Added BlockSpread, BlockForm and BlockFade events.

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

@@ -0,0 +1,51 @@
+package net.minecraft.server;
+
+import java.util.Random;
+
+// CraftBukkit start
+import org.bukkit.block.BlockState;
+import org.bukkit.craftbukkit.CraftServer;
+import org.bukkit.craftbukkit.CraftWorld;
+import org.bukkit.event.block.BlockFadeEvent;
+// CraftBukkit end
+
+public class BlockIce extends BlockBreakable {
+
+    public BlockIce(int i, int j) {
+        super(i, j, Material.ICE, false);
+        this.frictionFactor = 0.98F;
+        this.a(true);
+    }
+
+    public void remove(World world, int i, int j, int k) {
+        Material material = world.getMaterial(i, j - 1, k);
+
+        if (material.isSolid() || material.isLiquid()) {
+            world.setTypeId(i, j, k, Block.WATER.id);
+        }
+    }
+
+    public int a(Random random) {
+        return 0;
+    }
+
+    public void a(World world, int i, int j, int k, Random random) {
+        if (world.a(EnumSkyBlock.BLOCK, i, j, k) > 11 - Block.q[this.id]) {
+            // CraftBukkit start
+            CraftServer server = world.getServer();
+            CraftWorld cworld = world.getWorld();
+            BlockState blockState = cworld.getBlockAt(i, j, k).getState();
+            blockState.setTypeId(this.id);
+
+            BlockFadeEvent event = new BlockFadeEvent(cworld.getBlockAt(i, j, k), blockState);
+            server.getPluginManager().callEvent(event);
+            if (event.isCancelled()) {
+                return;
+            }
+            // CraftBukkit end
+
+            this.b_(world, i, j, k, world.getData(i, j, k));
+            world.setTypeId(i, j, k, Block.STATIONARY_WATER.id);
+        }
+    }
+}