导航与动画

// LocomotionSimpleAgent.cs

using UnityEngine;

[RequireComponent (typeof (NavMeshAgent))]

[RequireComponent (typeof (Animator))]

public class LocomotionSimpleAgent : MonoBehaviour {

Animator anim;

NavMeshAgent agent;

Vector2 smoothDeltaPosition = Vector2.zero;

Vector2 velocity = Vector2.zero;

void Start ()

{

anim = GetComponent ();

agent = GetComponent ();

// Don’t update position automatically

agent.updatePosition = false;

}

void Update ()

{

Vector3 worldDeltaPosition = agent.nextPosition - transform.position;

// Map 'worldDeltaPosition' to local space

float dx = Vector3.Dot (transform.right, worldDeltaPosition);

float dy = Vector3.Dot (transform.forward, worldDeltaPosition);

Vector2 deltaPosition = new Vector2 (dx, dy);

// Low-pass filter the deltaMove

float smooth = Mathf.Min(1.0f, Time.deltaTime/0.15f);

smoothDeltaPosition = Vector2.Lerp (smoothDeltaPosition, deltaPosition, smooth);

// Update velocity if time advances

if (Time.deltaTime > 1e-5f)

velocity = smoothDeltaPosition / Time.deltaTime;

bool shouldMove = velocity.magnitude > 0.5f && agent.remainingDistance > agent.radius;

// Update animation parameters

anim.SetBool("move", shouldMove);

anim.SetFloat ("velx", velocity.x);

anim.SetFloat ("vely", velocity.y);

GetComponent().lookAtTargetPosition = agent.steeringTarget + transform.forward;

}

void OnAnimatorMove ()

{

// Update position to agent position

transform.position = agent.nextPosition;

}

}