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Game Development How to Make a Video Game Player Input and Cameras Rotate the Player Towards the Target

So i have rewatched the video and reread my code several times now but I cannot get the frog to move in play mode.

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

public class PlayerMovement : MonoBehaviour {

    private Animator playerAnimator;
    private float moveHorizontal;
    private float moveVertical;
    private Vector3 movement;
    private float turningSpeed = 20f;
    private Rigidbody playerRigidbody;

    // Use this for initialization
    void Start () {

        // Gather components from the Player GameObject
        playerAnimator = GetComponent<Animator> ();
        playerRigidbody = GetComponent<Rigidbody> ();

    // Update is called once per frame
    void Update () {

        // Gather input from the keyboard
        moveHorizontal = Input.GetAxisRaw ("Horizontal");
        moveVertical = Input.GetAxisRaw ("Vertical");

        movement = new Vector3 (moveHorizontal, 0.0f, moveVertical);


    void FixedUpate () {

        //if the players movement vector does not = 0... 
        if (movement != Vector3.zero) {

            //...then create a target rotation based on the movement vector...
            Quaternion targetRotation = Quaternion.LookRotation (movement, Vector3.up);

            //and create another rotation that moves from the current rotation to the target rotation
            Quaternion newRotation = Quaternion.Lerp (playerRigidbody.rotation, targetRotation, turningSpeed * Time.deltaTime);

            //..and change the players rotation to the new incremental rotation...
            playerRigidbody.MoveRotation (newRotation);

            //then play the jump animation.
            playerAnimator.SetFloat ("Speed", 3f);
        } else {
            //Otherwise dont play the jump animation
            playerAnimator.SetFloat ("Speed", 0f);


Moderator edited: Added markdown to make the code render properly on the forums. -JN :sparkles:

Thoughts? Only thing I did was when prompted I changed the line endings form Unix to windows.

Jennifer Nordell
Jennifer Nordell
Treehouse Teacher

Hi there! I've also looked at your code, and can't see the error which makes me suspect that there might not be one. So, let's check some basics. When you select the object, can you see the PlayerMovement class connected as a component? Make sure it looks like what is shown in 9:02 of this video. Also, make sure you've saved the scene. Let me know if these are correct but you're still not able to move the frog! :frog:

Yeah its in there as a component.


Jennifer Nordell
Jennifer Nordell
Treehouse Teacher

I've looked at your screenshot and there are at least a couple of things that stand out (to me). You have some things which appear grayed out, where Nick's does not. Is it possible that you made some move within the file system to relocate your project and can you absolutely confirm that you've saved all files and the scene?

Specifically, your Player, PlayerController and PlayerMovement script all appear to be grayed out. I feel like if we can figure out why that is, we'll have the answer to your question.

PlayerMovement is the only one grayed out, from what I can tell my highlighting of player is color highlighting it and Playercontroller i cant really tell. But yes I did notice that my Playermovement is grayed out...not sure where to begin with that one...I did go back and ctrl s both my script and the scene


Turned the debugger on and it looks like its not reading my script? Also according to the Unity forums, the field being grayed out is standard as of 2015 and you need to switch the inspector to debug mode to ungray it. However, it is saying that player animator is none...