public static void OnDrawGizmos(this NavmeshBase navmeshBase, Pathfinding.Util.RetainedGizmos gizmos, bool drawNodes)
{
if (!drawNodes)
{
return;
}
using (var helper = gizmos.GetSingleFrameGizmoHelper()) {
var bounds = new Bounds();
bounds.SetMinMax(Vector3.zero, navmeshBase.forcedBoundsSize);
// Draw a write cube using the latest transform
// (this makes the bounds update immediately if some field is changed in the editor)
helper.builder.DrawWireCube(navmeshBase.CalculateTransform(), bounds, Color.white);
}
if (navmeshBase.tiles != null)
{
// Update navmesh vizualizations for
// the tiles that have been changed
for (int i = 0; i < navmeshBase.tiles.Length; i++)
{
// This may happen if an exception has been thrown when the graph was scanned.
// We don't want the gizmo code to start to throw exceptions as well then as
// that would obscure the actual source of the error.
if (navmeshBase.tiles[i] == null)
{
continue;
}
// Calculate a hash of the tile
var hasher = new RetainedGizmos.Hasher(AstarPath.active);
hasher.AddHash(navmeshBase.showMeshOutline ? 1 : 0);
hasher.AddHash(navmeshBase.showMeshSurface ? 1 : 0);
hasher.AddHash(navmeshBase.showNodeConnections ? 1 : 0);
var nodes = navmeshBase.tiles[i].nodes;
for (int j = 0; j < nodes.Length; j++)
{
hasher.HashNode(nodes[j]);
}
if (!gizmos.Draw(hasher))
{
using (var helper = gizmos.GetGizmoHelper(hasher)) {
if (navmeshBase.showMeshSurface || navmeshBase.showMeshOutline)
{
navmeshBase.CreateNavmeshSurfaceVisualization(navmeshBase.tiles[i], helper);
}
if (navmeshBase.showMeshSurface || navmeshBase.showMeshOutline)
{
CreateNavmeshOutlineVisualization(navmeshBase.tiles[i], helper);
}
if (navmeshBase.showNodeConnections)
{
for (int j = 0; j < nodes.Length; j++)
{
helper.DrawConnections(nodes[j]);
}
}
}
}
gizmos.Draw(hasher);
}
}
if (AstarPath.active.showUnwalkableNodes)
{
navmeshBase.DrawUnwalkableNodes(AstarPath.active.unwalkableNodeDebugSize);
}
}
