using System.Collections;
using UnityEngine;
using UnityEngine.UI;
public class DamageIndicator : MonoBehaviour
{
    public Image image;
    public float flashSpeed;
    private Coroutine fadeAway;
    // called when the player takes damage - listening to the OnTakeDamage event
    public void Flash()
    {
        // stop all currently running FadeAway coroutines
        if (fadeAway != null)
            StopCoroutine(fadeAway);
        // reset the image and fade it away
        image.enabled = true;
        image.color = Color.white;
        fadeAway = StartCoroutine(FadeAway());
        // fades the image away over time
        IEnumerator FadeAway()
        {
            float a = 1.0f;
            while (a > 0.0f)
            {
                a -= (1.0f / flashSpeed) * Time.deltaTime;
                image.color = new Color(1.0f, 1.0f, 1.0f, a);
                yield return null;
            }
            image.enabled = false;
        }
    }
}