ichni_Official/Assets/Scripts/Game/GameElements/GameCamera/GameCamera.cs

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using Ichni.RhythmGame.Beatmap;
using Ichni.UI;
using UniRx;
using UnityEngine;
using UnityEngine.Rendering.Universal;
using UnityEngine.Serialization;

namespace Ichni.RhythmGame
{
    public partial class GameCamera : GameElement, IHaveTransformSubmodule, IHaveTimeDurationSubmodule
    {
        [FormerlySerializedAs("camera")] public new Camera gameCamera;
        public Transform rotationPoint;
        public Transform positionPoint;
        public Transform cameraTransform;

        public CameraViewType cameraViewType;
        public float perspectiveAngle;
        public float orthographicSize;

        public float perspectiveOffset;

        public TransformSubmodule transformSubmodule { get; set; }
        public TimeDurationSubmodule timeDurationSubmodule { get; set; }
        private static CameraManager cameraManager => GameManager.instance.cameraManager;

        public static GameCamera GenerateElement(string elementName, Guid id,
            List<string> tags, bool isFirstGenerated, GameElement parentElement,
            CameraViewType cameraViewType, float perspectiveAngle, float orthographicSize)
        {
            GameCamera gameCamera = Instantiate(GameManager.instance.basePrefabs.gameCamera).GetComponent<GameCamera>();

            gameCamera.Initialize(elementName, id, tags, isFirstGenerated, parentElement);

            cameraManager.gameCamera = gameCamera;
            
            gameCamera.parentElement = parentElement;
            gameCamera.cameraViewType = cameraViewType;
            gameCamera.gameCamera.orthographic = cameraViewType == CameraViewType.Orthographic;
            gameCamera.perspectiveAngle = perspectiveAngle;
            gameCamera.orthographicSize = orthographicSize;
            gameCamera.cameraTransform = gameCamera.transform;

            float ratioDifference = UIManager.GetScreenRatio() - UIManager.StandardRatio;
            if (ratioDifference > 0)
            {
                gameCamera.perspectiveOffset = -22f * ratioDifference;
            }
            else
            {
                //gameCamera.perspectiveOffset = 11f * ratioDifference;
            }
            
            gameCamera.gameCamera.fieldOfView = perspectiveAngle + gameCamera.perspectiveOffset;
            return gameCamera;
        }

        public override void AfterInitialize()
        {
            base.AfterInitialize();
            gameCamera.GetComponent<UniversalAdditionalCameraData>().cameraStack.Add(cameraManager.uiCamera);
            GameManager.instance.backgroundController.backgroundCanvas.worldCamera = gameCamera;
        }

        public override void SetDefaultSubmodules()
        {
            transformSubmodule = new TransformSubmodule(this);
        }
    }

    public partial class GameCamera
    {
        public enum CameraViewType
        {
            Perspective = 0,
            Orthographic = 1
        }
    }

    public partial class GameCamera
    {
        public void SetTransformObserver()
        {
            transformSubmodule.observer = Observable.EveryLateUpdate()
                .Where(_=>GameManager.instance.audioManager.isUpdating)
                .Subscribe(_ => UpdateTransform())
                .AddTo(transformSubmodule.attachedGameElement);
        }

        public void UpdateTransform(bool refreshAll = true)
        {
            bool willRefresh = false;

            if (!transformSubmodule.eulerAnglesOffsetLock && transformSubmodule.eulerAnglesDirtyMark)
            {
                transformSubmodule.currentEulerAngles = transformSubmodule.originalEulerAngles + transformSubmodule.eulerAnglesOffset;
                transform.localEulerAngles = transformSubmodule.currentEulerAngles;
                transformSubmodule.eulerAnglesDirtyMark = false;
                willRefresh = true;
                transformSubmodule.eulerAnglesOffset = Vector3.zero;
            }

            if (transformSubmodule.positionDirtyMark)
            {
                transformSubmodule.currentPosition = transformSubmodule.originalPosition + transformSubmodule.positionOffset;
                transform.localPosition = transformSubmodule.currentPosition;
                transformSubmodule.positionDirtyMark = false;
                willRefresh = true;
                transformSubmodule.positionOffset = Vector3.zero;
            }

            if (refreshAll && willRefresh)
            {
                Refresh();
            }
        }
    }

    public partial class GameCamera
    {
        public override void SaveBM()
        {
            matchedBM = new GameCamera_BM(elementName, elementGuid, tags,
                parentElement.matchedBM as GameElement_BM, cameraViewType, perspectiveAngle, orthographicSize);
        }
    }

    namespace Beatmap
    {
        public class GameCamera_BM : GameElement_BM
        {
            public GameCamera.CameraViewType cameraViewType;
            public float perspectiveAngle;
            public float orthographicSize;

            public GameCamera_BM()
            {

            }

            public GameCamera_BM(string elementName, Guid elementGuid, List<string> tags,
                GameElement_BM attachedElement, GameCamera.CameraViewType cameraViewType,
                float perspectiveAngle, float orthographicSize)
                : base(elementName, elementGuid, tags, attachedElement)
            {
                this.cameraViewType = cameraViewType;
                this.perspectiveAngle = perspectiveAngle;
                this.orthographicSize = orthographicSize;
            }

            public override void ExecuteBM()
            {
                matchedElement = GameCamera.GenerateElement(elementName, elementGuid, tags, false,
                    GetElement(attachedElementGuid), cameraViewType, perspectiveAngle, orthographicSize);
            }

            public override GameElement DuplicateBM(GameElement parent)
            {
                return GameCamera.GenerateElement(elementName, Guid.NewGuid(), tags, false,
                    parent, cameraViewType, perspectiveAngle, orthographicSize);
            }
        }
    }
}