Select objects close together progressively (+ and -)

Here again for an easy question ...or not?

I find myself creating a new test with rotation and object selection. Here the image of test:



I've build a Array for N gameObject.

Code (CSharp):

1. public GameObject[] cylinder;

I move the rotation of gameobject with keys W and S. It's very simple and I managed to create it this way (for positive and negative rotation):

Code (CSharp):

1.  
2. if (Input.GetKeyUp(KeyCode.W)) // here change the key in S
3.         {
4.             foreach (GameObject w in cylinder)
5.             {
6.                 if (w.gameObject == Selection.activeObject)
7.                 {
8.                     w.transform.Rotate(0, 0, -36); //here change the value in 36 for positive ecc..
9.                 }
10.             }
11.         }

Now with the keys A and S I would like select objects (right or left) for the entire length of the array. Reading the Unity help I found it useful to use "Selection.activeGameObject (using UnityEditor)" but I can't read the entire length of the array. If I use...

Code (CSharp):

1.  
2. if (Input.GetKeyDown(KeyCode.A))
3.         {
4.             for (int i = 0; i < cylinder.Length; i++)
5.             {
6.                 if (cylinder[i].gameObject != Selection.activeObject)
7.                 {
8.                     Selection.activeGameObject = cylinder[i].gameObject;
9.                     return;
10.                 }
11.             }
12.          }
13.  

I know how I can select the second item and then return to the first one (obviously). Basically I wrapped myself in this little problem ... How to proceed? Ideas? Tips?

Thanks for any help!

 

If this is for in-game code, you shouldn't use UnityEditor classes. They won't even compile when you go to build your standalone game.

It looks like you're just trying to move to the next/previous cylinder, you should just have an int representing the current index of the selected cylinder.

Code (csharp):

1.  
2. int selectedCylinder = 0;
3. void Update() {
4. ...
5. if (Input.GetKeyDown(KeyCode.A)) selectedCylinder--;
6. if (Input.GetKeyDown(KeyCode.D)) selectedCylinder++;
7. //loop around from left to right and vice versa
8. selectedCylinder = (selectedCylinder + cylinder.Length) % cylinder.Length;
9. ...
10. cylinder[selectedCylinder].transform.Rotate(0,0,-36);
11. }

 

Thanks for the advice about the editor and tip StarManta!!!. I'll try it soon and let you know

Thanks Again!

 

Ok, the tip of StarManta work very well

I have implemented the script in such a way that the selection of the object of the first element and the last of the array stops. Below the total script...

Code (CSharp):

1. public class HandRotateCylinder : MonoBehaviour
2. {
3.  
4.     public GameObject[] cylinder;
5.     int selectedCylinder = 1;
6.  
7.     bool disableKeyA = false;
8.     bool disableKeyD = false;
9.  
10.     private void Update()
11.     {
12.  
13.         if (Input.GetKeyUp(KeyCode.W))
14.         {
15.             cylinder[selectedCylinder].transform.Rotate(0, 0, -36);
16.         }
17.  
18.         if (Input.GetKeyDown(KeyCode.S))
19.         {
20.             cylinder[selectedCylinder].transform.Rotate(0, 0, 36);
21.         }
22.  
23.         selectedCylinder = (selectedCylinder + cylinder.Length) % cylinder.Length;
24.        
25.         if (Input.GetKeyDown(KeyCode.A) && disableKeyA == false)
26.         {
27.             disableKeyD = false;
28.  
29.             var lastItem = (cylinder.Length -1);
30.  
31.             selectedCylinder++;
32.  
33.             if (selectedCylinder == lastItem)
34.             {
35.                 disableKeyA = true;
36.             }
37.         }
38.  
39.  
40.         if (Input.GetKeyDown(KeyCode.D) && disableKeyD == false)
41.         {
42.             disableKeyA = false;
43.  
44.             var firstItem = cylinder.GetLowerBound(0);
45.  
46.             selectedCylinder--;
47.  
48.             if (selectedCylinder == firstItem)
49.             {
50.                 disableKeyD = true;
51.             }
52.  
53.         }
54.     }
55. }

One thing doesn't happen. If the value of the array is zero or the last and the relative A & D keys are pressed, they are not disabled, but only subsequently. I created the condition but it is read later, why does this happen? (trivial question for you but not for me since I am a noob ...)

P.S: Now I only have to highlight the selected objects and I have also finished this test

Thanks!