public ABScene3D LoadScene(string file)
{
uint failId;
int failPos;
lwObject lwobj = lwObject.GetObject5(file, out failId, out failPos);
if (lwobj != null)
{
// convert to AB
ABScene3D scene = new ABScene3D();
ABMaterial[] materials = null;
int[] clipIndices = null;
if (lwobj.surf != null && lwobj.surf.Count > 0)
{
materials = new ABMaterial[lwobj.surf.Count];
clipIndices = new int[lwobj.surf.Count];
LinkedList <lwSurface> .Enumerator matIter = lwobj.surf.GetEnumerator();
int matIdx = 0;
while (matIter.MoveNext())
{
lwSurface surface = matIter.Current;
ABMaterial mat = materials[matIdx] = new ABMaterial();
mat.Name = surface.name;
mat.Ambient = new ABColorARGB();
mat.Ambient.A = 0xFF;
mat.Ambient.R = (byte)(surface.color.rgb[0] / 255f);
mat.Ambient.G = (byte)(surface.color.rgb[1] / 255f);
mat.Ambient.B = (byte)(surface.color.rgb[2] / 255f);
mat.Diffuse = new ABColorARGB();
mat.Diffuse.A = 0xFF;
mat.Diffuse.R = (byte)((surface.diffuse.val * surface.color.rgb[0]) / 255f);
mat.Diffuse.G = (byte)((surface.diffuse.val * surface.color.rgb[1]) / 255f);
mat.Diffuse.B = (byte)((surface.diffuse.val * surface.color.rgb[2]) / 255f);
if (surface.color.tex != null)
{
// resolve texture
//mat.TextureName
clipIndices[matIdx] = surface.color.tex.First.Value.imap.cindex;
mat.TextureName = surface.color.tex.First.Value.imap.vmap_name;
}
else
{
clipIndices[matIdx] = -1;
}
matIdx++;
}
}
LinkedList <lwLayer> .Enumerator layIter = lwobj.layer.GetEnumerator();
scene.Models = new ABModel3D[lwobj.layer.Count];
int mdlIdx = 0;
while (layIter.MoveNext())
{
lwLayer layer = layIter.Current;
ABModel3D model = scene.Models[mdlIdx] = new ABModel3D();
model.Geometry = new ABGeometry3D();
model.Geometry.Vertices = new Vector3[layer.point.count];
// break up polygons by surface
Dictionary <lwSurface, int> surfGroupCounts = new Dictionary <lwSurface, int>();
for (int i = 0; i < layer.polygon.pol.Length; i++)
{
lwPolygon polygon = layer.polygon.pol[i];
if (surfGroupCounts.ContainsKey(polygon.surf))
{
surfGroupCounts[polygon.surf]++;
}
else
{
surfGroupCounts[polygon.surf] = 1;
}
}
int[] groupIndices = new int[surfGroupCounts.Count];
model.MaterialIndices = new ABMaterialIndex[surfGroupCounts.Count];
for (int i = 0; i < layer.polygon.pol.Length; i++)
{
lwPolygon polygon = layer.polygon.pol[i];
if (surfGroupCounts.ContainsKey(polygon.surf))
{
surfGroupCounts[polygon.surf]++;
}
else
{
surfGroupCounts[polygon.surf] = 1;
}
}
}
// match up clips to materials
}
return(null);
}
public const uint ID_TFP1 = 0x54465031; //ID(('T','F','P','1')
#endregion
/// <summary>
/// Returns the contents of an LWOB, given its filename, or NULL if the
/// file couldn't be loaded. On failure, failID and failpos can be used
/// to diagnose the cause.
///
/// 1. If the file isn't an LWOB, failpos will contain 12 and failID will
/// be unchanged.
///
/// 2. If an error occurs while reading an LWOB, failID will contain the
/// most recently read IFF chunk ID, and failpos will contain the
/// value returned by ftell() at the time of the failure.
///
/// 3. If the file couldn't be opened, or an error occurs while reading
/// the first 12 bytes, both failID and failpos will be unchanged.
///
/// If you don't need this information, failID and failpos can be NULL.
/// </summary>
public static lwObject GetObject5(string filename, out uint failID, out int failpos)
{
FileStream fp = null;
BinaryReader br = null;
lwObject obj;
lwLayer layer;
lwSurface node;
uint id, formsize, type, cksize;
int flen;
/* open the file */
try
{
br = new BinaryReader(fp = new FileStream(filename, FileMode.Open));
}
catch { failID = 0; failpos = 0; return(null); }
/* read the first 12 bytes */
flen = 0;
id = lwio.getU4(br, ref flen);
formsize = lwio.getU4(br, ref flen);
type = lwio.getU4(br, ref flen);
if (12 != flen)
{
br.Close();
fp.Close();
failID = 0; failpos = 0;
return(null);
}
/* LWOB? */
if (id != LWID.ID_FORM || type != LWID.ID_LWOB)
{
br.Close();
fp.Close();
failpos = 12;
failID = 0;
return(null);
}
/* allocate an object and a default layer */
obj = new lwObject();
layer = new lwLayer();
obj.layer = new LinkedList <lwLayer>();
obj.layer.AddFirst(layer);
obj.nlayers = 1;
/* get the first chunk header */
id = lwio.getU4(br, ref flen);
cksize = lwio.getU4(br, ref flen);
if (0 > flen)
{
goto Fail;
}
/* process chunks as they're encountered */
while (true)
{
cksize += cksize & 1;
switch (id)
{
case LWID.ID_PNTS:
if (!lwPointList.GetPoints(fp, (int)cksize, ref layer.point, ref flen))
{
goto Fail;
}
break;
case LWID.ID_POLS:
if (!layer.polygon.GetPolygons5(fp, cksize, layer.point.offset))
{
goto Fail;
}
break;
case ID_SRFS:
if (!lwTagList.GetTags(br, (int)cksize, ref obj.taglist, ref flen))
{
goto Fail;
}
break;
case LWID.ID_SURF:
node = obj.GetSurface5(br, (int)cksize, ref flen);
if (node == null)
{
goto Fail;
}
obj.surf.AddLast(node);
obj.nsurfs++;
break;
default:
fp.Seek(cksize, SeekOrigin.Current);
break;
}
/* end of the file? */
if (formsize <= (uint)fp.Position - 8)
{
break;
}
/* get the next chunk header */
flen = 0;
id = lwio.getU4(br, ref flen);
cksize = lwio.getU4(br, ref flen);
if (8 != flen)
{
goto Fail;
}
}
br.Close();
fp.Close();
fp = null;
layer.point.GetBoundingBox(ref layer.bbox);
layer.point.GetPolyNormals(ref layer.polygon);
if (!layer.point.GetPointPolygons(ref layer.polygon))
{
goto Fail;
}
if (!layer.polygon.ResolvePolySurfaces(ref obj.taglist,
ref obj.surf, ref obj.nsurfs))
{
goto Fail;
}
layer.point.GetVertNormals(ref layer.polygon);
failID = 0; failpos = 0;
return(obj);
Fail:
failID = id;
if (fp != null)
{
failpos = (int)fp.Position;
fp.Close();
}
else
{
failpos = 0;
}
obj.Dispose();
return(null);
}
public const uint ID_TFP1 = 0x54465031;//ID(('T','F','P','1')
#endregion
/// <summary>
/// Returns the contents of an LWOB, given its filename, or NULL if the
/// file couldn't be loaded. On failure, failID and failpos can be used
/// to diagnose the cause.
///
/// 1. If the file isn't an LWOB, failpos will contain 12 and failID will
/// be unchanged.
///
/// 2. If an error occurs while reading an LWOB, failID will contain the
/// most recently read IFF chunk ID, and failpos will contain the
/// value returned by ftell() at the time of the failure.
///
/// 3. If the file couldn't be opened, or an error occurs while reading
/// the first 12 bytes, both failID and failpos will be unchanged.
///
/// If you don't need this information, failID and failpos can be NULL.
/// </summary>
public static lwObject GetObject5(string filename, out uint failID, out int failpos)
{
FileStream fp = null;
BinaryReader br = null;
lwObject obj;
lwLayer layer;
lwSurface node;
uint id, formsize, type, cksize;
int flen;
/* open the file */
try
{
br = new BinaryReader(fp = new FileStream(filename, FileMode.Open));
}
catch { failID = 0; failpos = 0; return null; }
/* read the first 12 bytes */
flen = 0;
id = lwio.getU4(br, ref flen);
formsize = lwio.getU4(br, ref flen);
type = lwio.getU4(br, ref flen);
if (12 != flen)
{
br.Close();
fp.Close();
failID = 0; failpos = 0;
return null;
}
/* LWOB? */
if (id != LWID.ID_FORM || type != LWID.ID_LWOB)
{
br.Close();
fp.Close();
failpos = 12;
failID = 0;
return null;
}
/* allocate an object and a default layer */
obj = new lwObject();
layer = new lwLayer();
obj.layer = new LinkedList<lwLayer>();
obj.layer.AddFirst(layer);
obj.nlayers = 1;
/* get the first chunk header */
id = lwio.getU4(br, ref flen);
cksize = lwio.getU4(br, ref flen);
if (0 > flen)
goto Fail;
/* process chunks as they're encountered */
while (true)
{
cksize += cksize & 1;
switch (id)
{
case LWID.ID_PNTS:
if (!lwPointList.GetPoints(fp, (int)cksize, ref layer.point, ref flen))
goto Fail;
break;
case LWID.ID_POLS:
if (!layer.polygon.GetPolygons5(fp, cksize, layer.point.offset))
goto Fail;
break;
case ID_SRFS:
if (!lwTagList.GetTags(br, (int)cksize, ref obj.taglist, ref flen))
goto Fail;
break;
case LWID.ID_SURF:
node = obj.GetSurface5(br, (int)cksize, ref flen);
if (node == null) goto Fail;
obj.surf.AddLast(node);
obj.nsurfs++;
break;
default:
fp.Seek(cksize, SeekOrigin.Current);
break;
}
/* end of the file? */
if (formsize <= (uint)fp.Position - 8) break;
/* get the next chunk header */
flen = 0;
id = lwio.getU4(br, ref flen);
cksize = lwio.getU4(br, ref flen);
if (8 != flen) goto Fail;
}
br.Close();
fp.Close();
fp = null;
layer.point.GetBoundingBox(ref layer.bbox);
layer.point.GetPolyNormals(ref layer.polygon);
if (!layer.point.GetPointPolygons(ref layer.polygon)) goto Fail;
if (!layer.polygon.ResolvePolySurfaces(ref obj.taglist,
ref obj.surf, ref obj.nsurfs)) goto Fail;
layer.point.GetVertNormals(ref layer.polygon);
failID = 0; failpos = 0;
return obj;
Fail:
failID = id;
if (fp != null)
{
failpos = (int)fp.Position;
fp.Close();
}
else
failpos = 0;
obj.Dispose();
return null;
}
