game

type Configuration struct {
	Database DatabaseConfiguration
	FPS      int32
	Window   WindowConfiguration
}

type DatabaseConfiguration struct {
	DSN string
}

type Library struct {
	World
}

type WindowConfiguration struct {
	Width      int32
	Height     int32
	Title      string
	Fullscreen bool
}

type World interface {
	Update(name string, dt float32)

	System(name string) system.System

	// Component will return a component interface for the given entity and
	// component name. The caller will have to use type assertions to extract
	// the real value from the result.
	Component(entity entity.Entity, name string) component.Component

	// Entity will return the signature for the given entity ID.
	Entity(entity entity.Entity) *bitset.BitSet

	// Entities is a total count of entities living in the current world space.
	Entities() int

	// Destroy will remove the entity and all of it's dedicated component/system
	// resources from the world, freeing up room for another (new) entity.
	Destroy(entity entity.Entity)

	// RegisterComponent will reserve a new component ID with the given name.
	RegisterComponent(name string)

	// RegisterComponent will reserve a new component ID with the given name.
	RegisterSystem(system system.System, components ...string)

	// CreateEntity will add a new living entity to the world and return it.
	CreateEntity() entity.Entity

	// SignEntity will set the given entity's signature for the given component names.
	SignEntity(entity entity.Entity, components ...string)

	// AttachComponent will assign the given component name and data to the entity.
	AttachComponent(entity entity.Entity, component component.Component)
}