internal void SetTexturesCoincident(IEnumerable <int> vertices)
{
var lookup = sharedTextureLookup;
SharedVertex.SetCoincident(ref lookup, vertices);
SetSharedTextures(lookup);
}
void GeometryWithPoints(Vector3[] points)
{
// Wrap in faces
Face[] f = new Face[points.Length / 4];
for (int i = 0; i < points.Length; i += 4)
{
f[i / 4] = new Face(new int[6]
{
i + 0, i + 1, i + 2,
i + 1, i + 3, i + 2
},
0,
AutoUnwrapSettings.tile,
0,
-1,
-1,
false);
}
Clear();
positions = points;
m_Faces = f;
m_SharedVertices = SharedVertex.GetSharedVerticesWithPositions(points);
InvalidateSharedVertexLookup();
ToMesh();
Refresh();
}
internal void SetSharedTextures(IEnumerable<KeyValuePair<int, int>> indexes)
{
if (indexes == null)
throw new ArgumentNullException("indexes");
m_SharedTextures = SharedVertex.ToSharedVertices(indexes);
InvalidateSharedTextureLookup();
}
/// <summary>
/// Sets the passed vertices as being considered coincident by the ProBuilderMesh.
/// </summary>
/// <remarks>
/// Note that it is up to the caller to ensure that the passed vertices are indeed sharing a position.
/// </remarks>
/// <param name="vertices">Returns a list of vertices to be associated as coincident.</param>
public void SetVerticesCoincident(IEnumerable <int> vertices)
{
var lookup = sharedVertexLookup;
List <int> coincident = new List <int>();
GetCoincidentVertices(vertices, coincident);
SharedVertex.SetCoincident(ref lookup, coincident);
SetSharedVertices(lookup);
}
/// <summary>
/// Copy constructor.
/// </summary>
/// <param name="sharedVertex">The array to copy.</param>
public SharedVertex(SharedVertex sharedVertex)
{
if (sharedVertex == null)
{
throw new ArgumentNullException("sharedVertex");
}
m_Vertices = new int[sharedVertex.Count];
Array.Copy(sharedVertex.m_Vertices, m_Vertices, m_Vertices.Length);
}
internal void AddSharedVertex(SharedVertex vertex)
{
if (vertex == null)
{
throw new ArgumentNullException("vertex");
}
m_SharedVertices = m_SharedVertices.Add(vertex);
InvalidateSharedVertexLookup();
}
static SharedVertex[] ToSharedVertices(List <List <int> > list)
{
if (list == null)
{
throw new ArgumentNullException("list");
}
SharedVertex[] arr = new SharedVertex[list.Count];
for (int i = 0; i < arr.Length; i++)
{
arr[i] = new SharedVertex(list[i]);
}
return(arr);
}
/// <summary>
/// Clear all mesh attributes and reinitialize with new positions and face collections.
/// </summary>
/// <param name="vertices">Vertex positions array.</param>
/// <param name="faces">Faces array.</param>
public void RebuildWithPositionsAndFaces(IEnumerable <Vector3> vertices, IEnumerable <Face> faces)
{
if (vertices == null)
{
throw new ArgumentNullException("vertices");
}
Clear();
m_Positions = vertices.ToArray();
m_Faces = faces.ToArray();
m_SharedVertices = SharedVertex.GetSharedVerticesWithPositions(m_Positions);
InvalidateSharedVertexLookup();
InvalidateSharedTextureLookup();
ToMesh();
Refresh();
}
/// <summary>
/// Reset all the attribute arrays on this object.
/// </summary>
public void Clear()
{
// various editor tools expect faces & vertices to always be valid.
// ideally we'd null everything here, but that would break a lot of existing code.
m_Faces = new Face[0];
m_Positions = new Vector3[0];
m_Textures0 = new Vector2[0];
m_Textures2 = null;
m_Textures3 = null;
m_Tangents = null;
m_SharedVertices = new SharedVertex[0];
m_SharedTextures = new SharedVertex[0];
InvalidateSharedVertexLookup();
InvalidateSharedTextureLookup();
m_Colors = null;
ClearSelection();
}
/// <summary>
/// Create a new array of SharedVertex objects by comparing points in the passed positions collection.
/// </summary>
/// <example>
/// ```
/// <![CDATA[var mesh = gameObject.AdComponent<ProBuilderMesh>();]]>
/// mesh.SetPositions(myNewPositions);
/// mesh.SetFaces(myNewFaces);
/// mesh.SetSharedIndexes(SharedVertex.GetSharedVerticesWithPositions(myNewPositions));
/// ```
/// </example>
/// <param name="positions">A collection of Vector3 positions to be tested for equality.</param>
/// <returns>A new SharedVertex[] where each SharedIndex is a list of indexes that are sharing the same position.</returns>
public static SharedVertex[] GetSharedVerticesWithPositions(IList <Vector3> positions)
{
if (positions == null)
{
throw new ArgumentNullException("positions");
}
Dictionary <IntVec3, List <int> > sorted = new Dictionary <IntVec3, List <int> >();
for (int i = 0; i < positions.Count; i++)
{
List <int> ind;
if (sorted.TryGetValue(positions[i], out ind))
{
ind.Add(i);
}
else
{
sorted.Add(new IntVec3(positions[i]), new List <int>()
{
i
});
}
}
SharedVertex[] share = new SharedVertex[sorted.Count];
int t = 0;
foreach (KeyValuePair <IntVec3, List <int> > kvp in sorted)
{
share[t++] = new SharedVertex(kvp.Value.ToArray());
}
return(share);
}
