private bool TryGetBestStepToItem(LevelView level, out Location locationToStep)
{
locationToStep = FindByDijkstra(level, IsToConsider, GetCost);
return(locationToStep != default(Location));
bool IsToConsider(Location location)
{
level.Player.TryGetEquippedItem(out var item);
return(level.GetItemAt(location).HasValue&&
level.GetItemAt(location).AttackBonus > item.AttackBonus &&
level.GetItemAt(location).DefenceBonus > item.DefenceBonus);
}
int GetCost(Location location)
{
if (level.Field[location] == CellType.Wall ||
level.Field[location] == CellType.Trap ||
level.GetMonsterAt(location).HasValue)
{
return(100);
}
if (level.GetItemAt(location).HasValue)
{
level.Player.TryGetEquippedItem(out var item);
if (level.GetItemAt(location).AttackBonus > item.AttackBonus &&
level.GetItemAt(location).DefenceBonus > item.DefenceBonus)
{
return(0);
}
return(100);
}
if (level.Field[location] == CellType.Exit)
{
return(0);
}
if (level.Field[location] == CellType.Empty || level.Field[location] == CellType.PlayerStart)
{
return(10 - GetNeighbours(location, NeighbourType.Eight)
.Count(x => level.Field[x] == CellType.Trap ||
level.Field[x] == CellType.Wall));
}
if (level.Field[location] == CellType.Hidden)
{
return(10);
}
throw new ArgumentOutOfRangeException(nameof(location));
}
}
private static bool IsPassable(Location location, LevelView levelView)
{
var isObject = levelView.GetHealthPackAt(location).HasValue ||
levelView.GetMonsterAt(location).HasValue ||
levelView.GetItemAt(location).HasValue;
var isEmpty = levelView.Field[location] == CellType.Empty ||
levelView.Field[location] == CellType.PlayerStart;
return(!isObject && isEmpty);
}
public static bool IsStepValid(this Location to, LevelView view)
{
if (to.X < 0 || to.X >= view.Field.Width ||
to.Y < 0 || to.Y >= view.Field.Height)
{
return(false);
}
return(view.Field[to] != CellType.Trap &&
view.Field[to] != CellType.Wall &&
view.Field[to] != CellType.Exit &&
!view.GetMonsterAt(to).HasValue &&
!view.GetItemAt(to).HasValue);
}
private bool TryGetBestStepToHealth(LevelView level, out Location locationToStep)
{
locationToStep = FindByDijkstra(level, IsToConsider, GetCost);
return(locationToStep != default(Location));
bool IsToConsider(Location location)
{
return(level.GetHealthPackAt(location).HasValue ||
location == _exit && _exit != default(Location) ||
GetNeighbours(location, NeighbourType.Four)
.Any(y => level.Field[y] == CellType.Hidden && _hiddenYet.Contains(y)));
}
int GetCost(Location location)
{
if (level.Field[location] == CellType.Wall ||
level.Field[location] == CellType.Trap ||
level.GetMonsterAt(location).HasValue ||
level.GetItemAt(location).HasValue)
{
return(100);
}
if (level.Field[location] == CellType.Exit ||
level.GetHealthPackAt(location).HasValue)
{
return(0);
}
if (level.Field[location] == CellType.Empty || level.Field[location] == CellType.PlayerStart)
{
return(10 - GetNeighbours(location, NeighbourType.Eight)
.Count(x => level.Field[x] == CellType.Trap ||
level.Field[x] == CellType.Wall));
}
if (level.Field[location] == CellType.Hidden)
{
return(10);
}
throw new ArgumentOutOfRangeException(nameof(location));
}
}