Ways to Unity 4: keyboard bindings for movements

Check your input system for a little bit

You just have to go to the Edit -> Project Settings -> Input Manager -> Axis.
Give it a look.
Done.

Let’s move our object with direction keys

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

public class PlayerController : MonoBehaviour
{
    public float speed = 10.0f;
    public float turnSpeed = 2f;
    public float forwardInput;
    public float horizontalInput;

    // Start is called before the first frame update
    void Start()
    {

    }

    // Update is called once per frame
    void Update()
    {
        forwardInput = Input.GetAxis("Vertical");
        transform.Translate(Vector3.forward * Time.deltaTime * speed * forwardInput);

        horizontalInput = Input.GetAxis("Horizontal");
        transform.Translate(Vector3.right * Time.deltaTime * turnSpeed * horizontalInput);
    }
}

Time.deltaTime is the time difference between each frame of our game. The unit of it is second. We use it to simulate the real-world changes, to make our game more realistic.
Here is someone else’s explanation:

deltaTime is the time in seconds that has passed since the last frame. So say you want an object to move 100 pixels(meters) in 1 second. You can determine the distance by multiplying 100 by the deltaTime.

Improve it with rotation

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

public class PlayerController : MonoBehaviour
{
    private float speed = 10.0f;
    private float turnSpeed = 40f;
    private float forwardInput;
    private float horizontalInput;

    // Start is called before the first frame update
    void Start()
    {

    }

    // Update is called once per frame
    void Update()
    {
        forwardInput = Input.GetAxis("Vertical");
        transform.Translate(Vector3.forward * Time.deltaTime * speed * forwardInput);

        horizontalInput = Input.GetAxis("Horizontal");
        //transform.Translate(Vector3.right * Time.deltaTime * turnSpeed * horizontalInput);
        transform.Rotate(Vector3.up, Time.deltaTime * turnSpeed * horizontalInput);
    }
}

Author 

https://
ying
shaoxo.blogspot.com/2020/11/ways-to-unity-4-keyboard-bindings-for.html

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