ProjectDDD/Assets/_DDD/_Scripts/CameraSystem/CameraManager.cs

using System.Collections.Generic;
using Sirenix.OdinInspector;
using Unity.Cinemachine;

namespace DDD
{
    public class CameraManager : Singleton<CameraManager>, IManager
    {
        [ShowInInspector, ReadOnly]
        private Dictionary<string, CameraGameObject> _cameraGameObjects;
        
        private CinemachineBrain _cinemachineBrain;
        
        public void Init()
        {
            _cameraGameObjects = new Dictionary<string, CameraGameObject>();
            _cinemachineBrain = GetComponent<CinemachineBrain>();
        }

        public void PostInit()
        {
            
        }

        public void RegisterCamera(CameraGameObject cameraGameObject)
        {
            _cameraGameObjects.TryAdd(cameraGameObject.Id, cameraGameObject);
        }

        public void UnRegisterCamera(CameraGameObject cameraGameObject)
        {
            _cameraGameObjects.Remove(cameraGameObject.Id);
        }
        
        public void SwitchCamera(CameraGameObject cameraGameObject, CinemachineBlendDefinition.Styles blendStyle = CinemachineBlendDefinition.Styles.Cut, float blendDuration = 1f)
        {
            _cinemachineBrain.DefaultBlend = new CinemachineBlendDefinition(blendStyle, blendDuration);
            foreach (var item in _cameraGameObjects)
            {
                int newPriority = item.Value.Id == cameraGameObject.Id ? 10 : 0;
                item.Value.SetPriority(newPriority);
            }
        }
    }
}