text: #ifndef SEGMENT
  #define SEGMENT
  #include "bmp.h"
  void tracer_Segment_0(PIXEL** image, int x1, int y1, int x2, int y2, PIXEL color);
  void tracer_Segment_1(PIXEL** image, int x1, int y1, int x2, int y2, PIXEL color);
  void tracer_Segment_2(PIXEL** image, int x1, int y1, int x2, int y2, PIXEL color);
  void segment_bresenham(PIXEL** image, int x1, int y1, int x2, int y2, PIXEL color);
  #endif // SEGMENT
  