RiftMayhem/Assets/Scripts/UI/AbilityBindInstance.cs

using System.Collections;
using System.Collections.Generic;
using TMPro;
using UnityEngine;
using UnityEngine.UI;

public class AbilityBindInstance : MonoBehaviour
{
    public GameKey gameKey;

    [SerializeField] private GameEventListener_AbilityKeyBinder onAbilityKeyBinderSpawned;
    public TMP_Text bind;
    public TMP_Text manaCost;
    public Image icon;
    public GameObject noMana;
    public GameObject pressed;
    public Image coolDown;

    [Header("Set by Code:")]
    public AbilityKeyBinder abilityKeyBinder;

    private void Awake()
    {
        onAbilityKeyBinderSpawned.Response.AddListener(InitializeAbilityBindInstance);
    }

    public void InitializeAbilityBindInstance(AbilityKeyBinder abilityKeyBinder)
    {
        if (abilityKeyBinder.GameKey != gameKey) return;

        this.abilityKeyBinder = abilityKeyBinder;
        string keyName = gameKey.keyCode.ToString();
        //alpha
        keyName = keyName.Remove(0, 5);
        this.bind.text = keyName;
        this.manaCost.text = abilityKeyBinder.Ability.manaCost.ToString();
        this.icon.sprite = abilityKeyBinder.Ability.Icon;
        noMana.SetActive(false);
        pressed.SetActive(false);
        coolDown.fillAmount = 1;
        coolDown.gameObject.SetActive(false);

        abilityKeyBinder.SetupAbilityBindInstance(this);
    }

    public void StartCooldownTrackerUI()
    {
        StartCoroutine(UIAbilityCooldownTracking());
    }

    float cooldownTime;
    float elapsedTime;
    IEnumerator UIAbilityCooldownTracking()
    {
        cooldownTime = abilityKeyBinder.Ability.cooldown;
        elapsedTime = 0f;

        coolDown.fillAmount = 1f;
        coolDown.gameObject.SetActive(true);

        while (elapsedTime < cooldownTime)
        {
            elapsedTime += Time.deltaTime;
            coolDown.fillAmount = 1f - (elapsedTime / cooldownTime);
            yield return null;
        }

        coolDown.fillAmount = 0f;
        coolDown.gameObject.SetActive(false);
    }
}