🐍 SnakeVortex - Multiplayer Snake Arena

Language / Язык

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About

I've created SnakeVortex, a multiplayer snake game that brings the classic gameplay to the web with real-time multiplayer capabilities. This is a fully-featured snake arena where players compete against each other and intelligent AI bots in a dynamic environment. This is my first time working with AI bots and on such a game in general, so don't hit me too hard)

Security Updates

1. Rate limiter protection Added a hard limit for stored rate limiter entries. This helps prevent the rate limiter itself from growing too large in memory.

2. Safer Origin validation Origin checks now use urlsplit and exact netloc comparison instead of startswith. This prevents unsafe lookalike origins from passing validation.

3. New security limits Added new configuration limits: MAX_RATE_LIMITER_ENTRIES = 1000 and MAX_WS_CONNECTIONS = 200.

4. WebSocket connection limit WebSocket connections are now rejected before being added to connected_clients if the connection limit has already been reached.

5. Correct player removal state When a player is removed, their snapshot is immediately marked with alive = False. This keeps the player state accurate for the rest of the game logic.

6. Safer kill logic kill_player no longer drops food for players who are already dead. This prevents duplicate or incorrect rewards from being created.

7. Security regression tests Added regression tests covering all discovered security issues. These tests help make sure the same vulnerabilities do not return in future updates.

Features

I've implemented a comprehensive set of features to make the game engaging and competitive:

Core Gameplay

• Real-time Multiplayer: Up to 20 players can join simultaneously
• Smooth Movement: Mouse-controlled snake movement with acceleration
• Live Leaderboard: Real-time ranking system showing top players
• Spectator Mode: Watch other players after elimination
• Unique Names: Automatic name generation ensures no duplicate nicknames

Power-ups & Abilities

I've designed 5 distinct power-ups that add strategic depth to the gameplay:

🟢 Speed Boost

• Effect: Increases movement speed by 50% for 5 seconds
• Visual: Golden particles orbit around the snake's head
• Strategy: Perfect for escaping dangerous situations or chasing down food

🔵 Shield Protection

• Effect: Grants temporary invincibility against collisions for 8 seconds
• Visual: Blue pulsing energy shield surrounds the snake
• Strategy: Allows aggressive play through enemy territory

🟠 Magnet Power

• Effect: Automatically attracts nearby food for 6 seconds
• Visual: Orange energy rings pulse around the snake
• Strategy: Efficient food collection without precise movement

🟣 Ghost Mode

• Effect: Ability to pass through other snakes for 4 seconds
• Visual: Snake becomes semi-transparent with flickering effect
• Strategy: Escape from enclosed spaces or surprise attacks

🟡 Double Score

• Effect: All food consumed gives double points for 7 seconds
• Visual: Yellow sparkles and stars dance around the snake
• Strategy: Maximize scoring during high-food density periods

AI & Bots

• Smart AI Opponents: 8 intelligent bots with advanced pathfinding
• Dynamic Behavior: Bots adapt their strategies based on game state
• Collision Avoidance: Sophisticated algorithms to prevent bot collisions
• Creative Names: Bots use realistic names like "Alex", "SwiftHunter", "Phoenix"

Security & Performance

• Rate Limiting: Protection against spam and DDoS attacks
• Error Handling: Custom 404 and 429 error pages
• Connection Monitoring: Automatic reconnection on network issues

Game Mechanics

Scoring System

• Small Food: 3-7 points based on size
• Power Food: 20 points + special ability
• Double Score: Multiplies all food points by 2
• Death Food: When snakes die, they drop food equal to their segments

Power-up Spawn

• Power-ups appear randomly across the map
• Each power-up has a unique color and pulsing animation
• Multiple power-ups can be active simultaneously
• Effects stack and have independent timers

Bot Intelligence

• Bots prioritize power-ups over regular food
• Advanced pathfinding avoids collisions
• Spatial awareness for efficient food collection
• Adaptive behavior based on game state