cirnogodot/Scripts/AttackPatterns/SpiralPattern.cs

using System.Collections.Generic;
using System.Linq;
using Cirno.Scripts.Actors;
using Cirno.Scripts.Components;
using Cirno.Scripts.Resources;
using Godot;
using Godot.Collections;
using Array = System.Array;

namespace Cirno.Scripts.AttackPatterns;

[GlobalClass]
public partial class SpiralPattern : AttackPattern
{
    [Export] public PackedScene BulletScene;
    [Export] private float bulletSpeed = 5f;
    [Export] private int bulletCount = 16;
    [Export] private float rotationSpeed = 0f;
    [Export] private float _rotationOffset = 0f;
    [Export] private float duration = 5f;
    [Export] private float burstInterval = 0.5f;
    [Export] private float spread = 360f;
    [Export] private BulletOwner owner = BulletOwner.Enemy;
    [Export] private DamageType _damageType = DamageType.Neutral;
    [Export] private float _bulletDamage = 1f;
    [ExportGroup("Modifiers")]
    [Export] private BulletCreationModifier _modifier;
    [ExportGroup("Modifiers")]
    [Export] private Array<TimeModifier> _timeModifiers;

    [Export] private bool _targetPlayer = false;
    
    private double timer;
    private double burstTimer;
    private BulletSpawner spawner;
    
    public override void Start(Boss boss)
    {
        Boss = boss;
        timer = 0;
        burstTimer = burstInterval; // start immediately
        spawner = boss.GetNode<BulletSpawner>("BulletSpawner");
    }

    public override void UpdatePattern(double delta)
    {
        timer += delta;
        burstTimer += delta;
        if (timer < duration && burstTimer >= burstInterval)
        {
            float angleOffset = _rotationOffset + (float)(rotationSpeed * timer);

            Vector2 direction = Vector2.Right;
            
            if (_targetPlayer && Boss.GameManager.PlayerPosition.HasValue)
            {
                direction = (Boss.GameManager.PlayerPosition.Value - Boss.GlobalPosition).Normalized();
            }
            
            spawner.SpawnBullet(MakeBullet(Boss.GlobalPosition, direction, angleOffset));
            
            // spawner.SpawnBullet(new BulletInfo()
            // {
            //     Position = Boss.GlobalPosition,
            //     Direction = direction,
            //     Speed = bulletSpeed,
            //     Owner = owner,
            //     DamageType = _damageType,
            //     Damage = _bulletDamage,
            //     BulletCount = bulletCount,
            //     Spread = spread,
            //     BulletScene = BulletScene,
            //     RotationOffset = angleOffset,
            //     Modifier = _modifier,
            //     TimeModifiers = ((_timeModifiers?.Where(mod => mod != null)) ?? Array.Empty<TimeModifier>()).Select(m => new ModifierWrapper()
            //     {
            //         TimeModifier = m,
            //         Applied = false
            //     }).ToList()
            // });
            
            burstTimer = 0;
        }
    }

    protected virtual BulletInfo MakeBullet(Vector2 position, Vector2 direction, float angleOffset)
    {
        return new BulletInfo()
        {
            Position = position,
            Direction = direction,
            Speed = bulletSpeed,
            Owner = owner,
            DamageType = _damageType,
            Damage = _bulletDamage,
            BulletCount = bulletCount,
            Spread = spread,
            BulletScene = BulletScene,
            RotationOffset = angleOffset,
            Modifier = _modifier,
            TimeModifiers = ((_timeModifiers?.Where(mod => mod != null)) ?? Array.Empty<TimeModifier>()).Select(m =>
                new ModifierWrapper()
                {
                    TimeModifier = m,
                    Applied = false
                }).ToList()
        };
    }

    public override bool IsComplete()
    {
        return timer >= duration;
    }
}