This project was created for the Explosion Community challenge, and it goes a bit beyond the initial scope.

Shooting Circles is a simple game example built using only the tiny-ecs library. It's a ECS-kind of implementation, where I have a systems, entities and a world. Systems have a states and external API. Levels are created as a collections and when spawned they will create a new entities.

The initial script is /loader/loader.script, which initializes all libraries and loads the game.collection. The /game/game.script script creates a world, loads systems, and loads a level with level_loader_command. All other logic is handled through the ECS systems, located in the /systems folder.

• All systems are placed in the /systems folder.
  • System: Filters entities by required components and processes them. It usually returns up to three sub-systems: system, system_command. Contains all system logic and events this system handling (in postWrap function).
  • System Command: Describes an external API for the system with the "system_command" component. To spawn a command for the system, call self.world.system_command:method_name(). Awailable from all systems.
• Systems can register components in Decore, so usually the registration placed in system files under system component annotation. Example: transform_system registers transform component with all default values. If they exists here, they will be used as defaults for all new components.

decore.register_component("transform", {
	position_x = 0,
	position_y = 0,
	position_z = 0,
	size_x = 1,
	size_y = 1,
	scale_x = 1,
	scale_y = 1,
	rotation = 0,
})