在JAVA GUI（Eclipse的）生命

Question

的遊戲

以下更改色彩是康威生命遊戲的代碼，雖然該方案完全

運行在黑白打印GUI塊。如何更改它的代碼打印出紅（死）和綠色（活的），而不是

public class GameofLife { 
    private static final long serialVersionUID = 1L; 

    public static int frameSize = 360; 
    public static String title = "Game Of Life"; 

    public Random r = new Random(); 
    public int gridSize = 100; 
    public double generationSpeed = 20.0; 

    public BufferedImage image; 
    public int[] pixels; 

    public boolean[] cGrid; 
    public boolean[] pGrid; 

    public GameofLife() { 
     Dimension d = new Dimension(frameSize, frameSize); 
     setMinimumSize(d); 
     setMaximumSize(d); 
     setPreferredSize(d); 

     image = new BufferedImage(gridSize, gridSize, BufferedImage.TYPE_INT_RGB); 
     pixels = ((DataBufferInt) image.getRaster().getDataBuffer()).getData(); 
    } 

    public void start() { 
     cGrid = new boolean[pixels.length]; 
     pGrid = new boolean[pixels.length]; 

     for (int i = 0; i < cGrid.length; i++) 
     cGrid[i] = r.nextInt(100)/100.0 > 0.8 ? true: false; 

     new Thread(this).start(); 
    } 

    public void run() { 
     double frameCut = 1000000000.0/generationSpeed; 

     long currentTime = System.nanoTime();; 
     long previouseTime = currentTime; 
     long passedTime = 0; 

     double unprocessedTime = 0.0; 

     long frameCounter = System.currentTimeMillis(); 
     int generations = 1; 

     while (true) { 
      previouseTime = currentTime; 
      currentTime = System.nanoTime(); 
      passedTime = currentTime - previouseTime; 

      unprocessedTime += passedTime; 

      if (unprocessedTime > frameCut) { 
       unprocessedTime = 0; 
       update(); 
       generations++; 
      } 

      if (System.currentTimeMillis() - frameCounter >= 1000) { 
       frameCounter = System.currentTimeMillis(); 

      } 

      render(); 
     } 
    } 

    public void update() { 
     for (int i = 0; i < pixels.length; i++) 
     pGrid[i] = cGrid[i]; 

     for (int y = 0; y < gridSize; y++) { 
      for (int x = 0; x < gridSize; x++) { 
       int res = 0; 

       int xx0 = x - 1; 
       int yy0 = y - 1; 
       int xx1 = x + 1; 
       int yy1 = y + 1; 

       if (x != 0) res += pGrid[xx0 + gridSize * y] ? 1 : 0; 
       if (y != 0) res += pGrid[x + gridSize * yy0] ? 1 : 0; 
       if (x != gridSize - 1) res += pGrid[xx1 + gridSize * y] ? 1 : 0; 
       if (y != gridSize - 1) res += pGrid[x + gridSize * yy1] ? 1 : 0; 
       if (x != 0 && y != 0) res += pGrid[xx0 + gridSize * yy0] ? 1 : 0; 
       if (x != 0 && y != gridSize - 1) res += pGrid[xx0 + gridSize * yy1] ? 1 : 0; 
       if (x != gridSize - 1 && y != 0) res += pGrid[xx1 + gridSize * yy0] ? 1 : 0; 
       if (x != gridSize - 1 && y != gridSize - 1) res += pGrid[xx1 + gridSize * yy1] ? 1 : 0; 

       if (! (pGrid[x + gridSize * y] && (res == 3 || res == 2))) cGrid[x + gridSize * y] = false; 
       if (!pGrid[x + gridSize * y] && res == 3) cGrid[x + gridSize * y] = true; 
      } 
     } 
    } 

    public void render() { 
     BufferStrategy bs = getBufferStrategy(); 
     if (bs == null) { 
      createBufferStrategy(3); 
      return; 
     } 

     Graphics g = bs.getDrawGraphics(); 

     for (int i = 0; i < pixels.length; i++) 
     pixels[i] = 0; 

     for (int i = 0; i < pixels.length; i++) 
     pixels[i] = cGrid[i] ? 0xffffff: 0; 

     g.drawImage(image, 0, 0, frameSize, frameSize, null); 
     g.dispose(); 
     bs.show(); 
    } 

    public static void main(String[] args) { 
     JFrame frame = new JFrame(); 
     frame.setTitle(title); 
     frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
     frame.setResizable(false); 
     frame.setAlwaysOnTop(true); 

     GameofLife gol = new GameofLife(); 
     frame.add(gol); 
     frame.pack(); 
     frame.setLocationRelativeTo(null); 

     frame.setVisible(true); 

     gol.start(); 
    } 
} 

Answer 1

顏色設置在該代碼段

for (int i = 0; i < pixels.length; i++) 
    pixels[i] = cGrid[i] ? 0xffffff : 0; 

如果你想設置不同的關/ on顏色，你可以做一個簡單的適應

int off = Color.red.getRGB(); 
int on = Color.green.getRGB(); 

for (int i = 0; i < pixels.length; i++) 
    pixels[i] = cGrid[i] ? on : off;