/// <summary>
/// Checks if another ArUcoDrone is in front of the drone and within range.
/// Will also check if there's a real object in the way, if checkRealWorldObstaclesBeforeShooting is true.
/// </summary>
/// <returns>True if there's a valid target in front of the drone.</returns>
private bool IsAimingAtTarget()
{
//First make sure there's a valid virtual target in front of the drone.
Ray ray = new Ray(shootAnchorObject.position, shootAnchorObject.rotation * Vector3.forward);
RaycastHit[] hits = Physics.RaycastAll(ray, shootRangeMeters);
bool foundvirtualtarget = false;
float nearestdist = Mathf.Infinity;
foreach (RaycastHit hit in hits)
{
ArUcoDrone otherdrone = hit.transform.GetComponent <ArUcoDrone>();
if (otherdrone != null && otherdrone != this)
{
foundvirtualtarget = true;
if (hit.distance < nearestdist)
{
nearestdist = hit.distance;
}
}
}
if (!foundvirtualtarget)
{
return(false);
}
if (checkRealWorldObstaclesBeforeShooting) //Make sure there's not a real-world obstacle in the way of the target.
{
//If there is one, check to make sure there's not a real-world object in the way.
Vector3 collisionpoint; //Not used but required for HitTestOnRay function.
foreach (ZEDManager manager in ZEDManager.GetInstances())
{
bool hitreal = ZEDSupportFunctions.HitTestOnRay(manager.zedCamera, manager.GetLeftCamera(), shootAnchorObject.transform.position, shootAnchorObject.transform.rotation,
nearestdist, 0.01f, out collisionpoint, false, 0.1f);
if (hitreal)
{
return(false);
}
}
return(true);
}
else
{
return(true); //We're not checking against the real world, and we already found a virtual object, so fire.
}
}
/// <summary>
/// Called when the projectile hits a virtual object with a collider.
/// If the object is an ArUco drone, applies damage. Regardless, spawns an explosion and destroys the projectile.
/// </summary>
public override void OnHitVirtualWorld(RaycastHit hitinfo)
{
ArUcoDrone otherdrone = hitinfo.transform.GetComponent <ArUcoDrone>();
if (otherdrone != null && otherdrone != spawningDrone)
{
otherdrone.TakeDamage(damage);
}
if (explosionPrefab)
{
Quaternion explosionrotation = (hitinfo.normal.sqrMagnitude <= 0.001f) ? Quaternion.identity : Quaternion.LookRotation(hitinfo.normal, Vector3.up);
GameObject explosion = Instantiate(explosionPrefab, hitinfo.point, explosionrotation);
}
base.OnHitVirtualWorld(hitinfo); //Destroy.
}
