// worldObj.setBlock((int) posX, (int) posY, (int) posZ,
// mod_Dragon.blockFire.blockID);
// ((BlockFireball) mod_Dragon.blockFire).spreadSource(worldObj,
// (int) posX, (int) posY,
// (int) posZ);
FireExplosion explosion = new FireExplosion(worldObj, null, posX, posY, posZ, 1F);
explosion.doExplosionA();
explosion.doExplosionB(true);
}