/// <summary>
/// Get the nearest hovered picking targets.
/// </summary>
/// <param name="targets">The game objects to query for picking targets and test for hovered.</param>
/// <param name="screenPosition">The position in camera screen space.</param>
/// <param name="camera">The target camera to use for picking.</param>
/// <param name="maxDistance">The maximum distance for a picking target to be considered hovered.</param>
/// <param name="hit">Returns a single picking hit for the nearest hit.</param>
/// <returns>Returns true if a picking target was within the maxDistance.</returns>
public static bool GetHovered(
IReadOnlyList <GameObject> targets,
Vector2 screenPosition,
Camera camera,
float maxDistance,
out PickingHit hit)
{
if (targets == null)
{
throw new ArgumentNullException(nameof(targets));
}
if (camera == null)
{
throw new ArgumentNullException(nameof(camera));
}
GetPickingTargets(targets, s_TargetsBuffer);
return(GetHovered(s_TargetsBuffer, screenPosition, camera, maxDistance, out hit));
}
/// <summary>
/// Get the nearest hovered picking targets.
/// </summary>
/// <param name="targets">The picking targets to test for hovered.</param>
/// <param name="screenPosition">The position in camera screen space.</param>
/// <param name="camera">The target camera to use for picking.</param>
/// <param name="maxDistance">The maximum distance for a picking target to be considered hovered.</param>
/// <param name="hit">Returns a single picking hit for the nearest hit.</param>
/// <returns>Returns true if a picking target was within the maxDistance.</returns>
public static bool GetHovered(
IReadOnlyList <IPickingTarget> targets,
Vector2 screenPosition,
Camera camera,
float maxDistance,
out PickingHit hit)
{
if (targets == null)
{
throw new ArgumentNullException(nameof(targets));
}
if (camera == null)
{
throw new ArgumentNullException(nameof(camera));
}
if (!GetHoveredAll(targets, screenPosition, camera, maxDistance, s_HitsBuffer))
{
hit = new PickingHit(null, float.MaxValue);
return(false);
}
PickingHit closest = new PickingHit(null, float.MaxValue);
foreach (var h in s_HitsBuffer)
{
if (h.distance < closest.distance)
{
closest = h;
}
}
hit = closest;
return(hit.valid);
}