制作一个 java 2048 游戏,滑动时它经过循环的次数超过应有的次数,并命中 tests/alters 个已经改变的数字
Making a java 2048 game, upon sliding it goes through the loop more times than it should and hits tests/alters numbers already altered
所以我有一个可靠的滑动功能,问题是(这很难解释!)它遍历了所有可能性,包括二维数组中已经添加在一起的空间:假设有一个设置this: 4,4,8,2 ---向右滑动一次后,结果如下:,_,16,2。然而在实际游戏中,向右滑动一次后,它应该是这样的:___,8,2.
基本上,我该如何解决这个问题?你不需要告诉我代码,这是我的期末项目,但我想得到一些关于为什么会这样的解释。
我试图从右到左遍历数组,但这导致数字甚至没有移动。
processUserChoice(String i) {
if (i.equals("d")) {
while ((slideRight())) {
moveRight();
}
}
printBoard();
}
public boolean slideRight() {
for (int i = 0; i < board.length; i++) {
for (int j = 0; j < board[i].length - 1; j++) {
if (board[i][j + 1] == 0 && board[i][j] != 0) {
return true;
} else if (board[i][j + 1] == board[i][j] && board[i][j] != 0) {
return true;
}
}
}
return false;
}
public void moveRight() {
for (int i = 0; i < board.length; i++) {
for (int j = 0; j < board[i].length - 1; j++) {
if (board[i][j + 1] == 0 && board[i][j] != 0) {
board[i][j + 1] = board[i][j];
board[i][j] = 0;
} else if (board[i][j + 1] == board[i][j] && board[i][j] != 0) {
board[i][j + 1] = board[i][j + 1] + board[i][j];
board[i][j] = 0;
}
}
}
//checkLose();
}
向右滑动一次后,它应该是这样的:“___,8,2”(来自前面的示例)。
我以前做过类似的事情。我会以与您现在几乎相同的方式来做,但是添加一个布尔数组来检查图块是否发生碰撞,并且只合并没有发生碰撞的图块。
class Tile {
public int value;
public Boolean collided;
public Tile(int value) {
this.value = value;
collided = false;
}
public Tile attemptMerge(Tile target) {
if (target.value == value) {
Tile t = new Tile(value * 2);
t.collided = true;
return t;
} else {
return null;
}
}
public void reset() {
value = 0;
collided = false;
}
}
主更新循环中的某处:
void slideRight() {
for (int row = 0; row < 4; row++) {
for (int column = 3; column >= 0; column--) {
Tile current = board[row][column];
if (current.value == 0) continue;
for (int slot = column + 1; slot < 3; slot++) {
Tile target = board[row][slot];
if (target.value == 0) {
target.value = current.value;
current = target;
board[row][slot - 1].reset();
} else if (target.value == current.value) {
Tile product = target.merge(current);
if (!target.collided && !current.collided) {
current = product;
board[row][slot - 1].reset();
} else {
break;
}
} else {
break;
}
}
}
}
}
我相信按照这些思路应该可以奏效。逻辑有问题请见谅
所以我有一个可靠的滑动功能,问题是(这很难解释!)它遍历了所有可能性,包括二维数组中已经添加在一起的空间:假设有一个设置this: 4,4,8,2 ---向右滑动一次后,结果如下:,_,16,2。然而在实际游戏中,向右滑动一次后,它应该是这样的:___,8,2.
基本上,我该如何解决这个问题?你不需要告诉我代码,这是我的期末项目,但我想得到一些关于为什么会这样的解释。
我试图从右到左遍历数组,但这导致数字甚至没有移动。
processUserChoice(String i) {
if (i.equals("d")) {
while ((slideRight())) {
moveRight();
}
}
printBoard();
}
public boolean slideRight() {
for (int i = 0; i < board.length; i++) {
for (int j = 0; j < board[i].length - 1; j++) {
if (board[i][j + 1] == 0 && board[i][j] != 0) {
return true;
} else if (board[i][j + 1] == board[i][j] && board[i][j] != 0) {
return true;
}
}
}
return false;
}
public void moveRight() {
for (int i = 0; i < board.length; i++) {
for (int j = 0; j < board[i].length - 1; j++) {
if (board[i][j + 1] == 0 && board[i][j] != 0) {
board[i][j + 1] = board[i][j];
board[i][j] = 0;
} else if (board[i][j + 1] == board[i][j] && board[i][j] != 0) {
board[i][j + 1] = board[i][j + 1] + board[i][j];
board[i][j] = 0;
}
}
}
//checkLose();
}
向右滑动一次后,它应该是这样的:“___,8,2”(来自前面的示例)。
我以前做过类似的事情。我会以与您现在几乎相同的方式来做,但是添加一个布尔数组来检查图块是否发生碰撞,并且只合并没有发生碰撞的图块。
class Tile {
public int value;
public Boolean collided;
public Tile(int value) {
this.value = value;
collided = false;
}
public Tile attemptMerge(Tile target) {
if (target.value == value) {
Tile t = new Tile(value * 2);
t.collided = true;
return t;
} else {
return null;
}
}
public void reset() {
value = 0;
collided = false;
}
}
主更新循环中的某处:
void slideRight() {
for (int row = 0; row < 4; row++) {
for (int column = 3; column >= 0; column--) {
Tile current = board[row][column];
if (current.value == 0) continue;
for (int slot = column + 1; slot < 3; slot++) {
Tile target = board[row][slot];
if (target.value == 0) {
target.value = current.value;
current = target;
board[row][slot - 1].reset();
} else if (target.value == current.value) {
Tile product = target.merge(current);
if (!target.collided && !current.collided) {
current = product;
board[row][slot - 1].reset();
} else {
break;
}
} else {
break;
}
}
}
}
}
我相信按照这些思路应该可以奏效。逻辑有问题请见谅