public string[] tag; /* array of strings */
/// <summary>
/// Read tag strings from a TAGS chunk in an LWO2 file. The tags are
/// added to the lwTagList array.
/// </summary>
/// <param name="fp"></param>
/// <param name="cksize"></param>
/// <param name="tlist"></param>
/// <param name="flen"></param>
/// <returns></returns>
public static bool GetTags(BinaryReader fp, int cksize, ref lwTagList tlist, ref int flen)
{
byte[] buf;
int len, ntags;
if (cksize == 0)
{
return(true);
}
/* read the whole chunk */
flen = 0;
buf = lwio.getbytes(fp, cksize, ref flen);
if (buf == null)
{
return(false);
}
/* count the strings */
ntags = 0;
int bp = 0;
while (bp < cksize)
{
string s = BitConverter.ToString(buf, bp);
len = s.Length + 1;
len += len & 1;
bp += len;
++ntags;
}
/* expand the string array to hold the new tags */
tlist.offset = tlist.count;
tlist.count += ntags;
tlist.tag = new string[tlist.count];
if (tlist.tag == null)
{
goto Fail;
}
//memset( &tlist->tag[ tlist->offset ], 0, ntags * sizeof( char * ));
/* copy the new tags to the tag array */
bp = 0;
for (int i = 0; i < ntags; i++)
{
tlist.tag[i + tlist.offset] = lwio.sgetS0(buf, ref bp, ref flen);
}
return(true);
Fail:
return(false);
}
/// <summary>
/// Convert tag indexes into actual lwSurface pointers. If any polygons
/// point to tags for which no corresponding surface can be found, a
/// default surface is created.
/// </summary>
public bool ResolvePolySurfaces(ref lwTagList tlist, ref LinkedList <lwSurface> surf, ref int nsurfs)
{
//lwSurface st;
lwSurface[] s;
int index;
if (tlist.count == 0)
{
return(true);
}
s = new lwSurface[tlist.count];
for (int i = 0; i < tlist.count; i++)
{
LinkedListNode <lwSurface> st = surf.First;
while (st != null)
{
if (st.Value.name.CompareTo(tlist.tag[i]) == 0)
{
s[i] = st.Value;
break;
}
st = st.Next;
}
}
//for (int i = 0; i < count; i++)
//{
// index = (int)pol[i].surf;
// if (index < 0 || index > tlist.count)
// return false;
// if (!s[ index ])
// {
// s[ index ] = lwDefaultSurface();
// if ( !s[ index ] )
// return false;
// s[ index ]->name = malloc( strlen( tlist->tag[ index ] ) + 1 );
// if ( !s[ index ]->name )
// return false;
// strcpy( s[ index ]->name, tlist->tag[ index ] );
// lwListAdd( surf, s[ index ] );
// *nsurfs = *nsurfs + 1;
// }
// polygon->pol[ i ].surf = s[ index ];
//}
s = null;
return(true);
}
public string[] tag; /* array of strings */
/// <summary>
/// Read tag strings from a TAGS chunk in an LWO2 file. The tags are
/// added to the lwTagList array.
/// </summary>
/// <param name="fp"></param>
/// <param name="cksize"></param>
/// <param name="tlist"></param>
/// <param name="flen"></param>
/// <returns></returns>
public static bool GetTags(BinaryReader fp, int cksize, ref lwTagList tlist, ref int flen)
{
byte[] buf;
int len, ntags;
if (cksize == 0)
return true;
/* read the whole chunk */
flen = 0;
buf = lwio.getbytes(fp, cksize, ref flen);
if (buf == null)
return false;
/* count the strings */
ntags = 0;
int bp = 0;
while (bp < cksize)
{
string s = BitConverter.ToString(buf, bp);
len = s.Length + 1;
len += len & 1;
bp += len;
++ntags;
}
/* expand the string array to hold the new tags */
tlist.offset = tlist.count;
tlist.count += ntags;
tlist.tag = new string[tlist.count];
if (tlist.tag == null)
goto Fail;
//memset( &tlist->tag[ tlist->offset ], 0, ntags * sizeof( char * ));
/* copy the new tags to the tag array */
bp = 0;
for (int i = 0; i < ntags; i++)
tlist.tag[i + tlist.offset] = lwio.sgetS0(buf, ref bp, ref flen);
return true;
Fail:
return false;
}
/// <summary>
/// Convert tag indexes into actual lwSurface pointers. If any polygons
/// point to tags for which no corresponding surface can be found, a
/// default surface is created.
/// </summary>
public bool ResolvePolySurfaces(ref lwTagList tlist, ref LinkedList<lwSurface> surf, ref int nsurfs)
{
//lwSurface st;
lwSurface[] s;
int index;
if (tlist.count == 0)
return true;
s = new lwSurface[tlist.count];
for (int i = 0; i < tlist.count; i++)
{
LinkedListNode<lwSurface> st = surf.First;
while (st != null)
{
if (st.Value.name.CompareTo(tlist.tag[i]) == 0)
{
s[i] = st.Value;
break;
}
st = st.Next;
}
}
//for (int i = 0; i < count; i++)
//{
// index = (int)pol[i].surf;
// if (index < 0 || index > tlist.count)
// return false;
// if (!s[ index ])
// {
// s[ index ] = lwDefaultSurface();
// if ( !s[ index ] )
// return false;
// s[ index ]->name = malloc( strlen( tlist->tag[ index ] ) + 1 );
// if ( !s[ index ]->name )
// return false;
// strcpy( s[ index ]->name, tlist->tag[ index ] );
// lwListAdd( surf, s[ index ] );
// *nsurfs = *nsurfs + 1;
// }
// polygon->pol[ i ].surf = s[ index ];
//}
s = null;
return true;
}
