skyparams.h

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// Luanti
// SPDX-License-Identifier: LGPL-2.1-or-later
// Copyright (C) 2019 Jordach, Jordan Snelling <jordach.snelling@gmail.com>
 
#pragma once
 
 
struct SkyColor
{
        video::SColor day_sky;
        video::SColor day_horizon;
        video::SColor dawn_sky;
        video::SColor dawn_horizon;
        video::SColor night_sky;
        video::SColor night_horizon;
        video::SColor indoors;
};
 
struct SkyboxParams
{
        static constexpr float INVALID_SKYBOX_TILT = -1024.f;
 
        video::SColor bgcolor;
        std::string type;
        std::vector<std::string> textures;
        bool clouds;
        SkyColor sky_color;
        video::SColor fog_sun_tint;
        video::SColor fog_moon_tint;
        std::string fog_tint_type;
        float body_orbit_tilt { INVALID_SKYBOX_TILT };
        s16 fog_distance { -1 };
        float fog_start { -1.0f };
        video::SColor fog_color { 0 }; // override, only used if alpha > 0
};
 
struct SunParams
{
        bool visible;
        std::string texture;
        std::string tonemap;
        std::string sunrise;
        bool sunrise_visible;
        f32 scale;
};
 
struct MoonParams
{
        bool visible;
        std::string texture;
        std::string tonemap;
        f32 scale;
};
 
struct StarParams
{
        bool visible;
        u32 count;
        video::SColor starcolor;
        f32 scale;
        f32 day_opacity;
};
 
struct CloudParams
{
        float density;
        video::SColor color_bright;
        video::SColor color_ambient;
        video::SColor color_shadow;
        float thickness;
        float height;
        v2f speed;
};
 
// Utility class for setting default sky, sun, moon, stars values:
class SkyboxDefaults
{
public:
        SkyboxDefaults() = delete;
 
        static const SkyboxParams getSkyDefaults()
        {
                SkyboxParams sky;
                sky.bgcolor = video::SColor(255, 255, 255, 255);
                sky.type = "regular";
                sky.clouds = true;
                sky.sky_color = getSkyColorDefaults();
                sky.fog_sun_tint = video::SColor(255, 244, 125, 29);
                sky.fog_moon_tint = video::SColorf(0.5, 0.6, 0.8, 1).toSColor();
                sky.fog_tint_type = "default";
                sky.fog_color = video::SColor(0);
                return sky;
        }
 
        static const SkyColor getSkyColorDefaults()
        {
                SkyColor sky;
                // Horizon colors
                sky.day_horizon = video::SColor(255, 144, 211, 246);
                sky.indoors = video::SColor(255, 100, 100, 100);
                sky.dawn_horizon = video::SColor(255, 186, 193, 240);
                sky.night_horizon = video::SColor(255, 64, 144, 255);
                // Sky colors
                sky.day_sky = video::SColor(255, 97, 181, 245);
                sky.dawn_sky = video::SColor(255, 180, 186, 250);
                sky.night_sky = video::SColor(255, 0, 107, 255);
                return sky;
        }
 
        static const SunParams getSunDefaults()
        {
                SunParams sun;
                sun.visible = true;
                sun.sunrise_visible = true;
                sun.texture = "sun.png";
                sun.tonemap = "sun_tonemap.png";
                sun.sunrise = "sunrisebg.png";
                sun.scale = 1;
                return sun;
        }
 
        static const MoonParams getMoonDefaults()
        {
                MoonParams moon;
                moon.visible = true;
                moon.texture = "moon.png";
                moon.tonemap = "moon_tonemap.png";
                moon.scale = 1;
                return moon;
        }
 
        static const StarParams getStarDefaults()
        {
                StarParams stars;
                stars.visible = true;
                stars.count = 1000;
                stars.starcolor = video::SColor(105, 235, 235, 255);
                stars.scale = 1;
                stars.day_opacity = 0;
                return stars;
        }
 
        static const CloudParams getCloudDefaults()
        {
                CloudParams clouds;
                clouds.density = 0.4f;
                clouds.color_bright = video::SColor(229, 240, 240, 255);
                clouds.color_ambient = video::SColor(255, 0, 0, 0);
                clouds.color_shadow = video::SColor(255, 204, 204, 204);
                clouds.thickness = 16.0f;
                clouds.height = 120;
                clouds.speed = v2f(0.0f, -2.0f);
                return clouds;
        }
};