我正在做人生游戏。

以下代码用于检查该点有多少个邻居。

public int neighbours(int x, int y){
    int result = 0;
if(x!=0 && y!=0 && y!=getHeight() && x!= getLength()){
    if (life[x - 1][y + 1] == 1)
        result++;
    else if (life[x][y + 1] == 1)
        result++;
    else if (life[x + 1][y + 1] == 1)
        result++;
    else if (life[x + 1][y] == 1)
        result++;
    else if (life[x + 1][y - 1] == 1)
        result++;
    else if (life[x][y - 1] == 1)
        result++;
    else if (life[x - 1][y - 1] == 1)
        result++;
    else if (life[x - 1][y] == 1)
        result++;
} else if(x==0 && y==0){
    if (life[x][y + 1] == 1)
        result++;
    else if (life[x + 1][y + 1] == 1)
        result++;
    else if (life[x + 1][y] == 1)
        result++;
}
else if(x==0 && y==getHeight()){
    if (life[x + 1][y] == 1)
        result++;
    else if (life[x + 1][y - 1] == 1)
        result++;
    else if (life[x][y - 1] == 1)
        result++;
}
else if(y==getHeight() && x==getLength()){
    if (life[x][y - 1] == 1)
        result++;
    else if (life[x - 1][y - 1] == 1)
        result++;
    else if (life[x - 1][y] == 1)
        result++;
}
else if(y==0 && x==getLength()){
    if (life[x - 1][y + 1] == 1)
        result++;
    else if (life[x][y + 1] == 1)
        result++;
    else if (life[x - 1][y] == 1)
        result++;
}
else if (x==0){
    if (life[x][y + 1] == 1)
        result++;
    else if (life[x + 1][y + 1] == 1)
        result++;
    else if (life[x + 1][y] == 1)
        result++;
    else if (life[x + 1][y - 1] == 1)
        result++;
    else if (life[x][y - 1] == 1)
        result++;
}
else if(y==getHeight()){
    if (life[x + 1][y] == 1)
        result++;
    else if (life[x + 1][y - 1] == 1)
        result++;
    else if (life[x][y - 1] == 1)
        result++;
    else if (life[x - 1][y - 1] == 1)
        result++;
    else if (life[x - 1][y] == 1)
        result++;
}
else if(x==getLength()){
    if (life[x - 1][y + 1] == 1)
        result++;
    else if (life[x][y + 1] == 1)
        result++;
    else if (life[x][y - 1] == 1)
        result++;
    else if (life[x - 1][y - 1] == 1)
        result++;
    else if (life[x - 1][y] == 1)
        result++;
}
else if(y==0 && x!=getLength() && x!=0){
    if (life[x - 1][y + 1] == 1)
        result++;
    else if (life[x][y + 1] == 1)
        result++;
    else if (life[x + 1][y + 1] == 1)
        result++;
    else if (life[x + 1][y] == 1)
        result++;
    else if (life[x - 1][y] == 1)
        result++;
}
    return result;
}


如您所见,我尝试解决所有异常,但是程序不断给我以下错误:

Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 30
at LifeGrid.neighbours(LifeGrid.java:165)
at LifeGrid.run(LifeGrid.java:179)
at TestLife.main(TestLife.java:15)


你们有什么主意,当我处理所有可能的异常时,为什么仍会发生越界异常。

最佳答案

您需要检查

关于java - 用Java创建生活游戏,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/19914625/

10-11 22:29
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