From 21684cfa77a1965ad038d4d242193fa68c2968a9 Mon Sep 17 00:00:00 2001
From: jl777 <jameslee777@yahoo.com>
Date: Fri, 22 Mar 2019 01:53:15 -1100
Subject: [PATCH] rngnext

---
 src/cc/gamescc.cpp | 31 +++++++++++++++++++++++++------
 src/cc/gamescc.h   | 10 +++++-----
 2 files changed, 30 insertions(+), 11 deletions(-)

diff --git a/src/cc/gamescc.cpp b/src/cc/gamescc.cpp
index 02ead4d8f..a9801d03e 100644
--- a/src/cc/gamescc.cpp
+++ b/src/cc/gamescc.cpp
@@ -34,7 +34,7 @@ UniValue games_rawtxresult(UniValue &result,std::string rawtx,int32_t broadcastf
     return(result);
 }
 
-uint64_t games_rngnext(uint64_t initseed)
+uint64_t _games_rngnext(uint64_t initseed)
 {
     uint16_t seeds[4]; int32_t i;
     seeds[0] = initseed;
@@ -48,6 +48,25 @@ uint64_t games_rngnext(uint64_t initseed)
     return(((uint64_t)seeds[3] << 48) | ((uint64_t)seeds[2] << 24) | ((uint64_t)seeds[1] << 16) | seeds[0]);
 }
 
+UniValue games_rngnext(uint64_t txfee,struct CCcontract_info *cp,cJSON *params)
+{
+    UniValue result(UniValue::VOBJ); int32_t n; uint64_t seed;
+    if ( params != 0 && (n= cJSON_GetArraySize(params)) == 1 )
+    {
+        seed = jdouble(jitem(params,0),0);
+        result.push_back(Pair("seed",seed));
+        seed = games_rngnext(seed);
+        result.push_back(Pair("rng",seed));
+        result.push_back(Pair("result","success"));
+    }
+    else
+    {
+        result.push_back(Pair("result","error"));
+        result.push_back(Pair("error","not enough params"));
+    }
+    return(result);
+}
+
 UniValue games_rng(uint64_t txfee,struct CCcontract_info *cp,cJSON *params)
 {
     UniValue result(UniValue::VOBJ); int32_t i,n,playerid=0; uint64_t seed,initseed; bits256 hash;
@@ -75,13 +94,13 @@ UniValue games_rng(uint64_t txfee,struct CCcontract_info *cp,cJSON *params)
             }
         }
         initseed = seed;
-        seed = games_rngnext(initseed);
+        seed = _games_rngnext(initseed);
         result.push_back(Pair("playerid",(int64_t)(playerid - 1)));
-        result.push_back(Pair("initseed",initseed));
-        result.push_back(Pair("seed",seed));
+        result.push_back(Pair("seed",initseed));
+        result.push_back(Pair("rng",seed));
         for (i=0; i<GAMES_MAXRNGS; i++)
-            seed = games_rngnext(seed);
-        result.push_back(Pair("lastseed",seed));
+            seed = _games_rngnext(seed);
+        result.push_back(Pair("lastrng",seed));
         result.push_back(Pair("maxrngs",GAMES_MAXRNGS));
         result.push_back(Pair("result","success"));
     }
diff --git a/src/cc/gamescc.h b/src/cc/gamescc.h
index aebda854f..adb318522 100644
--- a/src/cc/gamescc.h
+++ b/src/cc/gamescc.h
@@ -11,20 +11,20 @@ std::string MYCCLIBNAME = (char *)"gamescc";
 #define MYCCNAME "games"
 
 #define RPC_FUNCS    \
-    { (char *)MYCCNAME, (char *)"rng", (char *)"hash,seed,playerid", 2, 3, '0', EVAL_GAMES }, \
-    { (char *)MYCCNAME, (char *)"func1", (char *)"<no args>", 0, 0, '1', EVAL_GAMES },
+    { (char *)MYCCNAME, (char *)"rng", (char *)"hash,seed,playerid", 2, 3, ' ', EVAL_GAMES }, \
+    { (char *)MYCCNAME, (char *)"rngnext", (char *)"seed", 1, 1, ' ', EVAL_GAMES },
 
 bool games_validate(struct CCcontract_info *cp,int32_t height,Eval *eval,const CTransaction tx);
 UniValue games_rng(uint64_t txfee,struct CCcontract_info *cp,cJSON *params);
-UniValue games_func1(uint64_t txfee,struct CCcontract_info *cp,cJSON *params);
+UniValue games_rngnext(uint64_t txfee,struct CCcontract_info *cp,cJSON *params);
 
 #define CUSTOM_DISPATCH \
 if ( cp->evalcode == EVAL_GAMES ) \
 { \
     if ( strcmp(method,"rng") == 0 ) \
         return(games_rng(txfee,cp,params)); \
-    else if ( strcmp(method,"func1") == 0 ) \
-        return(games_func1(txfee,cp,params)); \
+    else if ( strcmp(method,"rngnext") == 0 ) \
+        return(games_rngnext(txfee,cp,params)); \
     else \
     { \
         result.push_back(Pair("result","error")); \