/// <summary>
/// Builds a Single polygon out of the NavMesh, called by BuildNavMeshGeometry
/// </summary>
/// <param name="refId"></param>
/// <param name="color"></param>
/// <param name="verts"></param>
/// <param name="colors"></param>
/// <param name="uvs"></param>
/// <param name="tris"></param>
private void BuildNavMeshPoly(long refId, Color color, List<Vector3> verts, List<Color> colors, List<Vector2> uvs, List<int> tris, RecastNavTile navTile)
{
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)
{
}
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)
{
Vector3 newVerts = 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]);
verts.Add(newVerts);
navTile.NavMeshVerts.Add(newVerts);
}
else
{
Vector3 newVerts = 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]);
verts.Add(newVerts);
navTile.NavMeshVerts.Add(newVerts);
}
uvs.Add(new Vector2());
navTile.NavMeshUVs.Add(new Vector2());
colors.Add(color);//duIntToCol((int)ip, 192));
navTile.NavMeshColors.Add(color);
tris.Add(tris.Count);
navTile.NavMeshTriangles.Add(navTile.NavMeshTriangles.Count);
}
}
}
}
/// <summary>
/// Builds the NavMesh geometry into a Unity3d Mesh to display for debug
/// </summary>
public void BuildNavMeshGeometry()
{
foreach(RecastNavTile navTile in recastNavTiles) {
DestroyImmediate(navTile.MeshObject);
}
recastNavTiles.Clear();
if (NavMesh != null)
{
NavMeshTriangles = new List<int>();
NavMeshVerts = new List<Vector3>();
NavMeshUVs = new List<Vector2>();
NavMeshColors = new List<Color>();
for (int i = 0; i < NavMesh.GetMaxTiles(); i++)
{
MeshTile tile = NavMesh.GetTile(i);
if (tile.Header == null)
continue;
RecastNavTile navTile = new RecastNavTile();
long baseId = NavMesh.GetPolyRefBase(tile);
for (int j = 0; j < tile.Header.PolyCount; j++)
{
BuildNavMeshPoly(baseId | (uint)j, duRGBA(0, 0, 64, 128), NavMeshVerts, NavMeshColors, NavMeshUVs, NavMeshTriangles, navTile);
}
navTile.x = tile.Header.X;
navTile.y = tile.Header.Y;
navTile.builder = tile.Data;
recastNavTiles.Add(navTile);
}
}
}
