69 lines
2.8 KiB
C#
69 lines
2.8 KiB
C#
using System;
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using System.Collections.Generic;
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using UnityEngine;
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using UnityEngine.XR.ARFoundation;
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using UnityEngine.XR.ARSubsystems;
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[RequireComponent(typeof(ARTrackedImageManager))]
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public class MarkerTracker : MonoBehaviour
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{
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// Reference to AR tracked image manager component
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private ARTrackedImageManager _trackedImagesManager;
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// List of prefabs to instantiate - these should be named the same
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// as their corresponding 2D images in the reference image library
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public GameObject[] ArPrefabs;
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private readonly Dictionary<string, GameObject> _instantiatedPrefabs = new Dictionary<string, GameObject>();
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// foreach(var trackedImage in eventArgs.added){
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// Get the name of the reference image
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// var imageName = trackedImage.referenceImage.name;
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// foreach (var curPrefab in ArPrefabs) {
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// Check whether this prefab matches the tracked image name, and that
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// the prefab hasn't already been created
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// if (string.Compare(curPrefab.name, imageName, StringComparison.OrdinalIgnoreCase) == 0
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// && !_instantiatedPrefabs.ContainsKey(imageName)){
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// Instantiate the prefab, parenting it to the ARTrackedImage
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// var newPrefab = Instantiate(curPrefab, trackedImage.transform);
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void Awake()
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{
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_trackedImagesManager = GetComponent<ARTrackedImageManager>();
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}
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private void OnEnable()
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{
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_trackedImagesManager.trackedImagesChanged += OnTrackedImagesChanged;
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}
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private void OnDisable()
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{
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_trackedImagesManager.trackedImagesChanged -= OnTrackedImagesChanged;
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}
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private void OnTrackedImagesChanged(ARTrackedImagesChangedEventArgs eventArgs)
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{
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foreach (var trackedImage in eventArgs.updated)
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{
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// var imageName = trackedImage.referenceImage.name;
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//foreach (var curPrefab in AreaEffector2DPrefabs)
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// {
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// if (string.Compare(curPrefab.name, imageName, StringComparison.OrdinalIgnoreCase) == 0
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// && !_instantiatedPrefabs.ContainsKey(imageName))
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// {
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// var newPrefab = Instantiate(curPrefab, trackedImage.transform);
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// _instantiatedPrefabs[imageName] = newPrefab;
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// }
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// }
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// }
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_instantiatedPrefabs[trackedImage.referenceImage.name].SetActive(trackedImage.trackingState == TrackingState.Tracking);
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}
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foreach (var trackedImage in eventArgs.removed) {
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// Destroy its prefab
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Destroy(_instantiatedPrefabs[trackedImage.referenceImage.name]);
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// Also remove the instance from our array
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_instantiatedPrefabs.Remove(trackedImage.referenceImage.name);
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// Or, simply set the prefab instance to inactive
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//_instantiatedPrefabs[trackedImage.referenceImage.name].SetActive(false);
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}
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}
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} |