NPCAimedTarget.cs

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using Microsoft.Xna.Framework;
using Terraria.Enums;
 
namespace Terraria.DataStructures;
 
public struct NPCAimedTarget
{
    public NPCTargetType Type;
 
    public Rectangle Hitbox;
 
    public int Width;
 
    public int Height;
 
    public Vector2 Position;
 
    public Vector2 Velocity;
 
    public bool Invalid => Type == NPCTargetType.None;
 
    public Vector2 Center => Position + Size / 2f;
 
    public Vector2 Size => new Vector2(Width, Height);
 
    public NPCAimedTarget(NPC npc)
    {
        Type = NPCTargetType.NPC;
        Hitbox = npc.Hitbox;
        Width = npc.width;
        Height = npc.height;
        Position = npc.position;
        Velocity = npc.velocity;
    }
 
    public NPCAimedTarget(Player player, bool ignoreTank = true)
    {
        Type = NPCTargetType.Player;
        Hitbox = player.Hitbox;
        Width = player.width;
        Height = player.height;
        Position = player.position;
        Velocity = player.velocity;
        if (!ignoreTank && player.tankPet > -1)
        {
            Projectile projectile = Main.projectile[player.tankPet];
            Type = NPCTargetType.PlayerTankPet;
            Hitbox = projectile.Hitbox;
            Width = projectile.width;
            Height = projectile.height;
            Position = projectile.position;
            Velocity = projectile.velocity;
        }
    }
}