/// <summary>
/// Clean up the duplicate edges that share the same MidPos and Instantiate the Edge prefabs.
/// </summary>
/// <param name="edgeColl">Dirty array with edges</param>
/// <returns>Clean array of edges</returns>
public PREdgeHolder[] CreateUniqEdgePrefabs(PREdgeHolder[] edgeColl)
{
// Group the edges according to the MidPos vector. For the cube I will have groups of 2 edges that overlap.
var result = edgeColl.GroupBy(edge => edge.MidPos);
PREdgeHolder[] cleaEdgeColl = new PREdgeHolder[result.Count()];
for (int i = 0; i < result.Count(); i++)
{
// Get only the first elemnt from each group and assign it to the clean array.
cleaEdgeColl[i] = result.ToArray()[i].ToArray()[0];
// Create the objects.
GameObject obj = GameObject.Instantiate(EdgePref, transform.TransformPoint(cleaEdgeColl[i].MidPos),
cleaEdgeColl[i].MidRot, PR_EDGE_GO.transform);
obj.name = "Edge" + i;
obj.SetActive(true);
// Setup the PREdge file
PREdge edgeCO = obj.GetComponent <PREdge>();
edgeCO.EdgeHolder = cleaEdgeColl[i];
}
return(cleaEdgeColl);
}
/// <summary>
/// Generate the EdgeHolders for every Edge in every face. The array has overlaping EdgeHolders.
/// </summary>
/// <returns>Array with overlaping EdgeHolders.</returns>
public virtual PREdgeHolder[] GenerateEdgeHolders()
{
PREdgeHolder[] edgeColl = new PREdgeHolder[GeoMesh.vertexCount];
for (int i = 0; i < GeoMesh.subMeshCount; i++)
{
// Keep track of the actual number of the edge that is being generated,
// If it is the last one - connect the vertex to first one.
if (GeoMesh.GetTopology(i) == MeshTopology.Quads)
{
int index = -1;
for (uint j = GeoMesh.GetIndexStart(i); j < GeoMesh.GetIndexStart(i) + GeoMesh.GetIndexCount(i); j++)
{
index++;
if (index < 3)
{
Vector3 v0 = GeoMesh.vertices[j];
Vector3 v1 = GeoMesh.vertices[j + 1];
PREdgeHolder edge = new PREdgeHolder(v0, v1, this.gameObject);
edge.V0Index = (int)j;
edge.V1Index = (int)j + 1;
edgeColl[j] = edge;
}
else
{
Vector3 v0 = GeoMesh.vertices[j];
Vector3 v1 = GeoMesh.vertices[j - 3];
PREdgeHolder edge = new PREdgeHolder(v0, v1, this.gameObject);
edge.V0Index = (int)j;
edge.V1Index = (int)j - 3;
edgeColl[j] = edge;
}
}
}
else if (GeoMesh.GetTopology(i) == MeshTopology.Triangles)
{
int index = -1;
for (uint j = GeoMesh.GetIndexStart(i); j < GeoMesh.GetIndexStart(i) + GeoMesh.GetIndexCount(i); j++)
{
index++;
if (index < 2)
{
Vector3 v0 = GeoMesh.vertices[j];
Vector3 v1 = GeoMesh.vertices[j + 1];
PREdgeHolder edge = new PREdgeHolder(v0, v1, this.gameObject);
edge.V0Index = (int)j;
edge.V1Index = (int)j + 1;
edgeColl[j] = edge;
}
else
{
Vector3 v0 = GeoMesh.vertices[j];
Vector3 v1 = GeoMesh.vertices[j - 2];
PREdgeHolder edge = new PREdgeHolder(v0, v1, this.gameObject);
edge.V0Index = (int)j;
edge.V1Index = (int)j - 2;
edgeColl[j] = edge;
}
}
}
}
return(edgeColl);
}
