@johns
Made a demo version using Coinbase's Sub Accounts https://sub-accounts-demo.basedchess.xyz/
It only works with their smart wallet. Invite the only player's main account, not sub account to a game. All the message signing for chess moves is done in the background.
A few problems to work out:
- Refreshing the web page causes the wallet & sub account to disconnect, requires 2 pop-ups to reconnect
- Mint GameWin NFT unavailable. I haven't implement the contract calls yet as I don't see a wagmi compatible version of Sub Account support out yet (but it looks like it's coming soon https://x.com/Montana_Wong/status/1907455174416711913)
- Verifying message signatures is turned off. I don't see a method for this yet
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