Camera Rotation Script

Questions & Answers
1

Hey UnityAnswers,

I’m looking for some advice on some code I have. Basically I have 4 cubes, each being a different colour (Red, Blue, Green and Yellow). In the center is an empty gameObject, with the mainCamera parented. When the gameObject rotates, so does the mainCamera. Right now I have input controls to rotate the empty gameObject either left or right, showing each of the cubes.

Here is what my scene looks like just for visualization : Imgur: The magic of the Internet

What I’m trying to get is a smooth curve between 90 degree intervals. I don’t want it to change like a light switch. I’m not a good programmer, but I’m thinking it involves either for loops, time.Deltatime or transform.Rotate. Let know if you can help me out. The code I’m working on is below.

    var goodDegs = 30; // degrees per second
    var badDegs = -30; // degrees per second


function Update () {
	if (Input.GetKeyDown("left")){
		for (var n = 0; n < 90; n++)
		{
			transform.Rotate(0, goodDegs * Time.deltaTime, 0);
		}
	}
	if (Input.GetKeyDown("right")){
		for (var m = 0; m < 90; m++)
		{
			transform.Rotate(0, badDegs * Time.deltaTime, 0);
		}
	}
}

or an older version:

var rotationPositive = 90;
var rotationNegative = -90;


function Update () {
    if (Input.GetKeyDown("left")) 
        {
            transform.Rotate(Time.deltaTime, rotationPositive, 0);

        }
	if (Input.GetKeyDown("right"))
		{
			transform.Rotate(Time.deltaTime, rotationNegative, 0);
			
		}
	}
2

Have a look at this: http://unity3d.com/support/documentation/ScriptReference/Mathf.MoveTowardsAngle.html

You’ll want to set a ‘target rotation degrees’ OnKeyDown, rather than using a for loop. Anything you do in one frame will all happen in that frame, so you need to spread it across frames. Time.deltaTime is your friend.

3

public class swipebutton : MonoBehaviour
{
public Camera cam;

void Update()
{
   
    cam.transform.Rotate(Vector3.up, 20.0f * Time.deltaTime);
}

}