五子棋
程序代码：import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.image.BufferedImage;
import import java.util.ArrayList;
import java.util.List;
import javax.imageio.ImageIO;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class ChessGame extends JPanel {
private static final long serialVersionUID = 1L;
// size, area, rows, cols
static final int CELL_SIZE = 32;
static final int DEFAULT_WIDTH = CELL_SIZE * 19;
static final int DEFAULT_HEIGHT = CELL_SIZE * 19;
static final int rows = 19;
static final int cols = 19;
static BufferedImage blackImg;
static BufferedImage whiteImg;
static List<Cell> cells = new ArrayList<Cell>();
static JFrame frame=new JFrame();
static ChessGame game = new ChessGame();
static int state;
// state value
static final int START=0,RUNNING=1,OVER=2;
static class Cell{
int x;
int y;
boolean mark;
public Cell(int x, int y) {
this.x = x;
this.y = y;
}
@Override
public boolean equals(Object obj) {
if(obj instanceof Cell){
return this.x==((Cell)obj).x&&
this.y==((Cell)obj).y;
}
return false;
}
}
void init() throws IOException{
blackImg = ImageIO.read(ChessGame.class.getResource("black.gif"));
whiteImg = ImageIO.read(ChessGame.class.getResource("white.gif"));
frame.setSize(700,700);
frame.setAlwaysOnTop(true);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(game);
frame.setVisible(true);
MouseAdapter mouseAdapter = new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
if(state==START){
state=RUNNING;
}else if(state==OVER){
state=START;
cells.clear();
} else if(state==RUNNING) {
int s = CELL_SIZE;
int x=e.getX(),y=e.getY();
int sp_x=x%s,sp_y=y%s;
int x1=x-sp_x,y1=y-sp_y;
x1+=+sp_x>s/2?s:0;
y1+=sp_y>s/2?s:0;
Cell newCell = new Cell(x1, y1);
if(!cells.contains(newCell)){
newCell.mark=cells.size()%2==0;
cells.add(newCell);
for(int i=1; i<=4; i++) check(newCell, i);
}
}
game.repaint();
}
};
game.addMouseListener(mouseAdapter);
game.addMouseMotionListener(mouseAdapter);
}
public static void main(String []args) throws IOException {
new ChessGame().init();
}
void paintArea(Graphics g){
g.setColor(Color.WHITE);
int s = CELL_SIZE, t = DEFAULT_WIDTH - CELL_SIZE;
g.fillRect(s, s, t, t);
g.setColor(Color.BLACK);
for (int i = 0; i < rows; i++) {
g.drawLine(s*(1+i), s, s*(1+i), s*rows);
g.drawLine(s, s*(1+i), s*rows, s*(i+1));
}
for (int i = 3; i <= 15;i += 6) {
for (int j = 3; j <= 15; j += 6) {
g.fillArc((i+1)*CELL_SIZE-6, (j+1)*CELL_SIZE-6, 12, 12, 0, 360);
}
}
}
void paintCell(Graphics g){
for(Cell c: cells){
g.drawImage(c.mark?whiteImg:blackImg, c.x-CELL_SIZE/2, c.y-CELL_SIZE/2, null);
}
}
void paintState(Graphics g){
g.setColor(Color.RED);
g.setFont(new Font("Arial", Font.BOLD, 32));
switch(state){
case OVER:
String res=cells.get(cells.size()-1).mark?"white":"black";
g.drawString("game over @1 win!".replace("@1", res), DEFAULT_WIDTH/3, DEFAULT_HEIGHT/2);
break;
case START:
g.drawString("start", DEFAULT_WIDTH/3, DEFAULT_HEIGHT/2);
}
}
// paint task
public void paint(Graphics g) {
paintArea(g);
paintCell(g);
paintState(g);
}
boolean subCheck(Cell c, Cell cell, int type) {
if(type == 1) {
return c.x==cell.x;
} else if(type == 2) {
return c.y==cell.y;
} else if(type == 3) {
return Math.abs(c.y-cell.y-c.x+cell.x) == 0;
} else if(type == 4) {
return Math.abs(c.y-cell.y+c.x-cell.x) == 0;
}
return false;
}
// check game is over
void check(Cell cell, int type) {
if(cells.stream().filter(c->subCheck(c, cell, type)&&c.mark==cell.mark&&
Math.abs(c.y-cell.y)<=CELL_SIZE*4&&Math.abs(c.y-cell.y)>0).count()>=4) {
state = OVER;
return;
}
}
}
