CapersProject/Assets/02.Scripts/Skill/Enemy/Boss/Rhinoceros/MeteorSwing.cs

using System;
using System.Collections;
using BlueWater.Interfaces;
using BlueWater.Utility;
using Sirenix.OdinInspector;
using UnityEngine;
using UnityEngine.Rendering.Universal;

namespace BlueWater.Enemies.Bosses.Rhinoceros.Skills
{
    public class MeteorSwing : BaseSkill
    {
        [Title("추가 옵션")]
        [SerializeField]
        private bool _isDrawingGizmo = true;

        private MeteorSwingData _meteorSwingData;
        private Rhinoceros _rhinoceros;
        private AnimationController _animationController;
        private Collider _targetCollider;
        private Transform _particleInstantiateLocation;
        
        private static readonly int _angleHash = Shader.PropertyToID("_Angle");

        private void OnDrawGizmos()
        {
            if (!_isDrawingGizmo || !IsUsingSkill) return;
            
            var startPosition = SkillUser.transform.position;
            var targetDirection = transform.forward;
            var leftBoundary = Quaternion.Euler(0, -_meteorSwingData.AttackAngle / 2, 0) * targetDirection;
            var rightBoundary = Quaternion.Euler(0, _meteorSwingData.AttackAngle / 2, 0) * targetDirection;

            Gizmos.color = Color.red;
            Gizmos.DrawWireSphere(startPosition, SkillData.Radius);
            Gizmos.color = Color.yellow;
            Gizmos.DrawLine(startPosition, startPosition + leftBoundary * SkillData.Radius);
            Gizmos.DrawLine(startPosition, startPosition + rightBoundary * SkillData.Radius);
        }
        
        protected override void BasicSetting()
        {
            if (!_rhinoceros)
            {
                _rhinoceros = SkillUser.GetComponent<Rhinoceros>();
                _animationController = _rhinoceros.AnimationController;
                _targetCollider = _rhinoceros.Target;
                _particleInstantiateLocation = _rhinoceros.BossMapController.ParticleInstanceLocation;
            }
            _meteorSwingData = (MeteorSwingData)SkillData;
            HitColliders = new Collider[4];
            
            if (IsUsingIndicator && Indicator)
            {
                Indicator.scaleMode = DecalScaleMode.InheritFromHierarchy;
                Indicator.material = new Material(Indicator.material);
                Indicator.material.SetFloat(_fillHash, 0f);
                Indicator.material.SetFloat(_angleHash, _meteorSwingData.AttackAngle);
            }
        }
        
        public override void ActivateSkill(params Action[] actions)
        {
            Utils.StartUniqueCoroutine(this, ref SkillCoroutineInstance, SkillCoroutine(actions));
        }

        private IEnumerator SkillCoroutine(params Action[] actions)
        {
            EnableSkill = false;
            _rhinoceros.StopMove();
            _animationController.SetAnimationParameter("skillIndex", (int)RhinocerosSkill.MeteorSwing);
            
            var animationStarted = false;
            yield return StartCoroutine(_animationController.WaitForAnimationToRun("MeteorSwing",
                success => animationStarted = success));

            if (!animationStarted)
            {
                EndSkill(0, actions[0]);
                yield break;
            }

            IsUsingSkill = true;
            var startPosition = SkillUser.transform.position;
            var targetPosition = _targetCollider.transform.position;
            var targetVector = targetPosition - startPosition;
            targetVector.y = 0f;
            var targetDirection = targetVector.normalized;
            transform.position = startPosition + Vector3.up * SkillData.Radius;
            var yAngle = Mathf.Atan2(targetDirection.x, targetDirection.z) * Mathf.Rad2Deg;
            transform.rotation = Quaternion.Euler(0, yAngle, 0);
            transform.localScale = Vector3.one * (SkillData.Radius * 2f);

            _rhinoceros.CurrentDirection = targetDirection;
            ShowIndicator();

            var elapsedTime = 0f;
            var fill = 1 / SkillData.CastingTime;
            while (elapsedTime <= SkillData.CastingTime)
            {
                elapsedTime += Time.deltaTime;
                
                if (IsUsingIndicator && Indicator)
                {
                    var fillValue = Indicator.material.GetFloat(_fillHash) + Time.deltaTime * fill;
                    Indicator.material.SetFloat(_fillHash, fillValue);
                }

                yield return null;
            }

            var hitCount = Physics.OverlapSphereNonAlloc(transform.position, SkillData.Radius, HitColliders, 
                _meteorSwingData.TargetLayer, QueryTriggerInteraction.Collide);
            for (var i = 0; i < hitCount; i++)
            {
                var hitCollider = HitColliders[i];
                var hitVector = hitCollider.transform.position - SkillUser.transform.position;
                hitVector.y = 0f;
                var attackDirection = hitVector.normalized;
                var targetAngle = Vector3.Angle(attackDirection, targetDirection);

                if (targetAngle > _meteorSwingData.AttackAngle * 0.5f) continue;
                
                var iDamageable = hitCollider.GetComponentInParent<IDamageable>();
                if (iDamageable == null || !iDamageable.CanDamage()) continue;
                
                iDamageable.TakeDamage(SkillData.Damage);
                    
                var iStunnable = hitCollider.transform.GetComponentInParent<IStunnable>();
                iStunnable?.TryStun(_meteorSwingData.StunDuration);
                
                var iPhysicMovable = hitCollider.GetComponentInParent<IPhysicMovable>();
                iPhysicMovable?.SetPush(attackDirection, _meteorSwingData.PushPower);
            }
            
            HideIndicator();
            
            var startAngle = yAngle - _meteorSwingData.ProjectileAngle * 0.5f;
            var angleStep = _meteorSwingData.ProjectileAngle / (_meteorSwingData.ProjectileCount - 1);
            for (var i = 0; i < _meteorSwingData.ProjectileCount; i++)
            {
                var currentAngle = startAngle + angleStep * i;
                var rotation = Quaternion.Euler(0, currentAngle, 0);
                var projectile = Instantiate(_meteorSwingData.ProjectilePrefab,
                    startPosition + Vector3.up, rotation, _particleInstantiateLocation).GetComponent<ProjectileController>();
                projectile.Initialize(_meteorSwingData.ProjectileDamage, _meteorSwingData.TargetLayer);
                projectile.AddForce(projectile.transform.forward * _meteorSwingData.ProjectileSpeed, ForceMode.Impulse);
            }
            
            EndSkill(SkillData.Cooldown, actions[0]);
        }
        
        private void EndSkill(float cooldown, Action action)
        {
            Utils.EndUniqueCoroutine(this, ref SkillCoroutineInstance);
            
            _animationController.SetAnimationParameter("skillIndex", (int)RhinocerosSkill.None);
            action?.Invoke();
            IsUsingSkill = false;
            
            Utils.StartUniqueCoroutine(this, ref CooldownCoroutineInstance,Utils.CoolDownCoroutine(cooldown, EndCooldown));
        }
    }
}