MartianSaucerBigProgressBar.cs

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using System.Collections.Generic;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using Terraria.ID;
 
namespace Terraria.GameContent.UI.BigProgressBar;
 
public class MartianSaucerBigProgressBar : IBigProgressBar
{
    private BigProgressBarCache _cache;
 
    private NPC _referenceDummy;
 
    private HashSet<int> ValidIds = new HashSet<int> { 395 };
 
    private HashSet<int> ValidIdsToScanHp = new HashSet<int> { 395, 393, 394 };
 
    public MartianSaucerBigProgressBar()
    {
        _referenceDummy = new NPC();
    }
 
    public bool ValidateAndCollectNecessaryInfo(ref BigProgressBarInfo info)
    {
        if (info.npcIndexToAimAt < 0 || info.npcIndexToAimAt > 200)
        {
            return false;
        }
        NPC nPC = Main.npc[info.npcIndexToAimAt];
        if (!nPC.active || nPC.type != 395)
        {
            if (!TryFindingAnotherMartianSaucerPiece(ref info))
            {
                return false;
            }
            nPC = Main.npc[info.npcIndexToAimAt];
        }
        int num = 0;
        if (Main.expertMode)
        {
            _referenceDummy.SetDefaults(395, nPC.GetMatchingSpawnParams());
            num += _referenceDummy.lifeMax;
        }
        _referenceDummy.SetDefaults(394, nPC.GetMatchingSpawnParams());
        num += _referenceDummy.lifeMax * 2;
        _referenceDummy.SetDefaults(393, nPC.GetMatchingSpawnParams());
        num += _referenceDummy.lifeMax * 2;
        float num2 = 0f;
        for (int i = 0; i < 200; i++)
        {
            NPC nPC2 = Main.npc[i];
            if (nPC2.active && ValidIdsToScanHp.Contains(nPC2.type) && (Main.expertMode || nPC2.type != 395))
            {
                num2 += (float)nPC2.life;
            }
        }
        _cache.SetLife(num2, num);
        return true;
    }
 
    public void Draw(ref BigProgressBarInfo info, SpriteBatch spriteBatch)
    {
        int num = NPCID.Sets.BossHeadTextures[395];
        Texture2D value = TextureAssets.NpcHeadBoss[num].Value;
        Rectangle barIconFrame = value.Frame();
        BigProgressBarHelper.DrawFancyBar(spriteBatch, _cache.LifeCurrent, _cache.LifeMax, value, barIconFrame);
    }
 
    private bool TryFindingAnotherMartianSaucerPiece(ref BigProgressBarInfo info)
    {
        for (int i = 0; i < 200; i++)
        {
            NPC nPC = Main.npc[i];
            if (nPC.active && ValidIds.Contains(nPC.type))
            {
                info.npcIndexToAimAt = i;
                return true;
            }
        }
        return false;
    }
}