public static boolean removeItemInv(Player p, Material type, int amount) {
        if(getItemAmount(p, type) >= amount){
            for(int i = 0; i < amount; i++){
                removeOneItem(p, type);
            }
            return true;
        }

        return false;
    }

    public static void removeOneItem(Player p, Material type) {
        Inventory inv = p.getInventory();

        for (ItemStack is : inv.getContents()) {
            if (is != null && is.getType() == type) {
                int amount = is.getAmount()-1;

                if (amount > 0) {
                    is.setAmount(amount);
                    break;
                } else {
                    is.setType(Material.AIR);
                }
            }
        }
    }

    public static int getItemAmount(Player p, Material type){
        Inventory inv = p.getInventory();
        int count = -1;

        for (ItemStack is : inv.getContents()) {
            if (is != null && is.getType() == type) {
                count+=is.getAmount();
            }
        }

        return count;
    }