Vector3.Angle

Parameters

Description

Returns the angle in degrees between from and to.

The angle returned is always the non reflex angle between the two vectors - ie the smaller of the two possible angles between them and never greater than 180 degrees.

#pragma strict
public class AngleExample extends MonoBehaviour {
	public var target: Transform;
	// almost towards the target
	function Update() {
		var targetDir: Vector3 = target.position - transform.position;
		var angle: float = Vector3.Angle(targetDir, transform.forward);
		if (angle < 5.0f)
			print("close");
	}
}

using UnityEngine;

public class AngleExample : MonoBehaviour
{
    public Transform     target;

    // prints "close" if the z-axis of this transform looks
    // almost towards the target

    void Update()
    {
        Vector3 targetDir = target.position - transform.position;
        float angle = Vector3.Angle(targetDir, transform.forward);

        if (angle < 5.0f)
            print("close");
    }
}