游戏自定义金币单位换算管理类

https://blog.csdn.net/QuVi_God/article/details/83382628

根据这篇游戏金币管理类文章，所改写的Java版本的游戏金币管理类。

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金币单位枚举类：

public enum GoldUnit {//自定义的金币单位类型N(0), K(1), M(2), B(3), T(4),aa(5),ab(6),ac(7),ad(8),ae(9),af(10),ag(11),ah(12),ai(13),aj(14),ak(15),al(16),am(17),an(18),ao(19),ap(20),aq(21),ar(22),as(23),at(24),au(25),av(26),aw(27),ax(28),ay(29),az(30),;private int value;private GoldUnit(int value){this.value = value;}public int getValue(){return value;}public static GoldUnit parse(int value){GoldUnit[] states = GoldUnit.values();for (GoldUnit s : states){if (s.getValue() == value)return s;}return N;}
}

金币单位管理实现类：

public class GoldNum {/*** 金币+单位*/private String goldCountText;/*** 单位枚举*/private Integer goldUnit;/*** 金币金额*/private Double goldValue;public String GoldCountText;public String value;// 构造函数public GoldNum(String value) {value = value.trim();// 删除字符串首部和尾部的空格boolean isSingleDigit = true;//遍历金币单位枚举for (int i = 30; i >= 0; i--) {if (value.endsWith(GoldUnit.parse(i).toString())) {value = value.replace(GoldUnit.parse(i).toString(), "");isSingleDigit = false;goldUnit = i;goldValue = Double.parseDouble(value);break;}}//没有单位if (isSingleDigit) {goldUnit = 0;goldValue = Double.parseDouble(value);}//值大于500  进一位while (goldValue > 500 && goldUnit < 30) {goldUnit++;goldValue /= 1000;}//值大于0 小于 1 且 拥有金币单位  退一位while (goldValue > 0 && goldValue < 1 && goldUnit > 0) {goldUnit--;goldValue *= 1000;}}// 构造函数public GoldNum(Double value) {goldUnit = 0;goldValue = (double) Math.round(value);while (goldValue > 500 && goldUnit < 30) {goldUnit++;goldValue /= 1000;}while (goldValue > 0 && goldValue < 1 && goldUnit > 0) {goldUnit--;goldValue *= 1000;}}public String getGoldCountText() {String p="";if (goldUnit == 0) {goldCountText = Math.round(goldValue) + "";} else {BigDecimal bg = new BigDecimal(goldValue);float tempValue = bg.setScale(2, BigDecimal.ROUND_HALF_UP).floatValue();if (Math.round(tempValue) - tempValue == 0) {p=String.valueOf(Math.round(tempValue));}else{//保留小数点后两位DecimalFormat decimalFormat = new DecimalFormat(".00");p = decimalFormat.format(tempValue);}goldCountText = p + (GoldUnit.parse(goldUnit)).toString();}return goldCountText;}public void setGoldCountText(String value) {if (value != null) {if (!value.equals(this.value)) {this.value = value;}} else {if (value != this.value) {this.value = value;}}goldCountText = value;}public Integer getGoldUnit() {return goldUnit;}public void setGoldUnit(Integer goldUnit) {this.goldUnit = goldUnit;}public Double getGoldValue() {return goldValue;}public void setGoldValue(Double goldValue) {this.goldValue = goldValue;}public String getValue() {return value;}public void setValue(String value) {this.value = value;}public static GoldNum GoldNum(String value) {GoldNum goldNum = null;int length = value.length();if (length <= 3) {goldNum = new GoldNum(value);}return goldNum;}/*** 加法* * @param A* @param B* @return*/public static GoldNum add(GoldNum A, GoldNum B) {int limit = 4;int tempUnit = 0;Double tempValue = 0.0;if (A.goldUnit == B.goldUnit) {tempUnit = A.goldUnit;tempValue = A.goldValue + B.goldValue;} else if (A.goldUnit > B.goldUnit) {if (A.goldUnit - B.goldUnit <= limit) {tempUnit = A.goldUnit;tempValue = (Double) (A.goldValue + B.goldValue / Math.pow(1000, A.goldUnit - B.goldUnit));} else if (A.goldUnit - B.goldUnit > limit) {tempUnit = A.goldUnit;tempValue = A.goldValue;}} else if (A.goldUnit < B.goldUnit) {if (B.goldUnit - A.goldUnit <= limit) {tempUnit = B.goldUnit;tempValue = (Double) (A.goldValue / Math.pow(1000, B.goldUnit - A.goldUnit) + B.goldValue);} else if (B.goldUnit - A.goldUnit > limit) {tempUnit = B.goldUnit;tempValue = B.goldValue;}}GoldNum result = new GoldNum(tempValue + (GoldUnit.parse(tempUnit)).toString());return result;}/*** 减法* * @param A* @param B* @return*/public static GoldNum sub(GoldNum A, GoldNum B) {int limit = 4;int tempUnit = 0;Double tempValue = 0.0;if (A.goldUnit == B.goldUnit) {tempUnit = A.goldUnit;tempValue = A.goldValue - B.goldValue;if(tempValue==0){tempUnit=0;}} else if (A.goldUnit > B.goldUnit) {if (A.goldUnit - B.goldUnit <= limit) {tempUnit = A.goldUnit;tempValue = (Double) (A.goldValue - B.goldValue / Math.pow(1000, A.goldUnit - B.goldUnit));} else if (A.goldUnit - B.goldUnit > limit) {tempUnit = A.goldUnit;tempValue = A.goldValue;}} else if (A.goldUnit < B.goldUnit) {if (B.goldUnit - A.goldUnit <= limit) {tempUnit = B.goldUnit;tempValue = (Double) (A.goldValue / Math.pow(1000, B.goldUnit - A.goldUnit) - B.goldValue);} else if (B.goldUnit - A.goldUnit > limit) {tempUnit = B.goldUnit;tempValue = -B.goldValue;}}GoldNum result = new GoldNum(tempValue + (GoldUnit.parse(tempUnit)).toString());return result;}/*** 乘法* * @param A* @param B* @return*/public static GoldNum mul(GoldNum A, float B) {int tempUnit = A.goldUnit;Double tempValue = A.goldValue * B;GoldNum result = new GoldNum(tempValue + (GoldUnit.parse(tempUnit)).toString());return result;}/*** 乘法* * @param A* @param B* @return*/public static GoldNum mul(GoldNum A, GoldNum B) {int tempUnit = A.goldUnit + B.goldUnit;Double tempValue = A.goldValue * B.goldValue;GoldNum result = new GoldNum(tempValue + (GoldUnit.parse(tempUnit)).toString());return result;}/*** 除法* * @param A* @param B* @return*/public static GoldNum div(GoldNum A, float B) {int tempUnit = A.goldUnit;Double tempValue = A.goldValue / B;GoldNum result = new GoldNum(tempValue + (GoldUnit.parse(tempUnit)).toString());return result;}/*** 大于* * @param A* @param B* @return*/public static boolean than(GoldNum A, GoldNum B) {GoldNum result = GoldNum.sub(A, B);return result.getGoldCountText().startsWith("-");}/*** 小于* * @param A* @param B* @return*/public static boolean less(GoldNum A, GoldNum B) {GoldNum result = GoldNum.sub(A, B);return result.getGoldCountText().startsWith("-");}/*** 大于并且等于* * @param A* @param B* @return*/public static boolean thanAndEqual(GoldNum A, GoldNum B) {GoldNum result = GoldNum.sub(A, B);return !result.getGoldCountText().startsWith("-") || result.getGoldCountText() == "0";}/*** 小于并且等于* * @param A* @param B* @return*/public static boolean lessAndEqual(GoldNum A, GoldNum B) {GoldNum result = GoldNum.sub(A, B);return result.getGoldCountText().startsWith("-") || result.GoldCountText == "0";}/*** 随机数* * @param A* @param B* @return*/public static GoldNum DoubleRandom(GoldNum A, GoldNum B) {int limit = 4;int tempUnit = 0;Double tempValue = 0.0;GoldNum result = null;ThreadLocalRandom random = ThreadLocalRandom.current();if (A.goldUnit == B.goldUnit) {tempUnit = A.goldUnit;if(A.getGoldValue().equals(B.getGoldValue())){tempValue=A.getGoldValue();}else{tempValue = random.nextDouble(A.getGoldValue(), B.getGoldValue());}result = new GoldNum(tempValue + (GoldUnit.parse(A.getGoldUnit())).toString());} else if (B.goldUnit > A.goldUnit) {if (B.goldUnit - A.goldUnit <= limit) {tempValue = (Double) (B.goldValue * Math.pow(1000, B.goldUnit - A.goldUnit));tempValue = random.nextDouble(A.getGoldValue(), tempValue);if (tempValue > 1000) {result = new GoldNum(tempValue + (GoldUnit.parse(B.getGoldUnit()-1)).toString());} else {result = new GoldNum(tempValue + (GoldUnit.parse(A.getGoldUnit())).toString());}} else if (A.goldUnit - B.goldUnit > limit) {tempUnit = A.goldUnit;tempValue = A.goldValue;}}return result;}@Overridepublic String toString() {return "GoldNum [goldCountText=" + goldCountText + ", goldUnit=" + goldUnit + ", goldValue=" + goldValue+ ", GoldCountText=" + GoldCountText + ", value=" + value + "]";}
}

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