Source Code for frontStyle movement

Player.cs

using UnityEngine;
using System.Collections;

public class Player : MonoBehaviour {

    public GameStateManager gameStateManager;

    public float playerSpd, fwdSpd, sidSpd, jumpHeight;
    public bool isGrounded;

   

    public Rigidbody rb;

	// Use this for initialization
	void Awake () {
        rb = this.GetComponent<Rigidbody>();
	}
	
	// Update is called once per frame
	void Update () {
	
       if(gameStateManager.gameState == GameStateManager.GameState.OnePlayer)
        {
            GetMovementInputs();
        }

	}

    void FixedUpdate()
    {

        if (gameStateManager.gameState == GameStateManager.GameState.OnePlayer)
        {
            ApplyMovementInput();
        }

    }

    public void GetMovementInputs()
    {
        fwdSpd = 0;
        sidSpd = 0;

        //foward and back(z axis)

        if(Input.GetKey(KeyCode.W))
        {
            fwdSpd += playerSpd;
        }

        else if (Input.GetKey(KeyCode.S))
        {
            fwdSpd -= playerSpd;
        }


        //horizontal



         if (Input.GetKey(KeyCode.D))
        {
            sidSpd += playerSpd;
        }
        else if (Input.GetKey(KeyCode.A))
        {
            sidSpd -= playerSpd;
        }


        if (Input.GetKeyDown(KeyCode.Space) && isGrounded == true)
        {
            rb.AddForce(0, jumpHeight, 0, ForceMode.Impulse);
            
        }

    }

    public void ApplyMovementInput()
    {
        rb.AddForce(new Vector3(sidSpd, 0, fwdSpd), ForceMode.Force);
    }

    public void OnCollisionEnter(Collision col)
    {
        if(col.gameObject.tag == "ground")
        {
            isGrounded = true;
        }
        if (col.gameObject.tag == "Respawn")
        {
            PlayerRespawn();
        }
    }

    public void OnCollisionExit(Collision col)
    {
        if (col.gameObject.tag == "ground")
        {
            isGrounded = false;
        }
    }

    public void PlayerRespawn()
    {
        Vector3 initPos = gameStateManager.initSpawnPos;
        this.transform.position = new Vector3(initPos.x, initPos.y, this.transform.position.z);
    }
}