gameoflife.java

Sugarscape模型仿真

		else if(gun.equals(arg))
		{
			GoLconst.flagSugarscape = false;
			int shape[] = { 0,2, 0,3, 1,2, 1,3, 8,3, 8,4, 9,2, 9,4, 10,2, 10,3, 16,4, 16,5, 16,6, 17,4, 18,5, 22,1, 22,2, 23,0, 23,2, 24,0, 24,1, 24,12, 24,13, 25,12, 25,14, 26,12, 34,0, 34,1, 35,0, 35,1, 35,7, 35,8, 35,9, 36,7, 37,8 };
			drawShape( 38, 15, shape );
			return true;
		}
		else if(nextLabel.equals(arg)) // next
		{
			int FEEDBACK_DETAILED = 0;	//provide feedback detail for each citizen
			if(GoLconst.flagSugarscape)
				writeTextArea( cellSpace.nextScape(FEEDBACK_DETAILED) );
			else
				cellSpace.next();

			cellSpace.repaint();
			showGenerations();
			return true;
		}
		else if(startLabel.equals(arg)) // start
		{
			start2();
			startstopButton.setLabel( stopLabel );
			return true;
		}
		else if(stopLabel.equals(arg)) // stop
		{
			stop();
			startstopButton.setLabel( startLabel );
			return true;
		}
		else if(slow.equals(arg)) // slow
		{
			genTime = GoLconst.GRID_REFRESH_SLOW;
			return true;
		}
		else if(fast.equals(arg)) // fast
		{
			genTime = GoLconst.GRID_REFRESH_FAST;
			return true;
		}
		else if(hyper.equals(arg)) // hyperspeed
		{
			genTime = GoLconst.GRID_REFRESH_HYPER;
			return true;
		}
		return false;
	}

	public String getAppletInfo()
	{
		return "Game Of Life v. 1.3\nCopyright 1996-2001 Edwin Martin"
			+ "\nAdditional variations: abraham kannankeril 2003"
			+ "\n\tver. 2.0 implements 'The Sugarscape', based on the book"
			+ "\n\t'Growing Artificial Societies by Joshua M. Epstein & Robert Axtell";
	}

	// show number of generations
	public void showGenerations() {
		if( GoLconst.flagSugarscape )
			genLabel.setText( "Gen'rtn: " + cellSpace.generations
						+ "   Pop'ltn: " + cellSpace.population );
		else
			genLabel.setText( "Gen'rtn: " + cellSpace.generations );
	}

	// draws the shape to canvas
	public void drawShape( int shapeWidth, int shapeHeight, int shape[] )
	{	if ( !cellSpace.drawShape( shapeWidth, shapeHeight, shape ) )
			showStatus( "Shape is too big to fit." );
		else
		{	showStatus( "" );
			cellSpace.repaint();
			showGenerations();
		}
	}

	// draws the shape to canvas
	public void drawRandomShape( )
	{	cellSpace.drawRandomShape( );
		showStatus( "Random grid generated!" );
		cellSpace.repaint();
		showGenerations();
	}

	public synchronized void drawSugarscape( )
	{	writeTextArea( cellSpace.drawSugarscape() );
		//writeTextArea("Initial Sugarscape population " + cellSpace.population + "\n");
		showStatus("Initial Sugarscape population " + cellSpace.population);
		showGenerations();
		cellSpace.repaint();
	}

	public void writeTextArea(String text)
	{	textArea.append(text);	}
	/***This Method implements command-line control for the program***/

	public void actionPerformed(ActionEvent evt)
	{   String text = textField.getText();
		text = text.toUpperCase();

		//**Clear Grid or the Display area**
		if( text.startsWith("CLEAR") )
		{
			if( text.equals("CLEAR GRID") )
			{
				c.select( clear );
				cellSpace.clear();
				cellSpace.repaint();
				showGenerations();
				GoLconst.flagSugarscape = false;
				textArea.append("Sugarscape cleared\n");
			}
			else if( text.equals("CLEAR TEXT") )
			{	textArea.setText("");	}
			else { textArea.append("Clear what?\n");	}
		}

		//**Control Program Pace
		else if( text.equals("HYPER") || text.equals("H") )
		{	genTime = GoLconst.GRID_REFRESH_HYPER;
			speed.select( hyper );
			textArea.append("Switching to Hyper mode!\n");
		}
		else if( text.equals("FAST") || text.equals("F") )
		{	genTime = GoLconst.GRID_REFRESH_FAST;
			speed.select( fast );
			textArea.append("Switching to Fast mode!\n");
		}
		else if( text.equals("SLOW") || text.equals("S") )
		{	genTime = GoLconst.GRID_REFRESH_SLOW;
			speed.select( slow );
			textArea.append("Switching to Slow mode!\n");
		}
		else if( text.equals("STOP") || text.equals("X") )
		{	gameThread.stop();
			gameThread = null;
			startstopButton.setLabel( startLabel );
			textArea.append("Execution paused, type 'START' to continue.\n");
		}
		else if( text.equals("START") || text.equals("GO") ) // start
		{
			start2();
			startstopButton.setLabel( stopLabel );
			textArea.append("Execution started/resumed, type '?' for help.\n");
		}
		else if( text.equals("NEXT") || text.equals("+") ) // start
		{
			int FEEDBACK_DETAILED = 0;	//provide feedback detail for each citizen
			if(GoLconst.flagSugarscape)
				writeTextArea( cellSpace.nextScape(FEEDBACK_DETAILED) );
			else
				cellSpace.next();

			//cellSpace.repaint();
			//showGenerations();
			writeTextArea("Ok\n");
		}

		//**Provide General Help with Interactive Commands**
		else if( text.equals("HELP") || text.equals("?") )
		{	textArea.append(
			"\n\nSugarscape Command-line Options\n" +
			"=============================\n" +
			"START / GO   \t Starts the program run\n" +
			"STOP  / X    \t Pause the program run\n" +
			"CLEAR        \t Stops the run & clears the grid\n" +
			"H / F / S / X\t Controls program pace: Hyper / Fast / Slow / Pause\n" +
			"? / HELP     \t Display this screen\n" +
			"VERSION / INFO\t Display Program Information\n" +
			"\nDebugging Program Execution\n" +
			"--------------------------------------\n" +
			"DEBUG CRITICAL ERROR\tTracks program inconsistencies\n" +
			"DEBUG\t\t\t\tTracks all events in a program\n" +
			"DEBUG PROGRAM FLOW\t\tTraces program process flow\n" +
			"DEBUG CREATE CITIZEN\t\tTraces 'Birth' processes\n" +
			"DEBUG CITIZEN DEATH\t\tTraces 'Death' processes\n" +
			"DEBUG SEARCH SUGAR\t\tTraces each citizen's search for sugar\n" +
			"DEBUG CELLSCAPE SUGAR\tDisplay sugar distribution on Cellscape\n" +
			"DEBUG CITIZEN DETAIL\t\tDisplay Population/Citizen details\n"
			);

			textArea.append("-----------------------------------------------" +
			"-----------------------------------------------\n" +
			"Note: Commands are case-insensitive.\nDebugging options will slow down " +
			"program, especially the 'DEBUG' option\n"	);
		}

		//**Provide Version Info**
		else if( text.equals("VERSION") || text.equals("INFO") )
		{	textArea.append( "Sugarscape Program Info\n"
					+ "-----------------------------------"
					+ "\nVersion\t\t: " + GoLconst.PROGRAM_VERSION
					+ "\nRelease Date\t: " + GoLconst.PROGRAM_RELEASE_DATE + "\n\n"
			);
		}

		//**Display Feedback For Specific Processes**
		else if( text.startsWith("DEBUG") )
		{	if( text.equals("DEBUG CRITICAL ERROR") )
			{
				GoLconst.DEBUG_CRITICAL_ERROR = !GoLconst.DEBUG_CRITICAL_ERROR;
				textArea.append("DEBUG_CRITICAL_ERROR = "
										+ GoLconst.DEBUG_CRITICAL_ERROR + "\n");
			}
			else if( text.equals("DEBUG PROGRAM FLOW") )
			{	GoLconst.DEBUG_PROGRAM_FLOW = !GoLconst.DEBUG_PROGRAM_FLOW;
				textArea.append("DEBUG_PROGRAM_FLOW = "
										+ GoLconst.DEBUG_PROGRAM_FLOW + "\n");
			}
			else if( text.equals("DEBUG CREATE CITIZEN") )
			{	GoLconst.DEBUG_CREATE_CITIZEN = !GoLconst.DEBUG_CREATE_CITIZEN;
				textArea.append("DEBUG_CREATE_CITIZEN = "
										+ GoLconst.DEBUG_CREATE_CITIZEN + "\n");
			}
			else if( text.equals("DEBUG CITIZEN DEATH") )
			{	GoLconst.DEBUG_CITIZEN_DEATH = !GoLconst.DEBUG_CITIZEN_DEATH;
				textArea.append("DEBUG_CITIZEN_DEATH = "
										+ GoLconst.DEBUG_CITIZEN_DEATH + "\n");
			}
			else if( text.equals("DEBUG SEARCH SUGAR") )
			{	GoLconst.DEBUG_SEARCH_SUGAR = !GoLconst.DEBUG_SEARCH_SUGAR;
				textArea.append("DEBUG_SEARCH_SUGAR = "
										+ GoLconst.DEBUG_SEARCH_SUGAR + "\n");
			}
			else if( text.equals("DEBUG CELLSCAPE SUGAR") )
			{	GoLconst.DEBUG_CELLSCAPE_SUGAR = !GoLconst.DEBUG_CELLSCAPE_SUGAR;
				textArea.append("DEBUG_CELLSCAPE_SUGAR = "
										+ GoLconst.DEBUG_CELLSCAPE_SUGAR + "\n");
			}
			else if( text.equals("DEBUG CITIZEN DETAIL") )
			{	GoLconst.DEBUG_CITIZEN_DETAIL = !GoLconst.DEBUG_CITIZEN_DETAIL;
				textArea.append("DEBUG_CITIZEN_DETAIL = "
										+ GoLconst.DEBUG_CITIZEN_DETAIL + "\n");
			}
			else if( text.equals("DEBUG") )
			{	GoLconst.DEBUG = !GoLconst.DEBUG;
				textArea.append("DEBUG = " + GoLconst.DEBUG + "\n");
			}
			else
			{	textArea.append("debug what?\n");	}

		}
		else if( text.startsWith("TEXTAREA")) // adjust display area
		{	String operand="", numStr="";
			int num=0, opIndex;

			if( text.length() > 8 )
			{
				opIndex = text.indexOf("+");
				opIndex = (opIndex < 0) ? text.indexOf("-") : opIndex;
				operand = text.substring( opIndex,opIndex+1 );
				//textArea.append("Operand: " + operand +"("+operand.length()+")"+ "\n");

				if( operand.equals("+") || operand.equals("-") )
				{
					numStr = text.substring(opIndex+1).trim();
					numStr = numStr.equals("") ? numStr = "1" : numStr;
					//textArea.append("Num String: " + numStr
					//		+"("+numStr.length()+")"+ "\n");
					num = Integer.valueOf(numStr).intValue();
				} else
				{	operand = "+";
					num = 0;
					textArea.append("Invalid operand!\n");
				}
			}

			if( operand.equals("+") )
			{	GoLconst.TEXTAREA_HEIGHT += num;		}
			else if( operand.equals("-") )
			{	GoLconst.TEXTAREA_HEIGHT -= num;		}
			textArea.setRows(GoLconst.TEXTAREA_HEIGHT);
			//textArea.setColumns(cellCols*2+1);
			textArea.append("TEXTAREA DIMENSIONS = "
					+ textArea.getRows() + " rows by "
					+ textArea.getColumns() + " cols\n");
			resize( preferredSize() );
		}
		else if( text.equals("SUGARSCAPE") || text.equals("SS") )
		{	// Note: there are 2 drawSugarscape functions
			//	GameOfLife.drawSugarscape() & Cellspace.drawSugarscape()
			c.select( sugarscape );
			GoLconst.flagSugarscape = true;
			drawSugarscape();
		}
		else
		{	textArea.append(text + "?\n");	}

		//textField.selectAll();
		textField.setText("");
		cellSpace.repaint();
		showGenerations();
	}
}