我在检查枚举值的索引时遇到问题,我有一个带有varargs整数的枚举,如果该整数大于1并且是可替换项,那么当我得到下一个索引时,我将它递增1 。但是,当增量后没有另一个整数,游戏崩溃时,我一直试图在过去的半小时左右找到解决方案,我似乎无法检查它是否是最后一个索引枚举。我知道这是一个非常本地化的问题,但我需要一些帮助。
代码:
private int getNextId(Food food, int id) {
if (food.getType().equals(REPLACE)) {
for (int i = 0; i < food.getIds().length; i++) {
if (food.getIds()[i] == id) {
return food.getIds()[i + 1];
}
}
}
return -1;
}
枚举:
private enum Food {
SHRIMP(REMOVE, 3, 315),
LOBSTER(REMOVE, 12, 379),
MANTA_RAY(REMOVE, 22, 391),
MONKFISH(REMOVE, 16, 7946),
MACKREL(REMOVE, 6, 355),
SALMON(REMOVE, 9, 329),
SEA_TURTLE(REMOVE, 22, 397),
SHARK(REMOVE, 20, 385),
SWORDFISH(REMOVE, 14, 373),
TROUT(REMOVE, 7, 333),
TUNA(REMOVE, 10, 361),
TUNA_POTATO(REMOVE, 22, 7060),
CAKE(REPLACE, 4, 1891, 1893, 1895),
CHOCOLATE_CAKE(REPLACE, 5, 1897, 1899, 1901),
PLAIN_PIZZA(REPLACE, 7, 2289, 2291),
MEAT_PIZZA(REPLACE, 8, 2293, 2295),
ANCHOVY_PIZZA(REPLACE, 9, 2297, 2299),
PINEAPPLE_PIZZA(REPLACE, 11, 2301, 2303),
APPLE_PIE(REPLACE, 7, 2323, 2335),
REDBERRY_PIE(REPLACE, 5, 2325, 2333),
MEAT_PIE(REPLACE, 6, 2327, 2331);
private final ConsumableType type;
private final int healAmount;
private final int[] ids;
private Food(ConsumableType type, int healAmount, int... ids) {
this.type = type;
this.ids = ids;
this.healAmount = healAmount;
}
public ConsumableType getType() {
return type;
}
public int getHealAmount() {
return healAmount;
}
public int[] getIds() {
return ids;
}
public String getName() {
return name().toLowerCase().replaceAll("_", " ");
}
}
哦,还有另一个注意事项,我试过检查它是 -1 还是 0 ,但就像我说的那样我似乎无法弄明白。谢谢你提前。
答案 0 :(得分:1)
private int getNextId(Food food, int id) {
if (food.getType().equals(REPLACE)) {
int n = food.getIds().length;
for (int i = 0; i < n; i++) {
if (food.getIds()[i] == id && (i+1) < n) {
return food.getIds()[i + 1];
}
}
}
return -1;
}
在上面的方法中,只有当它存在时才返回下一个Id,否则返回-1。