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Assets/Scripts/PositionEtRotationHistorique.cs

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+using System.Collections;
+using UnityEngine;
+
+public class PositionEtRotationHistorique : MonoBehaviour
+{
+    private RectTransform historique;
+    private Transform camera_transform;
+    // Start is called once before the first execution of Update after the MonoBehaviour is created
+    void Start()
+    {
+        historique = GameObject.FindWithTag("HistoriqueMsg").GetComponent<RectTransform>();
+        camera_transform = FindAnyObjectByType<OVRCameraRig>().centerEyeAnchor;
+        StartCoroutine(InitialiserHistorique());
+    }
+
+    private IEnumerator InitialiserHistorique()
+    {
+        // On attend la prochaine image (càd la première image du programme) pour être sûr d'avoir la bonne hauteur.
+        yield return null;
+        float taille_y_historique = historique.sizeDelta.y;
+        float taille_y_a_l_echelle = historique.lossyScale.y;
+        float decalage_vertical_centre = (taille_y_historique / 2.0f) * taille_y_a_l_echelle;
+        float distance = 0.50f;
+        float decalage_droit = 0.30f;
+
+        Vector3 offset = camera_transform.forward * distance +
+                     camera_transform.up * (0.15f - decalage_vertical_centre) +
+                     camera_transform.right * decalage_droit;
+        Vector3 targetPosition = camera_transform.position + offset;
+
+        Vector3 directionCamera = camera_transform.position - targetPosition;
+        directionCamera.y = 0;
+        Quaternion regarderCamera = Quaternion.LookRotation(-directionCamera);
+        historique.transform.SetPositionAndRotation(targetPosition, regarderCamera);
+    }
+}