/// <inheritdoc/>
public override IEnumerable <Vector3> GetVertices(IExplicitShape <int> shape, GridMap <int> map)
{
return(shape
.Points
.SelectMany(p => vertices[GridPoint1.GetColor(p, colorFunction1)]
.Select(q => map.GridToWorld(q + map.DeRound(p)))));
}
/// <inheritdoc/>
public override IEnumerable <Vector3> GetNormals(IExplicitShape <int> shape, GridMap <int> map, bool flip)
{
return(shape
.Points
.SelectMany(p => vertices[GridPoint1.GetColor(p, colorFunction1)]
.Select((q, i) => map.GridToWorld(q + map.DeRound(p) + (flip ? -normals[GridPoint1.GetColor(p, colorFunction1)][i] : normals[GridPoint1.GetColor(p, colorFunction1)][i])).normalized)));
}
private IEnumerable <int> GetTrianglesNormal(IExplicitShape <int> shape)
{
var points = shape.Points.ToArray();
var triangleOffsets = new int[shape.Points.Count()];
triangleOffsets[0] = 0;
for (int i = 1; i < triangleOffsets.Length; i++)
{
triangleOffsets[i] = triangleOffsets[i - 1] + vertices[GridPoint1.GetColor(points[i - 1], colorFunction1)].Count;
}
return(shape
.Points
.SelectMany((p, i) => triangles[GridPoint1.GetColor(p, colorFunction1)]
.Select(t => t + triangleOffsets[i])));
}
private IEnumerable <int> GetTrianglesFlipped(IExplicitShape <int> shape)
{
var flippedTriangles = new IntArray[triangles.Length];
for (int j = 0; j < triangles.Length; j++)
{
flippedTriangles[j] = new IntArray()
{
data = triangles[j].ToList()
};
for (int i = 0; i < triangles[j].Count; i += 3)
{
flippedTriangles[j][i] = triangles[j][i + 1];
flippedTriangles[j][i + 1] = triangles[j][i];
flippedTriangles[j][i + 2] = triangles[j][i + 2];
}
}
return(shape
.Points
.SelectMany((p, i) => flippedTriangles[GridPoint1.GetColor(p, colorFunction1)]
.Select(t => t + i * vertices.Length)));
}
/// <inheritdoc/>
public override IEnumerable <Vector2> GetUVs(IExplicitShape <int> shape)
{
return(shape.Points.SelectMany(p => uvs[GridPoint1.GetColor(p, colorFunction1)]));
}