38 lines
1.2 KiB
Rust
38 lines
1.2 KiB
Rust
use crate::ColorMaterial;
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use bevy_asset::{Assets, Handle};
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use bevy_core::bytes::Byteable;
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use bevy_render::{
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render_resource::{RenderResource, RenderResources},
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texture::Texture,
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};
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pub use legion::prelude::*;
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use glam::Vec2;
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#[repr(C)]
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#[derive(Default, RenderResources, RenderResource)]
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#[render_resources(from_self)]
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pub struct Sprite {
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size: Vec2,
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}
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// SAFE: sprite is repr(C) and only consists of byteables
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unsafe impl Byteable for Sprite {}
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// TODO: port to system fn
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pub fn sprite_system() -> Box<dyn Schedulable> {
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SystemBuilder::new("sprite_system")
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.read_resource::<Assets<ColorMaterial>>()
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.read_resource::<Assets<Texture>>()
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.with_query(<(Write<Sprite>, Read<Handle<ColorMaterial>>)>::query())
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.build(|_, world, (materials, textures), query| {
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for (mut sprite, handle) in query.iter_mut(world) {
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let material = materials.get(&handle).unwrap();
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if let Some(texture_handle) = material.texture {
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if let Some(texture) = textures.get(&texture_handle) {
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sprite.size = texture.size;
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}
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}
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}
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})
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}
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