FaceParts.h

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// Copyright © 2008-2023 Pioneer Developers. See AUTHORS.txt for details
// Licensed under the terms of the GPL v3. See licenses/GPL-3.txt
 
#ifndef FACE_PARTS_H
#define FACE_PARTS_H
 
#include <SDL_stdinc.h>
 
// FaceParts deals with:
//   - Scanning the data/facegen/ directory and loading all the face part images
//   - Generating random faces from a particular seed and constraints
//   - Building a combined face image from a face descriptor
 
struct SDL_Surface;
 
namespace FaceParts {
    extern const int FACE_WIDTH;
    extern const int FACE_HEIGHT;
 
    // describes a face
    // components can be set to -1 to indicate that the attribute should be chosen randomly,
    // or set to a non-negative integer to specify a particular part
    struct FaceDescriptor {
        // selectors
        int species = -1;
        int race = -1;
        int gender = -1;
 
        // parts
        int head = -1;
        int eyes = -1;
        int nose = -1;
        int mouth = -1;
        int hairstyle = -1;
        int accessories = -1;
        int clothes = -1;
        int armour = -1;
    };
 
    void Init();
    void Uninit();
 
    int NumSpecies();
    int NumGenders(const int speciesIdx);
    int NumRaces(const int speciesIdx);
 
    int NumHeads(const int speciesIdx, const int raceIdx, const int genderIdx);
    int NumEyes(const int speciesIdx, const int raceIdx, const int genderIdx);
    int NumNoses(const int speciesIdx, const int raceIdx, const int genderIdx);
    int NumMouths(const int speciesIdx, const int raceIdx, const int genderIdx);
    int NumHairstyles(const int speciesIdx, const int raceIdx, const int genderIdx);
    int NumClothes(const int speciesIdx, const int raceIdx, const int genderIdx);
    int NumAccessories(const int speciesIdx, const int raceIdx, const int genderIdx);
    int NumArmour(const int speciesIdx, const int raceIdx, const int genderIdx);
 
    void PickFaceParts(FaceDescriptor &inout_face, const Uint32 seed);
    void BuildFaceImage(SDL_Surface *faceIm, const FaceDescriptor &face);
} // namespace FaceParts
 
#endif