From 6c848b21752579bfa23781cfee3af307be8b5631 Mon Sep 17 00:00:00 2001
From: Rene <36115705+rene78@users.noreply.github.com>
Date: Sat, 9 Nov 2019 00:48:00 +0100
Subject: [PATCH] Small updates
---
contracts/HeadsOrTails.sol | 5 +----
dist/main.js | 2 +-
dist/main.js.map | 2 +-
index.html | 6 ++++--
main.css | 3 +++
src/main.js | 33 ++++++++++++++++++++++-----------
6 files changed, 32 insertions(+), 19 deletions(-)
create mode 100644 main.css
diff --git a/contracts/HeadsOrTails.sol b/contracts/HeadsOrTails.sol
index a0c3e91..19984c6 100644
--- a/contracts/HeadsOrTails.sol
+++ b/contracts/HeadsOrTails.sol
@@ -1,5 +1,5 @@
// Version of Solidity compiler this program was written for
-pragma solidity ^0.5.0;
+pragma solidity ^0.5.8;
// Heads or tails game contract
contract HeadsOrTails {
@@ -46,9 +46,6 @@ contract HeadsOrTails {
won = true;
}
-// EMIT für "won = false" gibt immer "null" zurück. Rausfinden warum!
-// block.timestamp vor deploy rausschmeissen!
-
emit GameResult(won);
lastPlayedGames.push(Game(msg.sender, msg.value, guess, won, address(this).balance));
return won; //Return value can only be used by other functions, but not within web3.js (as of 2019)
diff --git a/dist/main.js b/dist/main.js
index df09d82..75a32f0 100644
--- a/dist/main.js
+++ b/dist/main.js
@@ -1,2 +1,2 @@
-!function(e){var t={};function n(i){if(t[i])return t[i].exports;var a=t[i]={i:i,l:!1,exports:{}};return e[i].call(a.exports,a,a.exports,n),a.l=!0,a.exports}n.m=e,n.c=t,n.d=function(e,t,i){n.o(e,t)||Object.defineProperty(e,t,{enumerable:!0,get:i})},n.r=function(e){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(e,"__esModule",{value:!0})},n.t=function(e,t){if(1&t&&(e=n(e)),8&t)return e;if(4&t&&"object"==typeof e&&e&&e.__esModule)return e;var i=Object.create(null);if(n.r(i),Object.defineProperty(i,"default",{enumerable:!0,value:e}),2&t&&"string"!=typeof e)for(var a in e)n.d(i,a,function(t){return e[t]}.bind(null,a));return i},n.n=function(e){var t=e&&e.__esModule?function(){return e.default}:function(){return e};return n.d(t,"a",t),t},n.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)},n.p="",n(n.s=1)}([function(e){e.exports=JSON.parse('{"contractName":"HeadsOrTails","abi":[{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"anonymous":false,"inputs":[{"indexed":false,"name":"blabla","type":"bool"}],"name":"GameResult","type":"event"},{"constant":false,"inputs":[{"name":"guess","type":"uint8"}],"name":"lottery","outputs":[{"name":"","type":"bool"}],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[],"name":"getGameCount","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"index","type":"uint256"}],"name":"getGameEntry","outputs":[{"name":"addr","type":"address"},{"name":"amountBet","type":"uint256"},{"name":"guess","type":"uint8"},{"name":"winner","type":"bool"},{"name":"ethInJackpot","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"destroy","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"amount","type":"uint256"}],"name":"withdraw","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"}],"metadata":"{\\"compiler\\":{\\"version\\":\\"0.5.8+commit.23d335f2\\"},\\"language\\":\\"Solidity\\",\\"output\\":{\\"abi\\":[{\\"constant\\":true,\\"inputs\\":[],\\"name\\":\\"name\\",\\"outputs\\":[{\\"name\\":\\"\\",\\"type\\":\\"string\\"}],\\"payable\\":false,\\"stateMutability\\":\\"view\\",\\"type\\":\\"function\\"},{\\"constant\\":false,\\"inputs\\":[{\\"name\\":\\"amount\\",\\"type\\":\\"uint256\\"}],\\"name\\":\\"withdraw\\",\\"outputs\\":[],\\"payable\\":false,\\"stateMutability\\":\\"nonpayable\\",\\"type\\":\\"function\\"},{\\"constant\\":true,\\"inputs\\":[{\\"name\\":\\"index\\",\\"type\\":\\"uint256\\"}],\\"name\\":\\"getGameEntry\\",\\"outputs\\":[{\\"name\\":\\"addr\\",\\"type\\":\\"address\\"},{\\"name\\":\\"amountBet\\",\\"type\\":\\"uint256\\"},{\\"name\\":\\"guess\\",\\"type\\":\\"uint8\\"},{\\"name\\":\\"winner\\",\\"type\\":\\"bool\\"},{\\"name\\":\\"ethInJackpot\\",\\"type\\":\\"uint256\\"}],\\"payable\\":false,\\"stateMutability\\":\\"view\\",\\"type\\":\\"function\\"},{\\"constant\\":false,\\"inputs\\":[],\\"name\\":\\"destroy\\",\\"outputs\\":[],\\"payable\\":false,\\"stateMutability\\":\\"nonpayable\\",\\"type\\":\\"function\\"},{\\"constant\\":false,\\"inputs\\":[{\\"name\\":\\"guess\\",\\"type\\":\\"uint8\\"}],\\"name\\":\\"lottery\\",\\"outputs\\":[{\\"name\\":\\"\\",\\"type\\":\\"bool\\"}],\\"payable\\":true,\\"stateMutability\\":\\"payable\\",\\"type\\":\\"function\\"},{\\"constant\\":true,\\"inputs\\":[],\\"name\\":\\"getGameCount\\",\\"outputs\\":[{\\"name\\":\\"\\",\\"type\\":\\"uint256\\"}],\\"payable\\":false,\\"stateMutability\\":\\"view\\",\\"type\\":\\"function\\"},{\\"inputs\\":[],\\"payable\\":false,\\"stateMutability\\":\\"nonpayable\\",\\"type\\":\\"constructor\\"},{\\"payable\\":true,\\"stateMutability\\":\\"payable\\",\\"type\\":\\"fallback\\"},{\\"anonymous\\":false,\\"inputs\\":[{\\"indexed\\":false,\\"name\\":\\"blabla\\",\\"type\\":\\"bool\\"}],\\"name\\":\\"GameResult\\",\\"type\\":\\"event\\"}],\\"devdoc\\":{\\"methods\\":{}},\\"userdoc\\":{\\"methods\\":{}}},\\"settings\\":{\\"compilationTarget\\":{\\"/C/Users/renek/Documents/Programmieren/Heads or Tails/contracts/HeadsOrTails.sol\\":\\"HeadsOrTails\\"},\\"evmVersion\\":\\"petersburg\\",\\"libraries\\":{},\\"optimizer\\":{\\"enabled\\":false,\\"runs\\":200},\\"remappings\\":[]},\\"sources\\":{\\"/C/Users/renek/Documents/Programmieren/Heads or 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Version of Solidity compiler this program was written for\\r\\npragma solidity ^0.5.0;\\r\\n\\r\\n// Heads or tails game contract\\r\\ncontract HeadsOrTails {\\r\\n address payable owner;\\r\\n string public name;\\r\\n\\r\\n struct Game {\\r\\n address addr;\\r\\n uint amountBet;\\r\\n uint8 guess;\\r\\n bool winner;\\r\\n uint ethInJackpot;\\r\\n }\\r\\n\\r\\n Game[] lastPlayedGames;\\r\\n\\r\\n //Log game result in order to display it on frontend\\r\\n event GameResult(bool blabla);\\r\\n\\r\\n // Contract constructor run only on contract creation. Set owner.\\r\\n constructor() public {\\r\\n owner = msg.sender;\\r\\n name = \\"Heads or Tails dApp\\";\\r\\n }\\r\\n\\r\\n //add this modifier to functions, which should only be accessible by the owner\\r\\n modifier onlyOwner {\\r\\n require(msg.sender == owner, \\"This function can only be launched by the owner\\");\\r\\n _;\\r\\n }\\r\\n\\r\\n //Play the game!\\r\\n function lottery(uint8 guess) public payable returns(bool){\\r\\n require(guess == 0 || guess == 1, \\"Variable \'guess\' should be either 0 or 1\\");\\r\\n require(msg.value > 0, \\"Bet more than 0\\");\\r\\n require(msg.value <= address(this).balance - msg.value, \\"You cannot bet more than what is available in the jackpot\\");\\r\\n //address(this).balance is increased by msg.value even before code is executed. Thus \\"address(this).balance-msg.value\\"\\r\\n //Create a random number. Use the mining difficulty & the player\'s address, hash it, convert this hex to int, divide by modulo 2 which results in either 0 or 1 and return as uint8\\r\\n uint8 result = uint8(uint256(keccak256(abi.encodePacked(block.difficulty, msg.sender, block.timestamp)))%2);\\r\\n bool won = false;\\r\\n if (guess == result) {\\r\\n //Won!\\r\\n msg.sender.transfer(msg.value * 2);\\r\\n won = true;\\r\\n }\\r\\n emit GameResult(won);\\r\\n lastPlayedGames.push(Game(msg.sender, msg.value, guess, won, address(this).balance));\\r\\n return won; //Return value can only be used by other functions, but not within web3.js (as of 2019)\\r\\n }\\r\\n\\r\\n //Get amount of games played so far\\r\\n function getGameCount() public view returns(uint) {\\r\\n return lastPlayedGames.length;\\r\\n }\\r\\n\\r\\n //Get stats about a certain played game, e.g. address of player, amount bet, won or lost, and ETH in the jackpot at this point in time\\r\\n function getGameEntry(uint index) public view returns(address addr, uint amountBet, uint8 guess, bool winner, uint ethInJackpot) {\\r\\n return (\\r\\n lastPlayedGames[index].addr,\\r\\n lastPlayedGames[index].amountBet,\\r\\n lastPlayedGames[index].guess,\\r\\n lastPlayedGames[index].winner,\\r\\n lastPlayedGames[index].ethInJackpot\\r\\n );\\r\\n }\\r\\n\\r\\n // Contract destructor (Creator of contract can also destroy it and receives remaining ether of contract address).\\r\\n //Advantage compared to \\"withdraw\\": SELFDESTRUCT opcode uses negative gas because the operation frees up space on\\r\\n //the blockchain by clearing all of the contract\'s data\\r\\n function destroy() external onlyOwner {\\r\\n selfdestruct(owner);\\r\\n }\\r\\n\\r\\n //Withdraw money from contract\\r\\n function withdraw(uint amount) external onlyOwner {\\r\\n require(amount < address(this).balance, \\"You cannot withdraw more than what is available in the contract\\");\\r\\n owner.transfer(amount);\\r\\n }\\r\\n\\r\\n // Accept any incoming 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Version of Solidity compiler this program was written for\\r\\npragma solidity ^0.5.0;\\r\\n\\r\\n// Heads or tails game contract\\r\\ncontract HeadsOrTails {\\r\\n address payable owner;\\r\\n string public name;\\r\\n\\r\\n struct Game {\\r\\n address addr;\\r\\n uint amountBet;\\r\\n uint8 guess;\\r\\n bool winner;\\r\\n uint ethInJackpot;\\r\\n }\\r\\n\\r\\n Game[] lastPlayedGames;\\r\\n\\r\\n //Log game result in order to display it on frontend\\r\\n event GameResult(bool won);\\r\\n\\r\\n // Contract constructor run only on contract creation. Set owner.\\r\\n constructor() public {\\r\\n owner = msg.sender;\\r\\n name = \\"Heads or Tails dApp\\";\\r\\n }\\r\\n\\r\\n //add this modifier to functions, which should only be accessible by the owner\\r\\n modifier onlyOwner {\\r\\n require(msg.sender == owner, \\"This function can only be launched by the owner\\");\\r\\n _;\\r\\n }\\r\\n\\r\\n //Play the game!\\r\\n function lottery(uint8 guess) public payable returns(bool){\\r\\n require(guess == 0 || guess == 1, \\"Variable \'guess\' should be either 0 or 1\\");\\r\\n require(msg.value > 0, \\"Bet more than 0\\");\\r\\n require(msg.value <= address(this).balance - msg.value, \\"You cannot bet more than what is available in the jackpot\\");\\r\\n //address(this).balance is increased by msg.value even before code is executed. Thus \\"address(this).balance-msg.value\\"\\r\\n //Create a random number. 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1);\n","//import Web3 from \"web3\";//Bundle size of web3.js is huge (>1MB)! So once development is done only load the required modules, e.g. web3-eth\r\nimport HeadsOrTails from '../build/contracts/HeadsOrTails.json';\r\n\r\nwindow.addEventListener('load', loadWeb3());\r\nwindow.addEventListener('load', getEthFiatRate());\r\ndocument.getElementById(\"form\").addEventListener(\"submit\", (event) => {\r\n event.preventDefault();\r\n play();\r\n});\r\ndocument.getElementById(\"amount-to-bet\").addEventListener(\"input\", calcFiat); //Calculate value in USD during input\r\n\r\n//Global variables\r\nlet headsOrTails;\r\nlet account;\r\nlet ethUsd;\r\n\r\nasync function loadWeb3() {\r\n // Modern dapp browsers...\r\n if (window.ethereum) {\r\n window.web3 = new Web3(ethereum);\r\n try {\r\n // Request account access if needed\r\n await ethereum.enable();\r\n console.log(\"User has a MODERN dapp browser!\");\r\n // Acccounts now exposed\r\n loadBlockchainData();\r\n } catch (error) {\r\n console.log(\"User denied access!\");\r\n }\r\n }\r\n // Legacy dapp browsers...\r\n else if (window.web3) {\r\n window.web3 = new Web3(web3.currentProvider);\r\n console.log(\"User has a LEGACY dapp browser!\");\r\n loadBlockchainData();\r\n // Acccounts always exposed\r\n //web3.eth.sendTransaction({/* ... */});\r\n }\r\n // Non-dapp browsers...\r\n else {\r\n //Load blockchain data (jackpot, last games) via Infura\r\n window.alert('Non-Ethereum browser detected. You should consider trying MetaMask!');\r\n }\r\n}\r\n\r\nasync function loadBlockchainData() {\r\n // Load account\r\n // const web3 = window.web3; //Was used at demo dapp. Not sure why.\r\n const networkId = await web3.eth.net.getId();\r\n console.log(networkId);\r\n const networkData = HeadsOrTails.networks[networkId];\r\n console.log(networkData);\r\n if (networkData) {\r\n console.log(\"HeadsOrTails contract is deployed to this network.\");\r\n headsOrTails = new web3.eth.Contract(HeadsOrTails.abi, networkData.address);\r\n console.log(headsOrTails);\r\n //Load variable from contract (just a test)\r\n const dappName = await headsOrTails.methods.name().call();\r\n console.log(dappName);\r\n //Populate table of last played games & Display amount of ETH in jackpot\r\n getLatestGameData();\r\n getContractBalance();\r\n //Show contract address\r\n document.querySelector(\".contract-address\").innerHTML = '' + networkData.address + '';\r\n } else {\r\n window.alert('Marketplace contract not deployed to detected network.')\r\n }\r\n}\r\n\r\nasync function play() {\r\n //Find out which radio button is selected and how much money is bet.\r\n const radios = document.getElementsByName(\"ht-selector\");\r\n const amountToBetEther = document.querySelector(\"#amount-to-bet\").value;\r\n let headsOrTailsSelection = document.querySelector(\":checked\").value;\r\n\r\n console.log(\"0 or 1: \" + headsOrTailsSelection);\r\n console.log(\"Amount to bet (ETH): \" + amountToBetEther);\r\n\r\n const amountToBetWei = window.web3.utils.toWei(amountToBetEther, 'Ether');\r\n console.log(\"Amount to bet (Wei): \" + amountToBetWei);\r\n const accounts = await web3.eth.getAccounts();\r\n account = accounts[0];\r\n // console.log(account);\r\n\r\n //Once the event \"GameResult\" is emitted from the smart contract, display game result.\r\n headsOrTails.once('GameResult',\r\n function (error, event) {\r\n if (event.returnValues[0] === true) window.alert(\"You won!\");\r\n else window.alert(\"You lost!\");\r\n // console.log(event.returnValues[0]);\r\n }\r\n );\r\n toggleBlur();\r\n await headsOrTails.methods.lottery(headsOrTailsSelection).send({ from: account, value: amountToBetWei });\r\n toggleBlur();\r\n\r\n getLatestGameData();\r\n getContractBalance();\r\n}\r\n\r\nasync function getContractBalance() {\r\n const currentBalanceEth = await web3.eth.getBalance(headsOrTails._address) / 1e18;\r\n console.log(\"Contract balance (ETH): \" + currentBalanceEth);\r\n document.querySelector(\".eth-in-jackpot\").innerHTML = currentBalanceEth + \" ETH (~\" + (currentBalanceEth * ethUsd).toFixed(2) + \"$)\";\r\n\r\n //Set the max bet value to contract balance (i.e money in jackpot)\r\n document.querySelector(\"#amount-to-bet\").max = currentBalanceEth;\r\n}\r\n\r\nasync function getLatestGameData() {\r\n const gameCount = await headsOrTails.methods.getGameCount().call();\r\n // console.log(gameCount);\r\n //Purge table before populating\r\n document.querySelector(\"#table-body\").innerHTML = \"\";\r\n //Populate table\r\n let t = document.querySelector('#productrow');\r\n let td = t.content.querySelectorAll(\"td\");\r\n const maxEntriesToDisplay = 3;\r\n for (let i = gameCount - 1; i >= 0; i--) {\r\n const gameEntry = await headsOrTails.methods.getGameEntry(i).call();\r\n let result = gameEntry.winner ? 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\ No newline at end of file
diff --git a/index.html b/index.html
index 2a33da6..cf04ee9 100644
--- a/index.html
+++ b/index.html
@@ -50,10 +50,12 @@