public ObservationSpaceViewModel GetSpaceByPosition(ObservationRowViewModel row, int position)
{
if (row == null)
{
return(null);
}
var space = row.ObservationSpaces.Where(p => p.Position == position).FirstOrDefault();
return(space);
}
private int GetAdjacentSpace(
ObservationRowViewModel row,
ObservationSpaceViewModel space,
WallClickedEventArgs e)
{
switch (e.WallName.ToLowerInvariant())
{
case "left":
if (row.ObservationSpaces[0].Position == e.Position)
{
return(-1);
}
else
{
return(e.Position - 1);
}
case "right":
if (row.ObservationSpaces[row.ObservationSpaces.Count - 1].Position == e.Position)
{
return(-1);
}
else
{
return(e.Position + 1);
}
case "top":
if (row.RowIndex == 0)
{
return(-1);
}
else
{
return(e.Position - Maze.Columns);
}
case "bottom":
if (row.RowIndex == Maze.Rows - 1)
{
return(-1);
}
else
{
return(e.Position + Maze.Columns);
}
default:
return(-1);
}
}
public virtual void InitializeMaze()
{
int position = 0;
ObservableCollection <ObservationRowViewModel> rows = new ObservableCollection <ObservationRowViewModel>();
if (Maze == null)
{
return;
}
if (Maze.Rows == 0)
{
return;
}
for (int i = 0; i < Maze.Rows; i++)
{
var row = new ObservationRowViewModel();
row.RowIndex = i;
row.ObservationSpaces = new ObservableCollection <ObservationSpaceViewModel>();
for (int j = 0; j < Maze.Columns; j++)
{
var observationSpace = new ObservationSpaceViewModel();
observationSpace.Position = position;
observationSpace.WallClicked += ObservationSpace_WallClicked;
if (Maze.TerminalStates.Contains(position))
{
observationSpace.IsGoal = true;
}
if (position == Maze.GetInitialState())
{
observationSpace.IsStart = true;
}
var reward = Maze.AdditionalRewards.Where(p => p.State == position).FirstOrDefault();
if (reward != null)
{
observationSpace.Reward = reward.Value;
}
row.ObservationSpaces.Add(observationSpace);
position++;
}
rows.Add(row);
}
ObservationRows = rows;
SetObstructions();
var goalSpace = GetSpaceByPosition(Maze.GoalPosition);
if (goalSpace != null)
{
goalSpace.IsGoal = true;
}
}
