ERC1155 Game Assets
To support robust web3 gaming ecosystems, PyVax natively transpiles the standard _mint syntax into fully compliant ERC1155 smart contracts on Avalanche. This allows a single deployed contract to manage infinite permutations of fungible (gold, wood) and non-fungible (unique swords, armor) assets.
Defining the Inventory Set
We avoid complex mapping structures by explicitly declaring game-logic constraints inside an Avalanche smart contract.
python
from pyvax import Contract
class GameAssets(Contract):
# Dictionaries persist equipped states for players
equipped: dict = {}
@action
def mint_materials(self, player: address, material_id: int, quantity: int):
"""Mints fungible resources (e.g. 1000 Wood or 50 Iron)"""
# The _mint compiler function natively builds ERC1155 payloads
self._mint(player, material_id, quantity)
@action
def mint_unique_weapon(self, player: address, weapon_id: int):
"""Mints a non-fungible weapon (Quantity is strictly 1)"""
self._mint(player, weapon_id, 1)
@action
def equip_item(self, player: address, item_id: int):
"""Records active equipment on the blockchain state"""
self.equipped[player] = item_id
Abstracting Game Logic via Agents
A major hurdle in onchain gaming is requiring human players to sign transactions via Metamask every single time they pick up a piece of gold or equip a new shield.
By binding AgentWallets to player sessions, game studios can execute PyVax contracts completely invisibly in the background.
python
from pyvax import AgentWallet
def game_loop(player_session_wallet: AgentWallet):
# A monster drops an item ID 405 (Ex: Iron Sword)
dropped_item = 405
# The session wallet instantly signs and captures the asset onchain!
# Zero metamask popups.
player_session_wallet.execute(
target="0xGameAssets...",
method="mint_unique_weapon",
args=[player_session_wallet.address, dropped_item]
)