SkyManager.cs

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using System.Collections.Generic;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
 
namespace Terraria.Graphics.Effects;
 
public class SkyManager : EffectManager<CustomSky>
{
    public static SkyManager Instance = new SkyManager();
 
    private float _lastDepth;
 
    private LinkedList<CustomSky> _activeSkies = new LinkedList<CustomSky>();
 
    public void Reset()
    {
        foreach (CustomSky value in _effects.Values)
        {
            value.Reset();
        }
        _activeSkies.Clear();
    }
 
    public void Update(GameTime gameTime)
    {
        int num = Main.dayRate;
        if (num < 1)
        {
            num = 1;
        }
        for (int i = 0; i < num; i++)
        {
            LinkedListNode<CustomSky> linkedListNode = _activeSkies.First;
            while (linkedListNode != null)
            {
                CustomSky value = linkedListNode.Value;
                LinkedListNode<CustomSky> next = linkedListNode.Next;
                value.Update(gameTime);
                if (!value.IsActive())
                {
                    _activeSkies.Remove(linkedListNode);
                }
                linkedListNode = next;
            }
        }
    }
 
    public void Draw(SpriteBatch spriteBatch)
    {
        DrawDepthRange(spriteBatch, float.MinValue, float.MaxValue);
    }
 
    public void DrawToDepth(SpriteBatch spriteBatch, float minDepth)
    {
        if (!(_lastDepth <= minDepth))
        {
            DrawDepthRange(spriteBatch, minDepth, _lastDepth);
            _lastDepth = minDepth;
        }
    }
 
    public void DrawDepthRange(SpriteBatch spriteBatch, float minDepth, float maxDepth)
    {
        foreach (CustomSky activeSky in _activeSkies)
        {
            activeSky.Draw(spriteBatch, minDepth, maxDepth);
        }
    }
 
    public void DrawRemainingDepth(SpriteBatch spriteBatch)
    {
        DrawDepthRange(spriteBatch, float.MinValue, _lastDepth);
        _lastDepth = float.MinValue;
    }
 
    public void ResetDepthTracker()
    {
        _lastDepth = float.MaxValue;
    }
 
    public void SetStartingDepth(float depth)
    {
        _lastDepth = depth;
    }
 
    public override void OnActivate(CustomSky effect, Vector2 position)
    {
        _activeSkies.Remove(effect);
        _activeSkies.AddLast(effect);
    }
 
    public Color ProcessTileColor(Color color)
    {
        foreach (CustomSky activeSky in _activeSkies)
        {
            color = activeSky.OnTileColor(color);
        }
        return color;
    }
 
    public float ProcessCloudAlpha()
    {
        float num = 1f;
        foreach (CustomSky activeSky in _activeSkies)
        {
            num *= activeSky.GetCloudAlpha();
        }
        return MathHelper.Clamp(num, 0f, 1f);
    }
}