/// <summary>
/// Returns the closest enemy of given UnitTypes that is within the given maximum distance.
/// </summary>
/// <param name="myUnit">Unit to find the enemies of.</param>
/// <param name="unitTypes">Array of unit types that are valid targets.</param>
/// <param name="maxDistance">Maximum distance to find enemies.</param>
/// <returns>Closest enemy unit within max distance.</returns>
public static GameObject GetClosestEnemy(GameObject myUnit, UnitType[] unitTypes, int maxDistance, bool objectiveUnitsOnly)
{
List <GameObject> enemies;
if (objectiveUnitsOnly)
{
enemies = UnitTracker.GetObjectiveEnemies(myUnit);
}
else
{
enemies = UnitTracker.GetActiveEnemies(myUnit);
}
GameObject closestEnemy = null;
float closestEnemyDistance = float.MaxValue;
foreach (GameObject go in enemies)
{
bool isCorrectShipType = false;
foreach (UnitType ut in unitTypes)
{
if (go.GetComponent <UnitInfo>().UnitType == ut)
{
isCorrectShipType = true;
break;
}
}
if (!isCorrectShipType)
{
continue;
}
float dist = (go.transform.position - myUnit.transform.position).magnitude;
if (dist < closestEnemyDistance && dist <= maxDistance)
{
closestEnemyDistance = (go.transform.position - myUnit.transform.position).magnitude;
closestEnemy = go;
}
}
return(closestEnemy);
}
