system

type AttackPlayerCommand struct {
	Target string
	Damage uint32
}

type AttackPlayerSystemState struct {
	cardinal.BaseSystemState
	AttackPlayerCommands    cardinal.WithCommand[AttackPlayerCommand]
	PlayerDeathSystemEvents cardinal.WithSystemEventEmitter[systemevent.PlayerDeath]
	PlayerDeathEvents       cardinal.WithEvent[event.PlayerDeath]
	Players                 PlayerSearch
}

type CallExternalCommand struct {
	Message string
}

type CallExternalSystemState struct {
	cardinal.BaseSystemState
	CallExternalCommands cardinal.WithCommand[CallExternalCommand]
}

type CreatePlayerCommand struct {
	Nickname string `json:"nickname"`
}

type CreatePlayerSystemState struct {
	cardinal.BaseSystemState
	CreatePlayerCommands cardinal.WithCommand[CreatePlayerCommand]
	NewPlayerEvents      cardinal.WithEvent[event.NewPlayer]
	Players              PlayerSearch
}

type ExternalCommand struct {
	Message string
}

type Grave struct {
	Grave cardinal.WithComponent[component.Gravestone]
}

type GraveSearch = cardinal.Exact[Grave]

type GraveyardSystemState struct {
	cardinal.BaseSystemState
	PlayerDeathSystemEvents cardinal.WithSystemEventReceiver[systemevent.PlayerDeath]
	Graves                  GraveSearch // Registers Grave for Create[Grave].
}

type Player struct {
	Tag    cardinal.WithComponent[component.PlayerTag]
	Health cardinal.WithComponent[component.Health]
}

type PlayerSearch = cardinal.Exact[Player]

type PlayerSpawnerSystemState struct {
	cardinal.BaseSystemState
	Players PlayerSearch
}

type RegenSystemState struct {
	cardinal.BaseSystemState
	cardinal.Contains[struct {
		cardinal.WithComponent[component.Health]
	}]
}