LootCrate_Space.java

package com.scruffyrules.lootcrate;

import java.util.Random;

import org.bukkit.ChatColor;
import org.bukkit.Material;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.configuration.file.FileConfiguration;
import org.bukkit.entity.Player;
import org.bukkit.inventory.Inventory;
import org.bukkit.inventory.ItemStack;
import org.bukkit.plugin.java.JavaPlugin;

import com.scruffyrules.lootcrate.util.Utility;

public class LootCrate extends JavaPlugin {
    
//    TODO Random Items
//    TODO Store in config
//    TODO 
//    TODO 
//    TODO 
//    TODO 
//    TODO 
    
    public static FileConfiguration config;
    
    public void onDisable() {
        config = null;
    }
    
    public void onEnable() {
        saveDefaultConfig();
        config = getConfig();
        getServer().getPluginManager().registerEvents(new LootCrateListener(), this);
        getCommand("lootcrate");
    }
    
    @Override
    public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
        if (!(sender instanceof Player)) {sender.sendMessage("Only a player can do this!");return true;}
        Player player = (Player) sender;
        ItemStack LootCrateItem = new ItemStack(Material.CHEST, 1);
        Utility.nameItem(LootCrateItem, ChatColor.DARK_PURPLE + "LootCrate");
        player.getInventory().addItem(LootCrateItem);
        return true;
    }
    
    public static String getRandomCrate() {
        String hi = "";
        for (String str : config.getKeys(true)) {
            hi += str + ";";
        }
        return hi.split(";")[new Random().nextInt(hi.split(";").length)];
    }
    
    public static ItemStack getItemFromCustomString(String string) {
        String[] split = string.split(",");
        String item = split[0];
        int min = Integer.parseInt(split[1]);
        int max = Integer.parseInt(split[2]);
        
        int amount = new Random().nextInt((max - min) + 1) + min;
        if (amount == 0) {
            return new ItemStack(Material.AIR);
        }
        return new ItemStack(Material.getMaterial(item), amount);
    }
    
    public static int getRandomInventorySlot(Inventory inventory) {
        int random = new Random().nextInt(inventory.getSize());
        if (inventory.getItem(random) != null) {
            getRandomInventorySlot(inventory);
        }
        return random;
    }
    
    public static void setCrateInventory(Inventory inventory) {
        for (String string : config.getString(getRandomCrate()).substring(1).split("-")) {
            inventory.setItem(getRandomInventorySlot(inventory), getItemFromCustomString(string.trim()));
        }
    }
}

LootCrateListener_Space.java

package com.scruffyrules.lootcrate;

import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.Location;
import org.bukkit.Material;
import org.bukkit.block.Block;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.block.Action;
import org.bukkit.event.block.BlockPlaceEvent;
import org.bukkit.event.inventory.InventoryCloseEvent;
import org.bukkit.event.inventory.InventoryType;
import org.bukkit.event.player.PlayerInteractEvent;
import org.bukkit.inventory.Inventory;
import org.bukkit.metadata.FixedMetadataValue;

public class LootCrateListener implements Listener {
    
    @EventHandler
    public void openCrate(PlayerInteractEvent event) {
        if (!event.getAction().equals(Action.RIGHT_CLICK_BLOCK)) return;
        if (!event.getClickedBlock().hasMetadata("LootCrate")) return;
        if (event.getClickedBlock().hasMetadata("LootCrate-Active")) return;
        if (event.getPlayer().isSneaking()) return;
        
        event.getClickedBlock().setMetadata("LootCrate-Active", new FixedMetadataValue(LootCrate.getPlugin(LootCrate.class), true));
        Player player = event.getPlayer();
        player.setMetadata("LootCrate-Block", new FixedMetadataValue(LootCrate.getPlugin(LootCrate.class), event.getClickedBlock().getLocation()));
        Inventory inventory = Bukkit.createInventory(player, InventoryType.CHEST, ChatColor.DARK_PURPLE + "LootCrate");
        LootCrate.setCrateInventory(inventory);
        player.openInventory(inventory);
    }
    
    @EventHandler
    public void closeCrate(InventoryCloseEvent event) {
        if (event.getInventory().getTitle() == null) return;
        if (!event.getInventory().getTitle().equals(ChatColor.DARK_PURPLE + "LootCrate")) return;
        if (!event.getPlayer().hasMetadata("LootCrate-Block")) return;
        
        Block block = Bukkit.getWorld("world").getBlockAt((Location)event.getPlayer().getMetadata("LootCrate-Block").get(0).value());
        block.removeMetadata("LootCrate-Active", LootCrate.getPlugin(LootCrate.class));
        block.setType(Material.AIR);
        event.getPlayer().removeMetadata("LootCrate-Block", LootCrate.getPlugin(LootCrate.class));
    }
    
    @SuppressWarnings("deprecation")
    @EventHandler
    public void placeCrate(BlockPlaceEvent event) {
        if (event.getItemInHand().getItemMeta().getDisplayName() == null) return;
        if (!event.getItemInHand().getItemMeta().getDisplayName().equals(ChatColor.DARK_PURPLE + "LootCrate")) return;
        event.getBlock().setType(Material.PISTON_BASE);
        event.getBlock().setData((byte) 7);
        event.getBlock().setMetadata("LootCrate", new FixedMetadataValue(LootCrate.getPlugin(LootCrate.class), true));
    }
}