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No seeds, just sticks. A self custodial embedded account to play onchain games seamlessly

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Controller

Controller is a gaming specific smart contract wallet that enables seamless player onboarding and game interactions.

It supports transaction signing using Passkeys and Session Tokens.

Project structure

The project consists of several subfolders located in the packages directory:

  • account_sdk - a rust sdk for interacting interacting with the controller account contract.
  • account-wasm - a wasm version of the rust account sdk for usage in the browser.
  • contracts - a cairo project containing the controller account contract, signer, and session implementations.
  • keychain - a sandboxed application hosted at https://x.cartridge.gg/ and responsible for sensitive operations, such as signing transactions. When an application requests to sign or execute a transaction, keychain enforces client side authorization logic and displays UI for user approval if necessary.
  • profile - a sandboxed application hosted at https://profile.cartridge.gg/ and responsible for displaying the state of Controller account, such as token balances, activities, and achievement.
  • controller sdk. Controller implements the account interfaces required by starknet.js. Underneath, the implementation communicates with an embedded sandboxed keychain iframe.

Development

Frontend

Install pnpm via corepack:

corepack enable pnpm

Install dependencies:

pnpm i

Run Controller with examples:

pnpm dev

This command builds all workspace dependencies first and start these servers:

The simplest way to then develop with your cartridge account is to port it over from the production keychain:

window.cartridge.importAccount("EXPORTED ACCOUNT");

Contracts

Install cainome

cargo install --git https://github.com/cartridge-gg/cainome --features="build-binary"

Compiling the cairo code

To build rust you first have to compile cairo. Run

make

in the root directory.

Commiting changes

The compiled account is stored in the git repository in the crates/account_sdk/artifacts/ folder. To make sure that the tests are run against the most reacent version of the code run make in the root repository. The make command should also be run before commiting any changes to ensure a valid state of the compiled code.

Running the tests

Note, that to run the tests you first have to compile (to sierra and casm) the contract in the controller folder.

Starknet Foundry tests:

snforge test -p controller

Scarb tests:

scarb test -p webauthn_*

After the contract is compiled run the tests using cargo:

cargo test

The scarb builds the contract and saves the compiled code in the controller/target folder. The tests then fetch (at compile time) the comipled code and deploy it to the local network. Note that obviously the contract needs to be recompiled for any changes to be applied in the compiled code.

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No seeds, just sticks. A self custodial embedded account to play onchain games seamlessly

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