Random Giant spawn help

I am having trouble getting giants to spawn randomly

Code:

    @EventHandler(priority = EventPriority.NORMAL)
    public void onCreatureSpawn(CreatureSpawnEvent event) {
        Entity entity = event.getEntity();
        EntityType type = event.getEntityType();
 
        if (!API.getGiantSpawnWorlds().contains(entity.getWorld().getName())) {
            return;
        }
 
        if ((type == EntityType.ZOMBIE) || (type == EntityType.SKELETON) || (type == EntityType.SPIDER) || (type == EntityType.CREEPER) || (type == EntityType.ENDERMAN)) {
            String string = API.getConfig().getProperty(config, Config.spawnChance);
            int sRate;
            try {
                sRate = Integer.parseInt(string);
            } catch (NumberFormatException e) {
                sRate = 0;
            }
            int chance = 100 - sRate;
 
            Random rand = new Random();
            int choice = rand.nextInt(100) < chance ? 1 : 0;
            if (choice == 0) {
                Location location = event.getEntity().getLocation();
                double x = location.getX();
                double y = location.getY();
                double z = location.getZ();
 
                int x2 = (int) x;
                int y2 = (int) y;
                int z2 = (int) z;
 
                int spawngiant = 1;
                int checkcount = 0;
                while (checkcount < 10) {
                    y2 += checkcount;
 
                    if (entity.getWorld().getBlockTypeIdAt(x2, y2, z2) != 0) {
                        spawngiant = 0;
                    }
                    checkcount++;
                }
                if (spawngiant == 1) {
                    SpawnEvent SE = new SpawnEvent(location);
                    Bukkit.getServer().getPluginManager().callEvent(SE);
                }
            }
        }
    }

My SpawnEvent class states:

Code:

    public SpawnEvent(Location loc) {
        location = loc;
 
        if (!API.getGiantSpawnWorlds().contains(loc.getWorld().getName())) {
            setCancelled(true);
        }
 
        if (!isCancelled()) {
            entity = loc.getWorld().spawnEntity(location, EntityType.GIANT);
        }
    }

Can anyone help me out?

 

Why not have a utility to get a random boolean, check if the entity is hostile, cancel the event, then spawn a giant there? Looks like you have a lot more code than needed. Also, are you getting any errors?

 

Could you show me an example :3 I don't really understand...

Nope, no errors...

 

Run the same check you had, with the EntityType, then use the boolean below(Modify it to your probability), and if it's true, spawn a giant at the desired spot.

PHP:

public boolean getRnd() {
  Random r = new Random();
  return t.nextInt(1) == 0;
}