DesertDescription.cs

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using Microsoft.Xna.Framework;
using ReLogic.Utilities;
using Terraria.WorldBuilding;
 
namespace Terraria.GameContent.Biomes.Desert;
 
public class DesertDescription
{
    public static readonly DesertDescription Invalid = new DesertDescription
    {
        IsValid = false
    };
 
    private static readonly Vector2D DefaultBlockScale = new Vector2D(4.0, 2.0);
 
    private const int SCAN_PADDING = 5;
 
    public Rectangle CombinedArea { get; private set; }
 
    public Rectangle Desert { get; private set; }
 
    public Rectangle Hive { get; private set; }
 
    public Vector2D BlockScale { get; private set; }
 
    public int BlockColumnCount { get; private set; }
 
    public int BlockRowCount { get; private set; }
 
    public bool IsValid { get; private set; }
 
    public SurfaceMap Surface { get; private set; }
 
    private DesertDescription()
    {
    }
 
    public void UpdateSurfaceMap()
    {
        Surface = SurfaceMap.FromArea(CombinedArea.Left - 5, CombinedArea.Width + 10);
    }
 
    public static DesertDescription CreateFromPlacement(Point origin)
    {
        //IL_0000: Unknown result type (might be due to invalid IL or missing references)
        //IL_0005: Unknown result type (might be due to invalid IL or missing references)
        //IL_0064: Unknown result type (might be due to invalid IL or missing references)
        //IL_0070: Unknown result type (might be due to invalid IL or missing references)
        //IL_016e: Unknown result type (might be due to invalid IL or missing references)
        Vector2D defaultBlockScale = DefaultBlockScale;
        double num = (double)Main.maxTilesX / 4200.0;
        int num2 = (int)(80.0 * num);
        int num3 = (int)((WorldGen.genRand.NextDouble() * 0.5 + 1.5) * 170.0 * num);
        if (WorldGen.remixWorldGen)
        {
            num3 = (int)(340.0 * num);
        }
        int num4 = (int)(defaultBlockScale.X * (double)num2);
        int num5 = (int)(defaultBlockScale.Y * (double)num3);
        origin.X -= num4 / 2;
        SurfaceMap surfaceMap = SurfaceMap.FromArea(origin.X - 5, num4 + 10);
        if (RowHasInvalidTiles(origin.X, surfaceMap.Bottom, num4))
        {
            return Invalid;
        }
        int num6 = (int)(surfaceMap.Average + (double)surfaceMap.Bottom) / 2;
        origin.Y = num6 + WorldGen.genRand.Next(40, 60);
        int num7 = 0;
        if (Main.tenthAnniversaryWorld)
        {
            num7 = (int)(20.0 * num);
        }
        return new DesertDescription
        {
            CombinedArea = new Rectangle(origin.X, num6, num4, origin.Y + num5 - num6),
            Hive = new Rectangle(origin.X, origin.Y + num7, num4, num5 - num7),
            Desert = new Rectangle(origin.X, num6, num4, origin.Y + num5 / 2 - num6 + num7),
            BlockScale = defaultBlockScale,
            BlockColumnCount = num2,
            BlockRowCount = num3,
            Surface = surfaceMap,
            IsValid = true
        };
    }
 
    private static bool RowHasInvalidTiles(int startX, int startY, int width)
    {
        if (GenVars.skipDesertTileCheck)
        {
            return false;
        }
        for (int i = startX; i < startX + width; i++)
        {
            switch (Main.tile[i, startY].type)
            {
            case 59:
            case 60:
                return true;
            case 147:
            case 161:
                return true;
            }
        }
        return false;
    }
}