Ground.h

//
//  Ground.h
//  avara3d
//
//  Created by Morgan Davis on 8/9/26.
//  Copyright © 2026 Morgan K Davis. All rights reserved.
//
 
#ifndef AVARA3D_VISUAL_GROUND_H
#define AVARA3D_VISUAL_GROUND_H
 
#include "a3d/Color.h"
 
#include <memory>
#include <optional>
#include <variant>
 
#include "a3d/Math.h"
 
namespace a3d {
 
    class Material;
 
    struct Ground {
 
        // [Public Types]
 
        struct Procedural {
 
            // [Public Types]
 
            struct GridComponent {
 
                // [Public Member Variables]
 
                Color color {};                 
                float spacing {
                    1.0f}; 
                float lineWidthPixels {1.0f}; 
                float reliefStrength {0.0f}; 
            };
 
            struct Grid {
 
                // [Public Member Variables]
 
                Color                        color {}; 
                std::optional<GridComponent> minor {}; 
                std::optional<GridComponent> major {}; 
                float                        specularIntensity {
                    0.15f}; 
                float specularExponent {
                    32.0f}; 
            };
 
            using Content = std::variant<Grid>;
 
            // [Public Member Variables]
 
            Content content {Grid {}}; 
        };
 
        using Fill = std::variant<Procedural, std::shared_ptr<Material>>;
 
        struct RadialFade {
 
            // [Public Member Variables]
 
            Color      color {Color::Black()}; 
            math::vec2 center {0.0f, 0.0f}; 
            float      startDistance {
                10.0f}; 
            float endDistance {
                100.0f}; 
        };
 
        struct HorizonHaze {
 
            // [Public Member Variables]
 
            Color color {}; 
            float angularWidth {
                math::radians(3.0f)}; 
        };
 
        // [Public Member Variables]
 
        Fill                       fill {Procedural {}}; 
        std::optional<RadialFade>  radialFade {}; 
        std::optional<HorizonHaze> horizonHaze {}; 
    };
 
}
 
#endif // AVARA3D_VISUAL_GROUND_H