Add BlockMobSpawner and BlockOre for diff visibility

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

@@ -0,0 +1,33 @@
+package net.minecraft.server;
+
+import java.util.Random;
+
+public class BlockMobSpawner extends BlockContainer {
+
+    protected BlockMobSpawner(int i, int j) {
+        super(i, j, Material.STONE);
+    }
+
+    public TileEntity a(World world) {
+        return new TileEntityMobSpawner();
+    }
+
+    public int getDropType(int i, Random random, int j) {
+        return 0;
+    }
+
+    public int a(Random random) {
+        return 0;
+    }
+
+    public void dropNaturally(World world, int i, int j, int k, int l, float f, int i1) {
+        super.dropNaturally(world, i, j, k, l, f, i1);
+        int j1 = 15 + world.random.nextInt(15) + world.random.nextInt(15);
+
+        this.g(world, i, j, k, j1);
+    }
+
+    public boolean d() {
+        return false;
+    }
+}

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

@@ -0,0 +1,56 @@
+package net.minecraft.server;
+
+import java.util.Random;
+
+public class BlockOre extends Block {
+
+    public BlockOre(int i, int j) {
+        super(i, j, Material.STONE);
+        this.a(CreativeModeTab.b);
+    }
+
+    public int getDropType(int i, Random random, int j) {
+        return this.id == Block.COAL_ORE.id ? Item.COAL.id : (this.id == Block.DIAMOND_ORE.id ? Item.DIAMOND.id : (this.id == Block.LAPIS_ORE.id ? Item.INK_SACK.id : (this.id == Block.EMERALD_ORE.id ? Item.EMERALD.id : this.id)));
+    }
+
+    public int a(Random random) {
+        return this.id == Block.LAPIS_ORE.id ? 4 + random.nextInt(5) : 1;
+    }
+
+    public int getDropCount(int i, Random random) {
+        if (i > 0 && this.id != this.getDropType(0, random, i)) {
+            int j = random.nextInt(i + 2) - 1;
+
+            if (j < 0) {
+                j = 0;
+            }
+
+            return this.a(random) * (j + 1);
+        } else {
+            return this.a(random);
+        }
+    }
+
+    public void dropNaturally(World world, int i, int j, int k, int l, float f, int i1) {
+        super.dropNaturally(world, i, j, k, l, f, i1);
+        if (this.getDropType(l, world.random, i1) != this.id) {
+            int j1 = 0;
+
+            if (this.id == Block.COAL_ORE.id) {
+                j1 = MathHelper.a(world.random, 0, 2);
+            } else if (this.id == Block.DIAMOND_ORE.id) {
+                j1 = MathHelper.a(world.random, 3, 7);
+            } else if (this.id == Block.EMERALD_ORE.id) {
+                j1 = MathHelper.a(world.random, 3, 7);
+            } else if (this.id == Block.LAPIS_ORE.id) {
+                j1 = MathHelper.a(world.random, 2, 5);
+            }
+
+            this.g(world, i, j, k, j1);
+        }
+    }
+
+    protected int getDropData(int i) {
+        return this.id == Block.LAPIS_ORE.id ? 4 : 0;
+    }
+}