IEnumerator AIUnitAttack(Unit unit)
{
while (isInAction)
{
yield return(null);
}
isInAction = true;
//simulate thinking
yield return(new WaitForSeconds(1f));
UnitAttack dattack = unit.GetComponent <UnitAttack>();
GameObject unitPos = BoardManager.Instance.GetPositionOfUnit(unit);
List <GameObject> attackFields = dattack.GetAttackTiles(unitPos, true, BoardManager.TileType.Attack)
.OrderBy(i => Vector3.Distance(i.transform.position, unitPos.transform.position)).ToList();
while (GameController.Instance.State == GameController.GameState.PerformingAction)
{
yield return(null);
}
if (attackFields.Count > 0)
{
//simulate thinking
yield return(new WaitForSeconds(1f));
Unit closestEnemy = Unit.UnitsList.Where(i => BoardManager.Instance.GetPositionOfUnit(i) == attackFields[0]).ToList()[0];
if (unit.CanAttack)
{
dattack.Attack(closestEnemy);
}
}
unit.CanAttack = false;
//simulate thinking
yield return(new WaitForSeconds(0.5f));
isInAction = false;
}
GameObject FindSafestField(GameObject startPosField, List <GameObject> availableFields)
{
GameObject safestF = startPosField;
//add the current field as first to check if it is the best place
availableFields.Insert(0, startPosField);
foreach (GameObject field in availableFields)
{
if (!isInDangerField(field))
{
safestF = field;
break;
}
}
//find the weakest enemy in case all fields are endangered
if (safestF == startPosField && isInDangerField(safestF))
{
List <Unit> enemyList = Unit.UnitsList.Where(i => i.IsPlayerControlled).OrderBy(i => i.AttackPower).ToList();
List <GameObject> allAttFields = new List <GameObject>();
foreach (Unit enemy in enemyList)
{
UnitAttack enemy_attack = enemy.GetComponent <UnitAttack>();
allAttFields.Concat(enemy_attack.GetAttackTiles(BoardManager.Instance.GetPositionOfUnit(enemy), true, BoardManager.TileType.Attack));
}
//sort by least endangered field (one field can be endangered from more than one unit)
allAttFields = allAttFields.Distinct().ToList();
for (int i = allAttFields.Count; i >= 0; i--)
{
if (availableFields.Contains(allAttFields[i - 1]))
{
safestF = allAttFields[i - 1];
break;
}
}
}
return(safestF);
}