ARTapToPlaceObject.cs
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using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using System.IO;
using UnityEngine.XR.ARFoundation;
using UnityEngine.XR.ARSubsystems;
[RequireComponent(typeof(ARRaycastManager))]
public class ARTapToPlaceObject : MonoBehaviour
{
public bool loaded;
public GameObject gameObjectToInstantiate;
private GameObject spawnedObject;
private ARRaycastManager _aRRaycastManager;
private Vector2 touchPosition;
private int _touched;
static List<ARRaycastHit> hits = new List<ARRaycastHit>();
private void Awake()
{
_aRRaycastManager = GetComponent<ARRaycastManager>();
_touched = Input.touchCount;
}
bool TryGetTouchPosition(out Vector2 touchPosition)
{
if (Input.touchCount - _touched == 2)
{
touchPosition = Input.GetTouch(0).position;
return true;
}
touchPosition = default;
return false;
}
// Update is called once per frame
void Update()
{
if (!TryGetTouchPosition(out Vector2 touchPosition))
{
return;
}
if(_aRRaycastManager.Raycast(touchPosition, hits, TrackableType.PlaneWithinPolygon))
{
var hitPose = hits[0].pose;
if(spawnedObject == null)
{
spawnedObject = Instantiate(gameObjectToInstantiate, hitPose.position, hitPose.rotation);
}
else
{
spawnedObject.transform.position = hitPose.position;
}
}
_touched = Input.touchCount;
}
}