Gaming Platform Smart Contract

A decentralized gaming platform built on Stacks blockchain that manages game assets (NFTs), player registration, leaderboard tracking, and reward distribution.

Features

• NFT Game Assets: Mint and transfer unique in-game items
• Player Management: Registration and score tracking
• Leaderboard System: Track player performance
• Reward Distribution: Automated reward calculations based on player scores
• Administrative Controls: Secure admin management system

Contract Components

Game Assets (NFTs)

• Unique identifiers for in-game items
• Metadata storage including:
  • Name (max 50 characters)
  • Description (max 200 characters)
  • Rarity level
  • Power level (0-1000)

Player System

• Registration with entry fee
• Score tracking
• Games played counter
• Total rewards earned
• Leaderboard position

Administrative Features

• Admin whitelist system
• Game configuration management
• Asset minting controls
• Score update authorization

Function Reference

Administrative Functions

add-game-admin

• Adds a new administrator to the whitelist
• Requires existing admin authorization
• Parameters:
  • new-admin: Principal to be added as admin

initialize-game

• Sets up game parameters
• Parameters:
  • entry-fee: Cost to register (1-1000)
  • max-entries: Maximum leaderboard entries (1-500)

Asset Management

mint-game-asset

• Creates new game NFT
• Parameters:
  • name: Asset name
  • description: Asset description
  • rarity: Rarity level
  • power-level: Power rating (0-1000)

transfer-game-asset

• Transfers NFT ownership
• Parameters:
  • token-id: Asset identifier
  • recipient: New owner's principal

Player Management

register-player

• Registers new player
• Requires entry fee payment
• Initializes player statistics

update-player-score

• Updates player's score
• Parameters:
  • player: Player's principal
  • new-score: Updated score (0-10000)

Reward System

distribute-bitcoin-rewards

• Distributes rewards to eligible players
• Automated calculation based on scores
• Minimum score requirement: 100
• Reward formula: score × 10

Error Codes

Code	Description
u1	Not authorized
u2	Invalid game asset
u3	Insufficient funds
u4	Transfer failed
u5	Leaderboard full
u6	Already registered
u7	Invalid reward
u8	Invalid input
u9	Invalid score
u10	Invalid fee
u11	Invalid entries
u12	Player not found

Security Features

Access Control

• Role-based administration
• Secure principal validation
• Transaction authorization checks

Asset Protection

• Ownership verification for transfers
• Safe principal validation
• Input validation for all operations

Financial Safety

• Balance checks for transactions
• Secure reward distribution
• Protected prize pool management

Best Practices

1. Administrative Access

   • Only authorized admins can perform privileged operations
   • Admin additions require existing admin approval

2. Asset Management

   • Verify ownership before transfers
   • Validate all metadata inputs
   • Maintain asset uniqueness

3. Player Operations

   • Validate registration requirements
   • Ensure score updates are authorized
   • Protect player statistics

4. Reward Distribution

   • Verify eligibility before rewards
   • Secure calculation process
   • Safe distribution mechanism

Technical Specifications

• Language: Clarity
• Platform: Stacks Blockchain
• Token Standard: NFT
• Storage: Map-based data structure
• Access Control: Principal-based

Implementation Notes

1. The contract uses map structures for efficient data storage
2. NFT implementation follows standard token patterns
3. Modular design allows for future expansions
4. Built-in safety checks prevent common vulnerabilities
5. Clear separation of administrative and user functions