MoonLordSky.cs

Go to the documentation of this file.

using System;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using Terraria.Graphics.Effects;
using Terraria.Utilities;
 
namespace Terraria.GameContent.Skies;
 
public class MoonLordSky : CustomSky
{
    private UnifiedRandom _random = new UnifiedRandom();
 
    private bool _isActive;
 
    private int _moonLordIndex = -1;
 
    private bool _forPlayer;
 
    private float _fadeOpacity;
 
    public MoonLordSky(bool forPlayer)
    {
        _forPlayer = forPlayer;
    }
 
    public override void OnLoad()
    {
    }
 
    public override void Update(GameTime gameTime)
    {
        if (_forPlayer)
        {
            if (_isActive)
            {
                _fadeOpacity = Math.Min(1f, 0.01f + _fadeOpacity);
            }
            else
            {
                _fadeOpacity = Math.Max(0f, _fadeOpacity - 0.01f);
            }
        }
    }
 
    private float GetIntensity()
    {
        if (_forPlayer)
        {
            return _fadeOpacity;
        }
        if (UpdateMoonLordIndex())
        {
            float x = 0f;
            if (_moonLordIndex != -1)
            {
                x = Vector2.Distance(Main.player[Main.myPlayer].Center, Main.npc[_moonLordIndex].Center);
            }
            return 1f - Utils.SmoothStep(3000f, 6000f, x);
        }
        return 0f;
    }
 
    public override Color OnTileColor(Color inColor)
    {
        float intensity = GetIntensity();
        return new Color(Vector4.Lerp(new Vector4(0.5f, 0.8f, 1f, 1f), inColor.ToVector4(), 1f - intensity));
    }
 
    private bool UpdateMoonLordIndex()
    {
        if (_moonLordIndex >= 0 && Main.npc[_moonLordIndex].active && Main.npc[_moonLordIndex].type == 398)
        {
            return true;
        }
        int num = -1;
        for (int i = 0; i < Main.npc.Length; i++)
        {
            if (Main.npc[i].active && Main.npc[i].type == 398)
            {
                num = i;
                break;
            }
        }
        _moonLordIndex = num;
        return num != -1;
    }
 
    public override void Draw(SpriteBatch spriteBatch, float minDepth, float maxDepth)
    {
        if (maxDepth >= 0f && minDepth < 0f)
        {
            float intensity = GetIntensity();
            spriteBatch.Draw(TextureAssets.BlackTile.Value, new Rectangle(0, 0, Main.screenWidth, Main.screenHeight), Color.Black * intensity);
        }
    }
 
    public override float GetCloudAlpha()
    {
        return 1f - _fadeOpacity;
    }
 
    public override void Activate(Vector2 position, params object[] args)
    {
        _isActive = true;
        if (_forPlayer)
        {
            _fadeOpacity = 0.002f;
        }
        else
        {
            _fadeOpacity = 1f;
        }
    }
 
    public override void Deactivate(params object[] args)
    {
        _isActive = false;
        if (!_forPlayer)
        {
            _fadeOpacity = 0f;
        }
    }
 
    public override void Reset()
    {
        _isActive = false;
        _fadeOpacity = 0f;
    }
 
    public override bool IsActive()
    {
        if (!_isActive)
        {
            return _fadeOpacity > 0.001f;
        }
        return true;
    }
}