BITFALL/Assets/BITKit/Unity/Scripts/Location/LocationAdditive.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Rendering;

// ReSharper disable InvertIf
namespace BITKit
{
    public class LocationAdditive : MonoBehaviour
    {
        [SerializeField] private bool disabledRotation;
        [SerializeField] private bool disabledPosition;

        [SerializeField] private Vector3 positionWeight=Vector3.one;
        [SerializeField] private Vector3 rotationWeight=Vector3.one;

        public Vector3 GlobalPosition { get; private set; }
        public Vector3 GlobalEuler { get; private set; }
        public Vector3 GlobalRotation { get; private set; }

        private Vector3 currentPosition;
        private Vector3 currentEuler;

        private Vector3 globalPosition;
        private Quaternion globalRotation;

        public void AddPosition(Vector3 value)
        {
            currentPosition += value;
        }

        public void AddEuler(Vector3 value)
        {
            currentEuler += value;
        }

        public void SetGlobalPosition(Vector3 value)
        {
            globalPosition = value;
        }

        public void SetGlobalRotation(Quaternion value)
        {
            globalRotation = value;
        }

        public void LateUpdate()
        {
            currentEuler = Vector3.Scale(currentEuler, rotationWeight);
            currentPosition = Vector3.Scale(currentPosition, positionWeight);
            
            if (disabledRotation is false)
                switch (currentEuler, globalRotation)
                {
                    case var (euler, rotation) when euler.IsDefault() is false && rotation.IsDefault():
                        transform.localRotation = Quaternion.Euler(euler);
                        break;
                    case var (euler, rotation) when euler.IsDefault() && rotation.IsDefault() is false:
                        transform.rotation = globalRotation = rotation;
                        break;
                    case var (euler, rotation) when euler.IsDefault() is false && rotation.IsDefault() is false:
                        transform.rotation = globalRotation = rotation * Quaternion.Euler(euler);
                        break;
                }

            if (disabledPosition is false)
                switch (currentPosition, globalPosition)
                {
                    case var (position, global) when position.IsDefault() is false && global.IsDefault():
                        transform.localPosition = position;
                        break;
                    case var (position, global) when position.IsDefault() && global.IsDefault() is false:
                        transform.position = globalPosition = global;
                        break;
                    case var (position, global) when position.IsDefault() is false && global.IsDefault() is false:
                        transform.position = globalPosition = global + position;
                        break;
                }

            currentEuler = Vector3.zero;
            currentPosition = Vector3.zero;
        }
    }
}