Prep 0.10: Integrate raindrops

Raindrops texture was not added as part of the crate.
Ideally it shouldn't, but it's the easiest thing to do
right now.

Signed-off-by: Torstein Grindvik <torstein.grindvik@nordicsemi.no>

src/post_processing/raindrops.rs

@@ -8,6 +8,7 @@ use bevy::render::{
  AddressMode, BindingResource, Sampler, SamplerBindingType, SamplerDescriptor,
  TextureSampleType, TextureViewDimension,
  },
+ texture::{CompressedImageFormats, ImageType},
  RenderSet,
 };
 pub(crate) use bevy::{
@@ -34,6 +35,8 @@ use super::{Order, PostProcessingPhaseItem};
 
 pub(crate) const RAINDROPS_SHADER_HANDLE: HandleUntyped =
  HandleUntyped::weak_from_u64(Shader::TYPE_UUID, 3481202994982538867);
+const RAINDROPS_IMAGE_HANDLE: HandleUntyped =
+ HandleUntyped::weak_from_u64(Image::TYPE_UUID, 10600833861652934799);
 
 #[derive(Resource, ExtractResource, Deref, DerefMut, Clone)]
 struct RaindropsTextureHandle(Handle<Image>);
@@ -114,14 +117,28 @@ impl bevy::prelude::Plugin for Plugin {
  Shader::from_wgsl
  );
 
- let asset_server = app.world.resource::<AssetServer>();
- let texture_handle: Handle<Image> = asset_server.load("textures/raindrops.tga");
+ let mut assets = app.world.resource_mut::<Assets<_>>();
+
+ let image = Image::from_buffer(
+ include_bytes!(concat!(
+ env!("CARGO_MANIFEST_DIR"),
+ "/assets/textures/",
+ "raindrops.tga"
+ )),
+ ImageType::Extension("tga"),
+ CompressedImageFormats::NONE,
+ false,
+ )
+ .expect("Should load raindrops successfully");
+ assets.set_untracked(RAINDROPS_IMAGE_HANDLE, image);
 
  // This puts the uniform into the render world.
  app.add_plugin(ExtractComponentPlugin::<Raindrops>::default())
  .add_plugin(UniformComponentPlugin::<Raindrops>::default())
  .add_plugin(ExtractResourcePlugin::<RaindropsTextureHandle>::default())
- .insert_resource(RaindropsTextureHandle(texture_handle));
+ .insert_resource(RaindropsTextureHandle(
+ RAINDROPS_IMAGE_HANDLE.clone_weak().typed(),
+ ));
 
  super::render_app(app)
  .add_system(