OldBlueWater/BlueWater/Assets/02.Scripts/WaterAndShip/Player.cs

using UnityEngine;
using UnityEngine.InputSystem;

namespace _02.Scripts.WaterAndShip
{
    public class Player : MonoBehaviour
    {
        public float maxSpeed = 10f;
        public float acceleration = 2f;
        public float deceleration = 2f;
        public float turnSpeed = 10f;
        private Rigidbody rb;
        private Vector2 movementInput;

        void Awake()
        {
            rb = GetComponent<Rigidbody>();
        }

        public void OnMove(InputValue value)
        {
            movementInput = value.Get<Vector2>();
        }

        void FixedUpdate()
        {
            // Calculate the desired velocity
            Vector3 desiredVelocity = transform.forward * movementInput.y * maxSpeed;
            
            // If moving forward, use acceleration. Otherwise, use deceleration.
            float speedChange = (movementInput.y != 0 ? acceleration : deceleration) * Time.fixedDeltaTime;
            
            // Adjust the current velocity towards the desired velocity
            rb.velocity = Vector3.MoveTowards(rb.velocity, desiredVelocity, speedChange);

            // Rotate the boat
            float turn = movementInput.x;
            Quaternion turnRotation = Quaternion.Euler(0f, turn * turnSpeed, 0f);
            rb.MoveRotation(rb.rotation * turnRotation);
        }
    }
}