Getting the main camera's direction?

Hello, im attempting to make a script so that i can determin what direction the camera is facing but since its a vector is their a way i can transfer that into a bool ? so if the main camera is facing right for example how can i tell ?
- Thanks

 

You can use Vector3.Dot to compare how much two vectors align. If both are unit vectors the resulting value will be within the -1 to 1 range. 1 if they point exactly the same, -1 if opposite and 0 for perpendicular. So if the dot is > 0.9 they are pretty much aligned with some margin for error.
Example:

Code (csharp):

1. if (Vector3.Dot(Camera.main.transform.forward, Vector3.right) > 0.5) Debug.Log("Facing right/east");

 

Ohh i see awesome thanks for the help!

 

Hey ive ran into a small problem and i have no clue how to fix it was wondering if you knew what it is im doing wrong ?
i have added and altered your example code so i can get an output for all sides "left, right, forward, back" but i have ran into a small problem, for some reason their is like a void area where i get no output at all when i make the transition from facing forward to facing down/up? this is my code so far, and ive also made a quick snippit of the problem im running into

Code (CSharp):

1.         if (Vector3.Dot (Camera.main.transform.forward, Vector3.forward) > 0.9) {
2.         //    Debug.Log ("Facing Foward/north");
3.                 p = 2;
4.         }
5.             if (Vector3.Dot (Camera.main.transform.up, Vector3.forward) > 0.9) {
6.                 p = 2;
7.             }
8.  
9.         if (Vector3.Dot (Camera.main.transform.forward, Vector3.back) > 0.9) {
10.         //    Debug.Log ("Facing back/south");
11.                 p = 0;
12.         }
13.             if (Vector3.Dot (Camera.main.transform.up, Vector3.back) > 0.9) {
14.                 p = 0;
15.             }
16.  
17.         if (Vector3.Dot (Camera.main.transform.forward, Vector3.right) > 0.9) {
18.         //        Debug.Log ("Facing right/east");
19.                 p = 1;
20.         }
21.             if (Vector3.Dot (Camera.main.transform.up, Vector3.right) > 0.9) {
22.                 p = 1;
23.             }
24.  
25.         if (Vector3.Dot (Camera.main.transform.forward, Vector3.left) > 0.9) {
26.         //        Debug.Log ("Facing Left/west straight");
27.                 p = 3;
28.         }
29.             if (Vector3.Dot (Camera.main.transform.up, Vector3.left) > 0.9) {
30.                 p = 3;
31.             }

 

It is not quite suitable for this.
With your needed result I'd probably go with something more like this:
(Partial, typing on phone)

Code (csharp):

1.  
2. Vector3 dir = Camera.main.transform.forward;
3. float absX = Mathf.Abs(dir.x);
4. float absY = Mathf.Abs(dir.y);
5. float absZ = Mathf.Abs(dir.z);
6. if(absX > absY && absX > absZ)
7. {
8.     if (absX > 0f) return Right;
9.     else return Left;
10. }
11. else if ()  // repeat for y and z
12.