TileDrawSorter.cs

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using System;
using System.Collections.Generic;
 
namespace Terraria.DataStructures;
 
public class TileDrawSorter
{
    public struct TileTexPoint
    {
        public int X;
 
        public int Y;
 
        public int TileType;
 
        public override string ToString()
        {
            return $"X:{X}, Y:{Y}, Type:{TileType}";
        }
    }
 
    public class CustomComparer : Comparer<TileTexPoint>
    {
        public override int Compare(TileTexPoint x, TileTexPoint y)
        {
            return x.TileType.CompareTo(y.TileType);
        }
    }
 
    public TileTexPoint[] tilesToDraw;
 
    private int _holderLength;
 
    private int _currentCacheIndex;
 
    private CustomComparer _tileComparer = new CustomComparer();
 
    public TileDrawSorter()
    {
        _currentCacheIndex = 0;
        _holderLength = 9000;
        tilesToDraw = new TileTexPoint[_holderLength];
    }
 
    public void reset()
    {
        _currentCacheIndex = 0;
    }
 
    public void Cache(int x, int y, int type)
    {
        int num = _currentCacheIndex++;
        tilesToDraw[num].X = x;
        tilesToDraw[num].Y = y;
        tilesToDraw[num].TileType = type;
        if (_currentCacheIndex == _holderLength)
        {
            IncreaseArraySize();
        }
    }
 
    private void IncreaseArraySize()
    {
        _holderLength *= 2;
        Array.Resize(ref tilesToDraw, _holderLength);
    }
 
    public void Sort()
    {
        Array.Sort(tilesToDraw, 0, _currentCacheIndex, _tileComparer);
    }
 
    public int GetAmountToDraw()
    {
        return _currentCacheIndex;
    }
}