IEnumerator ContinueAttackingTargets(AttackPriority prio, List <enemy> enemies_list)
{
while (true)
{
//Debug.Log("ContinueAttackingTargets");
enemy target = null;
//get list of all targets in radius
List <enemy> enemies_in_range = new List <enemy>();
foreach (enemy en in enemies_list)
{
if ((transform.position - en.transform.position).sqrMagnitude < attack_radius * attack_radius) //sqrmagnitude cheaper than a costly sqrt operation
{
enemies_in_range.Add(en);
}
}
// Find the target based on the priority param
// Note that a property of newly spawned enemies guarantees that the lower the index, the earlier it was spawned!
// Equal values during search will be ignored; in that case first success will always be used
if (enemies_in_range.Count > 0)
{
switch (prio)
{
case AttackPriority.hp_highest:
target = enemies_in_range[0];
foreach (enemy en in enemies_in_range)
{
if (en.hp > target.hp)
{
target = en;
}
}
break;
case AttackPriority.hp_lowest:
target = enemies_in_range[0];
foreach (enemy en in enemies_in_range)
{
if (en.hp < target.hp)
{
target = en;
}
}
break;
case AttackPriority.speed_fastest:
target = enemies_in_range[0];
foreach (enemy en in enemies_in_range)
{
if (en.speed > target.speed)
{
target = en;
}
}
break;
case AttackPriority.speed_slowest:
target = enemies_in_range[0];
foreach (enemy en in enemies_in_range)
{
if (en.speed < target.speed)
{
target = en;
}
}
break;
case AttackPriority.first: //TODO
target = enemies_in_range[0];
break;
case AttackPriority.last: //TODO
target = enemies_in_range[0];
break;
default:
target = enemies_in_range[0]; //default to first (only guaranteed) element.
break;
}//end switch
}
//attack the targeted enemy
if (target != null)
{
Debug.DrawLine(transform.position, target.transform.position, Color.yellow, .1f); //shows what it is hitting!
DummyAttack(transform.position, target.transform.position, .1f);
target.ApplyDamage(attack_damage);
yield return(new WaitForSeconds(attack_cooldown)); //invoke cooldown if we successfully attacked
}
else
{
yield return(null); //we did not attack. No cooldown invoked.
}
}
}