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using System.Collections.Generic;
using UnityEngine;
using UnityEngine.XR.ARFoundation;
using UnityEngine.XR.ARSubsystems;
using UnityEngine.InputSystem;
namespace UnityEngine.XR.ARFoundation.Samples
{
public class InputSystem_PlaceOnPlane : MonoBehaviour
{
[SerializeField]
[Tooltip("Instantiates this prefab on a plane at the touch location.")]
GameObject m_PlacedPrefab;
/// <summary>
/// The prefab to instantiate on touch.
/// </summary>
public GameObject placedPrefab
{
get { return m_PlacedPrefab; }
set { m_PlacedPrefab = value; }
}
/// <summary>
/// The object instantiated as a result of a successful raycast intersection with a plane.
/// </summary>
public GameObject spawnedObject { get; private set; }
void Awake()
{
m_RaycastManager = GetComponent<ARRaycastManager>();
}
public void AddObject(InputAction.CallbackContext context)
{
var touchPosition = context.ReadValue<Vector2>();
if (m_RaycastManager.Raycast(touchPosition, s_Hits, TrackableType.PlaneWithinPolygon))
{
// Raycast hits are sorted by distance, so the first one
// will be the closest hit.
var hitPose = s_Hits[0].pose;
if (spawnedObject == null)
{
spawnedObject = Instantiate(m_PlacedPrefab, hitPose.position, hitPose.rotation);
}
else
{
spawnedObject.transform.position = hitPose.position;
}
}
}
static List<ARRaycastHit> s_Hits = new List<ARRaycastHit>();
ARRaycastManager m_RaycastManager;
}
}