// assuming that we are always either in the same row or column
public static Direction GetDirection(Grid source, Grid destination)
{
if (source.Col == destination.Col && source.Row == destination.Row)
{
return Direction.None;
}
if (source.Col == destination.Col)
{
if (source.Row < destination.Row)
{
return Direction.Down;
}
else
{
return Direction.Up;
}
}
else
{
if (source.Col < destination.Col)
{
return Direction.Right;
}
else
{
return Direction.Left;
}
}
}
public static Grid GetBackOf(Grid currentGrid, Direction facingDirection)
{
Grid targetGrid = currentGrid;
if (facingDirection == Direction.Up)
{
targetGrid.Row += 1;
}
else if (facingDirection == Direction.Down)
{
targetGrid.Row -= 1;
}
else if (facingDirection == Direction.Left)
{
targetGrid.Col += 1;
}
else if (facingDirection == Direction.Right)
{
targetGrid.Col -= 1;
}
else // None
{
}
return targetGrid;
}
public bool InRange(Grid grid)
{
if (grid.Row < 0 || grid.Col < 0 || grid.Row >= Tiles.GetLength(0) || grid.Col >= Tiles.GetLength(1))
{
return false;
}
return true;
}
public Tile GetTile(Grid grid)
{
if (!InRange(grid))
{
return null;
}
return Tiles[grid.Row, grid.Col];
}
public bool CanPlace(Grid g)
{
if (!InRange(g))
{
return false;
}
if (Tiles[g.Row, g.Col].IsExit)
{
return false;
}
foreach (Unit u in Humans)
{
if (u.TargetGrid == g || u.CurrentGrid == g)
{
return false;
}
}
return true;
}
public void PlaceTile(Tile NextTile, Grid g)
{
NextTile.CurrentGrid = g;
Tiles[g.Row, g.Col] = NextTile;
}
public void Kidnap(Unit unit)
{
Grid grid = new Grid(rng.Next(4,8),rng.Next(4,8));
unit.SetGrid(grid);
unit.ContainingMaze = this;
Humans.Add(unit);
}
public Grid PointToGrid(Point p)
{
Grid g = new Grid((int)p.Y / MazeMaster.TileSize, (int)p.X / MazeMaster.TileSize);
return g;
}
public void PlaceTile(Grid g)
{
if (CurrentMaze.CanPlace(g))
{
CurrentMaze.PlaceTile(NextTile, g);
RandomNext();
}
}