Build an RPG

public class HealthSystem : MonoBehaviour
{
    [SerializeField] private float maxHealth = 100f;
    public float HealthPercent => currentHealth / maxHealth;
    public void TakeDamage(float damage)
    public void Heal(float amount)

public class SimpleInventory : MonoBehaviour
{
    [SerializeField] private int maxSlots = 20;
    public int AddItem(string itemId, int quantity = 1)
    public int RemoveItem(string itemId, int quantity = 1)

public class DialogueTrigger : MonoBehaviour
{
    [SerializeField] private string speakerName = "NPC";
    [SerializeField] [TextArea(2, 5)] private string[] messages;
    public void StartDialogue()

public class QuestSystem : MonoBehaviour
{
    public static QuestSystem Instance { get; private set; }
    public bool AcceptQuest(QuestData quest)
    public void ReportProgress(string objectiveId, int amount = 1)

public static class JsonSaveUtility
{
    public static void Save<T>(T data, string fileName)
    public static T Load<T>(string fileName)
    public static bool Exists(string fileName)

public class DamagePopup : MonoBehaviour
{
    public static DamagePopup Create(
        Vector3 position, float amount,
        bool isCritical = false, bool isHeal = false)

public class HealthBarUI : MonoBehaviour
{
    [SerializeField] private float smoothSpeed = 5f;
    [SerializeField] private Gradient colorGradient;
    public void SetHealth(float current, float max)

public interface IInteractable
{
    string InteractionPrompt { get; }
    void Interact(GameObject interactor);
}

public class TooltipSystem : MonoBehaviour
{
    public static TooltipSystem Instance { get; private set; }
    public static void Show(string header, string body = "")
    public static void Hide()