/// <summary>
/// Polls for the result of pending ray cast requests.
/// </summary>
protected override void Update()
{
try
{
if (_instance.pendingQueries.Count > 0)
{
foreach (ulong handle in _instance.pendingQueries.Keys)
{
NativeBindings.MLRaycastResultNative raycastResult = NativeBindings.MLRaycastResultNative.Create();
MLResult.Code resultCode = NativeBindings.MLRaycastGetResult(_instance.trackerHandle, handle, ref raycastResult);
if (resultCode == MLResult.Code.Ok)
{
_instance.completedQueries.Add(handle, raycastResult);
}
else if (resultCode != MLResult.Code.Pending)
{
MLPluginLog.ErrorFormat("MLRaycast.Update failed to get raycast result. Reason: {0}", MLResult.CodeToString(resultCode));
_instance.errorQueries.Add(handle);
}
}
foreach (ulong handle in _instance.errorQueries)
{
_instance.pendingQueries.Remove(handle);
}
_instance.errorQueries.Clear();
foreach (KeyValuePair <ulong, NativeBindings.MLRaycastResultNative> handle in _instance.completedQueries)
{
// Check if there is a valid hit result.
bool didHit = handle.Value.State != ResultState.RequestFailed && handle.Value.State != ResultState.NoCollision;
_instance.pendingQueries[handle.Key](
handle.Value.State,
didHit ? MLConvert.ToUnity(handle.Value.Hitpoint) : Vector3.zero,
didHit ? MLConvert.ToUnity(handle.Value.Normal, true, false) : Vector3.zero,
handle.Value.Confidence);
_instance.pendingQueries.Remove(handle.Key);
}
_instance.completedQueries.Clear();
}
}
catch (System.EntryPointNotFoundException)
{
MLPluginLog.Error("MLRaycast.Update failed. Reason: API symbols not found");
}
}
/// <summary>
/// Requests a ray cast with the given query parameters.
/// </summary>
/// <param name="query">Query parameters describing ray being cast.</param>
/// <param name="callback">Delegate which will be called when the result of the ray cast is ready.</param>
/// <returns>
/// MLResult.Result will be <c>MLResult.Code.Ok</c> if successful.
/// MLResult.Result will be <c>MLResult.Code.InvalidParam</c> if failed due to invalid input parameter.
/// MLResult.Result will be <c>MLResult.Code.UnspecifiedFailure</c> if failed due to internal error.
/// </returns>
public static MLResult Raycast(QueryParams query, OnRaycastResultDelegate callback)
{
try
{
if (MLRaycast.IsValidInstance())
{
if (query == null || callback == null)
{
MLPluginLog.ErrorFormat("MLRaycast.Raycast failed. Reason: Invalid input parameters.");
return(MLResult.Create(MLResult.Code.InvalidParam));
}
bool RequestRaycast()
{
if (MLRaycast.IsValidInstance())
{
NativeBindings.MLRaycastQueryNative queryNative = new NativeBindings.MLRaycastQueryNative()
{
Position = MLConvert.FromUnity(query.Position),
Direction = MLConvert.FromUnity(query.Direction, true, false),
UpVector = MLConvert.FromUnity(query.UpVector, true, false),
Width = query.Width,
Height = query.Height,
HorizontalFovDegrees = query.HorizontalFovDegrees,
CollideWithUnobserved = query.CollideWithUnobserved,
};
ulong requestHandle = MagicLeapNativeBindings.InvalidHandle;
MLResult.Code resultCode = NativeBindings.MLRaycastRequest(_instance.trackerHandle, ref queryNative, ref requestHandle);
if (resultCode != MLResult.Code.Ok)
{
MLPluginLog.ErrorFormat("MLRaycast.Raycast failed to request a new ray cast. Reason: {0}", MLResult.CodeToString(resultCode));
return(true);
}
if (requestHandle == MagicLeapNativeBindings.InvalidHandle)
{
MLPluginLog.Error("MLRaycast.Raycast failed to request a new ray cast. Reason: Request handle is invalid.");
return(true);
}
bool GetRaycastResults()
{
if (MLRaycast.IsValidInstance())
{
NativeBindings.MLRaycastResultNative raycastResult = NativeBindings.MLRaycastResultNative.Create();
resultCode = NativeBindings.MLRaycastGetResult(_instance.trackerHandle, requestHandle, ref raycastResult);
if (resultCode == MLResult.Code.Pending)
{
return(false);
}
if (resultCode == MLResult.Code.Ok)
{
// Check if there is a valid hit result.
bool didHit = raycastResult.State != ResultState.RequestFailed && raycastResult.State != ResultState.NoCollision;
MLThreadDispatch.ScheduleMain(() =>
{
if (MLRaycast.IsValidInstance())
{
callback(
raycastResult.State,
didHit ? MLConvert.ToUnity(raycastResult.Hitpoint) : Vector3.zero,
didHit ? MLConvert.ToUnity(raycastResult.Normal, true, false) : Vector3.zero,
raycastResult.Confidence);
}
else
{
MLPluginLog.ErrorFormat("MLRaycast.Raycast failed. Reason: No Instance for MLRaycast");
}
});
}
else
{
MLPluginLog.ErrorFormat("MLRaycast.Raycast failed to get raycast result. Reason: {0}", MLResult.CodeToString(resultCode));
}
}
else
{
MLPluginLog.ErrorFormat("MLRaycast.Raycast failed. Reason: No Instance for MLRaycast");
}
return(true);
}
MLThreadDispatch.ScheduleWork(GetRaycastResults);
}
else
{
MLPluginLog.ErrorFormat("MLRaycast.Raycast failed. Reason: No Instance for MLRaycast");
}
return(true);
}
MLThreadDispatch.ScheduleWork(RequestRaycast);
return(MLResult.Create(MLResult.Code.Ok));
}
else
{
MLPluginLog.ErrorFormat("MLRaycast.Raycast failed. Reason: No Instance for MLRaycast");
return(MLResult.Create(MLResult.Code.UnspecifiedFailure, "MLRaycast.Raycast failed. Reason: No Instance for MLRaycast"));
}
}
catch (System.EntryPointNotFoundException)
{
MLPluginLog.Error("MLRaycast.Raycast failed. Reason: API symbols not found");
return(MLResult.Create(MLResult.Code.UnspecifiedFailure, "MLRaycast.Raycast failed. Reason: API symbols not found"));
}
}
