Stop users from transfering coins or cards before x games were played

[patrickwieth]

since we give new users airdrop etc. it should not be possible to transfer the credits, bpf and cards before 50 games were played, 10 games or so must be won...

[patrickwieth]

this should be deactivated atm

[lxgr-linux]

it should not be possible to transfer the credits, bpf

As of my knowledge now, this won't be possible, without manipulating the bank module it self, which may be only possible by maintaining our own fork of such module.

cards

This may be fairly easy

[patrickwieth]

maybe we can do this with feegrant:
https://docs.cosmos.network/main/modules/feegrant/01_concepts.html

[patrickwieth]

I think the best way might be:

User creates wallet
sends msg to faucet, but faucet does not send coins but rather does a createuser tx (faucet has captcha)
createuser no longer mints bpf (in the testnet it does) but only credits
the credits are within the cardchain module and cannot be transferred to others
credits from the cardchain module can be transferred to the bank module, but only after a "this user is fair enough" tx has been sent by a server enabled acc

[patrickwieth]

For this we thought about
feegrant and vesting module

Feegrant can only be a partial solution, if we somehow hold back the rewards and then use feegrant to still allow stuff to happen, a bit twisted and complicated...

Vesting module can be a good solution to funnel all rewards into the vesting, it has exactly the functionality we want, but the problem is vesting works over time and cannot be ended by some other actions from external modules, which is what we need...