version 1.0 online since July 3 1996
Changes:
1.1: Double buffering to screen; faster paint
1.2: Arrowkeys changed; better use of `synchronized'
1.3: Choose speed from drop down menu and draw with mouse
-------------Sugarscape - Linked List version------------
-------------abraham kannankeril---------------------------
1.4: Added template 'Random'& 'Big Bang' to layout choices
-------------------------xxx-------------------------------
2.0: Add Sugarscape & Citizen objects incorporating a new
& more sophisticated ruleset.
-> a single resource (sugar) is randomly dispersed on the grid (sugarscape)
-> citizens scattered on the sugarscape must collect & consume sugar to ensure survival
-> citizens possess attributes - vision, metabolism & sugar hoard
System-level variables can be manually adjusted via public constants to influence
behavior on the sugarscape.
2.1: Split into multiple files for better manageablity - package GameOfLife
Added system variable DEBUG to switch debug info ON/OFF
2.2: Added visual representation of cell & citizen properties
-> cells shaded to represent available sugar level (low / medium / high)
-> citizen shaded to represent available sugar level (low / medium / high)
-> citizen shape conveys representation of following combined properties
- high vision, high metabolism
- high vision, low metabolism
- low vision, high metabolism
- low vision, low metabolism
2.21 Improved sugar search routine to enable neutral selection between equally fertile cells
and selection of random cell if no sugar available to citizen
Added boolean variables to toggle debugging of selected program functions
Added boolean flag to allow imposition of limits on sugar accumulation in cells and a
corresponding method to depict absolute values of the sugar matrix
Color cues implemented in visual display:
-> Cell color darkens according to sugar accumulated in each cell
-> Citizen color gradually varies from red to orange to yellow to green to represent
the amount of sugar collected
-> Citizen shape varies to depict one of four relative vision/metabolism combinations
-> Grid coordinates can be printed if needed. This includes options to print all or
some coordinates & to select a print color
2.22 All output from the program has now been redirected to a graphical textarea within the
same window as the grid. The earlier dump into STDOUT has been discontinued.
2.30 Eliminated "Active Cell found unexpectedly" error
Eliminated grid sugar renewal problem - now regenerated with new sugarscape
Added debugging variable, DEBUG_PROGRAM_FLOW - enables tracing of method sequence
Added command line interface to enable interactive control of program parameters
2.35 Added mate selection, child birth and death by aging to the Citizen object.
The Citizen object now recognizes familial relationships (sibling, parent, child).
Reworked the debug feedback elements. The program feedback has a much smaller
delay during execution.
Renamed main class/package to Sugarscape to reflect the true name of the project.
2.36 Added climate change, pollution
grid fertility adjustable by season
2.37 Unreleased version, implements the option
- to resize the grid at runtime.
- of timing the major events(gathering & mating).
- of executing a specified number timePeriods via the command-line.
- to inspect data values for any citizen on the grid and the entire population.
- to start/stop climate change & pollution.
-----------------------
2.40 Major design changes resulting from creation of new Cell object.
-> The Cell object is now a subclass of the CellSpace object and a superclass of
the Citizen object.
-> A seperate linked list of references to each citizen is maintained which simplifies
operations involving all citizens, shuffling citizens randomly and locating occupants
of a particular cell.
-> The major benefit of this redesign (suggested by Digvijay Parmar) is in performance.
The resulting code is atleast five times faster than my earlier design.
-> That the code is cleaner & more readable is a welcome by-product.
-> I would also like to express my gratitude to Ms. Richa Parmar, whose expert advice,
eliminated seemingly enormous obstacles for this novice programmer.
BEWARE - the ability to click or drag cells to create/destroy citizens has not been
fully implemented, due to plain laziness :)
2.41 Added command 'DEMO' / 'TEST' to help demonstrate common program features.
-> Add 2nd commodity, SPICE to the Sugarscape. Citizens need both
-> Changed graphics to represent 2nd commodity & color-coded citizens based on type
-> Added variables in GoLconst to enable manipulation of new/modified objects
2.42 Add Barter process to the Sugarscape.
-> Module incorporates internal evaluation, price negotiation and goods exchange.
-> Added 'persona' to citizen - determines Barter strategy. Either maximizing trades
involving single units (risk-taker) or maximizing volume by selling multiple units
in safe trades (risk-averse) strategies. Allows creation of additional strategies.
2.43 Added a tabbed-pane interface to replace the simple TextArea object that was
previously used to display results.
-> Separate panes now display simulation progress data, allow configuration and debugging.
-> Forced to switch from AWT to Swing graphics libraries, applet therefore executes only
in AppletViewer, working to improve the situation.
-> Rectified error in barter processes that caused corruption of trade data.
-> Added time counter for the barter processes.
-> Moved GUI objects to seperate top-level mini-classes within Sugarscape.java to
overcome problems hindering program execution as an applet.
-----------------------------------xxx----------------------------------------
This is the primary class in the Sugarscape project.
Its sub-components include the CellSpace or grid object, the Cell and Citizen objects.
Class Sugarscape sets up the GUI interface, the thread the executes the simulation,
event handlers that control various Game of Life and Sugarscape templates and execute
run-time commands.
- Author:
- abraham kannankeril
parts of code in this class borrowed with permission from
Edwin Martin's Game of Life
- See Also:
- Sugarscape Home,
The Book,
NetLogo Implementation,
Article on Sugarscape,
Article on AI,
eBook - Simulation for the Social Science,
Serialized Form
| Nested classes inherited from class javax.swing.JApplet |
javax.swing.JApplet.AccessibleJApplet |
| Nested classes inherited from class java.applet.Applet |
java.applet.Applet.AccessibleApplet |
| Nested classes inherited from class java.awt.Panel |
java.awt.Panel.AccessibleAWTPanel |
| Nested classes inherited from class java.awt.Container |
java.awt.Container.AccessibleAWTContainer |
| Nested classes inherited from class java.awt.Component |
java.awt.Component.AccessibleAWTComponent, java.awt.Component.BltBufferStrategy, java.awt.Component.FlipBufferStrategy |
| Fields inherited from class javax.swing.JApplet |
accessibleContext, rootPane, rootPaneCheckingEnabled |
| Fields inherited from class java.applet.Applet |
|
| Fields inherited from class java.awt.Panel |
|
| Fields inherited from class java.awt.Container |
|
| Fields inherited from class java.awt.Component |
BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT |
| Fields inherited from interface java.awt.image.ImageObserver |
ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH |
|
Method Summary |
void |
actionControls(java.lang.String arg)
Implements various template options for the Game of Life (multiple) and the
Sugarscape (one) |
void |
actionPerformed(java.awt.event.ActionEvent evt)
This Method implements command-line control for the program. |
void |
createCellPanel()
|
void |
createCitizenPanel()
|
void |
createConfigPanel()
|
void |
createScorePanel()
|
javax.swing.JComboBox |
createSpeedList()
|
void |
createSscapePanel()
|
javax.swing.JComboBox |
createTemplateList()
|
void |
drawRandomShape()
Draws a random template on the Game of Life grid. |
void |
drawShape(int shapeWidth,
int shapeHeight,
int[] shape)
Draws the shape to canvas depending on the template selected for all selections
relating to the Game of Life.
Calls the relevant method in the CellSpace class. |
void |
drawSugarscape(int cellCols,
int cellRows)
Implements the Sugarscape template by calling the relevant method in
the CellSpace class.
Provides the option to specify physical dimensions by passing parameters
for columns and rows through HTML code. |
static java.lang.String |
filler(int size)
|
java.lang.String |
getAppletInfo()
Program info accessible through the menu options of the Appletviewer |
void |
init()
Initialises the GUI including the CellSpace object and starts the
Sugarscape thread. |
void |
run()
This method monitors status of the simulation and stops execution if the population
dies out. |
void |
showGenerations()
Show number of cycles that have executed and the current population count |
void |
start2()
No start() to prevent starting immediately.
This method enables the GUI to initialize and await action from the user
to begin execution, rather than executing as soon as the applet has
finished loading. |
void |
stop()
Pauses the current simulation |
void |
updateCellPanel()
|
void |
updateCitizenPanel()
|
void |
updateConfigPanel()
|
void |
updateScorePanel()
|
void |
updateSscapePanel()
|
| Methods inherited from class javax.swing.JApplet |
addImpl, createRootPane, getAccessibleContext, getContentPane, getGlassPane, getJMenuBar, getLayeredPane, getRootPane, isRootPaneCheckingEnabled, paramString, remove, setContentPane, setGlassPane, setJMenuBar, setLayeredPane, setLayout, setRootPane, setRootPaneCheckingEnabled, update |
| Methods inherited from class java.applet.Applet |
destroy, getAppletContext, getAudioClip, getAudioClip, getCodeBase, getDocumentBase, getImage, getImage, getLocale, getParameter, getParameterInfo, isActive, newAudioClip, play, play, resize, resize, setStub, showStatus, start |
| Methods inherited from class java.awt.Panel |
addNotify |
| Methods inherited from class java.awt.Container |
add, add, add, add, add, addContainerListener, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getAlignmentX, getAlignmentY, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getInsets, getLayout, getListeners, getMaximumSize, getMinimumSize, getPreferredSize, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paint, paintComponents, preferredSize, print, printComponents, processContainerEvent, processEvent, remove, removeAll, removeContainerListener, removeNotify, setFocusCycleRoot, setFocusTraversalKeys, setFocusTraversalPolicy, setFont, transferFocusBackward, transferFocusDownCycle, validate, validateTree |
| Methods inherited from class java.awt.Component |
action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, createVolatileImage, createVolatileImage, disable, disableEvents, dispatchEvent, enable, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBounds, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphics, getGraphicsConfiguration, getHeight, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocation, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getSize, getToolkit, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isDoubleBuffered, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isOpaque, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, printAll, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, reshape, setBackground, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setFocusable, setFocusTraversalKeysEnabled, setForeground, setIgnoreRepaint, setLocale, setLocation, setLocation, setName, setSize, setSize, setVisible, show, show, size, toString, transferFocus, transferFocusUpCycle |
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
bigbang
private final java.lang.String bigbang
- See Also:
- Constant Field Values
blackline
public final javax.swing.border.Border blackline
c
public javax.swing.JComboBox c
- Template Choice and speed control
ce3D
public javax.swing.JTextField ce3D
ceBar
public javax.swing.JTextField ceBar
ceBground
public javax.swing.JTextField ceBground
ceChild
public javax.swing.JTextField ceChild
ceLimitSpice
public javax.swing.JTextField ceLimitSpice
ceLimitSugar
public javax.swing.JTextField ceLimitSugar
cellCols
private int cellCols
cellPanel
public javax.swing.JPanel cellPanel
cellRows
private int cellRows
cellSize
private int cellSize
cellSpace
private CellSpace cellSpace
- The only instance of a CellSpace object in the simulation.
cePolluDispersal
public javax.swing.JTextField cePolluDispersal
cePolluSpice
public javax.swing.JTextField cePolluSpice
cePolluSugar
public javax.swing.JTextField cePolluSugar
ceRenewSpSummer
public javax.swing.JTextField ceRenewSpSummer
ceRenewSpWinter
public javax.swing.JTextField ceRenewSpWinter
ceRenewSuSummer
public javax.swing.JTextField ceRenewSuSummer
ceRenewSuWinter
public javax.swing.JTextField ceRenewSuWinter
ceSenior
public javax.swing.JTextField ceSenior
ceSpiceMax
public javax.swing.JTextField ceSpiceMax
ceSpiceMin
public javax.swing.JTextField ceSpiceMin
ceSugarMax
public javax.swing.JTextField ceSugarMax
ceSugarMin
public javax.swing.JTextField ceSugarMin
ciInheritInitial
public javax.swing.JTextField ciInheritInitial
ciKinMate
public javax.swing.JTextField ciKinMate
ciLifeMax
public javax.swing.JTextField ciLifeMax
ciLifeMin
public javax.swing.JTextField ciLifeMin
ciMateFemaleGap
public javax.swing.JTextField ciMateFemaleGap
ciMateFemaleMax
public javax.swing.JTextField ciMateFemaleMax
ciMateFemaleMin
public javax.swing.JTextField ciMateFemaleMin
ciMateMaleGap
public javax.swing.JTextField ciMateMaleGap
ciMateMaleMax
public javax.swing.JTextField ciMateMaleMax
ciMateMaleMin
public javax.swing.JTextField ciMateMaleMin
ciPersona
public javax.swing.JTextField ciPersona
ciSex
public javax.swing.JTextField ciSex
ciSpicePoor
public javax.swing.JTextField ciSpicePoor
ciSpMax
public javax.swing.JTextField ciSpMax
ciSpMetab
public javax.swing.JTextField ciSpMetab
ciSpMin
public javax.swing.JTextField ciSpMin
ciSugarPoor
public javax.swing.JTextField ciSugarPoor
ciSuMax
public javax.swing.JTextField ciSuMax
ciSuMetab
public javax.swing.JTextField ciSuMetab
ciSuMin
public javax.swing.JTextField ciSuMin
ciSurnamesFather
public javax.swing.JTextField ciSurnamesFather
ciSurnamesUnique
public javax.swing.JTextField ciSurnamesUnique
citizenPanel
public javax.swing.JPanel citizenPanel
ciVision
public javax.swing.JTextField ciVision
clear
private final java.lang.String clear
- See Also:
- Constant Field Values
configPanel
public javax.swing.JPanel configPanel
controls
public javax.swing.JPanel controls
deBarter
public javax.swing.JTextField deBarter
deBarterExchange
public javax.swing.JTextField deBarterExchange
deBarterSort
public javax.swing.JTextField deBarterSort
deChildBirth
public javax.swing.JTextField deChildBirth
deCitizenBirth
public javax.swing.JTextField deCitizenBirth
deCitizenDeath
public javax.swing.JTextField deCitizenDeath
deCmdFeedback
public javax.swing.JTextField deCmdFeedback
deCriticalError
public javax.swing.JTextField deCriticalError
deDebug
public javax.swing.JTextField deDebug
deInheritance
public javax.swing.JTextField deInheritance
deMateSearch
public javax.swing.JTextField deMateSearch
deMateSelection
public javax.swing.JTextField deMateSelection
deMating
public javax.swing.JTextField deMating
dePollution
public javax.swing.JTextField dePollution
deProductionSpice
public javax.swing.JTextField deProductionSpice
deProductionSugar
public javax.swing.JTextField deProductionSugar
deProgFlow
public javax.swing.JTextField deProgFlow
deSugarSearch
public javax.swing.JTextField deSugarSearch
deTime
public javax.swing.JTextField deTime
doubleBlack
public final javax.swing.border.Border doubleBlack
exploder1
private final java.lang.String exploder1
- See Also:
- Constant Field Values
exploder2
private final java.lang.String exploder2
- See Also:
- Constant Field Values
fast
private final java.lang.String fast
- See Also:
- Constant Field Values
fish
private final java.lang.String fish
- See Also:
- Constant Field Values
gameThread
private java.lang.Thread gameThread
genLabel
private javax.swing.JLabel genLabel
genTime
private int genTime
glider
private final java.lang.String glider
- See Also:
- Constant Field Values
gun
private final java.lang.String gun
- See Also:
- Constant Field Values
historyPanel
public javax.swing.JPanel historyPanel
hyper
private final java.lang.String hyper
- See Also:
- Constant Field Values
nextButton
public javax.swing.JButton nextButton
nextLabel
private final java.lang.String nextLabel
- Label for buttons
- See Also:
- Constant Field Values
paneEdge
public final javax.swing.border.Border paneEdge
pump
private final java.lang.String pump
- See Also:
- Constant Field Values
random
private final java.lang.String random
- See Also:
- Constant Field Values
row10
private final java.lang.String row10
- See Also:
- Constant Field Values
scAvgAge
public javax.swing.JTextField scAvgAge
scAvgLifespan
public javax.swing.JTextField scAvgLifespan
scAvgSpice
public javax.swing.JTextField scAvgSpice
scAvgSpMetab
public javax.swing.JTextField scAvgSpMetab
scAvgSugar
public javax.swing.JTextField scAvgSugar
scAvgSuMetab
public javax.swing.JTextField scAvgSuMetab
scAvgVision
public javax.swing.JTextField scAvgVision
scBirths
public javax.swing.JTextField scBirths
scDeaths
public javax.swing.JTextField scDeaths
scDensity
public javax.swing.JTextField scDensity
scDistAdults
public javax.swing.JTextField scDistAdults
scDistChildren
public javax.swing.JTextField scDistChildren
scDistFemale
public javax.swing.JTextField scDistFemale
scDistMale
public javax.swing.JTextField scDistMale
scDistSeniors
public javax.swing.JTextField scDistSeniors
scDistSummer
public javax.swing.JTextField scDistSummer
scDistWinter
public javax.swing.JTextField scDistWinter
scEff
public javax.swing.JTextField scEff
scHyp
public javax.swing.JTextField scHyp
scHypSp
public javax.swing.JTextField scHypSp
scHypSu
public javax.swing.JTextField scHypSu
scInEff
public javax.swing.JTextField scInEff
scOldAge
public javax.swing.JTextField scOldAge
scorePanel
public javax.swing.JPanel scorePanel
scPerCycle
public javax.swing.JTextField scPerCycle
scProcGather
public javax.swing.JTextField scProcGather
scProcMate
public javax.swing.JTextField scProcMate
scProcMisc
public javax.swing.JTextField scProcMisc
scProcTrade
public javax.swing.JTextField scProcTrade
scRiskAverse
public javax.swing.JTextField scRiskAverse
scRiskTaker
public javax.swing.JTextField scRiskTaker
scSlow
public javax.swing.JTextField scSlow
scSlowSp
public javax.swing.JTextField scSlowSp
scSlowSu
public javax.swing.JTextField scSlowSu
scStarved
public javax.swing.JTextField scStarved
slow
private final java.lang.String slow
- Speed settings for the simulation
- See Also:
- Constant Field Values
speed
public javax.swing.JComboBox speed
- Template Choice and speed control
sScapePanel
public javax.swing.JPanel sScapePanel
ssCols
public javax.swing.JTextField ssCols
ssCoordColor
public javax.swing.JTextField ssCoordColor
ssCoordDetail
public javax.swing.JTextField ssCoordDetail
ssCoordShow
public javax.swing.JTextField ssCoordShow
ssCoordSize
public javax.swing.JTextField ssCoordSize
ssDensity
public javax.swing.JTextField ssDensity
ssFertSpice
public javax.swing.JTextField ssFertSpice
ssFertSugar
public javax.swing.JTextField ssFertSugar
ssMaxCols
public javax.swing.JTextField ssMaxCols
ssMaxRows
public javax.swing.JTextField ssMaxRows
ssPanelHeight
public javax.swing.JTextField ssPanelHeight
ssPanelMax
public javax.swing.JTextField ssPanelMax
ssPanelMin
public javax.swing.JTextField ssPanelMin
ssProcGather
public javax.swing.JTextField ssProcGather
ssProcInherit
public javax.swing.JTextField ssProcInherit
ssProcMate
public javax.swing.JTextField ssProcMate
ssProcPollution
public javax.swing.JTextField ssProcPollution
ssProcSeasons
public javax.swing.JTextField ssProcSeasons
ssProcTrade
public javax.swing.JTextField ssProcTrade
ssRows
public javax.swing.JTextField ssRows
ssSeasonDuration
public javax.swing.JTextField ssSeasonDuration
startLabel
private final java.lang.String startLabel
- See Also:
- Constant Field Values
startstopButton
public javax.swing.JButton startstopButton
stopLabel
private final java.lang.String stopLabel
- See Also:
- Constant Field Values
sugarscape
private final java.lang.String sugarscape
- See Also:
- Constant Field Values
tabPanel
public javax.swing.JTabbedPane tabPanel
textArea
private javax.swing.JTextArea textArea
textField
private javax.swing.JTextField textField
Sugarscape
public Sugarscape()
actionControls
public void actionControls(java.lang.String arg)
- Implements various template options for the Game of Life (multiple) and the
Sugarscape (one)
- Parameters:
arg -
- Returns:
- return boolean, always true
actionPerformed
public void actionPerformed(java.awt.event.ActionEvent evt)
- This Method implements command-line control for the program. It enables
manipulation of program parameters that are otherwise only configurable
in the GoLconst.java source file.
Accepts text commands in a textfield at the bottom of the Sugarscape GUI.
Users can type 'help' in this field for a reference list of commands.
- Specified by:
actionPerformed in interface java.awt.event.ActionListener
- Parameters:
evt -
createCellPanel
public void createCellPanel()
createCitizenPanel
public void createCitizenPanel()
createConfigPanel
public void createConfigPanel()
createScorePanel
public void createScorePanel()
createSpeedList
public javax.swing.JComboBox createSpeedList()
createSscapePanel
public void createSscapePanel()
createTemplateList
public javax.swing.JComboBox createTemplateList()
drawRandomShape
public void drawRandomShape()
- Draws a random template on the Game of Life grid.
Calls the relevant method in the CellSpace class.
drawShape
public void drawShape(int shapeWidth,
int shapeHeight,
int[] shape)
- Draws the shape to canvas depending on the template selected for all selections
relating to the Game of Life.
Calls the relevant method in the CellSpace class.
- Parameters:
shapeWidth - defines the max width of the requested templateshapeHeight - defines the max height of the requested templateshape - boolean array that defines exact shape to be drawn
for a given template.
drawSugarscape
public void drawSugarscape(int cellCols,
int cellRows)
- Implements the Sugarscape template by calling the relevant method in
the CellSpace class.
Provides the option to specify physical dimensions by passing parameters
for columns and rows through HTML code. This applies to webpages executing
the program as an applet.
- Parameters:
cellCols - number of columns passed as parameters by a parent webpage.cellRows - number of rows passed as parameters by a parent webpage.- See Also:
CellSpace.CellSpace(int, int, int, JTextArea)
filler
public static java.lang.String filler(int size)
getAppletInfo
public java.lang.String getAppletInfo()
- Program info accessible through the menu options of the Appletviewer
- Returns:
- program information - this information is displayed when the user types "INFO"
at the command line of the Sugarscape.
init
public void init()
- Initialises the GUI including the CellSpace object and starts the
Sugarscape thread.
run
public void run()
- This method monitors status of the simulation and stops execution if the population
dies out.
It continues the next cycle until interrupted by the user.
It also controls the pace of execution of the simulation at one of three speeds
- Specified by:
run in interface java.lang.Runnable
showGenerations
public void showGenerations()
- Show number of cycles that have executed and the current population count
start2
public void start2()
- No start() to prevent starting immediately.
This method enables the GUI to initialize and await action from the user
to begin execution, rather than executing as soon as the applet has
finished loading.
stop
public void stop()
- Pauses the current simulation
updateCellPanel
public void updateCellPanel()
updateCitizenPanel
public void updateCitizenPanel()
updateConfigPanel
public void updateConfigPanel()
updateScorePanel
public void updateScorePanel()
updateSscapePanel
public void updateSscapePanel()
java.awt.Component