public GameObject Instantiate(float damage, int aliveFrames, Direction direction)
{
Vector2 translation = DirectionUtilities.VectorFromDirection(direction);
// Scale the translation to make it spawn closer or farther.
translation *= HitBoxDistance;
GameObject spawned = Instantiate(_hitBox, transform.position + (Vector3)translation, Quaternion.identity);
// Set the hitbox settings.
TempHitBox hb = spawned.GetComponent <TempHitBox>();
hb.Damage = damage;
hb.AliveFrames = aliveFrames;
return(spawned);
}
private void SpawnEnemyInFront()
{
// We need to see how far in front to spwan the enemy.
// This will be done by straight up casting a ray in front of us and spawning an enemy in between us and the collider we detect, if any.
Vector2 rayDir = DirectionUtilities.VectorFromDirection(CurrentDirection);
const float rayDist = 2;
float spawnDist = rayDist / 2;
// I have to do the raycast in this janky way because my own collider gets in the way.
// This way has the ray persist.
RaycastHit2D[] hits = new RaycastHit2D[2];
int numHits = Physics2D.Raycast(transform.position, rayDir, new ContactFilter2D(), hits, rayDist);
if (numHits > 1)
{
// Adjust the spawn distance for the collider we hit.
spawnDist *= hits[1].fraction;
}
else if (numHits == 1 && hits[0].fraction == 0)
{
// I know you are not supposed to check equality with floats, but the Unity docs said the fraction will ALWAYS be 0 when colliding with itself.
// Makes sense.
spawnDist *= hits[0].distance;
}
// We cannot spawn the enemy too close to us.
if (spawnDist > 0.2)
{
SkullSwordsman enemy = EnemiesManager.Instance.SpawnEnemy <SkullSwordsman>((Vector2)transform.position + rayDir * spawnDist);
// This enemy is going to track the same player.
enemy.Target = Target;
// We do not want these enemies to re-appear when reloading the game.
enemy.IsPersistent = false;
// Have this enemy wander around waypoints if some were provided.
if (_waypoints != null && _waypoints.Length >= 2)
{
enemy.Waypoints = _spawnWaypoints.OrderBy(wp => Vector2.Distance(wp.position, enemy.transform.position)).Take(2).ToArray();
}
// To prevent to many enemies, we will kill this guy after some time.
KillEnemyAfter(enemy, SpawnedEnemyAliveTimeSeconds);
}
}