Skip to main content
In Cardinal, the main.go file is used as the entry point for your game shard implementation. This is where you will initialize your world and register your component, message, query, and system to it.

​
Example

A typical main.go file will look like this:
main.go
package main

import (
	"github.com/argus-labs/monorepo/pkg/cardinal"
	"github.com/argus-labs/monorepo/pkg/cardinal/examples/demo-game/system"
)

func main() {
	world := cardinal.NewWorld()

	// Example of using a hook. This hook runs before the main update phase.
	// There are also other hooks:
	// - Init (runs only once, at tick 0)
	// - PreUpdate (runs before the main update phase)
	// - Update (runs during the main update phase)
	// - PostUpdate (runs after the main update phase)
	cardinal.RegisterSystem(world, system.PlayerSetUpdater, cardinal.WithHook(cardinal.PreUpdate))

	cardinal.RegisterSystem(world, system.PlayerSpawnSystem)
	cardinal.RegisterSystem(world, system.MovePlayerSystem)
	cardinal.RegisterSystem(world, system.PlayerLeaveSystem)
	cardinal.RegisterSystem(world, system.OnlineStatusUpdater)

	world.StartGame()
}
⌘I