61 lines
2.8 KiB
C++
61 lines
2.8 KiB
C++
#ifndef STAR_CELESTIAL_GENERATION_HPP
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#define STAR_CELESTIAL_GENERATION_HPP
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#include "StarCelestialDatabase.hpp"
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namespace Star {
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STAR_CLASS(CelestialDatabase);
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// Functions for generating and drawing worlds from a celestial database.
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// Guards against drawing unloaded celestial objects, will return empty if no
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// information is returned from the celestial database.
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//
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// Drawing methods return the stack of images to draw and the scale to draw
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// them at.
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class CelestialGraphics {
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public:
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// Some static versions of drawing functions are given that do not require an
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// active CelestialDatabasePtr to draw.
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static List<pair<String, float>> drawSystemPlanetaryObject(CelestialParameters const& celestialParameters);
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static List<pair<String, float>> drawSystemCentralBody(CelestialParameters const& celestialParameters);
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// Specify the shadowing parameters in order to use the shadowing
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// information from that body instead of the primary one.
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static List<pair<String, float>> drawWorld(
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CelestialParameters const& celestialParameters, Maybe<CelestialParameters> const& shadowingParameters = {});
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static List<pair<String, String>> worldHorizonImages(CelestialParameters const& celestialParameters);
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static int worldRadialPosition(CelestialParameters const& celestialParameters);
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// Each orbiting body will occupy a unique orbital slot, but to give
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// graphical diversity, will also fit into exactly one radial slot for
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// display purposes. The range of radial numbers is [0, RadialPosiitons)
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static int planetRadialPositions();
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static int satelliteRadialPositions();
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static List<pair<String, float>> drawSystemTwinkle(CelestialDatabasePtr celestialDatabase, CelestialCoordinate const& system, double twinkleTime);
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// Returns the small graphic for the given planetary object appropriate for a
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// system-level view.
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static List<pair<String, float>> drawSystemPlanetaryObject(CelestialDatabasePtr celestialDatabase, CelestialCoordinate const& coordinate);
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static List<pair<String, float>> drawSystemCentralBody(CelestialDatabasePtr celestialDatabase, CelestialCoordinate const& coordinate);
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// Returns the graphics appropriate to draw an entire world (planetary object
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// or satellite object) in a map view. Shadows the satellite the same as
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// its parent planetary object.
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static List<pair<String, float>> drawWorld(CelestialDatabasePtr celestialDatabase, CelestialCoordinate const& coordinate);
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// Draw all of the left and right image pairs for all the layers for the
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// world horizon.
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static List<pair<String, String>> worldHorizonImages(CelestialDatabasePtr celestialDatabase, CelestialCoordinate const& coordinate);
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static int worldRadialPosition(CelestialDatabasePtr celestialDatabase, CelestialCoordinate const& coordinate);
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private:
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};
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}
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#endif
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