www.pudn.com > 3DMENUDEMO.zip > MLOAD.C

/*========================================================================= 
  Model Loading 
 
  Romka Graphics  
  Author: Roman Podobedov 
  Email: romka@ut.ee 
  WEB: www.ut.ee/~romka 
=========================================================================*/ 
 
/* Model file load */ 
 
#include  
#include  
#include  
#include "mload.h" 
 
void ParseInt(char *s, int *a, int *b, int *c) 
{ 
  int i, j; 
  int x, y, z; 
   
  x = 0; y = -1; z = -1; 
  j = (int)strlen(s); 
  for (i=0; i 32) return 0;
 
  return 1;
} 

void LoadMFile(char *filename, struct model *m) 
{ 
  FILE *f; 
  char buf[128]; 
  int i, j, a; 
  float x, y, z; 
  int kk, ll, mm; 
 
  f = fopen(filename, "r"); 
   
  /* Get info */ 
  fgets(buf, 128, f); 
  ParseInt(buf, &m->vn, &m->nn, &m->pn); 
  /* Get vertexs */ 
  m->v = (float *)malloc(sizeof(float)*3*m->vn); 
  for (i=0; ivn; i++) 
  { 
    do 
    { 
      fgets(buf, 128, f); 
    } while (isEmpty(buf)); 
     
    ParseFloat(buf, &x, &y, &z); 
    m->v[i*3] = x;; 
    m->v[i*3+1] = y;; 
    m->v[i*3+2] = z;; 
  } 
 
  /* Get normals */ 
  m->n = (float *)malloc(sizeof(float)*3*m->nn); 
  for (i=0; inn; i++) 
  { 
    do 
    { 
      fgets(buf, 128, f); 
    } while (isEmpty(buf)); 
     
    ParseFloat(buf, &x, &y, &z); 
    m->n[i*3] = x;; 
    m->n[i*3+1] = y;; 
    m->n[i*3+2] = z;; 
  } 
 
  /* Get polygons */ 
  m->p = (int *)malloc(sizeof(int)*6*m->pn); 
  for (i=0; ipn; i++) 
  { 
    do 
    { 
      fgets(buf, 128, f); 
    } while (isEmpty(buf)); 
  
    for (j=0; j<(int)strlen(buf); j++) 
    { 
      if (buf[j] == 'v') a = j+2; 
      if (buf[j] == 'n') 
      { 
        buf[j-1] = 0; 
        ParseInt(&buf[a], &kk, &ll, &mm); 
        m->p[i*6] = kk; 
        m->p[i*6+1] = ll; 
        m->p[i*6+2] = mm; 
        ParseInt(&buf[j+2], &kk, &ll, &mm); 
        m->p[i*6+3] = kk; 
        m->p[i*6+4] = ll; 
        m->p[i*6+5] = mm; 
        break; 
      } 
    } 
  } 
  fclose(f); 
}