EthereumC2Plugin

Here are two plugins to integrate the Ethereum Blockchain in your Construct 2 game.

Some details

They both use the Web3 Javascript API version 0.2, so it works with all compatible browsers, like Metamask or Mist. Like in Web3, there are 2 ways to call most functions: synchronous or asynchronous (although some nodes like Metamask don't support synchronous calls).

To call a function synchronously:

- Just use the corresponding Expression or Action

To call a function asynchronously:

- Add the corresponding action, with a chosen callbackID parameter
- Add an OnCallback condition with the same callbackID
- Use Ethereum(or the EthereumContract).CurrentCallbackResponse to get the function's response

The plugins:

Ethereum

Contains most functions in the Web3 API (let me know if some useful ones are missing). Go to the page linked higher for a complete list and descriptions.

Ethereum Contract

Facilitates communication with a smart contract. The contract's ABI and address are properties of the plugin, so an instance is created on the plugin's creation. The main actions are:

- Call : Calls a constant function of the contract
- Send : Sends a transaction to the contract

Examples

There is a simple example project in the github project. You can also look at this real life project that uses the plugin.

Possible Improvements

- Multiple contract addresses for the different networks
- Implement CallSuchFunctionAndWait actions to use asynchronous functions like if they were synchronous (in the meantime, you can use WaitForSignal to do that)

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