PlayerHealth Script

PlayerHealth:

using UnityEngine;

using UnityEngine.UI;

using System.Collections;

public class PlayerHealth : MonoBehaviour

{

                public int startingHealth = 100; // The amount of health the player starts the game with.;

                public int currentHealth;        // The current health the player has.

                public Slider healthSlider;      // Reference to the UI's health bar.

                public Image damageImage;        // Reference to an image to flash on the screen on being hurt.

                public AudioClip deathClip;       // The audio clip to play when the player dies.

                public float flashSpeed = 5f;      // The speed the damageImage will fade at.

                public Color flashColour = new Color(1f, 0f, 0f, 0.1f);  // The colour the damageImage is set to, to flash.

                float healthTimer = 0.0f;

                bool healthPackShouldRespawn = false;

                public GameObject healthPack;

                Animator m_animator;               // Reference to the Animator component.

                AudioSource m_playerAudio;         // Reference to the AudioSource component.

                PlayerMovement m_playerMovement;    // Reference to the player's movement.

                PlayerShooting m_playerShooting;    // Reference to the PlayerShooting script.

                bool isDead;                         // Whether the player is dead.

                bool damaged;                       // True when the player gets damaged.

              

    void Awake ()

    {

                                // Setting up the references.

        m_animator = GetComponent <Animator> ();

        m_playerAudio = GetComponent <AudioSource> ();

        m_playerMovement = GetComponent <PlayerMovement> ();

        m_playerShooting = GetComponentInChildren <PlayerShooting> ();

       

                                // Set the initial health of the player.

                                currentHealth = startingHealth;

                                //InvokeRepeating ("PlayerHealthPack", 5,1);

    }

    void Update ()

    {

                                // If the player has just been damaged...

                                if (damaged)

                                {

                                                damageImage.color = flashColour;

                                }

                                // Otherwise...

                                else

                                {

                                                // ... transition the colour back to clear.

                                                damageImage.color = Color.Lerp (damageImage.color, Color.clear, flashSpeed * Time.deltaTime);

                                }

       

                                // Reset the damaged flag.

                                damaged = false;

                                if (healthPackShouldRespawn)

                                {

                                                healthTimer += Time.deltaTime;

                                                if (healthTimer > 20.0f)

                                                {

                                                                healthPack.gameObject.SetActive (true);

                                                                healthTimer = 0.0f;

                                                              

                                                }

                               

                                }

                }

               

    public void TakeDamage (int amount)

    {

                                // Set the damaged flag so the screen will flash.

                                damaged = true;

                                // Reduce the current health by the damage amount.

                                currentHealth -= amount;

                                // Set the health bar's value to the current health.

                                healthSlider.value = currentHealth;

                                // Play the hurt sound effect.

                                m_playerAudio.Play ();

                                // If the player has lost all it's health and the death flag hasn't been set yet...

                                if(currentHealth <= 0 && !isDead)

        {

            Death ();

        }

    }

                void OnTriggerEnter(Collider item)

                {

                                if(item.gameObject.tag == "PlayerHealthPack")

                                {

                                                if(currentHealth < 100)

                                                {

                                                                currentHealth = currentHealth + 10;

                                                                healthSlider.value = currentHealth;

                                                                item.gameObject.SetActive(false);

                                                                healthPackShouldRespawn = true;

                                                }

                                }

                }

               

    void Death ()

    {

                                // Set the death flag so this function won't be called again.

                                isDead = true;

                                // Turn off any remaining shooting effects.

                                m_playerShooting.DisableEffects ();

                                // Tell the animator that the player is dead.

                                m_animator.SetTrigger ("Die");

                                // Set the audiosource to play the death clip and play it (this will stop the hurt sound from playing).

                                m_playerAudio.clip = deathClip;

                                m_playerAudio.Play ();

                                // Turn off the movement and shooting scripts.

                                m_playerMovement.enabled = false;

                               m_playerShooting.enabled = false;

    }

               

    public void RestartLevel ()

    {

        Application.LoadLevel (Application.loadedLevel);

    }

}