Added BlockMycel.java for diff visibility

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

@@ -0,0 +1,39 @@
+package net.minecraft.server;
+
+import java.util.Random;
+
+public class BlockMycel extends Block {
+
+    protected BlockMycel(int i) {
+        super(i, Material.GRASS);
+        this.textureId = 77;
+        this.a(true);
+    }
+
+    public int a(int i, int j) {
+        return i == 1 ? 78 : (i == 0 ? 2 : 77);
+    }
+
+    public void a(World world, int i, int j, int k, Random random) {
+        if (!world.isStatic) {
+            if (world.getLightLevel(i, j + 1, k) < 4 && Block.q[world.getTypeId(i, j + 1, k)] > 2) {
+                world.setTypeId(i, j, k, Block.DIRT.id);
+            } else if (world.getLightLevel(i, j + 1, k) >= 9) {
+                for (int l = 0; l < 4; ++l) {
+                    int i1 = i + random.nextInt(3) - 1;
+                    int j1 = j + random.nextInt(5) - 3;
+                    int k1 = k + random.nextInt(3) - 1;
+                    int l1 = world.getTypeId(i1, j1 + 1, k1);
+
+                    if (world.getTypeId(i1, j1, k1) == Block.DIRT.id && world.getLightLevel(i1, j1 + 1, k1) >= 4 && Block.q[l1] <= 2) {
+                        world.setTypeId(i1, j1, k1, this.id);
+                    }
+                }
+            }
+        }
+    }
+
+    public int getDropType(int i, Random random, int j) {
+        return Block.DIRT.getDropType(0, random, j);
+    }
+}