EverCrawl

Monorepo for the game client, server, schema definitions and assets.

The game is available live at http://game.jan-prochazka.eu/.

Controls

• A/D: Move left/right
• Space: Jump
• W/S: Climb ladders
• X: Drop from ladder
• S: Drop from platform
• F: Use portal

The game heavily utilizes the ECS paradigm (through the use of μECS) and currently consists only of basic rendering, networking and physics.

• Networking
  • WebSockets are the underlying transport protocol
  • Data is serialized to a custom binary format (further described in packetc).
  • Entity state is only sent if it's been updated
• Physics
  • AABB collision
  • Slopes (fixed angles)
  • One-way platforms
  • Ladders
• Rendering
  • Plain WebGL, no frameworks
  • Primarily batched
  • Animated sprites
  • Map tiles, also optionally animated

Running locally

Ensure Node.js 15+ is installed.

Due to the dependency on uWebSockets.js, and the author's unwillingess to support NPM, yarn is required to install the required dependencies.

> yarn

Run the following two commands in separate shells:

> yarn dev:client

> yarn dev:server