Check out example codes for "how to get joypad axis input unity". It will help you in understanding the concepts better.

Code Example 1

float moveSpeed = 10;
//Define the speed at which the object moves.

float horizontalInput = Input.GetAxis("Horizontal");
//Get the value of the Horizontal input axis.

float verticalInput = Input.GetAxis("Vertical");
//Get the value of the Vertical input axis.

transform.Translate(new Vector3(horizontalInput, 0, verticalInput) * moveSpeed * Time.deltaTime);
//Move the object to XYZ coordinates defined as horizontalInput, 0, and verticalInput respectively.

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