Unity2D Top-Down Simple Shooting Script C#

It's not really clear what you're asking for here. If you want someone to write the script for you, this isn't the place to ask, but if you have some code that you need help with, you should post it. It might help to take a look at the FAQ.

Yeah since my question I've worked on the script for the character to look at the mouse position while the player is turning or just moving, but it's not working at the moment.

public class Player$$anonymous$$ovement2 : $$anonymous$$onoBehaviour {

 public float speed;  


 private Camera cam;
 private Transform tran;
 private Quaternion targetRotation;

 Rigidbody2D rbody;  


 void Awake () { 
     rbody = GetComponent<Rigidbody2D> (); 
     
 }

 void Update () { 
     Control$$anonymous$$ouse ();    

 }

 void Control$$anonymous$$ouse() { 
     Vector3 mousePos = Input.mousePosition;
     mousePos = cam.ScreenToWorldPoint (new Vector3 (mousePos.x, mousePos.y, cam.transform.position.y - transform.position.y));
     targetRotation = Quaternion.LookRotation (mousePos - new Vector3 (transform.position.x, 0, transform.position.z));
     transform.eulerAngles = Vector3.up * $$anonymous$$athf.$$anonymous$$oveTowardsAngle (transform.eulerAngles.y, targetRotation.eulerAngles.y, targetRotation * Time.deltaTime);

     Vector3 input = new Vector3 (Input.GetAxisRaw ("Horizontal"), 0, Input.GetAxisRaw ("Vertical"));
     Vector3 motion = input;
     motion *= ($$anonymous$$athf.Abs(input.x) == 1 && $$anonymous$$athf.Abs(input.z) == 1)?.7f:1;
     motion *= (Input.GetButton("Run"))?speed;
     motion += Vector3.up * -8;     


 }
 // Update is called once per frame
 void FixedUpdate () { 
     float x = Input.GetAxis ("Horizontal"); 
     float y = Input.GetAxis ("Vertical"); 

     rbody.velocity = new Vector2 (x * speed, y * speed); 

 }