ForgottenWawiTech/Content/Players/ProtogenOperativePlayer.cs

using Microsoft.Xna.Framework;
using Terraria;
using Terraria.ModLoader;
using ForgottenWawiTech.Content.Projectiles.Protogen;

namespace ForgottenWawiTech.Content.Players
{
    public class ProtogenOperativePlayer : ModPlayer
    {
        private const int NaniteProjectileCount = 3;
        private const int NaniteCooldownTicks = 90;
        private const int NaniteBaseDamage = 90;
        private const float NaniteSpawnRadius = 30f;

        private int naniteCooldownTimer;

        public bool NaniteSwarmActive { get; private set; }

        public override void ResetEffects()
        {
            NaniteSwarmActive = false;
        }

        public override void UpdateDead()
        {
            NaniteSwarmActive = false;
            naniteCooldownTimer = 0;
        }

        public override void PostUpdate()
        {
            if (naniteCooldownTimer > 0)
            {
                naniteCooldownTimer--;
            }
        }

        public void EnableNaniteSwarm()
        {
            NaniteSwarmActive = true;
        }

        public override void OnHurt(Player.HurtInfo info)
        {
            if (!NaniteSwarmActive || info.Damage <= 0 || naniteCooldownTimer > 0 || Player.whoAmI != Main.myPlayer)
            {
                return;
            }

            naniteCooldownTimer = NaniteCooldownTicks;
            var source = Player.GetSource_Misc("ProtogenOperativeNanites");
            int damage = (int)Player.GetTotalDamage(DamageClass.Generic).ApplyTo(NaniteBaseDamage);

            for (int i = 0; i < NaniteProjectileCount; i++)
            {
                float angle = MathHelper.TwoPi * i / NaniteProjectileCount;
                Vector2 spawnOffset = angle.ToRotationVector2() * NaniteSpawnRadius;
                Vector2 spawnVelocity = spawnOffset.SafeNormalize(Vector2.UnitY) * 6f + Player.velocity;

                Projectile.NewProjectile(
                    source,
                    Player.Center + spawnOffset,
                    spawnVelocity,
                    ModContent.ProjectileType<ProtogenOperativeNanite>(),
                    damage,
                    2f,
                    Player.whoAmI);
            }
        }
    }
}