l >= 3) {
+                j1 = 2 + world.random.nextInt(3);
+                if (i1 > 0) {
+                    j1 += world.random.nextInt(i1 + 1);
+                }
+            }
+
+            for (int k1 = 0; k1 < j1; ++k1) {
+                this.a(world, i, j, k, new ItemStack(Item.NETHER_STALK));
+            }
+        }
+    }
+
+    public int getDropType(int i, Random random, int j) {
+        return 0;
+    }
+
+    public int a(Random random) {
+        return 0;
+    }
+}