public static IObservable <NavMeshAgent> SetDestinationAsObservable(this NavMeshAgent agent, Vector3 position)
{
agent.SetDestination(position);
var o = agent.ObserveEveryValueChanged(x => x.hasPath)
.SkipWhile(x => !agent.hasPath)
.Where(x => !x)
.First()
.Select(_ => agent);
return(o);
}
public void RunAway()
{
currentState = EnemyState.TENSION;
coloring.material.color = Color.red;
escapeTime = 0;
agent.angularSpeed = 200;
//プレイヤーと逆方向を向く
var diff = (transform.position - player.transform.position).normalized;
diff.y = 0;
transform.rotation = Quaternion.FromToRotation(diff, Vector3.up);
agent.SetDestination(GetNextPosition());
//目的地に近づいたら次の目的地を検索
agent.ObserveEveryValueChanged(d => agent.remainingDistance)
.Where(d => d < 2.0f)
.Where(_ => currentState == EnemyState.TENSION)
.Subscribe(_ =>
{
var nextposition = GetNextPosition();
agent.SetDestination(nextposition);
}).AddTo(gameObject);
//一定距離離れて一定時間経ったら状態を戻す
this.UpdateAsObservable()
.TakeWhile(_ => currentState == EnemyState.TENSION)
.Select(_ => (transform.position - player.transform.position).sqrMagnitude)
.Where(distance => distance > targetDistance * targetDistance)
.Subscribe(distance =>
{
escapeTime += Time.deltaTime;
if (escapeTime >= 10)
{
Usual();
}
});
}