mattdesl

L2 Games and On-Boarding Flow

This is some loose thinking about how to securely bridge assets from L1 to a L2 for a blockchain game. See Dark Forest game as a reference.

The user experience flow should work like this:

1. To create an account, the user is prompted with a unique private "serial key" and must copy it safely.
2. The user can use this key to initialize a game account along with a payment of, say, $5 USD.
3. Then the user can open the game interface, paste their serial key, and they will see their account has been pre-allocated with $5 USD worth tokens. These tokens can be used for gas fees (to cover the first ~100-1000 transactions depending on L2 network) or to pay for gameplay elements such as expansions and user-created content.
4. When the user is finished playing, they can withdraw any remaining tokens from the game back to their L1 address—including any new assets or verifiable achievements they might have gained through their gameplay.

mattdesl

//
// Copyright 2017 Christian Reitwiessner
// Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
// The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTW

mattdesl

// SPDX-License-Identifier: GPL-3.0
/*
    Copyright 2021 0KIMS association.

    This file is generated with [snarkJS](https://github.com/iden3/snarkjs).

    snarkJS is a free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

mattdesl

on game NFTs

Minecraft Marketplace is an online store that lets users purchase game skins, texture packs, mods, mini games, and other user-created game content for Minecraft. To buy content on this market, users must first exchange their fiat dollars to virtual tokens known as Minecoins. Minecoins are non-refundable and non-transferable, and can be purchased through App Stores or Microsoft account.

Monetizing user-generated content is one of the more profitable areas of Minecraft's business model, generating more than $500 million in revenue in the years since it has launched. Exactly how much of the Minecoin and Marketplace revenue is split with content creators is not publicly known, but—after accounting for 30% take-rates on App Stores—the remainder is [assumed to be in the range of 50% shared with content creators](https://www.destructoid.com/minecraft-is-getting-it

mattdesl

{"proof":{"A":["17449230182385608549739937383075881546483765808691909124706281312692807714804","19899319621970761685248799018755740044715297739760834732535773987823693622231","1"],"B":["3672931078908235154236352901061877838095222059104321938148414375361026933","1678882455299646345749140912743451764360216737358906299258107907557158080393","1"],"C":["21226093540817603091525712047325089368958730693399215898483401301746680187351","2302554353719115267226435859169251436739458510074692117957124764639569741149","1"],"Z":["13128167650963345188520076485466668087078868679048603756847956219283879827863","10323622276841347627771102600171798616336409375373259253189208575095627971049","1"],"T1":["16900134199583638356254786687471812705845076998067903251872115809420699440450","12196389057585380925419772802366356513130525489553233295746087810658119301704","1"],"T2":["8797753442072019184044196683905941214727596019333410653665716859074660633418","621800000210342783114919327800158735742471663856178144919309536773368911962","1"],"

mattdesl

import smartpy as sp


class FA2(sp.Contract):
    """This contract tries to simplify the FA2 contract template example in
    smartpy.io v0.8.4
    
    It has been modified to include basic "social graph" functionality by @mattdesl

    The contract follows the FA2 standard definition:

mattdesl

import smartpy as sp

# Reference:
# https://github.com/hen-community/objkt-swap/blob/jagracar/v3-prototype/smart-py/objkt_swap_v3.py


##
## ## Meta-Programming Configuration
##
## The `FA2_config` class holds the meta-programming configuration.

mattdesl

import smartpy as sp

# Reference:
# https://github.com/hen-community/objkt-swap/blob/jagracar/v3-prototype/smart-py/objkt_swap_v3.py


##
## ## Meta-Programming Configuration
##
## The `FA2_config` class holds the meta-programming configuration.

mattdesl

If you're able to set up taquito locally, you can use the wallet.js code below to programmatically place pixels on my Spectrum Color board (hangzhou testnet).

Testnet contract:

KT1MeQytVramwMXJRyksTemX2B7qF4MJoRSG

Example:

(async () => {

mattdesl

import smartpy as sp

class SpectrumColors(sp.Contract):
    def __init__(self):
        self.init(
            # fixed dimensions of the board
            columns = 16,
            rows = 16,
            # limit to the total number of colors possible
            max_colors = 12,