@edgefund/core

{ "contractName": "EdgeFund", "abi": [ { "inputs": [], "payable": false, "stateMutability": "nonpayable", "type": "constructor" }, { "payable": false, "stateMutability": "nonpayable", "type": "fallback" }, { "constant": false, "inputs": [ { "name": "BetSize", "type": "uint256" }, { "name": "PayoutOdds", "type": "uint256" }, { "name": "WinOdds", "type": "uint256" } ], "name": "PlaceBetWithWinOdds", "outputs": [ { "name": "", "type": "bool" } ], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": true, "inputs": [], "name": "ResolveBets", "outputs": [ { "name": "", "type": "bool" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "Temp", "outputs": [ { "name": "", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "getBankrollBalance", "outputs": [ { "name": "", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": false, "inputs": [ { "name": "isHeads", "type": "bool" } ], "name": "PlaceBet", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": true, "inputs": [], "name": "ResolveBet", "outputs": [ { "name": "", "type": "string" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": false, "inputs": [ { "name": "val", "type": "uint256" } ], "name": "ForceNewBlock", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" } ], "bytecode": 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"source": "pragma solidity ^0.4.23;\n\ncontract EdgeFund{\n\n address _betAddress;\n bool _isHeads;\n uint _betBlock;\n uint _dummy;\n\n uint Multiplier = 10 ** 8;\n uint FractionalKelly = 1 * Multiplier;\n\n //temporary\n uint Bankroll;\n\n struct Bet{\n uint BetSize;\n uint PayoutOdds;\n uint WinOdds;\n\n uint PlacedBlockNumber;\n uint PlayerBetIndex;\n address Player;\n\n bool Resolved;\n }\n\n mapping(address => Bet[]) playerBets;\n\n function PlaceBetWithWinOdds (\n uint BetSize,\n uint PayoutOdds,\n uint WinOdds)\n public\n returns(bool)\n {\n // Bet b;\n //b.Betsize = BetSize;\n Bet[] storage existingBets = playerBets[msg.sender];\n uint numBets = existingBets.length;\n existingBets.push(\n Bet(\n BetSize,\n PayoutOdds,\n WinOdds,\n block.number,\n numBets++,\n msg.sender,\n false\n ));\n\n return false;\n }\n\n function ResolveBets() public view returns(bool)\n {\n Bet[] storage existingBets = playerBets[msg.sender];\n\n for (uint i = 0; i < existingBets.length; i++){\n if (!existingBets[i].Resolved)\n {\n /*\n * Steps to resolve a bet\n * check that the current block is > the bet-placed block\n * check that the amount being paid out on this block is < block reward\n * get the blockhash of the resolving block\n * get the result of the bet for the given resolution-block\n */\n\n require(block.number > existingBets[i].PlacedBlockNumber);\n\n bytes32 ResolutionblockHash = blockhash(existingBets[i].PlacedBlockNumber + 1);\n bytes32 HashedValue = keccak256(\n abi.encodePacked(existingBets[i].Player, ResolutionblockHash)\n );\n uint Result = uint8(uint256(HashedValue) % existingBets[i].WinOdds);\n\n Result == 0 ? true : false;\n }\n }\n return false;\n }\n\n constructor() public\n {\n /**\n * This will be replaced with an ERC20 token. Used to allow some intial\n * testing with the EdgeFund functions\n */\n Bankroll = 10000000 * Multiplier;\n }\n\n /**\n * The default function is called when Ether is sent to this address\n * Need to decide what to do in this scenario. Place a bet? Return funds?\n * Currently favour placing a 'coin toss' bet here.\n */\n function() public{\n }\n\n function Temp() public view returns(uint){\n uint BetSize = 100 * Multiplier;\n uint PayoutOdds = 36 * Multiplier;\n\n return Multiplier *\n (PayoutOdds - Multiplier) *\n (BetSize * Multiplier + FractionalKelly * Bankroll) /\n (FractionalKelly * PayoutOdds * Bankroll);\n }\n\n struct UserInteraction{\n uint betSize;\n uint PayoutOdds;\n uint WinOdds;\n }\n\n function getBankrollBalance() public view returns (uint)\n {\n return Bankroll;\n }\n\n function CalculateEdge(\n uint probability,\n uint decimalPayoutOdds\n )\n private\n pure\n returns(uint)\n {\n return probability * decimalPayoutOdds - 1;\n }\n\n // EdgeFund.deployed().then(function(instance){return instance.PlaceBet(true);});\n function PlaceBet(bool isHeads) public{\n _betAddress = msg.sender;\n _isHeads = isHeads;\n _betBlock = block.number;\n }\n\n // EdgeFund.deployed().then(function(instance){return instance.ResolveBet();});\n function ResolveBet() public view returns(string) {\n bytes32 blockHash = blockhash(_betBlock+1);\n require(blockHash != 0);\n\n bytes32 HashedValue = keccak256(abi.encodePacked(_betAddress, blockHash));\n uint CoinTossResult = uint8(uint256(HashedValue) % 2);//heads = 1, tails = 0\n\n if (CoinTossResult == 1 && _isHeads){\n return \"You Win!\";\n\n } else {\n return \"You Lose\";\n\n }\n }\n\n // For testing with Ganache\n // EdgeFund.deployed().then(function(instance){return instance.ForceNewBlock(123);});\n function ForceNewBlock(uint val) public {\n _dummy = val;\n }\n}\n", "sourcePath": "/Users/garethoates/Developer/Blockchain/EdgeFund/edgefund-core/contracts/EdgeFund.sol", "ast": { "absolutePath": "/Users/garethoates/Developer/Blockchain/EdgeFund/edgefund-core/contracts/EdgeFund.sol", "exportedSymbols": { "EdgeFund": [ 674 ] }, "id": 675, "nodeType": "SourceUnit", "nodes": [ { "id": 329, "literals": [ "solidity", "^", "0.4", ".23" ], "nodeType": "PragmaDirective", "src": "0:24:2" }, { "baseContracts": [], "contractDependencies": [], "contractKind": "contract", "documentation": null, "fullyImplemented": true, "id": 674, "linearizedBaseContracts": [ 674 ], "name": "EdgeFund", "nodeType": "ContractDefinition", "nodes": [ { "constant": false, "id": 331, "name": "_betAddress", "nodeType": "VariableDeclaration", "scope": 674, "src": "50:19:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 330, "name": "address", "nodeType": "ElementaryTypeName", "src": "50:7:2", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 333, "name": "_isHeads", "nodeType": "VariableDeclaration", "scope": 674, "src": "75:13:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 332, "name": "bool", "nodeType": "ElementaryTypeName", "src": "75:4:2", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 335, "name": "_betBlock", "nodeType": "VariableDeclaration", "scope": 674, "src": "94:14:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 334, "name": "uint", "nodeType": "ElementaryTypeName", "src": "94:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 337, "name": "_dummy", "nodeType": "VariableDeclaration", "scope": 674, "src": "114:11:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 336, "name": "uint", "nodeType": "ElementaryTypeName", "src": "114:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 342, "name": "Multiplier", "nodeType": "VariableDeclaration", "scope": 674, "src": "132:25:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 338, "name": "uint", "nodeType": "ElementaryTypeName", "src": "132:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_rational_100000000_by_1", "typeString": "int_const 100000000" }, "id": 341, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "hexValue": "3130", "id": 339, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "150:2:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_10_by_1", "typeString": "int_const 10" }, "value": "10" }, "nodeType": "BinaryOperation", "operator": "**", "rightExpression": { "argumentTypes": null, "hexValue": "38", "id": 340, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "156:1:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_8_by_1", "typeString": "int_const 8" }, "value": "8" }, "src": "150:7:2", "typeDescriptions": { "typeIdentifier": "t_rational_100000000_by_1", "typeString": "int_const 100000000" } }, "visibility": "internal" }, { "constant": false, "id": 347, "name": "FractionalKelly", "nodeType": "VariableDeclaration", "scope": 674, "src": "163:37:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 343, "name": "uint", "nodeType": "ElementaryTypeName", "src": "163:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 346, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "hexValue": "31", "id": 344, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "186:1:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" }, "nodeType": "BinaryOperation", "operator": "*", "rightExpression": { "argumentTypes": null, "id": 345, "name": "Multiplier", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 342, "src": "190:10:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "186:14:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" }, { "constant": false, "id": 349, "name": "Bankroll", "nodeType": "VariableDeclaration", "scope": 674, "src": "223:13:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 348, "name": "uint", "nodeType": "ElementaryTypeName", "src": "223:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "canonicalName": "EdgeFund.Bet", "id": 364, "members": [ { "constant": false, "id": 351, "name": "BetSize", "nodeType": "VariableDeclaration", "scope": 364, "src": "263:12:2", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 350, "name": "uint", "nodeType": "ElementaryTypeName", "src": "263:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 353, "name": "PayoutOdds", "nodeType": "VariableDeclaration", "scope": 364, "src": "285:15:2", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 352, "name": "uint", "nodeType": "ElementaryTypeName", "src": "285:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 355, "name": "WinOdds", "nodeType": "VariableDeclaration", "scope": 364, "src": "310:12:2", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 354, "name": "uint", "nodeType": "ElementaryTypeName", "src": "310:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 357, "name": "PlacedBlockNumber", "nodeType": "VariableDeclaration", "scope": 364, "src": "333:22:2", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 356, "name": "uint", "nodeType": "ElementaryTypeName", "src": "333:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 359, "name": "PlayerBetIndex", "nodeType": "VariableDeclaration", "scope": 364, "src": "365:19:2", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 358, "name": "uint", "nodeType": "ElementaryTypeName", "src": "365:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 361, "name": "Player", "nodeType": "VariableDeclaration", "scope": 364, "src": "394:14:2", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 360, "name": "address", "nodeType": "ElementaryTypeName", "src": "394:7:2", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 363, "name": "Resolved", "nodeType": "VariableDeclaration", "scope": 364, "src": "419:13:2", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 362, "name": "bool", "nodeType": "ElementaryTypeName", "src": "419:4:2", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "name": "Bet", "nodeType": "StructDefinition", "scope": 674, "src": "243:196:2", "visibility": "public" }, { "constant": false, "id": 369, "name": "playerBets", "nodeType": "VariableDeclaration", "scope": 674, "src": "445:36:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_struct$_Bet_$364_storage_$dyn_storage_$", "typeString": "mapping(address => struct EdgeFund.Bet[])" }, "typeName": { "id": 368, "keyType": { "id": 365, "name": "address", "nodeType": "ElementaryTypeName", "src": "453:7:2", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Mapping", "src": "445:25:2", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_struct$_Bet_$364_storage_$dyn_storage_$", "typeString": "mapping(address => struct EdgeFund.Bet[])" }, "valueType": { "baseType": { "contractScope": null, "id": 366, "name": "Bet", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 364, "src": "464:3:2", "typeDescriptions": { "typeIdentifier": "t_struct$_Bet_$364_storage_ptr", "typeString": "struct EdgeFund.Bet" } }, "id": 367, "length": null, "nodeType": "ArrayTypeName", "src": "464:5:2", "typeDescriptions": { "typeIdentifier": "t_array$_t_struct$_Bet_$364_storage_$dyn_storage_ptr", "typeString": "struct EdgeFund.Bet[]" } } }, "value": null, "visibility": "internal" }, { "body": { "id": 413, "nodeType": "Block", "src": "629:428:2", "statements": [ { "assignments": [ 383 ], "declarations": [ { "constant": false, "id": 383, "name": "existingBets", "nodeType": "VariableDeclaration", "scope": 414, "src": "687:26:2", "stateVariable": false, "storageLocation": "storage", "typeDescriptions": { "typeIdentifier": "t_array$_t_struct$_Bet_$364_storage_$dyn_storage_ptr", "typeString": "struct EdgeFund.Bet[]" }, "typeName": { "baseType": { "contractScope": null, "id": 381, "name": "Bet", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 364, "src": "687:3:2", "typeDescriptions": { "typeIdentifier": "t_struct$_Bet_$364_storage_ptr", "typeString": "struct EdgeFund.Bet" } }, "id": 382, "length": null, "nodeType": "ArrayTypeName", "src": "687:5:2", "typeDescriptions": { "typeIdentifier": "t_array$_t_struct$_Bet_$364_storage_$dyn_storage_ptr", "typeString": "struct EdgeFund.Bet[]" } }, "value": null, "visibility": "internal" } ], "id": 388, "initialValue": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 384, "name": "playerBets", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 369, "src": "716:10:2", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_struct$_Bet_$364_storage_$dyn_storage_$", "typeString": "mapping(address => struct EdgeFund.Bet storage ref[] storage ref)" } }, "id": 387, "indexExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 385, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 689, "src": "727:3:2", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 386, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "727:10:2", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "716:22:2", "typeDescriptions": { "typeIdentifier": "t_array$_t_struct$_Bet_$364_storage_$dyn_storage", "typeString": "struct EdgeFund.Bet storage ref[] storage ref" } }, "nodeType": "VariableDeclarationStatement", "src": "687:51:2" }, { "assignments": [ 390 ], "declarations": [ { "constant": false, "id": 390, "name": "numBets", "nodeType": "VariableDeclaration", "scope": 414, "src": "748:12:2", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 389, "name": "uint", "nodeType": "ElementaryTypeName", "src": "748:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 393, "initialValue": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 391, "name": "existingBets", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 383, "src": "763:12:2", "typeDescriptions": { "typeIdentifier": "t_array$_t_struct$_Bet_$364_storage_$dyn_storage_ptr", "typeString": "struct EdgeFund.Bet storage ref[] storage pointer" } }, "id": 392, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "763:19:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "748:34:2" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 398, "name": "BetSize", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 371, "src": "844:7:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 399, "name": "PayoutOdds", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 373, "src": "869:10:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 400, "name": "WinOdds", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 375, "src": "897:7:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 401, "name": "block", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 679, "src": "922:5:2", "typeDescriptions": { "typeIdentifier": "t_magic_block", "typeString": "block" } }, "id": 402, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "number", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "922:12:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 404, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "UnaryOperation", "operator": "++", "prefix": false, "src": "952:9:2", "subExpression": { "argumentTypes": null, "id": 403, "name": "numBets", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 390, "src": "952:7:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": 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