java贪吃蛇源代码_java贪吃蛇源代码详解

JAVA实现代码ALL RIGHTS RESERVED 3 import .*;import .*;importstaTIc ; import .*;import ; import .*;Publicclass Snakeextends JPanel implements Runnable {enum Dir {up(0， -1)， right(1， 0)， down(0， 1)， left(-1， 0);Dir(intx， inty) { this.x = x; this.y = y;}finalintx， y;}staTIcfinal Random rand = new Random();staticfinalintWALL = -1;staticfinalintMAX_ENERGY = 1500;volatilebooleangameOver = true;Thread gameThread; intscore， hiScore; intnRows = 44;intnCols = 64;Dir dir; intenergy;int［］［］ grid;List《Point>snake， treats;Font smallFont;

public Snake() {setPreferredSize(new Dimension(640， 440));setBackground();setFont(new Font(“SansSerif”， ， 48));setFocusable(true);smallFont = getFont().deriveFont(， 18);initGrid();addMouseListener(new MouseAdapter() {@Overridepublicvoid mousePressed(MouseEvent e) {if (gameOver) {startNewGame();repaint();}}});addKeyListener(new KeyAdapter() {@Overridepublicvoid keyPressed(KeyEvent e) {switch (Code()) {case _UP： if (dir ！= ) dir = ; break；case _LEFT： if (dir ！= ) dir = ; break;case _RIGHT： if (dir ！= ) dir = ; break;case _DOWN： if (dir ！= ) dir = ; break;}repaint();}});}void startNewGame() { gameOver = false;stop();initGrid();treats = new LinkedList<>();dir = ;

energy = MAX_ENERGY;if (score>hiScore) hiScore = score; score = 0;snake = new ArrayList<>(); for (intx = 0; x< 7; x++) (new Point(nCols / 2 + x， nRows / 2));do addTreat(); while(y());(gameThread = new Thread(this)).start();}void stop() {if (gameThread ！= null) {Thread tmp = gameThread; gameThread = null; upt();}}void initGrid() { grid = newint［nRows］［nCols］; for (intr = 0;r《nRows; r++) { for (intc = 0; cif (c == 0 || c == nCols - 1 || r == 0 || r == nRows - 1) grid［r］［c］ = WALL;}}}@Overridepublicvoid run() {while (tThread() == gameThread) { try { ((75 - score， 25));} catch (InterruptedException e) {return;} if (energyUsed() || hitsWall() || hitsSnake()) {gameOver();} else {if (eatsTreat()) { score++; energy = MAX_ENERGY;growSnake();}moveSnake();addTreat();}repaint();}} boolean energyUsed() { energy -= 10;

returnenergy<= 0;}boolean hitsWall() {Point head = (0);intnextCol = head.x + dir.x;intnextRow = head.y + dir.y;returngrid［nextRow］［nextCol］ == WALL;}boolean hitsSnake() {Point head = (0);intnextCol = head.x + dir.x;intnextRow = head.y + dir.y;for (Point p ： snake) if (p.x == nextCol&&p.y == nextRow) returntrue; returnfalse;}boolean eatsTreat() {Point head = (0);intnextCol = head.x + dir.x; intnextRow = head.y + dir.y; for (Point p ： treats) if (p.x == nextCol&&p.y == nextRow) {(p);}returnfalse;} void gameOver() { gameOver = true;stop();} void moveSnake() {for (inti = () - 1; i> 0; i--) {Point p1 = (i - 1);Point p2 = (i); p2.x = p1.x;p2.x = p1.x; p2.y = p1.y;}Point head = (0); head.x += dir.x; head.y += dir.y;}void growSnake() {Point tail = (() - 1); intx = tail.x + dir.x; inty = tail.y + dir.y; (new Point(x， y));} void addTreat() { if (() 《 3) {if (t(10) == 0) { // 1 in 10 if (t(4) ！= 0) { // 3 in 4 intx， y; while (true) {

x = t(nCols);y = t(nRows); if (grid［y］［x］ ！= 0) continue;Point p = new Point(x， y);if (ns(p) || ns(p)) continue;(p); break;}}elseif (() > 1) (0);}}}void drawGrid(Graphics2D g) { or(ray);for (intr = 0; r}}}void drawSnake(Graphics2D g) { or(); for (Point p ： snake) ct(p.x * 10， p.y * 10， 10， 10);or(energy< 500 ？ ： );Point head = (0);ct(head.x * 10， head.y * 10， 10， 10);}void drawTreats(Graphics2D g) {or(); for (Point p ： treats) ct(p.x * 10， p.y * 10， 10， 10);}void drawStartScreen(Graphics2D g) { or();t(getFont());ring(“Snake”， 240， 190);or(); t(smallFont);ring(“(click to start)”， 250， 240);}void drawScore(Graphics2D g) { inth = getHeight();t(smallFont);or(getForeground());String s = format(“hiscore %d score %d”， hiScore， score);ring(s， 30， h - 30);

ring(format(“energy %d”， energy)， getWidth() - 150， h - 30);}@Overridepublicvoid paintComponent(Graphics gg) { omponent(gg);Graphics2D g = (Graphics2D) gg;deringHint(_ANTIALIASING， _ANTIALIAS_ON);drawGrid(g);if (gameOver) {drawStartScreen(g);} else {drawSnake(g);drawTreats(g);drawScore(g);}}publicstaticvoid main(String［］ args) {Later(() -> {JFrame f = new JFrame();aultCloseOperation(_ON_CLOSE);le(“Snake”);izable(false);(new Snake()， );();ationRelativeTo(null);ible(true);});}}