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Class life.Grid

java.lang.Object
   |
   +----life.Grid

public class Grid
extends Object

A two-dimensional grid of Cells.

FILL_ALIVE: Fill the Grid with living cells.
FILL_DEAD: Fill the Grid with dead cells.
FILL_RANDOM: Fill the Grid randomly.
maxAge: The maximum age of Cells in the Grid.
OLD_ALIVE: Used to construct living Cells with maximum age.
OLD_DEAD: Used to construct dead Cells with maximum age.

Grid(int, int): Construct a new Grid of specified width and height and fill the Grid with dead Cells.
Grid(int, int, int): Construct a new Grid of specified width and height and fill the Grid's Cells.

fill(int): Fill the Grid with dead cells, living cells, or with a random pattern.
getAge(int, int): Get the age of the Cell at the specified x-y coordinates.
getMaxAge(): Get the maximum age for this Grid.
isAlive(int, int): Is the Cell at the specified x-y coordinates alive?
neighbors(int, int, boolean): Calculate how many neighbors a Cell has.
nextGen(int, int, boolean, int, boolean): Produce the next generation of a Cell.
setCell(int, int, Grid. Cell): Set the Cell at the specified x-y coordinate to a given Cell.
setMaxAge(int): Set the maximum age for this Grid.
setOldAlive(int, int): Set the Cell at the specified x-y coordinates to a living Cell of maximum age.
setOldDead(int, int): Set the Cell at the specified x-y coordinates to a dead Cell of maximum age.
setSize(int, int, boolean): Set the width and height of the Grid.

maxAge

 protected int maxAge

The maximum age of Cells in the Grid.

OLD_ALIVE

 public static final int OLD_ALIVE

Used to construct living Cells with maximum age.

OLD_DEAD

 public static final int OLD_DEAD

Used to construct dead Cells with maximum age.

FILL_DEAD

 public static final int FILL_DEAD

Fill the Grid with dead cells.

FILL_ALIVE

 public static final int FILL_ALIVE

Fill the Grid with living cells.

FILL_RANDOM

 public static final int FILL_RANDOM

Fill the Grid randomly.

Grid

 public Grid(int width,
             int height,
             int how)

Construct a new Grid of specified width and height and fill the Grid's Cells.

Parameters:: width - The width of the Grid.; height - The height of the Grid.; how - Indicates how to fill the Grid.
See Also:: fill

Grid

 public Grid(int width,
             int height)

Construct a new Grid of specified width and height and fill the Grid with dead Cells.

Parameters:: width - The width of the Grid.; height - The height of the Grid.

setCell

 public final void setCell(int x,
                           int y,
                           Grid. Cell c)

Set the Cell at the specified x-y coordinate to a given Cell.

Parameters:: x - The x coordinate.; y - The y coordinate.; c - The Cell to use.

setSize

 public void setSize(int w,
                     int h,
                     boolean zoom)

Set the width and height of the Grid.

Parameters:: w - The width.; h - The height.; zoom - This setSize operation is the result of the user zooming in or out.

getMaxAge

 public final int getMaxAge()

Get the maximum age for this Grid.

setMaxAge

 public void setMaxAge(int maxAge)

Set the maximum age for this Grid.

Parameters:: maxAge - The maximum age.

nextGen

 public boolean nextGen(int x,
                        int y,
                        boolean newAlive,
                        int currentAge,
                        boolean currentAlive)

Produce the next generation of a Cell.

Parameters:: x - The x coordinate of the Cell.; y - The y coordinate of the Cell.; newAlive - The alive value to assign to the Cell.; currentAge - The current age of the Cell.; currentAlive - The current alive value of the Cell.
Returns:: Indicates whether the current generation differs from the previous generation in alive or age.

fill

 public void fill(int how)

Fill the Grid with dead cells, living cells, or with a random pattern.

Parameters:: how - How to fill the Grid (with living cells, dead cells, or randomly.

neighbors

 public int neighbors(int x,
                      int y,
                      boolean wraparound)

Calculate how many neighbors a Cell has.

Parameters:: x - The x coordinate of the Cell.; y - The y coordinate of the Cell.; wraparound - Whether to wrap around the Grid when counting neighbors.

isAlive

 public final boolean isAlive(int x,
                              int y)

Is the Cell at the specified x-y coordinates alive?

Parameters:: x - The x coordinate of the Cell.; y - The y coordinate of the Cell.

getAge

 public final int getAge(int x,
                         int y)

Get the age of the Cell at the specified x-y coordinates.

Parameters:: x - The x coordinate of the Cell.; y - The y coordinate of the Cell.

setOldAlive

 public final void setOldAlive(int x,
                               int y)

Set the Cell at the specified x-y coordinates to a living Cell of maximum age.

Parameters:: x - The x coordinate of the Cell.; y - The y coordinate of the Cell.

setOldDead

 public final void setOldDead(int x,
                              int y)

Set the Cell at the specified x-y coordinates to a dead Cell of maximum age.

Parameters:: x - The x coordinate of the Cell.; y - The y coordinate of the Cell.

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