Smart Contract Details

[{"name":"SC_ACTION","datatype":"U","value":1},{"name":"SC_CODE","datatype":"S","value":"/* Lottery Smart Contract Example in DVM-BASIC.  \nThis lottery smart contract will give lottery wins on every second try in following default contract.\n\tMake depost transaction to this SCID to play lottery. \n\tCheck https://github.com/deroproject/derohe/blob/main/guide/examples/lottery_sc_guide.md\n*/\n\n\n\n        Function Lottery() Uint64\n\t10  dim deposit_count,winner as Uint64\n\t20  LET deposit_count =  LOAD(\"deposit_count\")+1\n\t25  IF DEROVALUE() == 0 THEN GOTO 110  // if deposit amount is 0, simply return\n\t30  STORE(\"depositor_address\" + (deposit_count-1), SIGNER()) // store address for later on payment\n\t40  STORE(\"deposit_total\", LOAD(\"deposit_total\") + DEROVALUE() )\n\t50  STORE(\"deposit_count\",deposit_count)\n\t60  IF LOAD(\"lotteryeveryXdeposit\") \u003e deposit_count THEN GOTO 110 // we will wait till X players join in\n        // we are here means all players have joined in, roll the DICE, \n\t70  LET winner  = RANDOM() % deposit_count // we have a winner\n\t80  SEND_DERO_TO_ADDRESS(LOAD(\"depositor_address\" + winner) , LOAD(\"lotterygiveback\")*LOAD(\"deposit_total\")/10000)\n        // Re-Initialize for another round\n        90  STORE(\"deposit_count\", 0)   //  initial players\n\t100 STORE(\"deposit_total\", 0)   //  total deposit of all players\n\t110  RETURN 0\n\tEnd Function\n\n\t\n\t// This function is used to initialize parameters during install time\n\t// Smart contract authors should hardcode their intended address for contract ownership, then add a check within the Initialize() or InitializePrivate() functions to ensure that the caller is the true owner.\n\tFunction Initialize() Uint64\n\t10  IF SIGNER() == address_raw(\"dero1qy4fxqwqrwmsny5uuypwyh5rhhdzglr3ylx77sglhzr5klmyqya36qgvmh5k2\") THEN GOTO 30 //Exit unless smart contract owner.\n\t20  RETURN 0 // exit \n\t30 version(\"1.2.3\")\n\t40  STORE(\"owner\", SIGNER())   // store in DB  [\"owner\"] = address\n\t50  STORE(\"lotteryeveryXdeposit\", 2)   // lottery will reward every X deposits\n        // How much will lottery giveback in 1/10000 parts, granularity .01 %\n\t60  STORE(\"lotterygiveback\", 9900)   // lottery will give reward 99% of deposits, 1 % is accumulated for owner to withdraw\n\t70  STORE(\"deposit_count\", 0)   //  initial players\n\t80  STORE(\"deposit_total\", 0)   //  total deposit of all players\n\t90 RETURN 0 \n\tEnd Function \t\n\t\n\t\n        // Function to tune lottery parameters\n\tFunction TuneLotteryParameters(input Uint64, lotteryeveryXdeposit Uint64, lotterygiveback Uint64) Uint64\n\t10  dim key,stored_owner as String\n\t20  dim value_uint64 as Uint64\n\t30  IF LOAD(\"owner\") == SIGNER() THEN GOTO 100  // check whether owner is real owner\n\t40  RETURN 1\n\t\n\t100  STORE(\"lotteryeveryXdeposit\", lotteryeveryXdeposit)   // lottery will reward every X deposits\n\t130  STORE(\"lotterygiveback\", value_uint64)   // how much will lottery giveback in 1/10000 parts, granularity .01 %\n\t140  RETURN 0 // return success\n\tEnd Function\n\t\n\n\t\n\t// This function is used to change owner \n\t// owner is an string form of address \n\tFunction TransferOwnership(newowner String) Uint64 \n\t10  IF LOAD(\"owner\") == SIGNER() THEN GOTO 30 \n\t20  RETURN 1\n\t30  STORE(\"tmpowner\",ADDRESS_RAW(newowner))\n\t40  RETURN 0\n\tEnd Function\n\t\n\t// Until the new owner claims ownership, existing owner remains owner\n        Function ClaimOwnership() Uint64 \n\t10  IF LOAD(\"tmpowner\") == SIGNER() THEN GOTO 30 \n\t20  RETURN 1\n\t30  STORE(\"owner\",SIGNER()) // ownership claim successful\n\t40  RETURN 0\n\tEnd Function\n\t\n\t// If signer is owner, withdraw any requested funds\n\t// If everthing is okay, they will be showing in signers wallet\n        Function Withdraw( amount Uint64) Uint64 \n\t10  IF LOAD(\"owner\") == SIGNER() THEN GOTO 30 \n\t20  RETURN 1\n\t30  SEND_DERO_TO_ADDRESS(SIGNER(),amount)\n\t40  RETURN 0\n\tEnd Function\n\t\n\t// If signer is owner, provide him rights to update code anytime\n        // make sure update is always available to SC\n        Function UpdateCode( code String) Uint64 \n\t10  IF LOAD(\"owner\") == SIGNER() THEN GOTO 30 \n\t20  RETURN 1\n\t30  UPDATE_SC_CODE(code)\n\t40  RETURN 0\n\tEnd Function"}]