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Ukendio 2024-07-31 05:01:29 +02:00
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docs/learn/concepts/entities-and-components.md
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@ -23,7 +23,8 @@ Operation | Description
In an ECS, components need to be uniquely identified. In Jecs this is done by making each component is its own unique entity. If a game has a component Position and Velocity, there will be two entities, one for each component. Component entities can be distinguished from "regular" entities as they have a `Component` component. An example: In an ECS, components need to be uniquely identified. In Jecs this is done by making each component is its own unique entity. If a game has a component Position and Velocity, there will be two entities, one for each component. Component entities can be distinguished from "regular" entities as they have a `Component` component. An example:
:::code-group ::: code-group
```luau [luau] ```luau [luau]
local Position = world:component() :: jecs.Entity<Vector3> local Position = world:component() :: jecs.Entity<Vector3>
print(world:has(Position, Jecs.Component)) print(world:has(Position, Jecs.Component))
@ -34,9 +35,12 @@ const Position = world.component<Vector3>();
print(world.has(Position, Jecs.Component)) print(world.has(Position, Jecs.Component))
``` ```
:::
All of the APIs that apply to regular entities also apply to component entities. This means it is possible to contexualize components with logic by adding traits to components All of the APIs that apply to regular entities also apply to component entities. This means it is possible to contexualize components with logic by adding traits to components
:::code-group ::: code-group
```luau [luau] ```luau [luau]
local Networked = world:component() local Networked = world:component()
local Type = world:component() local Type = world:component()
@ -107,3 +111,5 @@ for (const [id, ty, name] of world.query(Type, Name).with(Networked)) {
updatePositions.FireServer(packet) updatePositions.FireServer(packet)
} }
``` ```
:::