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using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class PlayerState : MonoBehaviour
{
    public static PlayerState Instance { get; set; }
    public float currentHealth;
    public float maxHealth;
    public float currentCalories;
    public float maxCalories;
    public float currentHydration;
    public float maxHydration;

    float distanceTraveled = 0;
    Vector3 lastPosition;

    public GameObject playerBody;

    public bool isHydrationActive = true;

    private void Awake()
    {
        if (Instance != null && Instance != this)
        {
            DestroyObject(gameObject);
        }
        else
        {
            Instance = this;
        }

    }

    // Start is called before the first frame update
    void Start()
    {
        currentHealth = maxHealth;
        currentCalories = maxCalories;
        currentHydration = maxHydration;

        StartCoroutine(decreaseHydration());
    }

    IEnumerator decreaseHydration()
    {
        while (isHydrationActive)
        {
            currentHydration--;
            yield return new WaitForSeconds(20);
        }

    }

    // Update is called once per frame
    void Update()
    {
        distanceTraveled += Vector3.Distance(playerBody.transform.position, lastPosition);
        lastPosition = playerBody.transform.position;

        if (distanceTraveled >= 5)
        {
            distanceTraveled = 0;
            currentCalories--;
        }
    }

    public void setCalories(float newCalories)
    {
        currentCalories = newCalories;
    }

    internal void setHydration(float newHydration)
    {
        currentHydration = newHydration;
    }

    internal void setHealth(float newHealth)
    {
        currentHealth = newHealth;
    }
}