edu.kzoo.grid
Class ArrayListGrid.Unbounded
java.lang.Object

+edu.kzoo.grid.Grid

+edu.kzoo.grid.ArrayListGrid.Unbounded
 Enclosing class:
 ArrayListGrid
 public static class ArrayListGrid.Unbounded
 extends Grid
An ArrayListGrid.Unounded
object is an unbounded
twodimensional container data structure implemented as
an ArrayList
of the objects it contains. It can contain
any kind of object that can be modeled using an extension of the
GridObject
class. For example, a bounded grid could
be used to model a board for a tictactoe or chess game, an
environment of fish for a marine biology simulation, etc.
ArrayListGrid.Unbounded
methods have the
following time and space characteristics:
numObjects   O(1 ) 
allObjects   O(n ) 
isEmpty, objectAt   O(n ) 
add   O(1 ) [amortized] 
remove   O(n ) 
space   O(n ) 
where n
is the number of objects in the grid.
Method Summary 
int 
numCols()
Returns number of columns in this grid. 
int 
numRows()
Returns number of rows in this grid. 
Methods inherited from class edu.kzoo.grid.Grid 
add, allObjects, getDirection, getNeighbor, isEmpty, isValid, neighborsOf, numAdjacentNeighbors, numObjects, objectAt, randomDirection, remove, remove, removeAll, toString 
Methods inherited from class java.lang.Object 
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait 
ArrayListGrid.Unbounded
public ArrayListGrid.Unbounded()
 Constructs an empty ArrayListGrid.Unbounded object.
A cell's neighbors include only the cells to its north, south,
east, and west, not the cells on the diagonals.
(Precondition:
rows > 0
and cols > 0
.)
ArrayListGrid.Unbounded
public ArrayListGrid.Unbounded(boolean includeDiagonalNeighbors)
 Constructs an empty ArrayListGrid.Unbounded object.
Each cell in this grid will have at most four or eight
adjacent neighbors, depending on the value of the
includeDiagonalNeighbors
parameter. If
includeDiagonalNeighbors
is true
,
a cell's adjacent neighbors include the cells to its north,
south, east, and west and the cells on the diagonals, to
the northeast, southeast, northwest, and southwest. If
includeDiagonalNeighbors
is false
,
a cell's adjacent neighbors include only the four cells to
its north, south, east, and west.
(Precondition: rows > 0
and cols > 0
.)
 Parameters:
includeDiagonalNeighbors
 whether to include the four
diagonal locations as neighbors
numRows
public int numRows()
 Returns number of rows in this grid.
 Specified by:
numRows
in class Grid
 Returns:
 the number of rows, or UNBOUNDED if the grid is unbounded
numCols
public int numCols()
 Returns number of columns in this grid.
 Specified by:
numCols
in class Grid
 Returns:
 the number of columns, or UNBOUNDED if the grid is unbounded