java 实现时时彩算法
用java实现的重庆时时彩兑奖算法：
import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.List;
/**
* 重庆时时彩
* @author Tmser
* @since 2012.8.29
*/
public class CqsscBonusCalc {
/**开奖号位数 --5*/
public static final int AWARDCODE_SIZE = 5;
/**一星彩玩法*/
public static final int STARS_LOTTERY = 0;
/**大小单双玩法*/
public static final int BIG_SMALL = 1;
/**二星组选*/
public static final int TWO_STARS = 2;
/**5星通选*/
public static final int FIVE_STARS = 3;
/**星彩1星奖金*/
public static final double STARS_LOTTERY_ONE_STARS_BONUS = 10;
/**星彩2星奖金*/
public static final double STARS_LOTTERY_TWO_STARS_BONUS = 100;
/**星彩3星奖金*/
public static final double STARS_LOTTERY_THREE_STARS_BONUS = 1000;
/**星彩5星奖金*/
public static final double STARS_LOTTERY_FIVVE_STARS_BONUS = 100000;
/**大小单双奖金*/
public static final double BIG_SMALL_BONUS = 4;
/**二星组选奖金*/
public static final double TWO_STARS_GROUP_BONUS = 50;
/**二星组选个十同号奖金*/
public static final double TWO_STARS_GROUP_SAME_NUMBER_BONUS = 100;
/**5星通选1等奖奖金*/
public static final double FIVE_STARS_LEVEL1_BONUS = 20000;
/**5星通选2等奖奖金*/
public static final double FIVE_STARS_LEVEL2_BONUS = 200;
/**5星通选3等奖奖金*/
public static final double FIVE_STARS_LEVEL3_BONUS = 20;
/**五星通选*/
/**5个数字全相同，中一等奖*/
public static final int FIVE_STARS_LEVEL1 = 1;
/**前三个数字或者后三个数字相同，中1个2等奖*/
public static final int FIVE_STARS_LEVEL2 = 2;
/**前两个数字或者后两个数字相同，中1个三等奖*/
public static final int FIVE_STARS_LEVEL3 = 3;
/**星彩玩法*/
public static final int ONE_STARS_PRIZE = 4;
public static final int TWO_STARS_PRIZE = 5;
public static final int THREE_STARS_PRIZE = 6;
public static final int FIVE_STARS_PRIZE = 7;
/**大小单双玩法*/
public static final int BIG_SMALL_PRIZE = 8;
/**二星组选*/
public static final int TWO_STARTS_GROUP_PRIZE = 9;
public static final int TWO_STARTS_GROUP_SAME_NUMBER_PRIZE = 10;
//2-大，1-小，3-单，4-双
public static final String BIG = "2";
public static final String SMALL = "1";
public static final String SINGULAR = "3";
public static final String EVEN = "4";
/**未中奖*/
public static final int NO_PRIZE_LEVEL = -1;
/**中奖*/
public static final int IS_BINGO = 0;
/**
* 根据5星通选奖级计算奖金
*/
public static BigDecimal getFiveStarBonus(int rank) {
switch(rank) {
case FIVE_STARS_LEVEL1:
return new BigDecimal(FIVE_STARS_LEVEL1_BONUS);
case FIVE_STARS_LEVEL2:
return new BigDecimal(FIVE_STARS_LEVEL2_BONUS);
case FIVE_STARS_LEVEL3 :
return new BigDecimal(FIVE_STARS_LEVEL3_BONUS);
}
return new BigDecimal(0);
}
/**
* 计算五星通选中奖等级
* @param userCode 用户投注号码
* @param awardCode 开奖号码
*/
public static int haveFiveStarRank(String userCode, String awardCode) {
if(userCode == null || awardCode == null ||
userCode.length() != awardCode.length())
{
return NO_PRIZE_LEVEL;
}
String[] userCodes = userCode.split(",");
String[] awardCodes = awardCode.split(",");
int equalNum = 0;
for(int i = 0; i < userCodes.length; i++) {
if(!userCodes[i].equals(awardCodes[i])) {
break;
}
equalNum++;
}
switch (equalNum) {
case 5:return FIVE_STARS_LEVEL1;
case 4:
case 3:return FIVE_STARS_LEVEL2;
}
return NO_PRIZE_LEVEL;
}
/**
* 判断后两位数字是否相同
*/
private static boolean isLastTwoCodesEqual(String[] userCodes, String[] awardCodes) {
return userCodes[userCodes.length - 1].equals(awardCodes[awardCodes.length - 1])
&&userCodes[userCodes.length - 2].equals(awardCodes[awardCodes.length - 2]);
}
public static int haveRank(int type,String userCode, String awardCode) {
if(userCode == null || awardCode == null)
{
return NO_PRIZE_LEVEL;
}
int equalNum = 0;
switch(type){
case STARS_LOTTERY:
//TODO *根据type计算星数startsNum
int startsNum = 0 ;
haveStartsLotteryRank(startsNum,userCode, awardCode);
break;
case BIG_SMALL:
haveBigSmallRank(userCode, awardCode);
break;
case TWO_STARS:
haveTwoStarGroupRank(userCode, awardCode);
break;
case FIVE_STARS:
//TODO *五星通选计算不正确
haveFiveStarRank(userCode, awardCode);
break;
}
switch (equalNum) {
case 5:return FIVE_STARS_LEVEL1;
case 4:
case 3:return FIVE_STARS_LEVEL2;
case 1:
return FIVE_STARS_LEVEL3;
}
return NO_PRIZE_LEVEL;
}
/**
* 星彩玩法
* @param type 星数 1,2,3,5
* @param userCode 用户号码
* @param awardCode 开奖号码
* @return int
*/
public static int haveStartsLotteryRank(int startsNum, String userCode, String awardCode)
{
if(userCode == null || awardCode == null)
{
return NO_PRIZE_LEVEL;
}
String[] userCodes = userCode.split(",");
String[] awardCodes = awardCode.split(",");
int equalNum = 0;
//
if(startsNum == 0){
startsNum = userCodes.length;
}
for(int i=0;i<startsNum;i++)
{
int uIndex = startsNum - i -1;
int aIndex = awardCodes.length - i -1;
if(!userCodes[uIndex].equals(awardCodes[aIndex]) )
break;
else
equalNum++;
}
if (startsNum == equalNum)
{
switch(startsNum)
{
case 1:
return ONE_STARS_PRIZE;
case 2:
return TWO_STARS_PRIZE;
case 3:
return THREE_STARS_PRIZE;
case 5:
return FIVE_STARS_PRIZE;
default:
return NO_PRIZE_LEVEL;
}
}
else
return NO_PRIZE_LEVEL;
}
public static void main(String[] args) {
System.out.println(CqsscBonusCalc.haveBigSmallRank("23", "4,8,4,5,1"));
}
private static void addBSList(String num,List<String> list){
Boolean isbig = isBig(num);
Boolean issingular = isSingular(num);
if(isbig == null || issingular == null)
return ;
if(isbig){
list.add(BIG);
}else{
list.add(SMALL);
}
if(issingular){
list.add(SINGULAR);
}else{
list.add(EVEN);
}
}
/**
* 大小单双玩法
* @param userCode
* @param awardCode
* @return
*/
public static int haveBigSmallRank(String userCode, String awardCode)
{
if(userCode == null || awardCode == null )
{
return NO_PRIZE_LEVEL;
}
String[] userCodes = userCode.trim().split("");
String[] awardCodes = awardCode.split(",");
List<String> geweiList = new ArrayList<String>();
List<String> shiweiList = new ArrayList<String>();
if(awardCodes.length == AWARDCODE_SIZE)
{
addBSList(awardCodes[AWARDCODE_SIZE-1],geweiList);
addBSList(awardCodes[AWARDCODE_SIZE-2],shiweiList);
if(geweiList.contains(userCodes[2]) && shiweiList.contains(userCodes[1])){
return BIG_SMALL_PRIZE;
}
}
return NO_PRIZE_LEVEL;
}
/**
* 二星组选
* @param userCode
* @param awardCode
* @return
*/
public static int haveTwoStarGroupRank(String userCode, String awardCode)
{
if(userCode == null || awardCode == null)
{
return NO_PRIZE_LEVEL;
}
String[] userCodes = userCode.split(",");
String[] awardCodes = awardCode.split(",");
if ((userCodes[0].equals(awardCodes[3]) && userCodes[1].equals(awardCodes[4]))
|| (userCodes[0].equals(awardCodes[4]) && userCodes[1].equals(awardCodes[3])))
{
if (awardCodes[3] == awardCodes[4])
return TWO_STARTS_GROUP_SAME_NUMBER_PRIZE;
else
return TWO_STARTS_GROUP_PRIZE;
}
return NO_PRIZE_LEVEL;
}
public static Boolean isSingular(String number)
{
int num = -1;
try {
num = Integer.parseInt(number);
} catch (NumberFormatException e) {
return null;
}
if(num < 0 || num > 9)
return null;
if( num%2 == 1)
{
return true;
}else{
return false;
}
}
public static Boolean isBig(String number)
{
int num = -1;
try {
num = Integer.parseInt(number);
} catch (NumberFormatException e) {
return null;
}
if(0 <= num && num < 5){
return false;
}else if(num >=5 && num < 10){
return true;
}
return null;
}
}
