PlayerHealth

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

public class PlayerHealth : MonoBehaviour
{
    public int startingHealth = 20;                        // The health the player starts with at the beginning of the game.
    public int currentHealth;                              // The current amount of health the player has.

    public GameObject bluePlayer;                          // References the blue player's game object.
    PlayerMovement playerMovement;                         // References the PlayerMovement script.

    bool isDead;                                           // Determines if the player is dead or not.
    bool damaged;                                          // Determines if the player was just damaged.

    private void Awake()
    {
        playerMovement = GetComponent<PlayerMovement>();   // References the PlayerMovement script.

        currentHealth = startingHealth;                    // Sets the player's current health to the starting health.
    }

    private void Update()
    {
        if (damaged)
        {
            TakeDamage(5);
        }
        damaged = false;                                   // If the player is damaged, deal 5 damage,
                                                           // then set the damaged state to false.
    }

    public void TakeDamage (int amount)
    {
        damaged = true;                                    // Sets the damaged state to true.

        currentHealth -= amount;                           // Subtracts the amount of health that the enemy
                                                           // deals, specified in the different enemy Attack scripts.

        if (currentHealth <= 0 && !isDead)
        {
            Death();
        }                                                  // If the player's current health is less than or
                                                           // equal to 0 and the player isn't dead already,
                                                           // kill the player.
    }

    void Death ()
    {
        isDead = true;                                     // Sets the isDead state to true.

        playerMovement.enabled = false;                    // Disables the player's movement.
        Destroy(bluePlayer);                               // Removes the blue player game object from the scene.
    }
}