Version: 2022.3
  • C#


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public static float Atan2(float y, float x);


Returns the angle in radians whose Tan is y/x.

Return value is the angle between the x-axis and a 2D vector starting at zero and terminating at (x,y).

Note: This function takes account of the cases where x is zero and returns the correct angle rather than throwing a division by zero exception.

// Usually you use transform.LookAt for this.
// But this can give you more control over the angle

using UnityEngine; using System.Collections;

public class ExampleClass : MonoBehaviour { public Transform target;

void Update() { Vector3 relative = transform.InverseTransformPoint(target.position); float angle = Mathf.Atan2(relative.x, relative.z) * Mathf.Rad2Deg; transform.Rotate(0, angle, 0); } }