// This is to be private. Only the FOVManager should update.
private void UpdateFOV(IMapCore map, Point viewPoint, int viewableDistance)
{
// We do +2 just to make sure we don't get any border effects.
int viewableRadius = viewableDistance + 2;
// We're going to only setup an area around the viewPoint as "viewable" if it is, so we don't
// have to traverse the entire map.
Point upperLeftPointViewRange = map.CoercePointOntoMap(viewPoint - new Point(viewableRadius, viewableRadius));
Point lowerRightPointViewRange = map.CoercePointOntoMap(viewPoint + new Point(viewableRadius, viewableRadius));
Point viewRange = lowerRightPointViewRange - upperLeftPointViewRange;
m_physicsMap.Clear();
for (int i = upperLeftPointViewRange.X; i < upperLeftPointViewRange.X + viewRange.X; ++i)
{
for (int j = upperLeftPointViewRange.Y; j < upperLeftPointViewRange.Y + viewRange.Y; ++j)
{
bool isFloor = map.GetTerrainAt(i, j) == TerrainType.Floor;
m_physicsMap.Cells[i, j].Transparent = isFloor;
}
}
foreach (MapObject obj in map.MapObjects.Where(x => x.IsSolid))
{
m_physicsMap.Cells[obj.Position.X, obj.Position.Y].Transparent = obj.IsTransarent;
}
foreach (Monster m in map.Monsters)
{
m_physicsMap.Cells[m.Position.X, m.Position.Y].Transparent = false;
}
}
// Used when we're only calculating a few points and precalculating is not worth it. Use CalculateForMultipleCalls/Visible
// for the cases where we're checking multiplePositions
public bool VisibleSingleShot(IMapCore map, Point viewPoint, int viewableDistance, Point pointWantToView)
{
// If we're significantly father than our viewableDistance, give up early
if (PointDirectionUtils.NormalDistance(viewPoint, pointWantToView) > viewableDistance + 3) // 3 is arbritray large just to prevent edge effects
return false;
CalculateCore(map, viewPoint, viewableDistance);
return m_physicsMap.Cells[pointWantToView.X, pointWantToView.Y].Visible;
}
private void CalculateCore(IMapCore map, Point viewPoint, int viewableDistance)
{
UpdateFOV(map, viewPoint, viewableDistance);
ShadowCastingFOV.ComputeRecursiveShadowcasting(m_physicsMap, viewPoint.X, viewPoint.Y, viewableDistance, true);
}
public MapFacade(IMapCore core, ISpotUserRepository userRepository)
{
_core = core;
_userRepository = userRepository;
}
