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## uchicago.src.repastdemos.life
Class LifeSpace

    java.lang.Object
      uchicago.src.repastdemos.life.LifeSpace

All Implemented Interfaces:
  Space

    public class LifeSpace

extends java.lang.Object
implements Space

A grid space for LifeAgents. Agents inhabit the grid cells. This class is responsible for creating new LifeAgents in those cells that have 3 and only 3 LifeAgents for neighbors. This is a bounded grid, that is optionally toriodal.

Constructor Summary
`LifeSpace(int xSize, int ySize, boolean toriodal, LifeModel model)` Creates this LifeSpace of the specified width (xSize) and height (ySize).

Method Summary
`void` | `addAgent(LifeAgent agent)` Adds the agent at its coordinates.
`Displayable` | `getDisplay()` Returns the Displayable appropriate for this space.
`int` | `getNumNeighbors(int x, int y)` Returns the number of LifeAgents around the x, y coordinate.
`int` | `getXSize()` Returns the width of this LifeSpace.
`int` | `getYSize()` Returns the height of this LifeSpace.
`boolean` | `isEmptyAt(int x, int y)` Returns true if the cell at the specified coordinates is empty.
`void` | `remove(LifeAgent agent)` Removes an agent from this space.
`void` | `removeAgentAt(int x, int y)` Removes the agent at the specified coordinates.
`void` | `step(java.util.ArrayList list)` Iterates through each cell, if the cell is empty and has 3 neighbors then new agent there.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### LifeSpace

    public LifeSpace(int xSize,
                     int ySize,
                     boolean toriodal,
                     LifeModel model)

  Creates this LifeSpace of the specified width (xSize) and height (ySize).

Method Detail

### getXSize

    public int getXSize()

  Returns the width of this LifeSpace.

  Specified by:
    `getXSize` in interface `Space`

### getYSize

    public int getYSize()

  Returns the height of this LifeSpace.

  Specified by:
    `getYSize` in interface `Space`

### remove

    public void remove(LifeAgent agent)

  Removes an agent from this space. Actual removal is not performed until after all step() methods have completed.

  Specified by:
    `remove` in interface `Space`

### removeAgentAt

    public void removeAgentAt(int x,
                              int y)

  Removes the agent at the specified coordinates. This occurs immediately.

  Specified by:
    `removeAgentAt` in interface `Space`

### addAgent

    public void addAgent(LifeAgent agent)

  Adds the agent at its coordinates.

  Specified by:
    `addAgent` in interface `Space`

### getNumNeighbors

    public int getNumNeighbors(int x,
                               int y)

  Returns the number of LifeAgents around the x, y coordinate. This is a Moore neighborhood.

  Specified by:
    `getNumNeighbors` in interface `Space`

### getDisplay

    public Displayable getDisplay()

  Returns the Displayable appropriate for this space. In this case, this returns an Object2DDisplay.

  Specified by:
    `getDisplay` in interface `Space`

### isEmptyAt

    public boolean isEmptyAt(int x,
                             int y)

  Returns true if the cell at the specified coordinates is empty.

  Specified by:
    `isEmptyAt` in interface `Space`

### step

    public void step(java.util.ArrayList list)

  Iterates through each cell, if the cell is empty and has 3 neighbors then new agent there.

  Specified by:
    `step` in interface `Space`

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