BoundingBoxSet.hpp

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#pragma once
 
#include <memory>
#include "Logger.hpp"
#include <vector>
#include "Math.hpp"
#include "Model.hpp"
 
namespace small3d {
 
  class BoundingBoxSet {
  private:
 
    uint32_t numBoxes = 0;
    void triangulate();
    void calcExtremes();
    void generateBoxesFromExtremes();
    void generateExtremes(const std::vector<float>& vertexData, const Vec3& scale, uint32_t subdivisions);
    void generateSubExtremes(const std::vector<float>& vertexData, const Vec3& scale);
 
  public:
 
    struct extremes {
    
      float minZ = 0.0f, maxZ = 0.0f, minX = 0.0f, maxX = 0.0f, minY = 0.0f, maxY = 0.0f;
      bool tagged = false;
    
    };
 
    std::vector<extremes> boxExtremes;
 
    int getNumBoxes() const;
 
    BoundingBoxSet();
 
    BoundingBoxSet(const std::vector<float>& vertexData, const Vec3& scale, uint32_t subdivisions);
 
    ~BoundingBoxSet() = default;
 
    std::vector<std::vector<float> > vertices;
 
    std::vector<std::vector<unsigned int> > facesVertexIndexes;
 
    std::vector<std::vector<unsigned int> > facesVertexIndexesTriangulated;
 
    bool contains(const Vec3 point, const Vec3 thisOffset,
      const Mat4 thisRotation) const;
 
    bool containsCorners(const BoundingBoxSet& otherBoxSet,
      const Vec3 thisOffset,
      const Mat4 thisRotation,
      const Vec3 otherOffset,
      const Mat4 otherRotation) const;
 
    std::vector<Model> getModels();
 
  };
}