using UnityEngine;
using System.Collections;

public class CharacterMovement : MonoBehaviour{
  private Rigidbody2D playerRigidBody2D;

  private float movePlayerHorizontal;
  private float movePlayerVertical;
  private Vector2 movement;

  public float speed = 4.0f;

  private Animator playerAnim;

  private SpriteRenderer playerSpriteImage;

  void Awake(){
    playerRigidBody2D = (Rigidbody2D)GetComponent(typeof(Rigidbody2D));
    playerAnim=(Animator)GetComponent(typeof(Animator));
    playerSpriteImage=(SpriteRenderer)GetComponent(typeof(SpriteRenderer));
  }

  void Update () {
    movePlayerHorizontal = Input.GetAxis("Horizontal");
    movePlayerVertical = Input.GetAxis("Vertical");
    movement=new Vector2(movePlayerHorizontal,movePlayerVertical);

    playerRigidBody2D.velocity=movement*speed;

    if(movePlayerVertical==0 && movePlayerHorizontal==0){
      playerAnim.SetBool("moving",false);
    }else{
      playerAnim.SetBool("moving",true);
    }

    if(movePlayerVertical!=0){
      playerAnim.SetBool("xMove",false);
      playerSpriteImage.flipX=false;

      if(movePlayerVertical>0){
        playerAnim.SetInteger("yMove",1);

      }else if(movePlayerVertical<0){
        playerAnim.SetInteger("yMove",-1);

      }
    }else {
      playerAnim.SetInteger("yMove",0);

      if(movePlayerHorizontal>0){
        playerAnim.SetBool("xMove",true);
        playerSpriteImage.flipX=false;

      }else if(movePlayerHorizontal<0){
        playerAnim.SetBool("xMove",true);
        playerSpriteImage.flipX=true;

      }else{
        playerAnim.SetBool("xMove",false);
      }
    }
  }
}

using System.Collections;
using UnityEngine;

public class CharacterMovement : MonoBehaviour {
  private Rigidbody2D _playerRigidbody2D;
  private Animator _playerAnimator;
  private SpriteRenderer _playerSpriteRenderer;

  private float movePlayerHorizontal;
  private float movePlayerVertical;
  private Vector2 movement;

  public float speed = 4.0f;

  void Awake() {
    _playerRigidbody2D    =    (Rigidbody2D)GetComponent(typeof(Rigidbody2D));
    _playerAnimator       =       (Animator)GetComponent(typeof(Animator));
    _playerSpriteRenderer = (SpriteRenderer)GetComponent(typeof(SpriteRenderer));
  }

  void Update () {
    movePlayer();
    detectMovementDirection();
  }

  void detectMovementDirection() {
    if(isMovingVertical()) {
      moveVertical();
    } else {
      moveHorizontal();
    }
  }

  void moveHorizontal(){
    _playerAnimator.SetInteger("yMove", 0);
    if (isMovingRight()) {
      _playerAnimator.SetBool("xMove", true);
      _playerSpriteRenderer.flipX = false;
    } else if (isMovingLeft()) {
      _playerAnimator.SetBool("xMove", true);
      _playerSpriteRenderer.flipX = true;
    } else {
      _playerAnimator.SetBool("xMove", false);
    }
  }

  void moveVertical(){
    _playerAnimator.SetBool("xMove", false);
    _playerSpriteRenderer.flipX = false;
    if(isMovingUp()) {
      _playerAnimator.SetInteger("yMove", 1);
    } else if (isMovingDown()) {
      _playerAnimator.SetInteger("yMove", -1);
    }
  }

  bool isMovingVertical() {
    return movePlayerVertical != 0;
  }

  bool isMovingUp() {
    return movePlayerVertical > 0;
  }

  bool isMovingDown() {
    return movePlayerVertical < 0;
  }

  bool isMovingRight() {
    return movePlayerHorizontal > 0;
  }

  bool isMovingLeft() {
    return movePlayerHorizontal < 0;
  }

  void movePlayer(){
    movePlayerHorizontal = Input.GetAxis("Horizontal");
    movePlayerVertical = Input.GetAxis("Vertical");
    movement = new Vector2(movePlayerHorizontal, movePlayerVertical);
    _playerRigidbody2D.velocity = movement * speed;
  }
}