public void Shoot(bool center, int touchIndex)
{
ShowText("Shoot !");
//获取鼠标点击位置
//创建射线;从摄像机发射一条经过鼠标当前位置的射线
Vector3 mousePos = Input.mousePosition;
if (center)
{
mousePos = new Vector3(Screen.width / 2, Screen.height / 2, 0);
}
else if (touchIndex >= 0)
{
Touch touch = Input.GetTouch(touchIndex);
mousePos = new Vector3(touch.position.x, touch.position.y, 0);
}
Ray ray = mainCamera.ScreenPointToRay(mousePos);
//从摄像机的位置创建一个带有刚体的球ballPrefab为预制小球
GameObject go = null;
BulletType currentType = bulletTypes[choosedBulletType];
go = Instantiate(currentType.prefab, transform.position, Quaternion.identity);
go.transform.rotation = Random.rotation;
if (currentType.initCallback != null)
{
currentType.initCallback(go);
}
go.transform.SetParent(ballHost.transform);
//发射数来的球沿着摄像机到鼠标点击的方向进行移动
Rigidbody ball = go.GetComponent <Rigidbody>() as Rigidbody;
ball.AddForce(shootForce * ray.direction);
}