Java Swing实现俄罗斯方块
2007-09-08 11:42
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import javax.swing.*;
import javax.swing.border.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
public class Matrix extends JPanel...{
private JLabel matrix[][];
public static final int ROW = 20;
public static final int COLUMN = 15;
private MatrixModel model;
public Matrix()...{
this.setLayout(new GridLayout(ROW, COLUMN));
init();
Dimension size = new Dimension(COLUMN*20, ROW*20);
this.setPreferredSize(size);
this.setMinimumSize(size);
this.setMaximumSize(size);
this.addKeyListener(new MyKeyListener());
this.setFocusable(true);
model = new MatrixModel(this);
}
public void start()...{
model.start();
}
private void init()...{
matrix = new JLabel[ROW][COLUMN];
JLabel label = null;
for(int i=0; i<ROW; i++)...{
for(int j=0; j<COLUMN; j++)...{
label = new JLabel(" ");
label.setBorder(new LineBorder(Color.GRAY));
label.setOpaque(true);
matrix[i][j] = label;
add(matrix[i][j]);
}
}
}
public void displayState(int[][] state)...{
for(int i=0; i<state.length; i++)...{
for(int j=0; j<state[i].length; j++)...{
if(state[i][j] == 1)...{
matrix[i][j].setBackground(Color.red);
}else...{
matrix[i][j].setBackground(Color.black);
}
}
}
}
class MyKeyListener extends KeyAdapter...{
public void keyPressed(KeyEvent e) ...{
if(e.getKeyCode() == KeyEvent.VK_LEFT)...{
model.moveLeft();
}
else if(e.getKeyCode() == KeyEvent.VK_RIGHT)...{
model.moveRight();
}else if(e.getKeyCode() == KeyEvent.VK_DOWN)...{
model.down();
}else if(e.getKeyCode() == KeyEvent.VK_UP)...{
model.rotateSharp();
}
}
}
public static void main(String arg[])...{
JFrame frame = new JFrame();
Matrix matrix = new Matrix();
matrix.start();
frame.add(new JScrollPane(matrix));
frame.pack();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
/**//*
int i[][] = {{10,20}, {11, 21}, {21, 31}};
int j[][] = new int[3][2];
System.arraycopy(i, 0, j, 0, i.length);
for(int x=0; x<j.length; x++){
for(int y=0; y<j[x].length; y++){
System.out.print(j[x][y]+" ");
}
System.out.println();
}*/
}
}
import java.util.*;
public class MatrixModel...{
private int model[][];
private int sharp[][];
private int state[][];
private int currentX, currentY;
private Matrix myParent;
private RunThread runThread;
private int currentIndex;
public MatrixModel(Matrix parent)...{
myParent = parent;
model = new int[Matrix.ROW][Matrix.COLUMN];
state = new int[Matrix.ROW][Matrix.COLUMN];
newSharp();
}
public void start()...{
runThread = new RunThread();
runThread.start();
}
private int[][] randomSharp()...{
currentIndex = (int)(MatrixSharp.NUMBER*Math.random());
return MatrixSharp.sharp[currentIndex];
}
private synchronized boolean isMoveAvaliable(int currentX, int currentY)...{
if(currentX>Matrix.COLUMN-1)...{
return false;
}
if(currentX<0)...{
for(int i=0; i<4; i++)...{
for(int j=0; j<Math.abs(currentX); j++)
if(sharp[i][j] != 0)...{
return false;
}
}
}
if(currentY<0 || currentY>Matrix.ROW-1)...{
return false;
}
for(int x=0; x<4; x++)...{
for(int y=0; y<4; y++)...{
if(currentX+x>-1 && currentX+x<Matrix.COLUMN && currentY+y<Matrix.ROW )...{
if((sharp[y][x] & model[currentY+y][currentX+x]) != 0)...{
return false;
}
}else...{
if(currentX+x >= Matrix.COLUMN)...{
if(sharp[y][x] != 0)...{
return false;
}
}
else if(currentY+y >= Matrix.ROW)...{
if(sharp[y][x] != 0)...{
return false;
}
}
}
}
}
return true;
}
private synchronized void moveTo(int x, int y)...{
for(int i=0; i<Matrix.ROW; i++)...{
for(int j=0; j<Matrix.COLUMN; j++)...{
state[i][j] = model[i][j];
}
}
for(int c=0; c<4; c++)...{
for(int r=0; r<4; r++)...{
if(currentX+c>-1 && currentX+c<Matrix.COLUMN && currentY+r<Matrix.ROW)...{
state[currentY+r][currentX+c] |= sharp[r][c];
}
}
}
myParent.displayState(state);
}
public void over()...{
System.out.println("game over");
runThread.end();
}
public synchronized void moveLeft()...{
if(isMoveAvaliable(currentX-1, currentY))...{
currentX -= 1;
moveTo(currentX, currentY);
}
}
public synchronized void moveRight()...{
if(isMoveAvaliable(currentX+1, currentY))...{
currentX += 1;
moveTo(currentX, currentY);
}
}
private boolean isOver()...{
if(currentY==0)...{
return false;
}
return false;
}
private synchronized void resetState()...{
state = new int[Matrix.ROW][Matrix.COLUMN];
moveTo(currentX, currentY);
}
public synchronized void down()...{
if(isMoveAvaliable(currentX, currentY+1))...{
currentY += 1;
moveTo(currentX, currentY);
}else...{
if(isOver())...{
over();
return;
}
model = state;
check();
resetState();
newSharp();
}
}
public synchronized void check()...{
Vector clearVector = new Vector();
for(int i=Matrix.ROW-1; i>0; i--)...{
int j = 0;
for(; j<Matrix.COLUMN; j++)...{
if(model[i][j] == 0)...{
break;
}
}
if(j == Matrix.COLUMN)...{
clearVector.add(new Integer(i));
}
}
clearRows(clearVector);
}
private synchronized void clearRows(Vector clearVector)...{
for(int i = clearVector.size(); i>0; i--)...{
int row = ((Integer)clearVector.get(i-1)).intValue();
for(int j=0; j<Matrix.COLUMN; j++)...{
for(int k=row; k>=0; k--)...{
if(k == 0)...{
model[k][j]=0;
}else...{
model[k][j] = model[k-1][j];
}
}
}
}
}
public synchronized void rotateSharp()...{
int tmpIndex = currentIndex++;
if(currentIndex % 4 == 0)...{
currentIndex -= 4;
}
int[][] tmpSharp = MatrixSharp.sharp[currentIndex];
if(isRotateAble(tmpSharp))...{
sharp = MatrixSharp.sharp[currentIndex];
moveTo(currentX, currentY);
}else...{
currentIndex = tmpIndex;
}
}
private synchronized boolean isRotateAble(int sharp[][])...{
for(int x=0; x<4; x++)...{
for(int y=0; y<4; y++)...{
if((currentX+x<0 || currentX+x>=Matrix.COLUMN) ||
(currentY+y<0 || currentY+y>=Matrix.ROW))...{
if(sharp[y][x] != 0)...{
return false;
}
}
}
}
return isMoveAvaliable(currentX, currentY);
}
private synchronized void newSharp()...{
currentX = Matrix.COLUMN/2;
currentY = 0;
sharp = randomSharp();
}
class RunThread extends Thread...{
boolean isRun = true;
public void end()...{
isRun = false;
}
public void run()...{
while(isRun)...{
down();
try...{
sleep(500);
}catch(Exception e)...{
e.printStackTrace();
}
}
}
}
}
interface MatrixSharp...{
static int sharp[][][] = new int[][][]...{
...{...{0,0,1,0},...{0,0,1,0},...{0,1,1,0},...{0,0,0,0}},
...{...{0,0,0,0},...{0,1,0,0},...{0,1,1,1},...{0,0,0,0}},
...{...{0,1,1,0},...{0,1,0,0},...{0,1,0,0},...{0,0,0,0}},
...{...{0,0,0,0},...{1,1,1,0},...{0,0,1,0},...{0,0,0,0}},
...{...{0,0,0,0},...{0,1,1,0},...{0,1,1,0},...{0,0,0,0}},
...{...{0,0,0,0},...{0,1,1,0},...{0,1,1,0},...{0,0,0,0}},
...{...{0,0,0,0},...{0,1,1,0},...{0,1,1,0},...{0,0,0,0}},
...{...{0,0,0,0},...{0,1,1,0},...{0,1,1,0},...{0,0,0,0}},
...{...{1,1,1,1},...{0,0,0,0},...{0,0,0,0},...{0,0,0,0}},
...{...{0,1,0,0},...{0,1,0,0},...{0,1,0,0},...{0,1,0,0}},
...{...{1,1,1,1},...{0,0,0,0},...{0,0,0,0},...{0,0,0,0}},
...{...{0,1,0,0},...{0,1,0,0},...{0,1,0,0},...{0,1,0,0}},
...{...{0,0,0,0},...{0,1,1,0},...{0,0,1,1},...{0,0,0,0}},
...{...{0,0,1,0},...{0,1,1,0},...{0,1,0,0},...{0,0,0,0}},
...{...{0,0,0,0},...{0,1,1,0},...{0,0,1,1},...{0,0,0,0}},
...{...{0,0,1,0},...{0,1,1,0},...{0,1,0,0},...{0,0,0,0}},
...{...{0,0,1,0},...{0,0,0,0},...{0,0,0,0},...{0,0,0,0}},
...{...{0,0,1,0},...{0,0,0,0},...{0,0,0,0},...{0,0,0,0}},
...{...{0,0,1,0},...{0,0,0,0},...{0,0,0,0},...{0,0,0,0}},
...{...{0,0,1,0},...{0,0,0,0},...{0,0,0,0},...{0,0,0,0}},
...{...{0,1,0,0},...{0,1,0,0},...{0,1,1,0},...{0,0,0,0}},
...{...{0,0,0,0},...{0,0,1,0},...{1,1,1,0},...{0,0,0,0}},
...{...{0,1,1,0},...{0,0,1,0},...{0,0,1,0},...{0,0,0,0}},
...{...{0,0,0,0},...{0,1,1,1},...{0,1,0,0},...{0,0,0,0}}
};
static int NUMBER = sharp.length;
}
一简单的俄罗斯方块游戏，用到了线程及gridLayout,，用JLabel的背景来控制效果，运行效率虽然低，但程序编写很方便。Matrix.java用于控制显示，MatrixModel.java用于处理变换的数据
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