moria/src/loading.rs

use bevy::{
    prelude::*,
    render::{
        render_resource::{AddressMode, FilterMode, SamplerDescriptor},
        texture::ImageSampler,
    },
};

use crate::AppState;

pub struct LoadedAssets {
    pub floor: Handle<Image>,
}
impl FromWorld for LoadedAssets {
    fn from_world(world: &mut World) -> Self {
        let server = world.get_resource::<AssetServer>().unwrap();

        let floor = server.load("textures/floor.png");
        Self { floor }
    }
}

pub fn loading(
    assets: Res<LoadedAssets>,
    mut textures: ResMut<Assets<Image>>,
    mut state: ResMut<State<AppState>>,
) {
    if let Some(t) = textures.get_mut(&assets.floor) {
        let s = SamplerDescriptor {
            address_mode_u: AddressMode::MirrorRepeat,
            address_mode_v: AddressMode::Repeat,
            address_mode_w: AddressMode::Repeat,
            mipmap_filter: FilterMode::Linear,
            ..default()
        };

        t.sampler_descriptor = ImageSampler::Descriptor(s);

        state.set(AppState::Game).unwrap();
    }
}