CommonEnemyUICollectionInfoProvider.cs

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using Terraria.ID;
using Terraria.UI;
 
namespace Terraria.GameContent.Bestiary;
 
public class CommonEnemyUICollectionInfoProvider : IBestiaryUICollectionInfoProvider
{
    private string _persistentIdentifierToCheck;
 
    private bool _quickUnlock;
 
    private int _killCountNeededToFullyUnlock;
 
    public CommonEnemyUICollectionInfoProvider(string persistentId, bool quickUnlock)
    {
        _persistentIdentifierToCheck = persistentId;
        _quickUnlock = quickUnlock;
        _killCountNeededToFullyUnlock = GetKillCountNeeded(persistentId);
    }
 
    public static int GetKillCountNeeded(string persistentId)
    {
        int defaultKillsForBannerNeeded = ItemID.Sets.DefaultKillsForBannerNeeded;
        if (!ContentSamples.NpcNetIdsByPersistentIds.TryGetValue(persistentId, out var value))
        {
            return defaultKillsForBannerNeeded;
        }
        if (!ContentSamples.NpcsByNetId.TryGetValue(value, out var value2))
        {
            return defaultKillsForBannerNeeded;
        }
        int num = Item.BannerToItem(Item.NPCtoBanner(value2.BannerID()));
        return ItemID.Sets.KillsToBanner[num];
    }
 
    public BestiaryUICollectionInfo GetEntryUICollectionInfo()
    {
        int killCount = Main.BestiaryTracker.Kills.GetKillCount(_persistentIdentifierToCheck);
        BestiaryEntryUnlockState unlockStateByKillCount = GetUnlockStateByKillCount(killCount, _quickUnlock);
        BestiaryUICollectionInfo result = default(BestiaryUICollectionInfo);
        result.UnlockState = unlockStateByKillCount;
        return result;
    }
 
    public BestiaryEntryUnlockState GetUnlockStateByKillCount(int killCount, bool quickUnlock)
    {
        int killCountNeededToFullyUnlock = _killCountNeededToFullyUnlock;
        return GetUnlockStateByKillCount(killCount, quickUnlock, killCountNeededToFullyUnlock);
    }
 
    public static BestiaryEntryUnlockState GetUnlockStateByKillCount(int killCount, bool quickUnlock, int fullKillCountNeeded)
    {
        BestiaryEntryUnlockState bestiaryEntryUnlockState = BestiaryEntryUnlockState.NotKnownAtAll_0;
        int num = fullKillCountNeeded / 2;
        int num2 = fullKillCountNeeded / 5;
        if (quickUnlock && killCount > 0)
        {
            return BestiaryEntryUnlockState.CanShowDropsWithDropRates_4;
        }
        if (killCount >= fullKillCountNeeded)
        {
            return BestiaryEntryUnlockState.CanShowDropsWithDropRates_4;
        }
        if (killCount >= num)
        {
            return BestiaryEntryUnlockState.CanShowDropsWithoutDropRates_3;
        }
        if (killCount >= num2)
        {
            return BestiaryEntryUnlockState.CanShowStats_2;
        }
        if (killCount >= 1)
        {
            return BestiaryEntryUnlockState.CanShowPortraitOnly_1;
        }
        return BestiaryEntryUnlockState.NotKnownAtAll_0;
    }
 
    public UIElement ProvideUIElement(BestiaryUICollectionInfo info)
    {
        return null;
    }
}