text: #ifndef DEF_LIGHT
  #define DEF_LIGHT
  
  #include "color.h"
  #include "ray.h"
  
  typedef struct light {
  	Vector3 position;
  	Color color;
  	double intensity;
  	char type[4];
  } Light;
  
  float getLightIntensity(Vector3 L, Vector3 normal);
  int getLightIntensity2(Ray ray, Vector3 normale);
  int getSpecularEffect(Ray ray, Vector3 normale);
  #endif