Question by baleadapp · May 07, 2020 at 09:33 AM · rotation eulerangles angles z-axis

Continuously rotating by 90 doesn't get me the initial angle

I have a game object rotating 90 degrees every tow seconds, making the object to have 4 possible values for its Z rotation. Since the initial Z rotation is 45, the other values would be 135, 225, and 315. Every time the game object rotates, it looks for its current Z rotation in a Dictionary:

 static public Dictionary<int, string> rotDirection = new Dictionary<int, string>{
         {45, "NE"},
         {135, "SE"},
         {225, "SW"},
         {315, "NW"},
     };

How ever, it's not finding the initial value (45) since what it gets in the rotation is actually 44. Why is this happening?

 float timer;
     void FixedUpdate()
     {
         timer -= Time.deltaTime;
         if (timer <= 0.0f)
         {
             timer += Constants.cannonRotationTime;
 
             //transform's initial (z) rotation is 45
             transform.Rotate(0.0f, 0.0f, 90);
             int angle = (int)transform.rotation.eulerAngles.z;
             Debug.Log("Angle: " + angle + ", direction: " +
             (Constants.rotDirection.ContainsKey(angle) ?
                 Constants.rotDirection[angle] : "*NOT FOUND*"));
         }

There is another odd thing. If I set the initial (Z) rotation of the game object to 135 all the values are found, it rotates to 45 instead of 44: alt text