void DumpOBJ(TelescopeStructure structure, string filename)
{
using (StreamWriter file = new StreamWriter(filename))
{
// First write all vertices.
int vertOffset = 1;
List <int> vertexOffsets = new List <int>();
// Write all vertices for all junctures
foreach (TelescopeJuncture j in structure.junctures)
{
// Record what index the first vertex should be
vertexOffsets.Add(vertOffset);
// Write all vertices
foreach (Vector3 vLocal in j.JunctureMesh.vertices)
{
// Write in world space
Vector3 v = j.transform.rotation * vLocal + j.transform.position;
file.WriteLine("v " + -v.x + " " + v.y + " " + v.z);
}
// Increment the offset by the vertex count we just added
vertOffset += j.JunctureMesh.vertexCount;
}
// Write all vertices for all shells
foreach (TelescopeSegment seg in structure.segments)
{
foreach (TelescopeShell s in seg.shells)
{
// Record index of first vertex
vertexOffsets.Add(vertOffset);
// Write all vertices
foreach (Vector3 vLocal in s.mesh.vertices)
{
// World space
Vector3 v = s.transform.rotation * vLocal + s.transform.position;
file.WriteLine("v " + -v.x + " " + v.y + " " + v.z);
}
// Increment offset
vertOffset += s.mesh.vertexCount;
}
}
// Now write all faces.
int currentElement = 0;
// Write faces for each juncture
foreach (TelescopeJuncture j in structure.junctures)
{
// Read which vertex we start numbering from
int startIndex = vertexOffsets[currentElement];
int numTriangles = j.JunctureMesh.triangles.Length / 3;
// Write the faces
for (int f = 0; f < numTriangles; f++)
{
int v1 = j.JunctureMesh.triangles[3 * f + 0] + startIndex;
int v2 = j.JunctureMesh.triangles[3 * f + 1] + startIndex;
int v3 = j.JunctureMesh.triangles[3 * f + 2] + startIndex;
file.WriteLine("f " + v1 + " " + v2 + " " + v3);
}
currentElement++;
}
// Write all faces for shells
foreach (TelescopeSegment seg in structure.segments)
{
foreach (TelescopeShell s in seg.shells)
{
int startIndex = vertexOffsets[currentElement];
int numTriangles = s.mesh.triangles.Length / 3;
// Write faces
for (int f = 0; f < numTriangles; f++)
{
int v1 = s.mesh.triangles[3 * f + 0] + startIndex;
int v2 = s.mesh.triangles[3 * f + 1] + startIndex;
int v3 = s.mesh.triangles[3 * f + 2] + startIndex;
file.WriteLine("f " + v1 + " " + v2 + " " + v3);
}
currentElement++;
}
}
}
}
public void TICToTelescope()
{
// Create a telescope structure empty object
GameObject structureObj = new GameObject();
structureObj.name = "TelescopingStructure";
TelescopeStructure structure = structureObj.AddComponent <TelescopeStructure>();
structure.transform.parent = transform;
// Create dictionary to record created telescope junctures
Dictionary <DCurveBulb, TelescopeJuncture> bulbDict = new Dictionary <DCurveBulb, TelescopeJuncture>();
// Create all of the junctures, and hash the original abstract intersections to them
foreach (DCurveBulb dcb in tiBulbs)
{
TelescopeJuncture junct = TelescopeJuncture.CreateJuncture(dcb.transform.position, dcb.radius * Mathf.Sqrt(2));
bulbDict.Add(dcb, junct);
structure.junctures.Add(junct);
junct.transform.parent = structure.transform;
}
// Now we need to loop over all telescope segments,
// create the telescopes, and attach them to the correct junctions.
foreach (TorsionImpulseCurve tic in tiCurves)
{
// Set radius to match the radii at endpoints
float startRadius = tic.NumSegments * Constants.WALL_THICKNESS + 0.2f
+ (tic.ArcLength * Constants.TAPER_SLOPE);
TelescopeSegment seg;
// Need to address four cases, corresponding to whether or not
// the segment is connected to a juncture at the beginning and end.
// In this step, we just create telescopes with the appropriate radii.
if (tic.StartJuncture && tic.EndJuncture)
{
if (tic.EndJuncture.radius > tic.StartJuncture.radius)
{
//startRadius = tic.EndJuncture.radius;
startRadius = FindStartRadius(tic.StartJuncture.radius, tic.ArcLength, tic.NumSegments);
seg = tic.MakeTelescope(startRadius, reverse: true);
}
else
{
//startRadius = tic.StartJuncture.radius;
startRadius = FindStartRadius(tic.EndJuncture.radius, tic.ArcLength, tic.NumSegments);
seg = tic.MakeTelescope(startRadius);
}
}
else if (tic.StartJuncture && !tic.EndJuncture)
{
startRadius = tic.StartJuncture.radius;
seg = tic.MakeTelescope(startRadius);
}
else if (!tic.StartJuncture && tic.EndJuncture)
{
startRadius = tic.EndJuncture.radius;
seg = tic.MakeTelescope(startRadius, reverse: true);
}
else
{
seg = tic.MakeTelescope(startRadius);
}
seg.transform.parent = structure.transform;
structure.segments.Add(seg);
seg.ExtendImmediate(1);
// Now we actually connect the telescopes.
// We look up which instantiated telescope object
// the current segment should be connected to.
if (tic.StartJuncture)
{
TelescopeJuncture bulb = bulbDict[tic.StartJuncture];
seg.keepLocalPositionOnStart = true;
seg.SetParent(bulb);
bulb.childSegments.Add(seg);
}
if (tic.EndJuncture)
{
TelescopeJuncture bulb = bulbDict[tic.EndJuncture];
bulb.keepLocalPositionOnStart = true;
bulb.SetParentToSegmentEnd(seg);
}
// Turn off all of the old objects.
foreach (DCurveBulb oldBulb in tiBulbs)
{
oldBulb.gameObject.SetActive(false);
}
foreach (TorsionImpulseCurve oldTc in tiCurves)
{
oldTc.gameObject.SetActive(false);
}
}
ActiveStructure = structure;
stage = CanvasStage.Telescope;
}