namespace VoxelEngine.Core;

public sealed class Configuration
{
    public int RenderDistanceHorizontal { get; set; } = 8;
    public int RenderDistanceVertical { get; set; } = 2;
    public int SpawnReadyRadiusHorizontal { get; set; } = 1;

    public int MaxGenerateJobsInFlight { get; set; } = 8;
    public int MaxMeshUploadsPerFrame { get; set; } = 4;
    public int WorkerThreadCount { get; set; } = Math.Max(1, Environment.ProcessorCount / 2);

    // Multiplier applied to (dy)^2 in chunk-load priority. >1 prioritizes
    // chunks at the player's Y over equally-distant chunks above/below, so the
    // visible surface fills in before far-underground / overhead chunks.
    public int VerticalPriorityWeight { get; set; } = 4;

    public float MoveSpeed { get; set; } = 8f;
    public float MouseSensitivity { get; set; } = 0.15f;
    public float Fov { get; set; } = 60f;

    public int WindowWidth { get; set; } = 1280;
    public int WindowHeight { get; set; } = 720;

    public int? Seed { get; set; } = null;

    // -- Cave generation tuning --
    public float CaveNoiseFrequency           { get; set; } = 0.03f;
    public float CaveNoiseThreshold           { get; set; } = -0.3f;
    public int   WormCellSize                 { get; set; } = 64;
    public int   WormSpawnProbabilityPermille { get; set; } = 300;
    public int   WormMaxLength                { get; set; } = 80;
    public float WormMinRadius                { get; set; } = 1.5f;
    public float WormMaxRadius                { get; set; } = 3.5f;

    // -- Cave lighting (fog-distance darkness) --
    public float CaveDarkStartY    { get; set; } = 72f;   // WorldConstants.SeaLevel + 8
    public float CaveDarkEndY      { get; set; } = 32f;   // WorldConstants.SeaLevel - 32
    public float CaveMinBrightness { get; set; } = 0.15f;
}