123 lines
4.3 KiB
C++
123 lines
4.3 KiB
C++
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CScript games_opret(uint8_t funcid,CPubKey pk)
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{
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CScript opret; uint8_t evalcode = EVAL_GAMES;
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opret << OP_RETURN << E_MARSHAL(ss << evalcode << funcid << pk);
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return(opret);
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}
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uint8_t games_opretdecode(CPubKey &pk,CScript scriptPubKey)
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{
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std::vector<uint8_t> vopret; uint8_t e,f;
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GetOpReturnData(scriptPubKey,vopret);
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if ( vopret.size() > 2 && E_UNMARSHAL(vopret,ss >> e; ss >> f; ss >> pk) != 0 && e == EVAL_GAMES )
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{
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return(f);
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}
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return(0);
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}
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UniValue games_rawtxresult(UniValue &result,std::string rawtx,int32_t broadcastflag)
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{
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CTransaction tx;
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if ( rawtx.size() > 0 )
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{
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result.push_back(Pair("hex",rawtx));
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if ( DecodeHexTx(tx,rawtx) != 0 )
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{
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if ( broadcastflag != 0 && myAddtomempool(tx) != 0 )
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RelayTransaction(tx);
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result.push_back(Pair("txid",tx.GetHash().ToString()));
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result.push_back(Pair("result","success"));
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} else result.push_back(Pair("error","decode hex"));
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} else result.push_back(Pair("error","couldnt finalize CCtx"));
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return(result);
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}
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UniValue games_rng(uint64_t txfee,struct CCcontract_info *cp,cJSON *params)
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{
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UniValue result(UniValue::VOBJ); int32_t i,invertflag=0,n,playerid=0; uint16_t seeds[4]; uint64_t seed,initseed; bits256 hash;
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if ( params != 0 && ((n= cJSON_GetArraySize(params)) == 2 || n == 3) )
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{
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hash = jbits256(jitem(params,0),0);
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seed = jdouble(jitem(params,1),0);
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if ( n == 3 )
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{
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playerid = juint(jitem(params,2),0);
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if ( playerid >= 0x100 )
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{
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result.push_back(Pair("result","error"));
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result.push_back(Pair("error","playerid too big"));
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return(result);
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}
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}
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if ( seed == 0 )
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{
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playerid++;
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if ( playerid == 0x100 )
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{
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invertflag = 1;
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playerid--;
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}
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for (i=0; i<8; i++)
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{
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if ( ((1 << i) & playerid) != 0 )
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seed ^= hash.uints[i];
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if ( invertflag != 0 )
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seed ^= (uint64_t)-1;
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}
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}
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initseed = seed;
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for (i=0; i<4; i++)
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{
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seeds[i] = (seed >> (i*16));
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seeds[i] = (seeds[i]*11109 + 13849);
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}
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seed = ((uint64_t)seeds[3] << 48) | ((uint64_t)seeds[2] << 24) | ((uint64_t)seeds[1] << 16) | seeds[0];
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result.push_back(Pair("playerid",(int64_t)(playerid - 1 + invertflag)));
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result.push_back(Pair("initseed",initseed));
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result.push_back(Pair("seed",seed));
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result.push_back(Pair("result","success"));
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}
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else
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{
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result.push_back(Pair("result","error"));
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result.push_back(Pair("error","not enough params"));
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}
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return(result);
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}
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// send yourself 1 coin to your CC address using normal utxo from your -pubkey
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UniValue games_func1(uint64_t txfee,struct CCcontract_info *cp,cJSON *params)
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{
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CMutableTransaction mtx = CreateNewContextualCMutableTransaction(Params().GetConsensus(), komodo_nextheight()); std::string rawtx;
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UniValue result(UniValue::VOBJ); CPubKey mypk; int64_t amount = COIN; int32_t broadcastflag=0;
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if ( txfee == 0 )
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txfee = GAMES_TXFEE;
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mypk = pubkey2pk(Mypubkey());
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if ( AddNormalinputs(mtx,mypk,COIN+txfee,64) >= COIN+txfee ) // add utxo to mtx
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{
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mtx.vout.push_back(MakeCC1vout(cp->evalcode,amount,mypk)); // make vout0
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// add opreturn, change is automatically added and tx is properly signed
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rawtx = FinalizeCCTx(0,cp,mtx,mypk,txfee,games_opret('1',mypk));
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return(games_rawtxresult(result,rawtx,broadcastflag));
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}
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return(result);
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}
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bool games_validate(struct CCcontract_info *cp,int32_t height,Eval *eval,const CTransaction tx)
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{
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char expectedaddress[64]; CPubKey pk;
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if ( tx.vout.size() != 2 ) // make sure the tx only has 2 outputs
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return eval->Invalid("invalid number of vouts");
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else if ( games_opretdecode(pk,tx.vout[1].scriptPubKey) != '1' ) // verify has opreturn
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return eval->Invalid("invalid opreturn");
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GetCCaddress(cp,expectedaddress,pk);
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if ( IsCClibvout(cp,tx,0,expectedaddress) == COIN ) // make sure amount and destination matches
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return(true);
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else return eval->Invalid("invalid vout0 amount");
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}
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