/// <summary>
/// Builds a single polygon from the nav mesh
/// </summary>
/// <param name="navmesh">the entire navmesh which contains all polygon data</param>
/// <param name="refId">id of the polygon that is to be drawn</param>
/// <param name="color">Color to make the polygon</param>
/// <param name="verts">List of Verts to add to</param>
/// <param name="colors">List of colors for specific polygons</param>
/// <param name="uvs">List of UVs for the polygons</param>
/// <param name="tris">List of Triangles for the polygons</param>
private void BuildNavMeshPoly(Detour.NavMesh navmesh, long refId, Color color, List<Vector3> verts, List<Color> colors, List<Vector2> uvs, List<int> tris)
{
MeshTile tile = null;
Poly poly = null;
if ((navmesh.GetTileAndPolyByRef(refId, ref tile, ref poly) & Status.Failure) != 0)
return;
long ip = 0;
for (int i = 0; i < tile.Polys.Length; i++)
{
if (poly == tile.Polys[i])
ip = i;
}
if (poly.Type == Detour.AtavismNavTile.PolyTypeOffMeshConnection)
{
// do nothing for now
}
else
{
PolyDetail pd = tile.DetailMeshes[ip];
for (int i = 0; i < pd.TriCount; i++)
{
int t = ((int)pd.TriBase + i) * 4;
for (int j = 0; j < 3; j++)
{
if (tile.DetailTris[t + j] < poly.VertCount)
{
verts.Add(new Vector3(tile.Verts[poly.Verts[tile.DetailTris[t + j]] * 3 + 0], tile.Verts[poly.Verts[tile.DetailTris[t + j]] * 3 + 1], tile.Verts[poly.Verts[tile.DetailTris[t + j]] * 3 + 2]));
}
else
{
verts.Add(
new Vector3(tile.DetailVerts[(pd.VertBase + tile.DetailTris[t + j] - poly.VertCount) * 3 + 0],
tile.DetailVerts[(pd.VertBase + tile.DetailTris[t + j] - poly.VertCount) * 3 + 1],
tile.DetailVerts[(pd.VertBase + tile.DetailTris[t + j] - poly.VertCount) * 3 + 2]));
}
uvs.Add(new Vector2());
colors.Add(color);
tris.Add(tris.Count);
}
}
}
}