API.md

Developer API Documentation

Overview

SpawnChestPlugin provides a comprehensive API for developers to integrate with the plugin, create addons, and extend functionality.

Maven Dependency

Add Repository

<repositories>
    <repository>
        <id>spawnchest-repo</id>
        <url>https://your-maven-repo.com/releases</url>
    </repository>
</repositories>

Add Dependency

<dependencies>
    <dependency>
        <groupId>com.myplugin</groupId>
        <artifactId>SpawnChestPlugin</artifactId>
        <version>4.1.5</version>
        <scope>provided</scope>
    </dependency>
</dependencies>

Gradle Dependency

repositories {
    maven {
        url 'https://your-maven-repo.com/releases'
    }
}

dependencies {
    compileOnly 'com.myplugin:SpawnChestPlugin:4.1.5'
}

Getting Plugin Instance

import com.myplugin.SpawnChestPlugin;
import org.bukkit.plugin.Plugin;

public class YourPlugin extends JavaPlugin {
    
    private SpawnChestPlugin spawnChestPlugin;
    
    @Override
    public void onEnable() {
        Plugin plugin = getServer().getPluginManager().getPlugin("SpawnChestPlugin");
        
        if (plugin instanceof SpawnChestPlugin) {
            spawnChestPlugin = (SpawnChestPlugin) plugin;
            getLogger().info("SpawnChestPlugin hooked!");
        } else {
            getLogger().warning("SpawnChestPlugin not found!");
            getServer().getPluginManager().disablePlugin(this);
        }
    }
}

Events API

ChestSpawnEvent

Fired when a chest is about to spawn.

import com.myplugin.events.ChestSpawnEvent;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;

public class ChestListener implements Listener {
    
    @EventHandler
    public void onChestSpawn(ChestSpawnEvent event) {
        String tier = event.getTier();
        Location location = event.getLocation();
        
        // Get chest block
        Block chestBlock = event.getChestBlock();
        
        // Modify location
        Location newLocation = location.clone().add(0, 5, 0);
        event.setLocation(newLocation);
        
        // Cancel event
        if (tier.equals("legendary")) {
            event.setCancelled(true);
            event.setCancelReason("Legendary chests disabled!");
        }
        
        // Check if cancelled
        if (event.isCancelled()) {
            String reason = event.getCancelReason();
            // Handle cancellation
        }
    }
}

Methods:

String getTier() - Get chest tier (common/rare/legendary)
Location getLocation() - Get spawn location
void setLocation(Location) - Change spawn location
Block getChestBlock() - Get chest block
boolean isCancelled() - Check if cancelled
void setCancelled(boolean) - Cancel event
String getCancelReason() - Get cancellation reason
void setCancelReason(String) - Set cancellation reason

ChestOpenEvent

Fired when a player opens a spawned chest.

import com.myplugin.events.ChestOpenEvent;

@EventHandler
public void onChestOpen(ChestOpenEvent event) {
    Player player = event.getPlayer();
    String tier = event.getTier();
    Location location = event.getLocation();
    Inventory inventory = event.getInventory();
    
    // Give reward
    player.sendMessage("You opened a " + tier + " chest!");
    
    // Add custom loot
    inventory.addItem(new ItemStack(Material.DIAMOND, 5));
    
    // Cancel event (prevent opening)
    if (!player.hasPermission("chest.open." + tier)) {
        event.setCancelled(true);
        player.sendMessage("No permission!");
    }
}

Methods:

Player getPlayer() - Get player opening chest
String getTier() - Get chest tier
Location getLocation() - Get chest location
Inventory getInventory() - Get chest inventory
boolean isCancelled() - Check if cancelled
void setCancelled(boolean) - Cancel event

GuardianSpawnEvent

Fired when guardian mobs spawn.

import com.myplugin.events.GuardianSpawnEvent;

@EventHandler
public void onGuardianSpawn(GuardianSpawnEvent event) {
    String tier = event.getTier();
    Location chestLocation = event.getChestLocation();
    List<Entity> guardians = event.getGuardians();
    
    // Modify guardians
    for (Entity entity : guardians) {
        if (entity instanceof LivingEntity) {
            LivingEntity mob = (LivingEntity) entity;
            
            // Add custom equipment
            mob.getEquipment().setHelmet(new ItemStack(Material.DIAMOND_HELMET));
            
            // Add potion effect
            mob.addPotionEffect(new PotionEffect(
                PotionEffectType.INCREASE_DAMAGE, 
                999999, 
                2
            ));
        }
    }
    
    // Cancel spawning
    if (tier.equals("common")) {
        event.setCancelled(true);
    }
}

Methods:

String getTier() - Get chest tier
Location getChestLocation() - Get chest location
List<Entity> getGuardians() - Get guardian entities
void setGuardians(List<Entity>) - Replace guardians
boolean isCancelled() - Check if cancelled
void setCancelled(boolean) - Cancel event

LegendaryItemUseEvent

Fired when legendary item ability is used.

import com.myplugin.events.LegendaryItemUseEvent;

@EventHandler
public void onLegendaryUse(LegendaryItemUseEvent event) {
    Player player = event.getPlayer();
    String itemId = event.getItemId();
    ItemStack item = event.getItem();
    
    // Check which item
    if (itemId.equals("dragon-slayer-sword")) {
        // Custom logic
        player.sendMessage("Dragon Slayer activated!");
    }
    
    // Cancel ability (but allow normal attack)
    if (player.getHealth() < 5.0) {
        event.setCancelled(true);
        player.sendMessage("Too weak to use ability!");
    }
    
    // Modify cooldown
    event.setCooldownMillis(5000); // 5 seconds
}

Methods:

Player getPlayer() - Get player using item
String getItemId() - Get item identifier
ItemStack getItem() - Get ItemStack
long getCooldownMillis() - Get cooldown
void setCooldownMillis(long) - Change cooldown
boolean isCancelled() - Check if cancelled
void setCancelled(boolean) - Cancel event

AchievementUnlockEvent

Fired when player unlocks achievement.

import com.myplugin.events.AchievementUnlockEvent;

@EventHandler
public void onAchievement(AchievementUnlockEvent event) {
    Player player = event.getPlayer();
    String achievementId = event.getAchievementId();
    int xpReward = event.getXpReward();
    
    // Give custom reward
    if (achievementId.equals("first-chest")) {
        player.getInventory().addItem(new ItemStack(Material.DIAMOND, 1));
    }
    
    // Modify XP reward
    event.setXpReward(xpReward * 2); // Double XP
    
    // Prevent broadcast
    event.setBroadcast(false);
}

Methods:

Player getPlayer() - Get player
String getAchievementId() - Get achievement ID
int getXpReward() - Get XP reward
void setXpReward(int) - Change XP reward
boolean isBroadcast() - Check if broadcasts
void setBroadcast(boolean) - Change broadcast
boolean isCancelled() - Check if cancelled
void setCancelled(boolean) - Cancel event

Manager APIs

SpawnManager

Manage chest spawning.

import com.myplugin.managers.SpawnManager;

SpawnManager spawnManager = spawnChestPlugin.getSpawnManager();

// Spawn chest immediately
Location location = new Location(world, 100, 64, 200);
boolean success = spawnManager.spawnChest(location, "legendary");

// Get next spawn time
long timeMillis = spawnManager.getNextSpawnTime();
long remainingSeconds = (timeMillis - System.currentTimeMillis()) / 1000;

// Set spawn interval
spawnManager.setSpawnInterval(600); // 10 minutes

// Reset timer
spawnManager.resetTimer();

// Get active chests
List<Location> activeChests = spawnManager.getActiveChests();

// Remove chest
spawnManager.removeChest(location);

LootManager

Manage loot generation.

import com.myplugin.managers.LootManager;

LootManager lootManager = spawnChestPlugin.getLootManager();

// Generate loot for tier
List<ItemStack> loot = lootManager.generateLoot("rare");

// Add custom loot item
ItemStack customItem = new ItemStack(Material.DIAMOND_SWORD);
lootManager.addCustomLoot("common", customItem);

// Get legendary items
List<ItemStack> legendaryItems = lootManager.getLegendaryItems();

// Check if item is legendary
boolean isLegendary = lootManager.isLegendaryItem(itemStack);

// Get item ID
String itemId = lootManager.getLegendaryItemId(itemStack);

StatisticsManager

Manage player statistics.

import com.myplugin.managers.StatisticsManager;

StatisticsManager statsManager = spawnChestPlugin.getStatisticsManager();

// Get player stats
UUID playerUuid = player.getUniqueId();
PlayerStats stats = statsManager.getPlayerStats(playerUuid);

// Chest stats
int totalChests = stats.getChestsOpened();
int commonChests = stats.getCommonChestsOpened();
int rareChests = stats.getRareChestsOpened();
int legendaryChests = stats.getLegendaryChestsOpened();

// Other stats
int legendaryItems = stats.getLegendaryItemsFound();
int guardiansKilled = stats.getGuardiansKilled();
int applesUsed = stats.getSummonerApplesUsed();
int xp = stats.getCurrentXP();

// Modify stats
stats.addChestOpened("legendary");
stats.addLegendaryItemFound();
stats.addGuardianKilled();
stats.addXP(500);

// Save stats
statsManager.savePlayerStats(playerUuid, stats);

// Get leaderboard
List<PlayerStats> topPlayers = statsManager.getTopPlayers(10);

AchievementManager

Manage achievements.

import com.myplugin.managers.AchievementManager;

AchievementManager achievementManager = spawnChestPlugin.getAchievementManager();

// Check if unlocked
boolean unlocked = achievementManager.hasAchievement(playerUuid, "first-chest");

// Unlock achievement
achievementManager.unlockAchievement(player, "treasure-hunter");

// Get all achievements
List<String> allAchievements = achievementManager.getAllAchievementIds();

// Get player's achievements
Set<String> playerAchievements = achievementManager.getPlayerAchievements(playerUuid);

// Get achievement progress
int progress = achievementManager.getProgress(playerUuid, "chest-master");
int required = achievementManager.getRequired("chest-master");

CustomLootManager

Manage custom loot tables.

import com.myplugin.managers.CustomLootManager;

CustomLootManager customLootManager = spawnChestPlugin.getCustomLootManager();

// Check if custom loot enabled
boolean enabled = customLootManager.isCustomLootEnabled("legendary");

// Get custom loot items
List<ItemStack> customItems = customLootManager.getCustomLoot("rare");

// Get random custom loot (with fraction applied)
List<ItemStack> randomItems = customLootManager.getRandomCustomLoot("legendary");

// Check chest size
int chestSize = customLootManager.getChestSize("rare"); // 27 or 54
boolean isDouble = customLootManager.isDoubleChest("rare");

// Get item fraction
String fraction = customLootManager.getItemFraction("legendary"); // "one-third"

Utility Classes

ChestUtils

import com.myplugin.utils.ChestUtils;

// Check if location is safe for chest
boolean isSafe = ChestUtils.isSafeLocation(location);

// Find safe location nearby
Location safeLocation = ChestUtils.findSafeLocation(location, 10);

// Get chest from location
Chest chest = ChestUtils.getChest(location);

// Check if chest is spawned by plugin
boolean isPluginChest = ChestUtils.isSpawnedChest(location);

ItemBuilder

import com.myplugin.utils.ItemBuilder;

ItemStack item = new ItemBuilder(Material.DIAMOND_SWORD)
    .setName("§6Custom Sword")
    .addLore("§7First line")
    .addLore("§7Second line")
    .addEnchantment(Enchantment.DAMAGE_ALL, 5)
    .addEnchantment(Enchantment.DURABILITY, 3)
    .setUnbreakable(true)
    .addItemFlags(ItemFlag.HIDE_ENCHANTS)
    .setCustomModelData(12345)
    .build();

LocationUtils

import com.myplugin.utils.LocationUtils;

// Serialize location to string
String serialized = LocationUtils.serialize(location);

// Deserialize location from string
Location location = LocationUtils.deserialize(serialized);

// Get distance between locations
double distance = LocationUtils.distance(loc1, loc2);

// Check if location is in spawn zone
boolean inZone = LocationUtils.isInSpawnZone(location, minDist, maxDist);

Creating Custom Legendary Items

Step 1: Create Item

public class CustomLegendaryItem {
    
    public static ItemStack createItem() {
        return new ItemBuilder(Material.DIAMOND_AXE)
            .setName("§c§lThunder Axe")
            .addLore("§7Strikes enemies with lightning")
            .addLore("§7Cooldown: 5 seconds")
            .addEnchantment(Enchantment.DAMAGE_ALL, 6)
            .addEnchantment(Enchantment.DURABILITY, 5)
            .addItemFlags(ItemFlag.HIDE_ENCHANTS)
            .build();
    }
}

Step 2: Register Item

@Override
public void onEnable() {
    // Hook SpawnChestPlugin
    spawnChestPlugin = (SpawnChestPlugin) getServer().getPluginManager()
        .getPlugin("SpawnChestPlugin");
    
    // Register custom item
    LootManager lootManager = spawnChestPlugin.getLootManager();
    lootManager.registerLegendaryItem("thunder-axe", CustomLegendaryItem.createItem());
}

Step 3: Add Ability

@EventHandler
public void onItemUse(PlayerInteractEntityEvent event) {
    Player player = event.getPlayer();
    ItemStack item = player.getInventory().getItemInMainHand();
    
    // Check if our custom item
    if (isThunderAxe(item)) {
        Entity target = event.getRightClicked();
        
        // Strike with lightning
        target.getWorld().strikeLightningEffect(target.getLocation());
        
        if (target instanceof LivingEntity) {
            ((LivingEntity) target).damage(10.0, player);
        }
        
        // Set cooldown
        player.setCooldown(Material.DIAMOND_AXE, 100); // 5 seconds
    }
}

private boolean isThunderAxe(ItemStack item) {
    if (item == null || !item.hasItemMeta()) return false;
    ItemMeta meta = item.getItemMeta();
    return meta.hasDisplayName() && 
           meta.getDisplayName().equals("§c§lThunder Axe");
}

Hooking into Economy

Example: Give Money for Opening Chest

import net.milkbowl.vault.economy.Economy;

public class EconomyHook {
    
    private Economy economy;
    
    public void setupEconomy() {
        RegisteredServiceProvider<Economy> rsp = 
            getServer().getServicesManager().getRegistration(Economy.class);
        if (rsp != null) {
            economy = rsp.getProvider();
        }
    }
    
    @EventHandler
    public void onChestOpen(ChestOpenEvent event) {
        Player player = event.getPlayer();
        String tier = event.getTier();
        
        // Give money based on tier
        double amount = 0;
        switch (tier) {
            case "common": amount = 100; break;
            case "rare": amount = 500; break;
            case "legendary": amount = 2000; break;
        }
        
        if (economy != null) {
            economy.depositPlayer(player, amount);
            player.sendMessage("§a+$" + amount);
        }
    }
}

Example Addon: Chest Finder Compass

public class ChestFinderAddon extends JavaPlugin implements Listener {
    
    private SpawnChestPlugin spawnChestPlugin;
    
    @Override
    public void onEnable() {
        // Hook main plugin
        spawnChestPlugin = (SpawnChestPlugin) getServer()
            .getPluginManager().getPlugin("SpawnChestPlugin");
        
        // Register events
        getServer().getPluginManager().registerEvents(this, this);
        
        // Register command
        getCommand("chestfinder").setExecutor(this);
    }
    
    @Override
    public boolean onCommand(CommandSender sender, Command command, 
                            String label, String[] args) {
        if (!(sender instanceof Player)) return false;
        Player player = (Player) sender;
        
        // Get active chests
        SpawnManager spawnManager = spawnChestPlugin.getSpawnManager();
        List<Location> chests = spawnManager.getActiveChests();
        
        if (chests.isEmpty()) {
            player.sendMessage("§cNo chests currently spawned!");
            return true;
        }
        
        // Find nearest chest
        Location nearest = null;
        double minDist = Double.MAX_VALUE;
        
        for (Location chest : chests) {
            double dist = chest.distance(player.getLocation());
            if (dist < minDist) {
                minDist = dist;
                nearest = chest;
            }
        }
        
        // Point compass
        player.setCompassTarget(nearest);
        player.sendMessage(String.format(
            "§aCompass pointing to nearest chest! (%.0f blocks away)", 
            minDist
        ));
        
        return true;
    }
}

Best Practices

1. Check Plugin Enabled

@Override
public void onEnable() {
    if (!getServer().getPluginManager().isPluginEnabled("SpawnChestPlugin")) {
        getLogger().severe("SpawnChestPlugin not found!");
        getServer().getPluginManager().disablePlugin(this);
        return;
    }
}

2. Handle Events Properly

@EventHandler(priority = EventPriority.NORMAL, ignoreCancelled = true)
public void onChestSpawn(ChestSpawnEvent event) {
    // Your logic
}

3. Don't Block Main Thread

//  BAD - blocking
player.sendMessage("Loading...");
List<ItemStack> loot = generateComplexLoot(); // Takes 5 seconds
inventory.setContents(loot.toArray(new ItemStack[0]));

//  GOOD - async
player.sendMessage("Loading...");
Bukkit.getScheduler().runTaskAsynchronously(plugin, () -> {
    List<ItemStack> loot = generateComplexLoot();
    
    Bukkit.getScheduler().runTask(plugin, () -> {
        inventory.setContents(loot.toArray(new ItemStack[0]));
    });
});

4. Handle Nulls

PlayerStats stats = statsManager.getPlayerStats(uuid);
if (stats != null) {
    int chests = stats.getChestsOpened();
    // Use stats
} else {
    // Create new stats
    stats = new PlayerStats(uuid);
}

Support for Developers

Questions about API:

GitHub Discussions: (https://github.com/Fragmer2/ChestSpawn/pulls)
Discord #plugins-chat (https://discord.gg/gECH2pESRJ)
Email: ahapcka@gmail.com

Contributing:

Fork repository
Make changes
Submit pull request

License: MIT (modify freely)

API.md

Developer API Documentation

Overview

Maven Dependency

Add Repository

Add Dependency

Gradle Dependency

Getting Plugin Instance

Events API

ChestSpawnEvent

ChestOpenEvent

GuardianSpawnEvent

LegendaryItemUseEvent

AchievementUnlockEvent

Manager APIs

SpawnManager

LootManager

StatisticsManager

AchievementManager

CustomLootManager

Utility Classes

ChestUtils

ItemBuilder

LocationUtils

Creating Custom Legendary Items

Step 1: Create Item

Step 2: Register Item

Step 3: Add Ability

Hooking into Economy

Example: Give Money for Opening Chest

Example Addon: Chest Finder Compass

Best Practices

1. Check Plugin Enabled

2. Handle Events Properly

3. Don't Block Main Thread

4. Handle Nulls

Support for Developers

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