private static ProxyStarcraft.Unit GetTarget(ProxyStarcraft.Unit unit, GameState gameState)
{
// Only valid for units with exactly one weapon
var range = gameState.UnitTypes[unit.Raw.UnitType].Weapons[0].Range;
ProxyStarcraft.Unit target = null;
foreach (var enemyUnit in gameState.EnemyUnits)
{
var distance = unit.GetDistance(enemyUnit);
if (distance < range)
{
if (target == null ||
enemyUnit.Raw.Health < target.Raw.Health ||
(enemyUnit.Raw.Health == target.Raw.Health && distance < unit.GetDistance(target)))
{
target = enemyUnit;
}
}
}
return(target);
}
/// <summary>
/// Determines which of the specified units is the closest.
/// In the event of a tie, the earliest one in the enumeration is returned.
/// Uses GetDistance, and the same question about edge-to-edge distance therefore applies.
/// </summary>
public static Unit GetClosest(this Unit self, IEnumerable <Unit> others)
{
Unit closest = null;
var minDistance = 99999f;
foreach (var other in others)
{
var distance = self.GetDistance(other);
if (distance < minDistance)
{
closest = other;
minDistance = distance;
}
}
return(closest);
}