bool isGround; //是否落地
private void EnemyForward()
{
RaycastHit hit;
//看见攻击目标则攻击
if (Physics.Raycast(eye.position, transform.forward, out hit, view, LayerMask.GetMask("City")))
{
state = EnemyState.attack;
anim.Play("attack");
target = hit.collider.GetComponent <MainCity>();
}
if (Physics.Raycast(eye.position, Vector3.down, out hit, 4.1f, LayerMask.GetMask("Way")))
{
way = hit.transform;
wayDir = Quaternion.LookRotation(way.forward);
//获取与道路的偏移量
Vector3 distance = transform.position - way.position;
float offset = Vector3.Dot(distance, way.right.normalized);
//往道路方向旋转和移动
transform.rotation = Quaternion.RotateTowards(transform.rotation, wayDir, speed * 20 * Time.deltaTime);
transform.Translate(-offset * Time.deltaTime, 0, speed * Time.deltaTime);
isGround = true;
}
else
{
isGround = false;
}
}
//前进方法
private void EnemyForward()
{
RaycastHit hit;
//看见攻击目标则攻击
if (Physics.Raycast(eye.position, transform.forward, out hit, view, LayerMask.GetMask("City")))
{
state = EnemyState.attack;
anim.Play("attack");
target = hit.collider.GetComponent <MainCity>();
}
//斜下方30°打射线检测前方道路
if (Physics.Raycast(eye.position, Quaternion.AngleAxis(30, transform.right)
* transform.forward, out hit, 50, LayerMask.GetMask("Way")))
{
Debug.DrawLine(eye.position, hit.point, Color.blue);
//发现未走过的道路,获取该道路,朝向该路通往的方向
if (!ways.Contains(hit.collider))
{
ways.Add(hit.collider);
way = hit.transform;
wayDir = Quaternion.LookRotation(way.forward);
}
}
else //前方没路了发射球形射线检测周围是否有路
{
Collider[] colliders = Physics.OverlapSphere(transform.position, 8, LayerMask.GetMask("Way"));
for (int i = 0; i < colliders.Length; i++)
{
//发现未走过的道路,获取该道路,朝向该路通往的方向
if (!ways.Contains(colliders[i]))
{
way = colliders[i].transform;
wayDir = Quaternion.LookRotation(way.forward);
break;
}
}
}
//获取与脚下道路x轴上偏差值,好让自身走在路中间
float offset = 0;
if (way != null)
{
Vector3 distance = transform.position - way.position;
offset = Vector3.Dot(distance, way.right.normalized);
}
//面向该路指向的方向前进
transform.rotation = Quaternion.RotateTowards(transform.rotation, wayDir, speed * 20 * Time.deltaTime);
transform.Translate(-offset * Time.deltaTime, 0, speed * Time.deltaTime);
}
