Android扫雷游戏源代码及预览图.doc

Android扫雷游戏源代码及预览图 发布时间:2010-11-11 作者:Android开发网原创 MineSweeper是一个不错的Android开源扫雷游戏，对于初学Android开发网的网友可能有很大的帮助，对于Java游戏开发也有一定的参考意义。该游戏主要有以下技术值得学习: 1. 个性化字体，计分器使用的是LED字体，可以帮助我们如何导入外部字体在Android平台中显示。 2. 带图片的Toast，下面的You won in 36 seconds这个Toast使用了自定义的布局，可以显示图片和文字。 3. 自定义Button控件，可以看到标记是否为雷，显示附近地雷数量的按钮控件，初学者可以很容易的学习到Android开发中常用的自定义控件技术。 4. 因为游戏实时性不高，这里没有用到SurfaceView，下次Android开发网给大家提供一个将对高级些的例子。 完整工程源代码下载 /dev/android_mine_src.zip (482KB) 关键代码如下: public class MinesweeperGame extends Activityprivate TextView txtMineCount;private TextView txtTimer;private ImageButton btnSmile;private TableLayout mineField; / table layout to add mines toprivate Block blocks; / blocks for mine fieldprivate int blockDimension = 24; / width of each blockprivate int blockPadding = 2; / padding between blocksprivate int numberOfRowsInMineField = 9;private int numberOfColumnsInMineField = 9;private int totalNumberOfMines = 10;/ timer to keep track of time elapsedprivate Handler timer = new Handler();private int secondsPassed = 0;private boolean isTimerStarted; / check if timer already started or notprivate boolean areMinesSet; / check if mines are planted in blocksprivate boolean isGameOver;private int minesToFind; / number of mines yet to be discoveredOverridepublic void onCreate(Bundle savedInstanceState)super.onCreate(savedInstanceState);setContentView(R.layout.main);txtMineCount = (TextView) findViewById(R.id.MineCount);txtTimer = (TextView) findViewById(R.id.Timer);/ set font style for timer and mine count to LCD styleTypeface lcdFont = Typeface.createFromAsset(getAssets(),fonts/lcd2mono.ttf);txtMineCount.setTypeface(lcdFont);txtTimer.setTypeface(lcdFont);btnSmile = (ImageButton) findViewById(R.id.Smiley);btnSmile.setOnClickListener(new OnClickListener()Overridepublic void onClick(View view)endExistingGame();startNewGame(););mineField = (TableLayout)findViewById(R.id.MineField);showDialog(Click smiley to start New Game, 2000, true, false);private void startNewGame()/ plant mines and do rest of the calculationscreateMineField();/ display all blocks in UIshowMineField();minesToFind = totalNumberOfMines;isGameOver = false;secondsPassed = 0;private void showMineField()/ remember we will not show 0th and last Row and Columns/ they are used for calculation purposes onlyfor (int row = 1; row numberOfRowsInMineField + 1; row+)TableRow tableRow = new TableRow(this); tableRow.setLayoutParams(new LayoutParams(blockDimension + 2 * blockPadding) * numberOfColumnsInMineField, blockDimension + 2 * blockPadding);for (int column = 1; column numberOfColumnsInMineField + 1; column+)blocksrowcolumn.setLayoutParams(new LayoutParams( blockDimension + 2 * blockPadding, blockDimension + 2 * blockPadding); blocksrowcolumn.setPadding(blockPadding, blockPadding, blockPadding, blockPadding);tableRow.addView(blocksrowcolumn);mineField.addView(tableRow,new TableLayout.LayoutParams( (blockDimension + 2 * blockPadding) * numberOfColumnsInMineField, blockDimension + 2 * blockPadding); private void endExistingGame()stopTimer(); / stop if timer is runningtxtTimer.setText(000); / revert all texttxtMineCount.setText(000); / revert mines countbtnSmile.setBackgroundResource(R.drawable.smile);/ remove all rows from mineField TableLayoutmineField.removeAllViews();/ set all variables to support end of gameisTimerStarted = false;areMinesSet = false;isGameOver = false;minesToFind = 0;private void createMineField()/ we take one row extra row for each side/ overall two extra rows and two extra columns/ first and last row/column are used for calculations purposes only/ x|xxxxxxxxxxxxxx|x/ -/ x| |x/ x| |x/ -/ x|xxxxxxxxxxxxxx|x/ the row and columns marked as x are just used to keep counts of near by minesblocks = new BlocknumberOfRowsInMineField + 2numberOfColumnsInMineField + 2;for (int row = 0; row numberOfRowsInMineField + 2; row+)for (int column = 0; column 0) & !isGameOver)int nearbyFlaggedBlocks = 0;for (int previousRow = -1; previousRow 2; previousRow+)for (int previousColumn = -1; previousColumn 2; previousColumn+)if (blockscurrentRow + previousRowcurrentColumn + previousColumn.isFlagged()nearbyFlaggedBlocks+;/ if flagged block count is equal to nearby mine count/ then open nearby blocksif (nearbyFlaggedBlocks = blockscurrentRowcurrentColumn.getNumberOfMinesInSorrounding()for (int previousRow = -1; previousRow 2; previousRow+)for (int previousColumn = -1; previousColumn 2; previousColumn+)/ dont open flagged blocksif (!blockscurrentRow + previousRowcurrentColumn + previousColumn.isFlagged()/ open blocks till we get numbered blockrippleUncover(currentRow + previousRow, currentColumn + previousColumn);/ did we clicked a mineif (blockscurrentRow + previousRowcurrentColumn + previousColumn.hasMine()/ oops game overfinishGame(currentRow + previousRow, currentColumn + previousColumn);/ did we win the gameif (checkGameWin()/ mark game as winwinGame();/ as we no longer want to judge this gesture so return/ not returning from here will actually trigger other action/ which can be marking as a flag or question mark or blankreturn true;/ if clicked block is enabled, clickable or flaggedif (blockscurrentRowcurrentColumn.isClickable() & (blockscurrentRowcurrentColumn.isEnabled() | blockscurrentRowcurrentColumn.isFlagged()/ for long clicks set:/ 1. empty blocks to flagged/ 2. flagged to question mark/ 3. question mark to blank/ case 1. set blank block to flaggedif (!blockscurrentRowcurrentColumn.isFlagged() & !blockscurrentRowcurrentColumn.isQuestionMarked()blockscurrentRowcurrentColumn.setBlockAsDisabled(false);blockscurrentRowcurrentColumn.setFlagIcon(true);blockscurrentRowcurrentColumn.setFlagged(true);minesToFind-; /reduce mine countupdateMineCountDisplay();/ case 2. set flagged to question markelse if (!blockscurrentRowcurrentColumn.isQuestionMarked()blockscurrentRowcurrentColumn.setBlockAsDisabled(true);blockscurrentRowcurrentColumn.setQuestionMarkIcon(true);blockscurrentRowcurrentColumn.setFlagged(false);blockscurrentRowcurrentColumn.setQuestionMarked(true);minesToFind+; / increase mine countupdateMineCountDisplay();/ case 3. change to blank squareelseblockscurrentRowcurrentColumn.setBlockAsDisabled(true);blockscurrentRowcurrentColumn.clearAllIcons();blockscurrentRowcurrentColumn.setQuestionMarked(false);/ if it is flagged then increment mine countif (blockscurrentRowcurrentColumn.isFlagged()minesToFind+; / increase mine countupdateMineCountDisplay();/ remove flagged statusblockscurrentRowcurrentColumn.setFlagged(false);updateMineCountDisplay(); / update mine displayreturn true;);private boolean checkGameWin()for (int row = 1; row numberOfRowsInMineField + 1; row+)for (int column = 1; column numberOfColumnsInMineField + 1; column+)if (!blocksrowcolumn.hasMine() & blocksrowcolumn.isCovered()return false;return true;private void updateMineCountDisplay()if (minesToFind 0)txtMineCount.setText(Integer.toString(minesToFind);else if (minesToFind 10)txtMineCount.setText(00 + Integer.toString(minesToFind);else if (minesToFind 100)txtMineCount.setText(0 + Integer.toString(minesToFind);elsetxtMineCount.setText(Integer.toString(minesToFind);private void winGame()stopTimer();isTimerStarted = false;isGameOver = true;minesToFind = 0; /set mine count to 0/set icon to cool dudebtnSmile.setBackgroundResource(R.drawable.cool);updateMineCountDisplay(); / update mine count/ disable all buttons/ set flagged all un-flagged blocksfor (int row = 1; row numberOfRowsInMineField + 1; row+)for (int column = 1; column numberOfColumnsInMineField + 1; column+)blocksrowcolumn.setClickable(false);if (blocksrowcolumn.hasMine()blocksrowcolumn.setBlockAsDisabled(false);blocksrowcolumn.setFlagIcon(true);/ show messageshowDialog(You won in + Integer.toString(secondsPassed) + seconds!, 1000, false, true);private void finishGame(int currentRow, int currentColumn)isGameOver = true; / mark game as overstopTimer(); / stop timerisTimerStarted = false;btnSmile.setBackgroundResource(R.drawable.sad);/ show all mines/ disable all blocksfor (int row = 1; row numberOfRowsInMineField + 1; row+)for (int column = 1; column numberOfColumnsInMineField + 1; column+)/ disable blockblocksrowcolumn.setBlockAsDisabled(false);/ block has mine and is not flaggedif (blocksrowcolumn.hasMine() & !blocksrowcolumn.isFlagged()/ set mine iconblocksrowcolumn.setMineIcon(false);/ block is flagged and doesnt not have mineif (!blocksrowcolumn.hasMine() & blocksrowcolumn.isFlagged()/ set flag iconblocksrowcolumn.setFlagIcon(false);/ block is flaggedif (blocksrowcolumn.isFlagged()/ disable the blockblocksrowcolumn.setClickable(false);/ trigger mineblockscurrentRowcurrentColumn.triggerMine();/ show messageshowDialog(You tried for + Integer.toString(secondsPassed) + seconds!, 1000, false, false);private void setMines(int currentRow, int currentColumn)/ set mines excluding the location where user clickedRandom rand = new Random();int mineRow, mineColumn;for (int row = 0; row totalNumberOfMines; row+)mineRow = rand.nextInt(numberOfColumnsInMineField);mineColumn = rand.nextInt(numberOfRowsInMineField);if (mineRow + 1 != currentColumn) | (mineColumn + 1 != currentRow)if (blocksmineColumn + 1mineRow + 1.hasMine()row-; / mine is already there, dont repeat for same block/ plant mine at this locationblocksmineColumn + 1mineRow + 1.plantMine();/ exclude the user clicked locationelserow-;int nearByMineCount;/ count number of mines in surrounding blocks for (int row = 0; row numberOfRowsInMineField + 2; row+)for (int column = 0; column numberOfColumnsInMineField + 2; column+)/ for each block find nearby mine countnearByMineCount = 0;if (row != 0) & (row != (numberOfRowsInMineField + 1) & (column != 0) & (column != (numberOfColumnsInMineField + 1)/ check in all nearby blocksfor (int previousRow = -1; previousRow 2; previousRow+)for (int previousColumn = -1; previousColumn 2; previousColumn+)if (blocksrow + previousRowcolumn + previousColumn.hasMine()/ a mine was found so increment the counternearByMineCount+;blocksrowcolumn.setNumberOfMinesInSurrounding(nearByMineCount);/ for side rows (0th and last row/column)/ set count as 9 and mark it as openedelseblocksrowcolumn.setNumberOfMinesInSurrounding(9);blocksrowcolumn.OpenBlock();private void rippleUncover(int rowClicked, int columnClicked)/ dont open flagged or mined rowsif (blocksrowClickedcolumnClicked.hasMine() | blocksrowClickedcolumnClicked.isFlagged()return;/ open clicked blockblocksrowClickedcolumnClicked.OpenBlock();/ if clicked block have nearby mines then dont open furtherif (blocksrowClickedcolumnClicked.getNumberOfMinesInSorrounding() != 0 )return;/ open next 3 rows and 3 columns recursivelyfor (int row = 0; row 3; row+)for (int column = 0; column 0) & (columnClicked + column - 1 0)& (rowClicked + row - 1 numberOfRowsInMineField + 1) & (columnClicked + column - 1 numberOfColumnsInMineField + 1)rippleUncover(rowClicked + row - 1, columnClicked + column - 1 ); return;public void startTimer()if (secondsPassed = 0) timer.removeCallbacks(updateTimeElasped);/ tell timer to run call back after 1 secondtimer.postDelayed(updateTimeElasped, 1000);public void stopTimer()/ d