/// <summary>
/// Attempts to search this grid for a path between the start and end points.
/// </summary>
/// <param name="start">The <see cref="Index"/> into the search space representing the start position</param>
/// <param name="end">The <see cref="Index"/> into the search space representing the end position</param>
/// <param name="diagonal">The diagonal mode used when finding paths</param>
/// <param name="callback">The <see cref="PathRequestDelegate"/> method to call whe the algorithm has completed</param>
public void findPath(Index start, Index end, DiagonalMode diagonal, PathRequestDelegate callback)
{
// Make sure the grid is ready
if (verifyReady() == false)
{
callback(null, PathRequestStatus.GridNotReady);
return;
}
// Update max path length
searchGrid.maxPathLength = maxPathLength;
// Get the threading value
bool useThreading = allowThreading;
#if UNITY_WEBGL
// Threading is not allowed on web gl platform
useThreading = false;
#endif
// Check if threading is enabled
if (useThreading == true)
{
// Create a request
AsyncPathRequest request = new AsyncPathRequest(searchGrid, start, end, diagonal, (Path path, PathRequestStatus status) =>
{
#if UNITY_EDITOR
// Pass the path for rendering before it is used by the caller otherwise nodes may be removed from the path
PathView.setRenderPath(this, path);
#endif
// Invoke callback
callback(path, status);
});
// Dispatch the request
ThreadManager.Active.asyncRequest(request);
}
else
{
PathRequestStatus status;
// Run the task immediatley
Path result = findPathImmediate(start, end, out status, diagonal);
#if UNITY_EDITOR
// Pass the path for rendering before it is used by the caller otherwise nodes may be removed
PathView.setRenderPath(this, result);
#endif
// Trigger callback
callback(result, status);
}
}
// Constructor
public AsyncPathResult(AsyncPathRequest request, Path result, PathRequestStatus status)
{
this.request = request;
this.result = result;
this.status = status;
}
