anonymous_namespace{starfield.cpp} Namespace Reference

Classes
struct	LayerConfig
struct	Particle

Enumerations
enum class	StarType {   NORMAL , BRIGHT , BLUE , ORANGE ,   RED , YELLOW }

Functions
float	random_float (float min, float max)
StarType	random_star_type ()
glm::vec4	star_color (StarType type, float brightness)

Variables
constexpr std::array< LayerConfig, NUM_LAYERS >	LAYERS
constexpr int	NUM_LAYERS = 3
constexpr int	NUM_PARTICLES = 50000
constexpr int	WARP_TRAIL_SEGMENTS = 5

Enumeration Type Documentation

StarType

enum class anonymous_namespace{starfield.cpp}::StarType

strong

Enumerator
NORMAL
BRIGHT
BLUE
ORANGE
RED
YELLOW

Definition at line 22 of file starfield.cpp.

                        {
        NORMAL,
        BRIGHT,
        BLUE,
        ORANGE,
        RED,
        YELLOW
    };

Function Documentation

random_float()

float anonymous_namespace{starfield.cpp}::random_float ( float min, float max )

nodiscard

Definition at line 66 of file starfield.cpp.

                                                           {
        static std::random_device rd;
        static std::default_random_engine engine(rd());
        std::uniform_real_distribution<float> dist(min, max);
        return dist(engine);
    }

random_star_type()

StarType anonymous_namespace{starfield.cpp}::random_star_type ( )

nodiscard

Definition at line 73 of file starfield.cpp.

                                              {
        const float r = random_float(0.0f, 1.0f);
        if (r < 0.50f) {
            return StarType::NORMAL;
        }
        if (r < 0.65f) {
            return StarType::BLUE;
        }
        if (r < 0.75f) {
            return StarType::YELLOW;
        }
        if (r < 0.85f) {
            return StarType::ORANGE;
        }
        if (r < 0.92f) {
            return StarType::RED;
        }
        return StarType::BRIGHT;
    }

star_color()

glm::vec4 anonymous_namespace{starfield.cpp}::star_color ( StarType type, float brightness )

nodiscard

Definition at line 93 of file starfield.cpp.

                                                                      {
        switch (type) {
        case StarType::BLUE:
            return glm::vec4(0.6f * brightness, 0.8f * brightness, 1.0f * brightness, 1.0f);
        case StarType::ORANGE:
            return glm::vec4(1.0f * brightness, 0.7f * brightness, 0.3f * brightness, 1.0f);
        case StarType::RED:
            return glm::vec4(1.0f * brightness, 0.4f * brightness, 0.4f * brightness, 1.0f);
        case StarType::YELLOW:
            return glm::vec4(1.0f * brightness, 1.0f * brightness, 0.6f * brightness, 1.0f);
        case StarType::BRIGHT:
            return glm::vec4(1.0f * brightness, 1.0f * brightness, 1.0f * brightness, 1.0f);
        case StarType::NORMAL:
        default:
            return glm::vec4(0.9f * brightness, 0.9f * brightness, 1.0f * brightness, 1.0f);
        }
    }

Variable Documentation

LAYERS

std::array<LayerConfig, NUM_LAYERS> anonymous_namespace{starfield.cpp}::LAYERS

constexpr

Initial value:

{{
        {-12.0f, -6.0f, 0.2f, 0.6f, 28000},
        {-6.0f, -3.0f, 0.5f, 1.0f, 14000},
        {-3.0f, -1.0f, 1.0f, 1.6f, 8000},
    }}

Definition at line 60 of file starfield.cpp.

                                                      {{
        {-12.0f, -6.0f, 0.2f, 0.6f, 28000},
        {-6.0f, -3.0f, 0.5f, 1.0f, 14000},
        {-3.0f, -1.0f, 1.0f, 1.6f, 8000},
    }};

NUM_LAYERS

int anonymous_namespace{starfield.cpp}::NUM_LAYERS = 3

constexpr

Definition at line 57 of file starfield.cpp.

NUM_PARTICLES

int anonymous_namespace{starfield.cpp}::NUM_PARTICLES = 50000

constexpr

Definition at line 56 of file starfield.cpp.

WARP_TRAIL_SEGMENTS

int anonymous_namespace{starfield.cpp}::WARP_TRAIL_SEGMENTS = 5

constexpr

Definition at line 58 of file starfield.cpp.