/// <summary>
/// Retrieve the endpoints of the offmesh connection at the specified polygon
/// </summary>
/// <param name="prevRef">The previous polygon reference</param>
/// <param name="polyRef">The current polygon reference</param>
/// <param name="startPos">The starting position</param>
/// <param name="endPos">The ending position</param>
/// <returns>True if endpoints found, false if not</returns>
public bool GetOffMeshConnectionPolyEndPoints(NavPolyId prevRef, NavPolyId polyRef, ref Vector3 startPos, ref Vector3 endPos)
{
int salt = 0, indexTile = 0, indexPoly = 0;
if (polyRef == NavPolyId.Null)
{
return(false);
}
//get current polygon
idManager.Decode(ref polyRef, out indexPoly, out indexTile, out salt);
if (indexTile >= maxTiles)
{
return(false);
}
if (tileList[indexTile].Salt != salt)
{
return(false);
}
NavTile tile = tileList[indexTile];
if (indexPoly >= tile.PolyCount)
{
return(false);
}
NavPoly poly = tile.Polys[indexPoly];
if (poly.PolyType != NavPolyType.OffMeshConnection)
{
return(false);
}
int idx0 = 0, idx1 = 1;
//find the link that points to the first vertex
foreach (Link link in poly.Links)
{
if (link.Edge == 0)
{
if (link.Reference != prevRef)
{
idx0 = 1;
idx1 = 0;
}
break;
}
}
startPos = tile.Verts[poly.Verts[idx0]];
endPos = tile.Verts[poly.Verts[idx1]];
return(true);
}
/// <summary>
/// Retrieve the tile and poly based off of a polygon reference
/// </summary>
/// <param name="reference">Polygon reference</param>
/// <param name="tile">Resulting tile</param>
/// <param name="poly">Resulting poly</param>
/// <returns>True if tile and poly successfully retrieved</returns>
public bool TryGetTileAndPolyByRef(NavPolyId reference, out NavTile tile, out NavPoly poly)
{
tile = null;
poly = null;
if (reference == NavPolyId.Null)
{
return(false);
}
//Get tile and poly indices
int salt, polyIndex, tileIndex;
idManager.Decode(ref reference, out polyIndex, out tileIndex, out salt);
//Make sure indices are valid
if (tileIndex >= maxTiles)
{
return(false);
}
NavTile foundTile;
if (!tileIndices.TryGetValue(tileIndex, out foundTile))
{
return(false);
}
if (foundTile.Salt != salt)
{
return(false);
}
if (polyIndex >= foundTile.PolyCount)
{
return(false);
}
//Retrieve tile and poly
tile = tileIndices[tileIndex];
poly = tileIndices[tileIndex].Polys[polyIndex];
return(true);
}