beyond/Assets/ThirdParty/Invector-AIController/Scripts/AI/Examples/vUpdateTargetAngle.cs

using UnityEngine;

namespace Invector.vCharacterController.AI.FSMBehaviour
{

    public class vUpdateTargetAngle : vStateAction
    {
        public override string categoryName
        {
            get { return "Custom Example/"; }
        }

        public override string defaultName
        {
            get { return "Update Target Angle"; }
        }

        public bool setSignedAngle;
        public float dampTime = 0f;
        public string parameterName = "TurnOnSpotDir";

        public override void DoAction(vIFSMBehaviourController fsmBehaviour, vFSMComponentExecutionType executionType = vFSMComponentExecutionType.OnStateUpdate)
        {
            // This custom decision that will verify the bool 'moveToTarget' and return if it's true or false
            Vector3 target = fsmBehaviour.aiController.gameObject.transform.position;

            if (fsmBehaviour.aiController.targetWaypoint)
            {
                target = fsmBehaviour.aiController.targetWaypoint.transform.position;
            }

            if (fsmBehaviour.aiController.currentTarget.transform)
            {
                target = fsmBehaviour.aiController.currentTarget.transform.position;
            }

            Debug.DrawLine(fsmBehaviour.aiController.gameObject.transform.position, target);

            Vector3 targetDir = target - fsmBehaviour.gameObject.transform.position;
            targetDir.y = 0f;
            float angle = Vector3.SignedAngle(targetDir, fsmBehaviour.gameObject.transform.forward, Vector3.up);
            if (setSignedAngle && fsmBehaviour.aiController.animator)
            {
                fsmBehaviour.aiController.animator.SetFloat(parameterName, angle, dampTime, Time.deltaTime);
            }
        }
    }
}