CreditsRollSky.cs

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using System.Collections.Generic;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using Terraria.GameContent.Animations;
using Terraria.GameContent.Skies.CreditsRoll;
using Terraria.Graphics.Effects;
 
namespace Terraria.GameContent.Skies;
 
public class CreditsRollSky : CustomSky
{
    private int _endTime;
 
    private int _currentTime;
 
    private CreditsRollComposer _composer = new CreditsRollComposer();
 
    private List<IAnimationSegment> _segmentsInGame = new List<IAnimationSegment>();
 
    private List<IAnimationSegment> _segmentsInMainMenu = new List<IAnimationSegment>();
 
    private bool _isActive;
 
    private bool _wantsToBeSeen;
 
    private float _opacity;
 
    public int AmountOfTimeNeededForFullPlay => _endTime;
 
    public CreditsRollSky()
    {
        EnsureSegmentsAreMade();
    }
 
    public override void Update(GameTime gameTime)
    {
        if (Main.gamePaused || !Main.hasFocus)
        {
            return;
        }
        _currentTime++;
        float num = 1f / 120f;
        if (Main.gameMenu)
        {
            num = 1f / 15f;
        }
        _opacity = MathHelper.Clamp(_opacity + num * (float)_wantsToBeSeen.ToDirectionInt(), 0f, 1f);
        if (_opacity == 0f && !_wantsToBeSeen)
        {
            _isActive = false;
            return;
        }
        bool flag = true;
        if (!Main.CanPlayCreditsRoll())
        {
            flag = false;
        }
        if (_currentTime >= _endTime)
        {
            flag = false;
        }
        if (!flag)
        {
            SkyManager.Instance.Deactivate("CreditsRoll");
        }
    }
 
    public override void Draw(SpriteBatch spriteBatch, float minDepth, float maxDepth)
    {
        float num = 1f;
        if (!(num < minDepth) && !(num > maxDepth))
        {
            Vector2 anchorPositionOnScreen = Main.ScreenSize.ToVector2() / 2f;
            if (Main.gameMenu)
            {
                anchorPositionOnScreen.Y = 300f;
            }
            GameAnimationSegment gameAnimationSegment = default(GameAnimationSegment);
            gameAnimationSegment.SpriteBatch = spriteBatch;
            gameAnimationSegment.AnchorPositionOnScreen = anchorPositionOnScreen;
            gameAnimationSegment.TimeInAnimation = _currentTime;
            gameAnimationSegment.DisplayOpacity = _opacity;
            GameAnimationSegment info = gameAnimationSegment;
            List<IAnimationSegment> list = _segmentsInGame;
            if (Main.gameMenu)
            {
                list = _segmentsInMainMenu;
            }
            for (int i = 0; i < list.Count; i++)
            {
                list[i].Draw(ref info);
            }
        }
    }
 
    public override bool IsActive()
    {
        return _isActive;
    }
 
    public override void Reset()
    {
        _currentTime = 0;
        EnsureSegmentsAreMade();
        _isActive = false;
        _wantsToBeSeen = false;
    }
 
    public override void Activate(Vector2 position, params object[] args)
    {
        _isActive = true;
        _wantsToBeSeen = true;
        if (_opacity == 0f)
        {
            EnsureSegmentsAreMade();
            _currentTime = 0;
        }
    }
 
    private void EnsureSegmentsAreMade()
    {
        if (_segmentsInMainMenu.Count <= 0 || _segmentsInGame.Count <= 0)
        {
            _segmentsInGame.Clear();
            _composer.FillSegments(_segmentsInGame, out _endTime, inGame: true);
            _segmentsInMainMenu.Clear();
            _composer.FillSegments(_segmentsInMainMenu, out _endTime, inGame: false);
        }
    }
 
    public override void Deactivate(params object[] args)
    {
        _wantsToBeSeen = false;
    }
}