static public void GetMidPoint(Faces faces, out Vector3D ptMidPoint)
{
Vector3D ptMin, ptMax;
FaceUtils.GetExtents(faces, out ptMin, out ptMax);
ptMidPoint = (ptMin + ptMax) * 0.5f;
}
public void LoadDataSet(string fileName, Color clr)
{
//Debug.Assert( this.Faces.Count == 0 );
//Debug2.Push( "Parse Object Definition File" );
TokenReader tr = new TokenReader(fileName, ' ');
int vertexCount = int.Parse(tr.GetToken());
int triangleCount = int.Parse(tr.GetToken());
_vertices = new Vector3D[vertexCount];
_normals = new Vector3D[vertexCount];
_triangles = new int[triangleCount * 3];
_trianglePlanes = new Plane3D[triangleCount];
for (int v = 0; v < vertexCount; v++)
{
tr.GetToken();
_vertices[v] = new Vector3D(
float.Parse(tr.GetToken()),
float.Parse(tr.GetToken()),
float.Parse(tr.GetToken()));
_normals[v] = new Vector3D(0, 0, 0);
}
// translate vertices
Vector3D ptOldMin, ptOldMax;
FaceUtils.GetExtents(_vertices, out ptOldMin, out ptOldMax);
Vector3D ptOldMidPoint = (ptOldMin + ptOldMax) * 0.5f;
float fOldScale = (ptOldMidPoint - ptOldMin).GetMagnitude();
for (int i = 0; i < vertexCount; i++)
{
_vertices[i] = (_vertices[i] - ptOldMidPoint) / fOldScale * this.Scale + this.MidPoint;
}
for (int t = 0; t < triangleCount; t++)
{
tr.GetToken();
// triangle vertices
_triangles[t * 3 + 0] = int.Parse(tr.GetToken());
_triangles[t * 3 + 1] = int.Parse(tr.GetToken());
_triangles[t * 3 + 2] = int.Parse(tr.GetToken());
// skip extra triangle info
tr.GetToken();
tr.GetToken();
tr.GetToken();
// calculate triangle normal
Vector3D vertexA = _vertices[_triangles[t * 3 + 0]];
Vector3D vertexB = _vertices[_triangles[t * 3 + 1]];
Vector3D vertexC = _vertices[_triangles[t * 3 + 2]];
_trianglePlanes[t] = Plane3D.FromCoplanarPoints(vertexA, vertexB, vertexC);
//Vector3D.Cross( vertexC - vertexB, vertexA - vertexB ).GetUnit();
}
tr.Close();
//Debug2.Pop();
/*for( int v = 0; v < vertexCount; v ++ ) {
* if( vertexNormals[ v ].GetMagnitude() > 0.1 ) {
* vertexNormals[ v ].Normalize();
* }
* else {
* vertexNormals[ v ] = new Vector3D( 1, 0, 0 );
* }
* } */
//Debug2.Push( "Calculate Face Normals" );
float fLimit = 0f;
for (int t = 0; t < triangleCount; t++)
{
for (int v = 0; v < 3; v++)
{
int vIndex = _triangles[t * 3 + v];
Vector3D normalSum = _trianglePlanes[t].Normal;
Vector3D normal = _trianglePlanes[t].Normal;
for (int t2 = 0; t2 < triangleCount; t2++)
{
if (t2 == t)
{
continue;
}
bool bMatch = false;
for (int v2 = 0; v2 < 3; v2++)
{
if (vIndex == _triangles[t2 * 3 + v2])
{
bMatch = true;
break;
}
}
if (bMatch == true)
{
Vector3D normal2 = _trianglePlanes[t2].Normal;
if (Vector3D.Dot(normal, normal2) > fLimit)
{
normalSum += normal2;
}
}
}
if (normalSum.GetMagnitude() > 0.01)
{
_normals[vIndex] = normalSum.GetUnit();
}
else
{
_normals[vIndex] = (Vector3D)normal.Clone();
}
}
}
//Debug2.Pop();
/*
* int a = faceIndices[ f, 0 ];
* int b = faceIndices[ f, 1 ];
* int c = faceIndices[ f, 2 ];
*
* Face face = this.Faces[f];
* face.VertexNormals = new Vector3DCollection();
* face.VertexNormals.Add( vertexNormals[ a ].Clone() );
* face.VertexNormals.Add( vertexNormals[ b ].Clone() );
* face.VertexNormals.Add( vertexNormals[ c ].Clone() );
* }*/
}
//-----------------------------------------------------------------------------
static public World FromWorldcraftMap(WorldcraftMap wm)
{
// create new world
World world = new World();
world.Textures = wm.Textures;
world.SkyBox = new SkyBox("redSky");
world.FileName = Path.Combine(ExoEngine.sWorldPath, Path.ChangeExtension(Path.GetFileName(wm.FileName), ExoEngine.sWorldExtension));
world.Dirty = true;
// find the starting location
WorldcraftObject woStartPosition = wm.Objects.FindByClassName("StartPosition");
if (woStartPosition == null)
{
return(null);
}
Vector3D ptStartPosition;
FaceUtils.GetMidPoint(woStartPosition.Faces, out ptStartPosition);
world.StartPosition = ptStartPosition;
world.StartOrientation = woStartPosition.GetPropertyInteger("orientation", 0);
// find the main light
WorldcraftObject woLight = wm.Objects.FindByClassName("Light");
if (woLight == null)
{
return(null);
}
Vector3D ptLight;
FaceUtils.GetMidPoint(woLight.Faces, out ptLight);
world.Light = ptLight;
// find "Default" group... it is the static world
WorldcraftObject woDefault = wm.Objects.FindByClassName("Default");
if (woDefault == null)
{
return(null);
}
// setup BSP tree
Faces faces = new Faces();
// handle the other objects
foreach (WorldcraftObject wo in wm.Objects)
{
if (wo.ClassName == "Water")
{
Vector3D ptMin, ptMax;
FaceUtils.GetExtents(wo.Faces, out ptMin, out ptMax);
Water water = new Water(ptMin, ptMax, wo.GetPropertyFloat("waveHeight", 100));
water.Color = wo.GetPropertyColor("color", Color.Azure);
world.Entities.Add(water);
}
else if (wo.ClassName == "Duck")
{
Vector3D ptMin, ptMax;
FaceUtils.GetExtents(wo.Faces, out ptMin, out ptMax);
Duck duck = new Duck(ptMin, ptMax);
duck.LoadDataSet(Path.Combine(ExoEngine.sSpritePath, "duck.odf"), wo.GetPropertyColor("color", Color.Yellow));
world.Entities.Add(duck);
foreach (Face face in wo.Faces)
{
face.Visible = false;
}
faces.AddRange(wo.Faces);
}
}
world.Entities.SortByPriority();
faces.AddRange(woDefault.Faces);
FaceUtils.OptimizeFaces(faces);
world.BSPTreeRoot = BSPTreeNode.FromFaces(faces);
return(world);
}
