/// <summary>Sets the target of the tower.</summary>
/// <param name="target">The Target.</param>
private void SetTarget(BGameObject target)
{
mTarget = target;
if (mTarget == null)
{
return;
}
var targetPosition = new Vector2(target.Position.X + target.Width / 2.0f / 32 + target.TextureOffset.X, target.Position.Y + target.Height / 2.0f / 32 + target.TextureOffset.Y);
var centerPosition = new Vector2(Position.X + Width / 2.0f / 32, Position.Y);
var targetDistance = Vector2.Distance(centerPosition, targetPosition);
mTargetPosition = targetPosition;
mTargetToFar = targetDistance > Radius;
}
public void SetTargets(IEnumerable <BGameObject> objects, bool force = false)
{
if (force)
{
mForceTargets = true;
mForcedTargets = (List <BGameObject>)objects;
if (mForcedTargets.Count == 0)
{
mForceTargets = false;
}
}
IEnumerable <BGameObject> enemies;
var anyForcedInRange = false;
foreach (var obj in mForcedTargets)
{
if (Vector2.Distance(new Vector2(obj.Position.X + obj.Width / 2.0f / 32 + obj.TextureOffset.X,
obj.Position.Y + obj.Height / 2.0f / 32 + obj.TextureOffset.Y),
new Vector2(Position.X + Width / 2.0f / 32, Position.Y)) <= Radius)
{
anyForcedInRange = true;
break;
}
}
if (mForceTargets && anyForcedInRange)
{
enemies = mForcedTargets;
}
else
{
enemies = objects;
}
switch (Mode)
{
case FireMode.Closest:
BGameObject closestObject = null;
var closestDistance = float.PositiveInfinity;
foreach (var obj in enemies)
{
var position = new Vector2(obj.Position.X + obj.Width / 2.0f / 32 + obj.TextureOffset.X, obj.Position.Y + obj.Height / 2.0f / 32 + obj.TextureOffset.Y);
var centerPosition = new Vector2(Position.X + Width / 2.0f / 32, Position.Y);
var distance = Vector2.Distance(centerPosition, position);
if (distance < closestDistance && obj.Health > 0)
{
closestObject = obj;
closestDistance = distance;
}
}
SetTarget(closestObject);
break;
case FireMode.Weakest:
BGameObject weakestObject = null;
var weakestHealth = float.PositiveInfinity;
foreach (var obj in enemies)
{
if (obj.Health < weakestHealth && obj.Health > 0)
{
weakestObject = obj;
weakestHealth = obj.Health;
}
}
SetTarget(weakestObject);
break;
case FireMode.Strongest:
BGameObject strongestObject = null;
var strongestHealth = float.NegativeInfinity;
foreach (var obj in enemies)
{
if (obj.Health > strongestHealth && obj.Health > 0)
{
strongestObject = obj;
strongestHealth = obj.Health;
}
}
SetTarget(strongestObject);
break;
}
}
