public int this[Planet p1, Planet p2]
{
get
{
if (!m_Initialised) throw new InvalidStateException();
int x = p1.Id, y = p2.Id;
/* Use only half of the matrix to avoid double calculations (DistanceTo is a symmetric relation) */
if( x + y > m_NumPlanets )
{
int tmp = x;
x = y;
y = tmp;
}
int ret = m_DistanceMatrix[x, y];
if( ret == 0 )
{
double dx = p1.X - p2.X,
dy = p1.Y - p2.Y;
ret = m_DistanceMatrix[p1.Id, p2.Id] = (int) Math.Ceiling( Math.Sqrt( dx*dx + dy*dy ) );
}
return ret;
}
}
private static double PolynomialDistanceWeight(Planet p, Planet reference, Polynomial poly)
{
return
( (double)p.GrowthRate /
( (double)p.ShipCount * /* Addition vs multiplication seems to make very little difference here */
(poly * p.DistanceTo(reference))
)
) *
( (p.Owner == Players.Singleton.You) ? 2 : 1 );
}
public Fleet(GameState gs,
Player owner,
int shipCount,
int sourcePlanet,
int destinationPlanet,
int totalTripLength,
int turnsRemaining)
{
m_Owner = owner;
m_ShipCount = shipCount;
m_SourcePlanet = gs.Planets[sourcePlanet];
m_DestinationPlanet = gs.Planets[destinationPlanet];
m_TotalTripLength = totalTripLength;
m_TurnsRemaining = turnsRemaining;
}
public PlanetRender( Planet planet )
{
EllipseGeometry planetGeom;
FormattedText text;
Geometry textGeom;
double radius = Math.Sqrt(planet.GrowthRate) / c_RadiusScale; /* Area proportional to growth rate */
planetGeom = new EllipseGeometry(new Point(planet.X, planet.Y), radius, radius);
m_gg.Children.Add(planetGeom);
text = new FormattedText(
planet.ShipCount.ToString(),
CultureInfo.CurrentCulture,
FlowDirection.LeftToRight,
new Typeface("Tahoma"),
radius < 0.6 ? 0.6 : radius,
Brushes.Black);
textGeom = text.BuildGeometry(new Point(planet.X - text.Width / 2, planet.Y - text.Height / 2));
m_gg.Children.Add(textGeom);
m_gg.Freeze( );
}
private static double Weight(Planet p)
{
return
((double)p.GrowthRate / (double)p.ShipCount) *
((p.Owner == Players.Singleton.You) ? 2 : 1);
}
static private double NoDistanceWeight(Planet p)
{
return
(((double)p.GrowthRate / (double)p.ShipCount) *
((p.Owner == Players.Singleton.You) ? 2 : 1));
}
private static double DistanceOnlyWeight(Planet p, Planet reference)
{
return 1 / (double)p.DistanceTo(reference);
}
public Order( Planet sourcePlanet, Planet destinationPlanet, int shipCount )
{
m_SourcePlanet = sourcePlanet;
m_DestinationPlanet = destinationPlanet;
m_ShipCount = shipCount;
}