DiscoArmor

package me.pogostick29dev.discoarmor;

import java.util.Random;

import org.bukkit.Bukkit;
import org.bukkit.Color;
import org.bukkit.Material;
import org.bukkit.entity.Player;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.meta.LeatherArmorMeta;
import org.bukkit.plugin.java.JavaPlugin;

public class DiscoArmor extends JavaPlugin {

    public void onEnable() {
        Bukkit.getServer().getScheduler().scheduleSyncRepeatingTask(this, new Runnable() {
            private Random r = new Random();

            public void run() {
                Color c = Color.fromRGB(r.nextInt(255), r.nextInt(255), r.nextInt(255));

                for (Player p : Bukkit.getServer().getOnlinePlayers()) {
                    if (p.getInventory().getHelmet() != null && p.getInventory().getHelmet().getType() == Material.LEATHER_HELMET) {
                        p.getInventory().setHelmet(getColorArmor(Material.LEATHER_HELMET, c));
                    }

                    if (p.getInventory().getChestplate() != null && p.getInventory().getChestplate().getType() == Material.LEATHER_CHESTPLATE) {
                        p.getInventory().setChestplate(getColorArmor(Material.LEATHER_CHESTPLATE, c));
                    }

                    if (p.getInventory().getLeggings() != null && p.getInventory().getLeggings().getType() == Material.LEATHER_LEGGINGS) {
                        p.getInventory().setLeggings(getColorArmor(Material.LEATHER_LEGGINGS, c));
                    }

                    if (p.getInventory().getBoots() != null && p.getInventory().getBoots().getType() == Material.LEATHER_BOOTS) {
                        p.getInventory().setBoots(getColorArmor(Material.LEATHER_BOOTS, c));
                    }
                }
            }
        }, 0, 1);
    }

    private ItemStack getColorArmor(Material m, Color c) {
        ItemStack i = new ItemStack(m, 1);
        LeatherArmorMeta meta = (LeatherArmorMeta) i.getItemMeta();
        meta.setColor(c);
        i.setItemMeta(meta);
        return i;
    }
}