Paper/nms-patches/ItemFireball.patch

--- ../work/decompile-bb26c12b/net/minecraft/server/ItemFireball.java	2014-11-27 08:59:46.777421512 +1100
+++ src/main/java/net/minecraft/server/ItemFireball.java	2014-11-27 08:42:10.124850965 +1100
@@ -15,7 +15,15 @@
                 return false;
             } else {
                 if (world.getType(blockposition).getBlock().getMaterial() == Material.AIR) {
-                    world.makeSound((double) blockposition.getX() + 0.5D, (double) blockposition.getY() + 0.5D, (double) blockposition.getZ() + 0.5D, "item.fireCharge.use", 1.0F, (ItemFireball.g.nextFloat() - ItemFireball.g.nextFloat()) * 0.2F + 1.0F);
+                    // CraftBukkit start - fire BlockIgniteEvent
+                    if (org.bukkit.craftbukkit.event.CraftEventFactory.callBlockIgniteEvent(world, blockposition.getX(), blockposition.getY(), blockposition.getZ(), org.bukkit.event.block.BlockIgniteEvent.IgniteCause.FIREBALL, entityhuman).isCancelled()) {
+                        if (!entityhuman.abilities.canInstantlyBuild) {
+                            --itemstack.count;
+                        }
+                        return false;
+                    }
+                    // CraftBukkit end
+                    world.makeSound((double) blockposition.getX() + 0.5D, (double) blockposition.getY() + 0.5D, (double) blockposition.getZ() + 0.5D, "item.fireCharge.use", 1.0F, (g.nextFloat() - g.nextFloat()) * 0.2F + 1.0F);
                     world.setTypeUpdate(blockposition, Blocks.FIRE.getBlockData());
                 }