java新手简单的吞食蛇游戏一边写一边查书写了半天才弄出来
没法把jar文件附在文章后面想试试的人自己编译一下吧
有意见尽管提高手多多指导不过骂人就算了
///////////////////////////
// 文件
//////////////////////////
import javaawt*;
import javaawtevent*;
import javaxswing*;
import javautil*;
public class GreedSnake implements KeyListener{
JFrame mainFrame;
Canvas paintCanvas;
JLabel labelScore;
SnakeModel snakeModel = null;
public static final int canvasWidth = ;
public static final int canvasHeight = ;
public static final int nodeWidth = ;
public static final int nodeHeight = ;
public GreedSnake() {
mainFrame = new JFrame(GreedSnake);
Container cp = mainFramegetContentPane();
labelScore = new JLabel(Score:);
cpadd(labelScore BorderLayoutNORTH);
paintCanvas = new Canvas();
paintCanvassetSize(canvasWidth+canvasHeight+);
paintCanvasaddKeyListener(this);
cpadd(paintCanvas BorderLayoutCENTER);
JPanel panelButtom = new JPanel();
panelButtomsetLayout(new BorderLayout());
JLabel labelHelp;
labelHelp = new JLabel(PageUp PageDown for speed; JLabelCENTER);
panelButtomadd(labelHelp BorderLayoutNORTH);
labelHelp = new JLabel(ENTER or R or S for start; JLabelCENTER);
panelButtomadd(labelHelp BorderLayoutCENTER);
labelHelp = new JLabel(SPACE or P for pauseJLabelCENTER);
panelButtomadd(labelHelp BorderLayoutSOUTH);
cpadd(panelButtomBorderLayoutSOUTH);
mainFrameaddKeyListener(this);
mainFramepack();
mainFramesetResizable(false);
mainFramesetDefaultCloseOperation(JFrameEXIT_ON_CLOSE);
mainFramesetVisible(true);
begin();
}
public void keyPressed(KeyEvent e){
int keyCode = egetKeyCode();
if (snakeModelrunning)
switch(keyCode){
case KeyEventVK_UP:
snakeModelchangeDirection(SnakeModelUP);
break;
case KeyEventVK_DOWN:
snakeModelchangeDirection(SnakeModelDOWN);
break;
case KeyEventVK_LEFT:
snakeModelchangeDirection(SnakeModelLEFT);
break;
case KeyEventVK_RIGHT:
snakeModelchangeDirection(SnakeModelRIGHT);
break;
case KeyEventVK_ADD:
case KeyEventVK_PAGE_UP:
snakeModelspeedUp();
break;
case KeyEventVK_SUBTRACT:
case KeyEventVK_PAGE_DOWN:
snakeModelspeedDown();
break;
case KeyEventVK_SPACE:
case KeyEventVK_P:
snakeModelchangePauseState();
break;
default:
}
if (keyCode == KeyEventVK_R ||
keyCode == KeyEventVK_S ||
keyCode == KeyEventVK_ENTER){
snakeModelrunning = false;
begin();
}
}
public void keyReleased(KeyEvent e){
}
public void keyTyped(KeyEvent e){
}
void repaint(){
Graphics g = paintCanvasgetGraphics();
//draw background
gsetColor(ColorWHITE);
gfillRect(canvasWidthcanvasHeight);
// draw the snake
gsetColor(ColorBLACK);
LinkedList na = snakeModelnodeArray;
Iterator it = erator();
while(ithasNext()){
Node n = (Node)itnext();
drawNode(gn);
}
// draw the food
gsetColor(ColorRED);
Node n = snakeModelfood;
drawNode(gn);
updateScore();
}
private void drawNode(Graphics g Node n){
gfillRect(nx*nodeWidth
ny*nodeHeight
nodeWidth
nodeHeight);
}
public void updateScore(){
String s = Score: + snakeModelscore;
labelScoresetText(s);
}
void begin(){
if (snakeModel == null || !snakeModelrunning){
snakeModel = new SnakeModel(this
canvasWidth/nodeWidth
canvasHeight/nodeHeight);
(new Thread(snakeModel))start();
}
}
public static void main(String[] args){
GreedSnake gs = new GreedSnake();
}
}
///////////////////////////////////////////////////
// 文件
///////////////////////////////////////////////////
import javautil*;
import javaxswing*;
class SnakeModel implements Runnable{
GreedSnake gs;
boolean[][] matrix;
LinkedList nodeArray = new LinkedList();
Node food;
int maxX;
int maxY;
int direction = ;
boolean running = false;
int timeInterval = ;
double speedChangeRate = ;
boolean paused = false;
int score = ;
int countMove = ;
// UP and DOWN should be even
// RIGHT and LEFT should be odd
public static final int UP = ;
public static final int DOWN = ;
public static final int LEFT = ;
public static final int RIGHT = ;
public SnakeModel(GreedSnake gs int maxX int maxY){
thisgs = gs;
thismaxX = maxX;
thismaxY = maxY;
// initial matirx
matrix = new boolean[maxX][];
for(int i=; i<maxX; ++i){
matrix[i] = new boolean[maxY];
Arraysfill(matrix[i]false);
}
// initial the snake
int initArrayLength = maxX > ? : maxX/;
for(int i = ; i < initArrayLength; ++i){
int x = maxX/+i;
int y = maxY/;
nodeArrayaddLast(new Node(x y));
matrix[x][y] = true;
}
food = createFood();
matrix[foodx][foody] = true;
}
public void changeDirection(int newDirection){
if (direction % != newDirection % ){
direction = newDirection;
}
}
public boolean moveOn(){
Node n = (Node)nodeArraygetFirst();
int x = nx;
int y = ny;
switch(direction){
case UP:
y;
break;
case DOWN:
y++;
break;
case LEFT:
x;
break;
case RIGHT:
x++;
break;
}
if (( <= x && x < maxX) && ( <= y && y < maxY)){
if (matrix[x][y]){
if(x == foodx && y == foody){
nodeArrayaddFirst(food);
int scoreGet = ( * countMove) / timeInterval;
score += scoreGet > ? scoreGet : ;
countMove = ;
food = createFood();
matrix[foodx][foody] = true;
return true;
}
else
return false;
}
else{
nodeArrayaddFirst(new Node(xy));
matrix[x][y] = true;
n = (Node)nodeArrayremoveLast();
matrix[nx][ny] = false;
countMove++;
return true;
}
}
return false;
}
public void run(){
running = true;
while (running){
try{
Threadsleep(timeInterval);
}
catch(Exception e){
break;
}
if(!paused){
if (moveOn()){
gsrepaint();
}
else{
JOptionPaneshowMessageDialog(
null
you failed
Game Over
JOptionPaneINFORMATION_MESSAGE);
break;
}
}
}
running = false;
}
private Node createFood(){
int x = ;
int y = ;
do{
Random r = new Random();
x = rnextInt(maxX);
y = rnextInt(maxY);
}while(matrix[x][y]);
return new Node(xy);
}
public void speedUp()
