Add component to entity using world possible?

[Schr3da]

Hey,

sorry but is there a way to add/insert a component without using Commands?
Basically what I would like to do is to add an component to an existing entity by using the world

`use bevy_ecs::prelude::*;

use crate::prelude::*;

pub fn set_display_cells(rows: i32, columns: i32, world: &mut World) {
let mut query = world.query::<(Entity, With)>();

for (entity, _) in query.iter(world) {
    // how to add component to entity?

    // world.insert(entity, component) - does not existV
    // world.entity(entity).insert(SomeComponent) - does not work
}

for row in 0..rows {
    for column in 0..columns {
        world
            .spawn(DisplayCell {})
            .insert(Position { x: row, y: column });
    }
}

}

`

any help would be great.

regards
Schr3da

[james7132]

If you know an entity already exists, you can use World::entity_mut to get an EntityMut for that entity.

world
    .entity_mut(entity)
    .insert(Position { x: row, y: column });

[Schr3da]

in bevy_ecs 0.9.0 it says it is unsafe + expected 0 args. are you refering to another becy_ecs version?

[hymm]

you're looking at entities_mut, not entity_mut

[Schr3da]

Thanks worked