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Sourcecode: acm4 version File versions  Download package

VWriteObject.c

#include "Vlib.h"
#include <string.h>

int VWriteObject(f, obj)
FILE    *f;
VObject *obj; {

      int    i, j, k, points;
      VPolygon **q;
      VPoint       *p;

/*
 *  Total the number of vertices in all of the object's polygons
 */

      points = 0;
      q = obj->polygon;
      for (i=0; i<obj->numPolys; ++i) {
            points += q[i]->numVtces;
      }

/*
 *  Print the header
 */

      fprintf (f, "%s\n%d %d\n", obj->name, points, obj->numPolys);

/*
 *  Print the point list
 */

      k = 1;
      q = obj->polygon;
      for (i=0; i<obj->numPolys; ++i) {
            for ((j=0, p=q[i]->vertex); j<q[i]->numVtces; (++p, ++j)) {
                  fprintf(f, "%d %g %g %g\n", k, p->x, p->y, p->z);
                  ++k;
            }
      }

/*
 *  Print the polygon list
 */

      k = 1;
      q = obj->polygon;
      for (i=0; i<obj->numPolys; ++i) {
            if (q[i]->backColor) {
                  fprintf(f, "(%s %s) %d",
                        q[i]->color->color_name,
                        q[i]->backColor->color_name,
                        q[i]->numVtces);;
            }
            else if (q[i]->flags & PolyClipBackface) {
                  fprintf(f, "(%s clip) %d",
                        q[i]->color->color_name,
                        q[i]->numVtces);
            }
            else {
                  fprintf(f, "%s %d",
                        q[i]->color->color_name,
                        q[i]->numVtces);
            }
            for (j=0; j<q[i]->numVtces; ++j)
                  fprintf(f, " %d", k++);
            fprintf (f, "\n");
      }

      return ferror(f) ? -1 : 0;
}

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