Java語言程序設計的課程設計項目-利用Java實現(xiàn)吞（貪）食蛇游戲項目完整實現(xiàn)實例（第2部分）

1、利用Java實現(xiàn)吞（貪）食蛇游戲項目完整實現(xiàn)實例（第2部分）擴展主窗口的GUI及交換功能1了解ArrayList和LinkedList的用法區(qū)別（1）ArrayList是實現(xiàn)了基于動態(tài)數(shù)組的數(shù)據(jù)結構，LinkedList基于鏈表的數(shù)據(jù)結構。（2）對于隨機訪問get和set，ArrayList覺得優(yōu)于LinkedList，因為LinkedList要移動指針。（3）對于新增和刪除操作add和remove，LinedList比較占優(yōu)勢，因為ArrayList要移動數(shù)據(jù)。2添加項目中所需要的各個圖像文件主要的圖像文件如下3、改變主窗口的默認圖標package com.px1987.greedsnake

2、.mainframe;import java.awt.BorderLayout;import java.awt.Image;import java.awt.Toolkit;import javax.swing.JFrame;import javax.swing.JPanel;import com.px1987.greedsnake.util.GreedSnakeAppVO;public class GreedSnakeMainFrame extends JFrame private static final long serialVersionUID = 1L;private JPanel c

3、ontentPanel=null;public GreedSnakeMainFrame()super();initThisMainFrame();contentPanel=new JPanel();contentPanel.setLayout(new BorderLayout();this.setContentPane(contentPanel);this.setSize(AllGreedSnakeGameAppConstant.greedSnakePanelWidth+5, AllGreedSnakeGameAppConstant.greedSnakePanelHeight+5);this.

4、setLocationRelativeTo(null); /將窗口居中顯示public void initThisMainFrame()this.setTitle(吞（貪）食蛇游戲);Image oneIconImage=Toolkit.getDefaultToolkit().getImage(getClass().getResource(/images/mainframeIconImage.jpg);this.setIconImage(oneIconImage);this.setResizable(false);this.setDefaultCloseOperation(JFrame.EXI

5、T_ON_CLOSE);this.setAlwaysOnTop(true);4、實現(xiàn)貪食蛇中間面板的背景圖的初始化加載package com.px1987.greedsnake.mainframe;import java.awt.BorderLayout;import java.awt.Image;import java.awt.MediaTracker;import java.awt.Toolkit;import javax.swing.JFrame;import javax.swing.JPanel;import com.px1987.greedsnake.util.GreedSnakeA

6、ppVO;public class GreedSnakeMainFrame extends JFrame private static final long serialVersionUID = 1L;private JPanel contentPanel=null;public GreedSnakeMainFrame()super();loadGreenGrassBackgroundImage();initThisMainFrame();contentPanel=new JPanel();contentPanel.setLayout(new BorderLayout();this.setCo

7、ntentPane(contentPanel);e(AllGreedSnakeGameAppConstant.greedSnakePanelWidth+5, AllGreedSnakeGameAppConstant.greedSnakePanelHeight+5);this.setLocationRelativeTo(null); /將窗口居中顯示public void initThisMainFrame()this.setTitle(吞（貪）食蛇游戲);Image oneIconImage=Toolkit.getDefaultToolkit().getImage(getClass().get

8、Resource(/images/mainframeIconImage.jpg);this.setIconImage(oneIconImage);this.setResizable(false);this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);this.setAlwaysOnTop(true);private Image greenGrassBackGroundImage=null;public Image getGreenSnakeGrassBackGroundImage() return greenGrassBackGroundIma

9、ge;private void loadGreenGrassBackgroundImage() /由于背景圖片比較大，需要進行跟蹤greenGrassBackGroundImage=Toolkit.getDefaultToolkit().getImage(this.getClass().getResource(/images/greengrass.jpg);MediaTracker oneMediaTracker=new MediaTracker(this);int trackedImageID=0;oneMediaTracker.addImage(greenGrassBackGroundIm

10、age,trackedImageID);tryoneMediaTracker.waitForID(trackedImageID);/oneMediaTracker.waitForAll();catch(Exception e)e.printStackTrace();5、添加封裝蛇身實體SnakeBodyAllNodeVO（1）添加SnakeBodyAllNodeVO實體類，包名稱為（2）SnakeBodyAllNodeVO實體類的代碼package com.px1987.greedsnake.util;import java.util.Arrays;import java.util.Linke

11、dList;import java.util.Random;import com.px1987.greedsnake.mainframe.GreedSnakeMainFrame;public class SnakeBodyAllNodeVO private boolean snakeMatrix;private LinkedList snakeBodyNodeLinkedList =null;public LinkedList getSnakeBodyNodeLinkedList() return snakeBodyNodeLinkedList;private NodeEntity snake

12、FoodTargetNode;public NodeEntity getSnakeFoodTargetNode() return snakeFoodTargetNode;private int maxGridColNumber, maxGridRowNumber;private GreedSnakeMainFrame oneGreedSnakeMainFrame;public SnakeBodyAllNodeVO() public SnakeBodyAllNodeVO(GreedSnakeMainFrame oneGreedSnakeMainFrame) this.oneGreedSnakeM

13、ainFrame = oneGreedSnakeMainFrame;initSnakeBodyAllNode();private void initSnakeBodyAllNode()maxGridColNumber=AllGreedSnakeGameAppConstant.greedSnakePanelWidth/AllGreedSnakeGameAppConstant.someOneNodeWidth;maxGridRowNumber=AllGreedSnakeGameAppConstant.greedSnakePanelHeight/AllGreedSnakeGameAppConstan

14、t.someOneNodeHeight;/* * 保存最大格子數(shù) */GreedSnakeAppVO.getGreedSnakeAppVO().setMaxGridColNumber(maxGridColNumber);GreedSnakeAppVO.getGreedSnakeAppVO().setMaxGridRowNumber(maxGridRowNumber);/* * 實例化LinkedList集合 */snakeBodyNodeLinkedList = new LinkedList();/* * 初始化二維數(shù)組snakeMatrix，該數(shù)組的長、寬為橫、縱格子數(shù) */snakeMat

15、rix = new booleanmaxGridColNumber;for(int i=0; i 20)?10:maxGridColNumber/2;for(int i = 0; i snakeBodyNodeNumber; +i)int snakeBodyNodeColNo = maxGridColNumber/2+i;int snakeBodyNodeRowNo = maxGridRowNumber/2;snakeBodyNodeLinkedList.addLast(new NodeEntity(snakeBodyNodeColNo, snakeBodyNodeRowNo);snakeMa

16、trixsnakeBodyNodeColNosnakeBodyNodeRowNo = true;/格子值為true代表蛇身節(jié)點/* * 隨機創(chuàng)建食物節(jié)點，并在數(shù)組中標識出該節(jié)點 */snakeFoodTargetNode = createSnakeFoodNode();snakeMatrixsnakeFoodTargetNode.getNodeColNo()snakeFoodTargetNode.getNodeRowNo() = true;public boolean driveSnakeStepMovingOn()/* * 顯示出當前的步數(shù) */StringBuffer stepCounte

17、rTextBuffer=new StringBuffer(); /最好不要使用String類stepCounterTextBuffer.append(步數(shù)：);stepCounterTextBuffer.append(GreedSnakeAppVO.getGreedSnakeAppVO().getSnakeMovingStepCounter();oneGreedSnakeMainFrame.getOneGreedSnakeMainToolBar().getSnakeMovingStepCounterLabel().setText(stepCounterTextBuffer.toString()

18、;/* * 獲得蛇身的開始節(jié)點（蛇頭）節(jié)點的位置（縱、橫格子號），并按照運動的方向改變其格子位置號 */NodeEntity snakeBodyFirstNode = (NodeEntity)snakeBodyNodeLinkedList.getFirst();();int currentSnakeHeadNodeRowNo = snakeBodyFirstNode.getNodeRowNo();switch(GreedSnakeAppVO.getGreedSnakeAppVO().getSnakeCurrentMovingDirection()case AllGreedSnakeGameAp

19、pConstant.MovingUPDirection:currentSnakeHeadNodeRowNo-;break;case AllGreedSnakeGameAppConstant.MovingDOWNDirection:currentSnakeHeadNodeRowNo+;break;case AllGreedSnakeGameAppConstant.MovingLEFTDirection:currentSnakeHeadNodeColNo-;break;ion:currentSnakeHeadNodeColNo+;break;/* * 識別蛇身是否與屏幕的四周出現(xiàn)碰壁，則為失?。ǚ?/p>

20、回false） */boolean snakeMovingIsNotOutMaxColNo=(0 = currentSnakeHeadNodeColNo)&(currentSnakeHeadNodeColNo GreedSnakeAppVO.getGreedSnakeAppVO().getMaxGridColNumber(); boolean snakeMovingIsNotOutMaxRowNo=(0 = currentSnakeHeadNodeRowNo)&(currentSnakeHeadNodeRowNo 0)? gameScoreResultValue:10);GreedSnakeA

21、ppVO.getGreedSnakeAppVO().setSnakeMovingStepCounter(0);/重新記數(shù)snakeFoodTargetNode = createSnakeFoodNode();snakeMatrixsnakeFoodTargetNode.getNodeColNo()snakeFoodTargetNode.getNodeRowNo() = true;return true;else /蛇身相連（碰到自己的身子），失??！return false; else /蛇身前進一格/* * 只要知道蛇頭的位置就可以了， 后面一節(jié)點在下一時刻的移動位置永遠都是前面一節(jié)點在沒有移

22、動前的位置。 */snakeBodyNodeLinkedList.addFirst(new NodeEntity(currentSnakeHeadNodeColNo,currentSnakeHeadNodeRowNo);snakeMatrixcurrentSnakeHeadNodeColNocurrentSnakeHeadNodeRowNo = true;snakeBodyFirstNode = (NodeEntity)snakeBodyNodeLinkedList.removeLast(); /除掉最后的節(jié)點，并返回新的最后節(jié)點snakeMatrixsnakeBodyFirstNode.ge

23、tNodeColNo()snakeBodyFirstNode.getNodeRowNo() = false;/初始化新的最后節(jié)點數(shù)值為falseGreedSnakeAppVO.getGreedSnakeAppVO().setSnakeMovingStepCounter(GreedSnakeAppVO.getGreedSnakeAppVO().getSnakeMovingStepCounter()+1);return true;private NodeEntity createSnakeFoodNode() /* * 用隨機函數(shù)產生食物出現(xiàn)位置的坐標（值不是true的格子節(jié)點），因為蛇身節(jié)點的值

24、為true， * 從而可以避免食物出現(xiàn)在蛇身中 */int foodNodeColNo;int foodNodeRowNo;doRandom snakePositionRandom = new Random();foodNodeColNo = snakePositionRandom.nextInt(GreedSnakeAppVO.getGreedSnakeAppVO().getMaxGridColNumber();foodNodeRowNo = snakePositionRandom.nextInt(GreedSnakeAppVO.getGreedSnakeAppVO().getMaxGrid

25、RowNumber();while(snakeMatrixfoodNodeColNofoodNodeRowNo);return new NodeEntity(foodNodeColNo,foodNodeRowNo);6添加SnakeMoveThread線程類（1）添加SnakeMoveThread線程類，實現(xiàn)接口，包名稱為（2）編程該SnakeMoveThread線程類package com.px1987.greedsnake.thread;import javax.swing.JOptionPane;import com.px1987.greedsnake.mainframe.GreedSn

26、akeMainFrame;import com.px1987.greedsnake.util.GreedSnakeAppVO;import com.px1987.greedsnake.util.SnakeBodyAllNodeVO;public class SnakeMoveThread implements Runnableprivate GreedSnakeMainFrame oneGreedSnakeMainFrame;private SnakeBodyAllNodeVO oneSnakeBodyAllNodeVO=null;public SnakeBodyAllNodeVO getOneSnakeBodyAllNodeVO() return oneSnakeBodyAllNodeVO;public SnakeMoveThread()public SnakeMoveThread(GreedSnakeMainFrame oneGreedSnakeMainFrame)this.oneGreedSnakeMainFrame = oneGreedSnakeMainFrame;oneSnakeBodyAllNodeVO=new SnakeBodyAllNodeVO(this.one