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using System.Collections;
using System.Collections.Generic;
using UnityEngine;
/// <summary>
/// 回旋镖
/// </summary>
public class Boomerang : MonoBehaviour
{
public BoomerangAfterImage m_AfterImage;
private Vector2 m_Direction;
// 当前速度
private float m_Speed;
// 最大飞行距离
private float m_MaxDist;
private float m_RotateSpeed = 500f;
Coroutine m_CoAfterImage;
public void Set(Vector2 dir, float speed, float maxDist)
{
m_Direction = dir;
m_Speed = speed;
m_MaxDist = maxDist;
m_CoAfterImage = StartCoroutine(CoAfterImage(0.05f));
}
private void Update()
{
Vector2 move = m_Direction * m_Speed * Time.deltaTime;
m_MaxDist -= move.magnitude;
if(m_MaxDist <= 0)
{
Destroy(this.gameObject);
if (m_CoAfterImage != null)
{
StopCoroutine(m_CoAfterImage);
}
return;
}
Vector3 pos = transform.position;
pos += new Vector3(move.x, move.y, 0);
transform.position = pos;
transform.rotation *= Quaternion.Euler(0,0,m_RotateSpeed * Time.deltaTime);
}
IEnumerator CoAfterImage(float interval)
{
while (true)
{
BoomerangAfterImage afterImage = BoomerangAfterImage.Instantiate(m_AfterImage);
afterImage.Set(this);
afterImage.transform.position = this.transform.position;
afterImage.transform.localScale= new Vector3(0.5f, 0.5f, 1f);
afterImage.transform.rotation = this.transform.rotation;
afterImage.gameObject.SetActive(true);
yield return new WaitForSeconds(interval);
}
}
}
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