Ethereum unity

Now, you might have explored Alchemy API alternatives when searching for your preferred Web3 tech stack. However, while nodes and Web3 API providers are great tools, the real power lies in Web3 backend platforms. As such, Moralis is the premier platform you cannot afford to miss out on. Create your free account now! In fact, many coders still fall into the trap of building directly on top of Ethereum RPC nodes.

Thus, they end up facing all of the limitations of RPC nodes. Then, you can devote all your energy towards creating an attractive Web3 UI and the best possible user experience. As such, the chances of your Unity Web3 game being a success increase automatically.

Hopefully, that will help you decide what your next steps should be. Nonetheless, we also have a step-by-step initial Unity Web3 setup guide waiting for you herein. Why Unity Web3? Because they are built in a centralized manner and are all owned by centralized companies. That means they own your data and your in-game assets.

Furthermore, in some cases, you may have a chance to interact with other game communities if the game belongs to the same brand. But, when Unity Web3 is used, a truly decentralized metaverse can be created. Now, you might be wondering why anyone would want to share information between different gaming worlds in the first place. Well, because it brings some insanely cool options to the table.

For instance, just imagine crossover events. As a result, we could bring characters, features, and other assets from different games together. The future of gaming is clearly about interoperability and decentralization, where users actually own their in-game assets.

With that said, we can all agree that centralized games cannot offer these sorts of crossover collaborations. However, the tech offered by programmable blockchains, such as Ethereum , brings us an ocean of new possibilities. As such, decentralized metaverses or even one giant metaverse suddenly becomes a possibility. Creating Unity Web3 Games In this case, a game that we can create is one of the worlds within the Web3 realm.

As such, all players will be able to connect with their Ethereum-supported Web3 wallets. Furthermore, their information will be automatically replicated through the entire decentralized network see the image above. That way, players can transact with each other and even buy and sell various assets. In turn, the value from in-game assets can be easily carried over into the real world. Nonetheless, such a Unity Web3 game, or should we say a digital world, would be a great place for massive quest events and in-game jobs.

Before you start doubting such possibilities, let us remind you that new incredible technology always disrupts its current industry status. Result; Debug. PollForReceipt transactionHash, 2 ; Debug. CreateLatest ; Debug. Declare our smart contract definition First step is to include our smart contract definition, this can be code generated using the vscode solidity extension or the console code generation tool.

Creating a new EIP20Deployment contract definition we set the constructor parameters and send the transaction. Finally we we create TransactionReceiptPollingRequest to poll for the transaction receipt and retrieve the newly deployed contract address from the transaction receipt.

Log transactionRequest. We then will yield the Query and the query result Result object will provide us the Ouput of the contract already decoded. Log dtoResult. Balance ; Transfer transaction To send a transaction to interact with a smart contract has similar steps to the deployment.

We first create a TransactionSignedUnityRequest and our Function including any parameters, once the transaction is send we poll for the transaction receipt which will confirm the success of the transaction. Once we have yield the request, we can decode all matching events using the Result. DecodeAllEvents, extension method.

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The Ethereum network guarantees that your programs will run as you wrote them, with no possibility of tampering. It also guarantees that the program results will get stored exactly as your program produced them. This is the killer feature that Ethereum offers!

The detail behind how this trust feature works is where Ethereum becomes complex and is outside the scope of this tutorial. However, the basic idea is that it uses techniques from a branch of mathematics called cryptography, along with some clever algorithms. Part of the activity miners do is to validate that interactions with the network follow the Ethereum rules. The amazing result is that there is a network of computers run by strangers with no central authority, yet you can trust the network to run your programs exactly as you coded them with no possibility of tampering!

Fees The final piece to understand is fees. Simple reads of the network are free. This fee must get paid for by whoever or whatever wants the change. Executing a program costs a fee broadly related to how many CPU cycles it requires and how much persistent data storage it changes. The network fees that get given to miners are not paid in dollars. Ether is an integral part of the Ethereum network, and it gets traded for dollars on many online exchanges.

Some Terminology The above explanation avoided using technical terminology. The Ethereum is a decentralised network because it has no central server controlling the network. The method by which the miners agree on what the ouput of programs should be is the consensus mechanism. The network stores all of its data and programs in a blockchain which is a special data structure that prevents tampering. Ether is part of a family of virtual currencies called cryptocurrencies.

Enough theory! Time to get your hands dirty adding the Nethereum library to the demo project. Installing Nethereum Nethereum is an open source. NET library for Ethereum. It allows Unity to communicate with the Ethereum network. Go to the Releases page of the Nethereum GitHub project and find the section titled 2. Download the file named Nethereum. Unzip the zip file, and copy the contents into the newly created folder. Inside an EVM are lots of objects called accounts. Accounts can execute code, transfer Ether, maintain an internal data store and talk to each other.

All accounts have an address, which is a long hexadecimal number uniquely identifying it. All accounts have a private key, which is also a long hexadecimal number. This private key is the password to access that account. By default, the EVM is lifeless. Nothing happens unless someone sends a transaction. A transaction is like a message to an account to do something, like transfer Ether or execute code.

When the message is received, the Ethereum network comes to life and processes that transaction. A long hexadecimal number uniquely identifies transactions. MetaMask works with Chrome, Firefox and Opera. It lets you use the web browser to access the Ethereum network. Unfortunately, there is no MetaMask release for Safari, so if necessary, first install Chrome.

To install MetaMask, follow the steps at the MetaMask site. First, choose the browser extension: Then, add it to Chrome: Next, confirm adding to Chrome: A small fox icon will appear in your browser toolbar; click that icon to start MetaMask: Decline the chance to try the new MetaMask beta: Accept the terms and conditions and privacy notices: MetaMask uses the word DEN to mean your collection of Ethereum accounts. On the next screen, enter a new password and confirm it: If you ever forget the password you just entered, you can enter your seed phrase to restore your accounts.

Click the network name at the top: Choose the Rinkeby network from the list: MetaMask creates your first account for you and shows a balance of zero Ether. If you want to rename the account, hover your mouse over the account name and click edit: Woo hoo! You now have MetaMask set up and an Ethereum account on the Rinkeby network.

Copy your private key sometimes abbreviated to PK from MetaMask by clicking on the triple elipses and choosing Export Private Key: MetaMask asks you to confirm your password. Are you ready to get some Ether into your account?

Testing software with real money is not a good idea. To get some free Ether into your test account you use a faucet by following these steps: Copy your address from MetaMask by clicking on the triple ellipsis and choosing Copy Address to Clipboard just like you did above.

Tweet your address like in this example. You can also make a public Facebook post or a public Google Plus post. Go to the Rinkeby faucet site and paste in the link to the social media post you just made. Now you will see how Unity can read your balance. In the HighScoreController. Numerics; using Nethereum. HexTypes; using Nethereum. SendRequest playerEthereumAccount, Nethereum. FromWei balance, You want the latest, most recent block. The script checks for an error in the call.

The script extracts the balance. The Ethereum network generally records Ether values in a unit called Wei. It takes a billion, billion Wei to make up one Ether, so you need to do a unit conversion to get the Ether value to display. Play the scene. Press the Refresh button and wait a few seconds. The smart contract is written in the language Solidity. Your first step is to create a C wrapper around the Solidity contract to make it easy to interact within your C code.

In your code editor, open the HighScoreContractWrapper. The first comment block is the copyright notice. The second comment block you should uncomment. Save the file. Encoders; using Nethereum. You can see it stores a public array of high scores and exposes a function to receive a new high score value named setTopScore.

Note: Understanding the detail behind the C wrapper script and the smart contract is beyond the scope of this tutorial. Go back to editing HighScoreController. The concept of gas is not covered in this tutorial, but you can think of it as Ether. Save everything, switch to Unity and make sure the project compiles. CreateLatest ; scores. Add scoreContractService. The script sends the request asynchronously, passing in parameters identifying the smart contract method we want to call.

The script checks to see how many top scores there are. The script extracts details for each top score one at a time. The script sorts the score and makes each high score entry a pretty format to display on screen. It prepares a request, sends it and interprets the results.

Save and play the scene. Press space to start playing and try to get a good score — at least enough to get you into the top When your elephant dies, wait a few seconds. Then, press the refresh button and wait a few more seconds. Examining Ethereum High Score Transactions You can see the status of a transaction by using a block explorer. You have now finished the practical part. The next sections wrap up this tutorial, starting with some opinions about the challenges facing Ethereum in games today.

Challenges Facing Ethereum in Games Steve Wozniak, one of the founders of Apple, said recently that Ethereum could be as influential as Apple in the long term. Remember this technology is just starting! Note that we specify we want the balance for the latest Block when doing the request. SendRequest receivingAddress, BlockParameter. FromWei balanceRequest. Result; Debug. PollForReceipt transactionHash, 2 ; Debug. CreateLatest ; Debug. Declare our smart contract definition First step is to include our smart contract definition, this can be code generated using the vscode solidity extension or the console code generation tool.

Creating a new EIP20Deployment contract definition we set the constructor parameters and send the transaction. Finally we we create TransactionReceiptPollingRequest to poll for the transaction receipt and retrieve the newly deployed contract address from the transaction receipt.

Log transactionRequest. We then will yield the Query and the query result Result object will provide us the Ouput of the contract already decoded. Log dtoResult. Balance ; Transfer transaction To send a transaction to interact with a smart contract has similar steps to the deployment.

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The software behind it is open source. Anyone can contribute to the source code, and can download the software and set up a node. Does this mean you have to trust everyone who joins the network to behave nicely and not to tamper with your program code or program results?

The Ethereum network guarantees that your programs will run as you wrote them, with no possibility of tampering. It also guarantees that the program results will get stored exactly as your program produced them. This is the killer feature that Ethereum offers! The detail behind how this trust feature works is where Ethereum becomes complex and is outside the scope of this tutorial.

However, the basic idea is that it uses techniques from a branch of mathematics called cryptography, along with some clever algorithms. Part of the activity miners do is to validate that interactions with the network follow the Ethereum rules. The amazing result is that there is a network of computers run by strangers with no central authority, yet you can trust the network to run your programs exactly as you coded them with no possibility of tampering!

Fees The final piece to understand is fees. Simple reads of the network are free. This fee must get paid for by whoever or whatever wants the change. Executing a program costs a fee broadly related to how many CPU cycles it requires and how much persistent data storage it changes. The network fees that get given to miners are not paid in dollars. Ether is an integral part of the Ethereum network, and it gets traded for dollars on many online exchanges. Some Terminology The above explanation avoided using technical terminology.

The Ethereum is a decentralised network because it has no central server controlling the network. The method by which the miners agree on what the ouput of programs should be is the consensus mechanism. The network stores all of its data and programs in a blockchain which is a special data structure that prevents tampering. Ether is part of a family of virtual currencies called cryptocurrencies. Enough theory! Time to get your hands dirty adding the Nethereum library to the demo project.

Installing Nethereum Nethereum is an open source. NET library for Ethereum. It allows Unity to communicate with the Ethereum network. Go to the Releases page of the Nethereum GitHub project and find the section titled 2. Download the file named Nethereum. Unzip the zip file, and copy the contents into the newly created folder.

Inside an EVM are lots of objects called accounts. Accounts can execute code, transfer Ether, maintain an internal data store and talk to each other. All accounts have an address, which is a long hexadecimal number uniquely identifying it. All accounts have a private key, which is also a long hexadecimal number.

This private key is the password to access that account. By default, the EVM is lifeless. Nothing happens unless someone sends a transaction. A transaction is like a message to an account to do something, like transfer Ether or execute code. When the message is received, the Ethereum network comes to life and processes that transaction.

A long hexadecimal number uniquely identifies transactions. MetaMask works with Chrome, Firefox and Opera. It lets you use the web browser to access the Ethereum network. Unfortunately, there is no MetaMask release for Safari, so if necessary, first install Chrome. To install MetaMask, follow the steps at the MetaMask site. First, choose the browser extension: Then, add it to Chrome: Next, confirm adding to Chrome: A small fox icon will appear in your browser toolbar; click that icon to start MetaMask: Decline the chance to try the new MetaMask beta: Accept the terms and conditions and privacy notices: MetaMask uses the word DEN to mean your collection of Ethereum accounts.

On the next screen, enter a new password and confirm it: If you ever forget the password you just entered, you can enter your seed phrase to restore your accounts. Click the network name at the top: Choose the Rinkeby network from the list: MetaMask creates your first account for you and shows a balance of zero Ether. If you want to rename the account, hover your mouse over the account name and click edit: Woo hoo! You now have MetaMask set up and an Ethereum account on the Rinkeby network.

Copy your private key sometimes abbreviated to PK from MetaMask by clicking on the triple elipses and choosing Export Private Key: MetaMask asks you to confirm your password. Are you ready to get some Ether into your account? Testing software with real money is not a good idea. To get some free Ether into your test account you use a faucet by following these steps: Copy your address from MetaMask by clicking on the triple ellipsis and choosing Copy Address to Clipboard just like you did above.

Tweet your address like in this example. You can also make a public Facebook post or a public Google Plus post. Go to the Rinkeby faucet site and paste in the link to the social media post you just made. Now you will see how Unity can read your balance.

In the HighScoreController. Numerics; using Nethereum. HexTypes; using Nethereum. SendRequest playerEthereumAccount, Nethereum. FromWei balance, You want the latest, most recent block. The script checks for an error in the call.

The script extracts the balance. The Ethereum network generally records Ether values in a unit called Wei. It takes a billion, billion Wei to make up one Ether, so you need to do a unit conversion to get the Ether value to display. Play the scene. Press the Refresh button and wait a few seconds.

The smart contract is written in the language Solidity. Your first step is to create a C wrapper around the Solidity contract to make it easy to interact within your C code. In your code editor, open the HighScoreContractWrapper.

The first comment block is the copyright notice. The second comment block you should uncomment. Save the file. Encoders; using Nethereum. You can see it stores a public array of high scores and exposes a function to receive a new high score value named setTopScore. Note: Understanding the detail behind the C wrapper script and the smart contract is beyond the scope of this tutorial.

Go back to editing HighScoreController. The concept of gas is not covered in this tutorial, but you can think of it as Ether. Save everything, switch to Unity and make sure the project compiles. CreateLatest ; scores. Add scoreContractService.

The script sends the request asynchronously, passing in parameters identifying the smart contract method we want to call. The script checks to see how many top scores there are. The script extracts details for each top score one at a time. The script sorts the score and makes each high score entry a pretty format to display on screen. It prepares a request, sends it and interprets the results.

Save and play the scene. Press space to start playing and try to get a good score — at least enough to get you into the top When your elephant dies, wait a few seconds. Then, press the refresh button and wait a few more seconds. Examining Ethereum High Score Transactions You can see the status of a transaction by using a block explorer.

You have now finished the practical part. The community has built a booming digital economy, bold new ways for creators to earn online, and so much more. It's open to everyone, wherever you are in the world — all you need is the internet. Ethereum's decentralized finance DeFi system never sleeps or discriminates. With just an internet connection, you can send, receive, borrow, earn interest, and even stream funds anywhere in the world.

Explore DeFi The internet of assets Ethereum isn't just for digital money. Anything you can own can be represented, traded and put to use as non-fungible tokens NFTs. You can tokenise your art and get royalties automatically every time it's re-sold.