Question

我在我的项目中遇到了与邻居有关的问题，我必须修改两种不同的方法来进行康沃尔的生活游戏。我的TA说我的代码看起来应该可以工作但是neightbor计数不起作用。我已经打印了neightbor代码并且它第一次工作，而不是在剩下的运行中只到0。任何人都知道我搞砸了什么？

public static void updateLife(Boolean[][] gameCellAlive) {
int size = gameCellAlive.length;
System.out.println("size of temp--->"+size);
Boolean[][] tempCell = new Boolean [size][size];
int row = 0;
int col = 0;
for (row = 0; row<tempCell.length; row++) {
for(col=0; col<tempCell[0].length; col++) {
tempCell[row][col] = gameCellAlive[row][col];
}
}   
for (int i = 0; i<tempCell.length; i++) {
for (int j = 0; j<tempCell[0].length; j++) {
int tempInt = getLifeNeighborCount(gameCellAlive, j, i);
System.out.println("neighbors---->"+tempInt);
if  ((tempInt>3) || (tempInt<2)) {
tempCell[i][j] = false;
}
else if(tempInt == 3) {
tempCell[i][j] = true;
}
else if(tempInt==2) {
tempCell[i][j]=true;
}
/*else {
tempCell[row][col]=gameCellAlive[row][col];
}*/

}//2nd for loop
}//for loop

for (int x = 0; x<tempCell.length; x++) {
for(int y=0; y<tempCell[0].length; y++) {
gameCellAlive[x][y] = tempCell[x][y];
}
}

  // METHOD STUB - This method needs to be implemented!
//if statemeent for requirements.
} // end method updateLife

/**
 *
 * @param gameBoard A 2D boolean array containing the current life status of
 * each cell at each x,y coordinate on the board. true indicates that the
 * cell is alive. false indicates no life in that cell.
 * @param colIndex The x position of the cell in the game board whose
 * neighbors are to be counted.
 * @param rowIndex The y position of the cell in the game board whose
 * neighbors are to be counted.
 * @return the number of cells adjacent to the cell at the specified row and
 * column that contain life. This value ranges between 0 (no adjacent cells
 * contain life) and 8 (all adjacent cells contain life).
 *
 * CS1180 Note: YOU NEED TO IMPLEMENT THIS METHOD
 */
public static int getLifeNeighborCount(Boolean[][] gameBoard, int colIndex, int rowIndex) {
    // METHOD STUB - THIS METHOD NEEDS TO BE IMPLEMENTED
    int neighborCount = 0;

    //check for alive or dead
    for (int i = rowIndex-1; i<=rowIndex+1; i++) {
    for (int j = colIndex-1; j<=rowIndex+1; j++) {
    try {
    if (gameBoard[i][j]==true  && (i !=rowIndex || j!=colIndex)) {
    //System.out.println("hello");
    neighborCount++;
    }//end if
    }//end try

    catch (ArrayIndexOutOfBoundsException e){         
    }//end catch
    }//end second foor loop
    }//end first foor loop
    return neighborCount;
    }// end method getLifeNeighborCount

Answer 1

您在此循环中的条件中使用了错误的变量：

for (int j = colIndex-1; j<=rowIndex+1; j++) {

应该是：

for (int j = colIndex-1; j<=colIndex+1; j++) {

康威生命游戏邻居问题（java）

1 个答案: