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

/*
--------------------------------------
    Project: Programing assessment
    Standard: 91906 (AS3.7) v.1
    School: Tauranga Boys' College
    Author: Rauputu Noah Phizacklea
    Date: August 2024
    Unity: 2021.3.18f
---------------------------------------
*/

public class HitFlash : MonoBehaviour
{
    [SerializeField] private Material flashMaterial; // Material used for the flash effect
    [SerializeField] private float flashDuration; // Duration of the flash effect

    private SpriteRenderer spriteRenderer; // SpriteRenderer to apply the flash effect
    private Material originalMaterial; // Original material of the SpriteRenderer
    private Coroutine flashRoutine; // Reference to the currently running flash routine

    void Start()
    {
        spriteRenderer = GetComponent<SpriteRenderer>(); // Get the SpriteRenderer component
        originalMaterial = spriteRenderer.material; // Save the original material
    }

    public void Flash()
    {
        if (flashRoutine != null) // If a flash is already in progress
        {
            StopCoroutine(flashRoutine); // Stop the existing flash
        }

        flashRoutine = StartCoroutine(FlashRoutine()); // Start a new flash routine
    }

    private IEnumerator FlashRoutine()
    {
        spriteRenderer.material = flashMaterial; // Change to the flash material

        yield return new WaitForSeconds(flashDuration); // Wait for the flash duration

        spriteRenderer.material = originalMaterial; // Restore the original material
        flashRoutine = null; // Clear the flash routine reference
    }
}