MysticLogFairiesEvent.cs

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using System;
using System.Collections.Generic;
using Microsoft.Xna.Framework;
using Terraria.DataStructures;
using Terraria.Enums;
 
namespace Terraria.GameContent.Events;
 
public class MysticLogFairiesEvent
{
    private bool _canSpawnFairies;
 
    private int _delayUntilNextAttempt;
 
    private const int DELAY_BETWEEN_ATTEMPTS = 60;
 
    private List<Point> _stumpCoords = new List<Point>();
 
    public void WorldClear()
    {
        _canSpawnFairies = false;
        _delayUntilNextAttempt = 0;
        _stumpCoords.Clear();
    }
 
    public void StartWorld()
    {
        if (Main.netMode != 1)
        {
            ScanWholeOverworldForLogs();
        }
    }
 
    public void StartNight()
    {
        if (Main.netMode != 1)
        {
            _canSpawnFairies = true;
            _delayUntilNextAttempt = 0;
            ScanWholeOverworldForLogs();
        }
    }
 
    public void UpdateTime()
    {
        if (Main.netMode != 1 && _canSpawnFairies && IsAGoodTime())
        {
            _delayUntilNextAttempt = Math.Max(0, _delayUntilNextAttempt - Main.dayRate);
            if (_delayUntilNextAttempt == 0)
            {
                _delayUntilNextAttempt = 60;
                TrySpawningFairies();
            }
        }
    }
 
    private bool IsAGoodTime()
    {
        if (Main.dayTime)
        {
            return false;
        }
        if (!Main.remixWorld)
        {
            if (Main.time < 6480.0000965595245)
            {
                return false;
            }
            if (Main.time > 25920.000386238098)
            {
                return false;
            }
        }
        return true;
    }
 
    private void TrySpawningFairies()
    {
        if (Main.maxRaining > 0f || Main.bloodMoon || NPC.MoonLordCountdown > 0 || Main.snowMoon || Main.pumpkinMoon || Main.invasionType > 0 || _stumpCoords.Count == 0)
        {
            return;
        }
        int oneOverSpawnChance = GetOneOverSpawnChance();
        bool flag = false;
        for (int i = 0; i < Main.dayRate; i++)
        {
            if (Main.rand.Next(oneOverSpawnChance) == 0)
            {
                flag = true;
                break;
            }
        }
        if (!flag)
        {
            return;
        }
        int index = Main.rand.Next(_stumpCoords.Count);
        Point p = _stumpCoords[index];
        Vector2 vector = p.ToWorldCoordinates(24f);
        vector.Y -= 50f;
        if (WorldGen.PlayerLOS(p.X, p.Y))
        {
            return;
        }
        int num = Main.rand.Next(1, 4);
        if (Main.rand.Next(7) == 0)
        {
            num++;
        }
        int num2 = Utils.SelectRandom(Main.rand, new short[3] { 585, 584, 583 });
        for (int j = 0; j < num; j++)
        {
            num2 = Utils.SelectRandom(Main.rand, new short[3] { 585, 584, 583 });
            if (Main.tenthAnniversaryWorld && Main.rand.Next(4) != 0)
            {
                num2 = 583;
            }
            int num3 = NPC.NewNPC(new EntitySource_WorldEvent(), (int)vector.X, (int)vector.Y, num2);
            if (Main.netMode == 2 && num3 < 200)
            {
                NetMessage.SendData(23, -1, -1, null, num3);
            }
        }
        _canSpawnFairies = false;
    }
 
    public void FallenLogDestroyed()
    {
        if (Main.netMode != 1)
        {
            ScanWholeOverworldForLogs();
        }
    }
 
    private void ScanWholeOverworldForLogs()
    {
        _stumpCoords.Clear();
        NPC.fairyLog = false;
        int num = (int)Main.worldSurface - 10;
        int num2 = 100;
        int num3 = Main.maxTilesX - 100;
        if (Main.remixWorld)
        {
            num = Main.maxTilesY - 350;
            num2 = (int)Main.rockLayer;
        }
        int num4 = 3;
        int num5 = 2;
        List<Point> list = new List<Point>();
        for (int i = 100; i < num3; i += num4)
        {
            for (int num6 = num; num6 >= num2; num6 -= num5)
            {
                Tile tile = Main.tile[i, num6];
                if (tile.active() && tile.type == 488 && tile.liquid == 0)
                {
                    list.Add(new Point(i, num6));
                    NPC.fairyLog = true;
                }
            }
        }
        foreach (Point item in list)
        {
            _stumpCoords.Add(GetStumpTopLeft(item));
        }
    }
 
    private Point GetStumpTopLeft(Point stumpRandomPoint)
    {
        Tile tile = Main.tile[stumpRandomPoint.X, stumpRandomPoint.Y];
        Point result = stumpRandomPoint;
        result.X -= tile.frameX / 18;
        result.Y -= tile.frameY / 18;
        return result;
    }
 
    private int GetOneOverSpawnChance()
    {
        int num = 1;
        MoonPhase moonPhase = Main.GetMoonPhase();
        num = ((moonPhase != 0 && moonPhase != MoonPhase.Empty) ? 10800 : 3600);
        return num / 60;
    }
}