slimecing

a fighting game featuring slimes and swords
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RbRotatable.cs (2401B)

      1 using System;
      2 using UnityEngine;
      3 
      4 namespace Slimecing.SimpleComponents.Movement
      5 {
      6     [RequireComponent(typeof(Rigidbody))]
      7     public class RbRotatable : MonoBehaviour
      8     {
      9         [SerializeField] protected float rotSpeed;
     10         [SerializeField] protected float alignmentDamping;
     11         [SerializeField] private float maxAngularVelocity;
     12 
     13         private bool _slowedAngVel;
     14         private bool _stoppedAngVel;
     15         private Rigidbody rb;
     16 
     17         public bool StoppedAngVel => _stoppedAngVel; 
     18 
     19         private void Awake()
     20         {
     21             rb = GetComponent<Rigidbody>();
     22             rb.maxAngularVelocity = maxAngularVelocity;
     23         }
     24 
     25         public void RotateToVector(Vector3 desiredLookAt)
     26         {
     27             Quaternion targetRotation = Quaternion.LookRotation(desiredLookAt);
     28             
     29             if (Quaternion.Angle(transform.rotation, targetRotation) < 13)
     30             {
     31                 if (!_slowedAngVel)
     32                 {
     33                     SlowAngularVelocity();
     34                 }
     35                 transform.rotation = Quaternion.Slerp(transform.rotation, targetRotation, rotSpeed);
     36                 return;
     37             }
     38 
     39             if (_slowedAngVel)
     40                 _slowedAngVel = false;
     41             if (_stoppedAngVel)
     42                 _stoppedAngVel = false;
     43             
     44             Quaternion deltaRotation = Quaternion.Inverse(transform.rotation) * targetRotation;
     45             Vector3 deltaAngles = GetRelativeAngles(deltaRotation.eulerAngles);
     46             Vector3 spaceDeltaAngles = transform.TransformDirection(deltaAngles);
     47             rb.AddTorque(rotSpeed * spaceDeltaAngles - alignmentDamping * rb.angularVelocity, ForceMode.Impulse);
     48         }
     49 
     50         private Vector3 GetRelativeAngles(Vector3 angles)
     51         {
     52             Vector3 relativeAngles = angles;
     53             if (relativeAngles.x > 180f)
     54                 relativeAngles.x -= 360f;
     55             if (relativeAngles.y > 180f)
     56                 relativeAngles.y -= 360f;
     57             if (relativeAngles.z > 180f)
     58                 relativeAngles.z -= 360f;
     59  
     60             return relativeAngles;
     61         }
     62 
     63         public void SlowAngularVelocity()
     64         {
     65             rb.angularVelocity *= 0.5f;
     66             _slowedAngVel = true;
     67         }
     68 
     69         public void StopAngularVelocity()
     70         {
     71             rb.angularVelocity = Vector3.zero;
     72             _stoppedAngVel = true;
     73         }
     74     
     75     }
     76 }