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pushbox(3)
控制worker的移动，推动箱子到目标位置。
Point.java(点，用以计算人当前的位置)
package edu.pushbox.util; public class Point { public int row; public int column; public Point(int row, int column) { this.row = row; this.column = column; } }
Position.java(1,通过传入的二维数组，计算出人的位置，2,通过对二维数组的便利，判断是否完成本关，即把箱子推到目标位置)
package edu.pushbox.util; /* * 找到map中人的位置 * 传递map和worker的代表数字workerKey */ public class Position { public static Point getPosition(int map[][], int workerKey) { int column = 0, row = 0; for (int i = 0; i < map.length; i++) { for (int j = 0; j < map[0].length; j++) { if (map[i][j] == workerKey) { column = j; row = i; break; } } } return new Point(column, row); } /* * 判断way[][]和map[][]的对应关系，及目标区域是否都变成了箱子 */ public static boolean isSuccess(int map[][], int way[][], int keyCode) { boolean flag = true; /* */ for (int i = 0; i < map.length; i++) { for (int j = 0; j < map[0].length; j++) { if (way[i][j] == keyCode) { if (map[i][j] != keyCode + 3) { flag = false; break; } } } } return flag; } }
GameView.java
package edu.pushbox; import android.annotation.SuppressLint; import android.content.Context; import android.graphics.Bitmap; import android.graphics.Canvas; import android.graphics.Paint; import android.graphics.drawable.Drawable; import android.util.AttributeSet; import android.util.Log; import android.view.KeyEvent; import android.view.View; import android.view.WindowManager; import android.widget.Toast; import edu.phshbox.R; import edu.pushbox.util.Point; import edu.pushbox.util.Position; public class GameView extends View { int width = 0; int oxOff = 15; int oyOff = 30; GameMain gameMain = null; public final int WALL = 1;// 墻 public final int GOAL = 2;// 目標區域 public final int ROAD = 3;// 路 public final int BOX = 4;// 箱子 public final int BOX_AT_GOAL = 5;// 箱子的目標位置 public final int WORKER = 6;// private Point workPoint; public static int picSize = 30; private int map[][] = null;// 路的位置 private int way[][] = null;// 原始路的位置 private int row = 0; private int col = 0; private static int grade = 0; private Bitmap picture[] = null; public GameView(Context context, AttributeSet attrs) { super(context, attrs); gameMain = (GameMain) context; WindowManager win = gameMain.getWindowManager(); width = win.getDefaultDisplay().getWidth(); init(); } public void init() { initMap(); initWay(); workPoint = Position.getPosition(map, WORKER);// 找到人的坐标 reset(); initPicture(); } @Override public boolean onKeyDown(int keyCode, KeyEvent event) { // Log.d("workPoint", workPoint.column + "," + workPoint.row); if (keyCode == KeyEvent.KEYCODE_DPAD_DOWN) { moveDown(); } else if (keyCode == KeyEvent.KEYCODE_DPAD_UP) { moveUp(); } else if (keyCode == KeyEvent.KEYCODE_DPAD_LEFT) { moveLeft(); } else if (keyCode == KeyEvent.KEYCODE_DPAD_RIGHT) { moveRight(); } if (Position.isSuccess(map, way, GOAL)) { Toast.makeText(this.getContext(), "SUCCESS", Toast.LENGTH_LONG) .show(); grade++; init(); } invalidate(); return super.onKeyDown(keyCode, event); } /*
*当人移动时，要判断人的将要移动到的位置，如果该位置是路/或是目标区域则移动。
*如果该位置是箱子，或者是箱子的目标位置，由于人要推箱子，则判断箱子的下一个位置，如果是目标区域/路，则人推着箱子移动，
*如果不是则该箱子不能被推动。
*/
private void moveDown() { /* * 推箱子的逻辑， * 路 * 目标区域 * 墙 * 箱子 * 箱子的目标位置 */ int wrow = workPoint.row, wcolumn = workPoint.column; if (map[wrow + 1][wcolumn] == BOX || map[wrow + 1][wcolumn] == BOX_AT_GOAL) {// 箱子或箱子的目標區域 if (map[wrow + 2][wcolumn] == GOAL || map[wrow + 2][wcolumn] == ROAD) { // map[wrow + 2][wcolumn] = map[wrow + 2][wcolumn] == GOAL ? BOX_AT_GOAL : BOX; map[wrow + 1][wcolumn] = WORKER; map[wrow][wcolumn] = roadOrGoal(); workPoint.row++; } } else {// 路，目標區域 if (map[wrow + 1][wcolumn] == ROAD || map[wrow + 1][wcolumn] == GOAL) { map[wrow + 1][wcolumn] = WORKER; map[wrow][wcolumn] = roadOrGoal(); workPoint.row++; } } } private void moveUp() { /* * 向上移動 */ int wrow = workPoint.row, wcolumn = workPoint.column; if (map[wrow - 1][wcolumn] == BOX || map[wrow - 1][wcolumn] == BOX_AT_GOAL) { // 箱子或箱子的目標區域 if (map[wrow - 2][wcolumn] == GOAL || map[wrow - 2][wcolumn] == ROAD) { map[wrow - 2][wcolumn] = map[wrow - 2][wcolumn] == GOAL ? BOX_AT_GOAL : BOX; map[wrow - 1][wcolumn] = WORKER; map[wrow][wcolumn] = roadOrGoal(); workPoint.row--; } } else { if (map[wrow - 1][wcolumn] == GOAL || map[wrow - 1][wcolumn] == ROAD) { map[wrow - 1][wcolumn] = map[wrow - 1][wcolumn] == GOAL ? BOX_AT_GOAL : BOX; map[wrow - 1][wcolumn] = WORKER; map[wrow][wcolumn] = roadOrGoal(); workPoint.row--; } } } private void moveRight() { /* * 向上移動 */ int wrow = workPoint.row, wcolumn = workPoint.column; if (map[wrow][wcolumn + 1] == BOX || map[wrow][wcolumn + 1] == BOX_AT_GOAL) { // 箱子或箱子的目標區域 if (map[wrow][wcolumn + 2] == GOAL || map[wrow][wcolumn + 2] == ROAD) { map[wrow][wcolumn + 2] = map[wrow][wcolumn + 2] == GOAL ? BOX_AT_GOAL : BOX; map[wrow][wcolumn + 1] = WORKER; map[wrow][wcolumn] = roadOrGoal(); workPoint.column++; } } else { if (map[wrow][wcolumn + 1] == GOAL || map[wrow][wcolumn + 1] == ROAD) { map[wrow][wcolumn + 1] = map[wrow][wcolumn + 1] == GOAL ? BOX_AT_GOAL : BOX; map[wrow][wcolumn + 1] = WORKER; map[wrow][wcolumn] = roadOrGoal(); workPoint.column++; } } } private void moveLeft() { /* * 向上移動 */ int wrow = workPoint.row, wcolumn = workPoint.column; if (map[wrow][wcolumn - 1] == BOX || map[wrow][wcolumn - 1] == BOX_AT_GOAL) { // 箱子或箱子的目標區域 if (map[wrow][wcolumn - 2] == GOAL || map[wrow][wcolumn - 2] == ROAD) { map[wrow][wcolumn - 2] = map[wrow][wcolumn - 2] == GOAL ? BOX_AT_GOAL : BOX; map[wrow][wcolumn - 1] = WORKER; map[wrow][wcolumn] = roadOrGoal(); workPoint.column--; } } else { if (map[wrow][wcolumn - 1] == GOAL || map[wrow][wcolumn - 1] == ROAD) { map[wrow][wcolumn - 1] = map[wrow][wcolumn - 1] == GOAL ? BOX_AT_GOAL : BOX; map[wrow][wcolumn - 1] = WORKER; map[wrow][wcolumn] = roadOrGoal(); workPoint.column--; } } } private int roadOrGoal() { // 判斷row,column是目標false，或者是路true int result = ROAD; if (way[workPoint.row][workPoint.column] == GOAL) result = GOAL; return result; } /* * 重置pageSize col-row */ public void reset() { row = map.length; col = map[0].length; picSize = (int) Math.floor((width - oxOff - oyOff) / col); Log.d("width", width + ""); Log.d("pageSize", picSize + ""); } // 初始化路 private void initMap() { map = MapList.getMap(grade); // resetRowCol(); } // 初始化路 private void initWay() { way = MapList.getMap(grade); // resetRowCol(); } private void initPicture() { // resetPicSize(); picture = new Bitmap[7]; loadPicture(WALL, R.drawable.wall); loadPicture(GOAL, R.drawable.goal); loadPicture(ROAD, R.drawable.road); loadPicture(BOX, R.drawable.box); loadPicture(BOX_AT_GOAL, R.drawable.box_at_goal); loadPicture(WORKER, R.drawable.worker); } private void loadPicture(int key, int pictureId) { Drawable drawable = getResources().getDrawable(pictureId); Bitmap bitMap = Bitmap.createBitmap(picSize, picSize, Bitmap.Config.ARGB_8888); drawable.setBounds(0, 0, picSize, picSize); Canvas canvas = new Canvas(bitMap); drawable.draw(canvas); picture[key] = bitMap; } @SuppressLint("DrawAllocation") @Override protected void onDraw(Canvas canvas) { Paint paint = new Paint(); for (int i = 0; i < row; i++) { for (int j = 0; j < col; j++) { if (map[i][j] > 0) canvas.drawBitmap(picture[map[i][j]], oxOff + picSize * j, oyOff + picSize * i, paint); } } super.onDraw(canvas); } }
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