Tracking.java (Main Class)

package me.bukkit.looloosha.tracking;

import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.Material;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.inventory.FurnaceRecipe;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.meta.ItemMeta;
import org.bukkit.plugin.java.JavaPlugin;
import org.bukkit.potion.Potion;
import org.bukkit.potion.PotionType;


public class Tracking extends JavaPlugin{

    private static Tracking instance;
    public TrackTasks tasks = new TrackTasks();

    public boolean isEnabled = true;

    public int trackTaskID;

    public void onEnable(){
        //Adds Clean Water Recipe
        Material waterBottle = (Material.POTION);
        ItemStack cleanWaterBottle = new ItemStack(Material.POTION, 1, (byte) 0);
        ItemMeta m = cleanWaterBottle.getItemMeta();
        m.setDisplayName("Clean Water");
        cleanWaterBottle.setItemMeta(m);
        FurnaceRecipe cleanWater = new FurnaceRecipe(cleanWaterBottle, waterBottle);
        Bukkit.getServer().addRecipe(cleanWater);

        Bukkit.getServer().getPluginManager().registerEvents(new Fatigue(), this);
        Bukkit.getServer().getPluginManager().registerEvents(new HydrationListeners(), this);
        instance = this;
        tasks.trackTask();

    }
    public boolean onCommand(CommandSender sender, Command cmd, String label, String[] args){
        if(label.equals("track")){
            isEnabled = !isEnabled;
            if(isEnabled){
                sender.sendMessage(ChatColor.GREEN + "Tracking has now been enabled!");
                tasks.trackTask();
            }
            if(isEnabled == false){
                sender.sendMessage(ChatColor.RED + "Tracking has now been disabled!");
                tasks.cancelTrackTask();
            }
        }
        return false;
    }

    public static Tracking getInstance(){
        return instance;
    }
}