Fix id of sensors

Author: Léna Voinchet

js/scene/objects/SceneObjects.js

@@ -31,8 +31,6 @@ class SceneObjects{
         this.nodeMeshes = [];
         this.lidarsMeshes = [];
         this.dummiesMeshes = [];
-        this.numberOfNodesCreated = 0;
-        this.numberOfLidarsCreated = 0;
 
         const givenAreaPolygonRegions = [[]];
 
@@ -158,8 +156,16 @@ class SceneObjects{
                 console.log("Add Node button will work in an instant");
                 return;
             }
-            const newCamera = new Node(this.numberOfNodesCreated, mode, typeID, x, y, z, p, a, r);
-            this.numberOfNodesCreated++;
+
+            let idOfNode = 0;
+
+            // Method .some() returns true if AT LEAST one element of the array passes the test
+            while (nodes.some(node => node.id === idOfNode)) {
+                idOfNode++;
+            }
+
+            const newCamera = new Node(idOfNode, mode, typeID, x, y, z, p, a, r);
+
             if(!isBuilder) newCamera.uiElement = new NodeUI(newCamera, sceneManager);
 
             //Offset
@@ -276,8 +282,16 @@ class SceneObjects{
                 console.log("Add Lidar button will work in an instant");
                 return;
             }
-            const newLidar = new Lidar(this.numberOfLidarsCreated, sizeDetected, typeID, x, z, r);
-            this.numberOfLidarsCreated++;
+
+            let idOfLidar = 0;
+
+            // Method .some() returns true if AT LEAST one element of the array passes the test
+            while (lidars.some(lidar => lidar.id === idOfLidar)) {
+                idOfLidar++; 
+            }
+
+            const newLidar = new Lidar(idOfLidar, sizeDetected, typeID, x, z, r);
+
             if(!isBuilder) newLidar.uiElement = new LidarUI(newLidar, sceneManager);
 
             // Offset