public static List <int> CreateTrianglesClock(IList <int> indices)
{
Debug.Assert(indices.Count % 2 == 0);
List <int> rets = new List <int>();
var n = indices.Count;
for (var i = 0; i < n / 2; i++)
{
var id1 = indices[i + 0];
var id2 = indices[i + 1];
var id3 = indices[n - 1 - (i + 1)];
var id4 = indices[n - 1 - (i + 0)];
MeshUtils.AddQuad(rets, id1, id2, id3, id4);
}
return(rets);
}
public static List <int> CreateSpiderWebTriangles(List <Vector3> vectors, Vector3 center, List <Vector3> predicts, int offset)
{
List <int> ret = new List <int>();
if (predicts.Count != vectors.Count)
{
Debug.LogError("predict is not equal vectors");
return(null);
}
int count = vectors.Count;
int tailID = count * 2;
for (int i = 0; i < count; i++)
{
//内圈的点，蜘蛛网缝
int idx1 = i;
int idx2 = (i + 1) % count;
int idx3 = tailID;
ret.Add(offset + idx1);
ret.Add(offset + idx2);
ret.Add(offset + idx3);
}
//外圈的点
for (int i = 0; i < count; i++)
{
int idx1 = i + count;
int idx2 = (i + count + 1) % (count * 2) == 0 ? count : (i + count + 1);
int idx3 = i % count;
int idx4 = (i + 1) % count;
MeshUtils.AddQuad(ret, offset + idx1, offset + idx2, offset + idx4, offset + idx3);
}
return(ret);
}
