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Game Development How to Make a Video Game Score, Enemies, and Game State Create Enemy Navigation and AI

Adam Beck
Adam Beck
9,345 Points

My Bird Will Not Move

So I triple checked the code and still can not make the bird move! Am I missing something?

using UnityEngine; using System.Collections;

public class BirdMovement : MonoBehaviour {

private Transform target;
private NavMeshAgent birdAgent;
private Animator birdAnimator;

// Use this for initialization
void Start () {
    birdAgent = GetComponent<NavMeshAgent> ();
    birdAnimator = GetComponent<Animator> ();

// Update is called once per frame
void Update () {
    // Set the birds destination
    birdAgent.SetDestination (target.position);

    // Measure the magnitude of the NavMeshAgents velocity
    float speed = birdAgent.velocity.magnitude;

    // Pass the velocity to the animator component
    birdAnimator.SetFloat ("Speed", speed);



Nicholas Wood
Nicholas Wood
268 Points


Did you drag the Player prefab from the Hierarchy window in to the Target field in the inspector for your script?

Did you drag the Player GameObject into the target field? Also, try replacing the "speed" variable (on the birdAnimator.SetFloat ("Speed", speed); line) with the speed.

1 Answer

Tung Nguyen
Tung Nguyen
1,519 Points

You must drag & drop the Player GameObject in Hierarchy panel on the left side into the Target field of "Bird Movement Script component" in the Inspector panel of Bird GameObject :D

I mistakenly drag Player GameObject in Prefabs folder of Assets panel, and the game looks working correctly but after reaching the first frog's position, the bird doesn't chase the frog anymore =.=