fix(resources): load_string is no longer build.rs dependent

crates/comet_resources/src/graphic_resource_manager.rs

@@ -1,19 +1,17 @@
-use std::{
-	collections::HashMap, path::Path
-};
+use std::{collections::HashMap, path::Path};
 
-use wgpu::{naga, Device, FilterMode, Queue, ShaderModule, TextureFormat, TextureUsages};
-use wgpu::naga::ShaderStage;
-use comet_log::info;
-use crate::{font, texture, Texture};
 use crate::font::Font;
 use crate::texture_atlas::{TextureAtlas, TextureRegion};
+use crate::{font, texture, Texture};
+use comet_log::info;
+use wgpu::naga::ShaderStage;
+use wgpu::{naga, Device, FilterMode, Queue, ShaderModule, TextureFormat, TextureUsages};
 
 pub struct GraphicResourceManager {
     texture_atlas: TextureAtlas,
     fonts: Vec<Font>,
     data_files: HashMap<String, String>,
-	shaders: HashMap<String, ShaderModule>
+    shaders: HashMap<String, ShaderModule>,
 }
 
 impl GraphicResourceManager {
@@ -22,7 +20,7 @@ impl GraphicResourceManager {
             texture_atlas: TextureAtlas::empty(),
             fonts: Vec::new(),
             data_files: HashMap::new(),
-			shaders: HashMap::new()
+            shaders: HashMap::new(),
         }
     }
 
@@ -43,7 +41,10 @@ impl GraphicResourceManager {
     }
 
     pub fn get_glyph(&self, font: &str, ch: char) -> Option<&TextureRegion> {
-		self.fonts.iter().find(|f| f.name() == font).and_then(|f| f.get_glyph(ch))
+        self.fonts
+            .iter()
+            .find(|f| f.name() == font)
+            .and_then(|f| f.get_glyph(ch))
     }
 
     pub fn set_texture_atlas(&mut self, texture_atlas: TextureAtlas) {
@@ -59,10 +60,13 @@ impl GraphicResourceManager {
     }
 
     pub fn load_string(&self, file_name: &str) -> anyhow::Result<String> {
-		let path = Path::new(std::env::var("OUT_DIR")?.as_str())
-			.join("res")
-			.join(file_name);
-		let txt = std::fs::read_to_string(path)?;
+        let base_path = std::env::var("OUT_DIR")
+            .map(|p| Path::new(&p).to_path_buf())
+            .unwrap_or_else(|_| Path::new(".").to_path_buf());
+
+        let path = base_path.join(file_name);
+        let txt = std::fs::read_to_string(&path)
+            .map_err(|e| anyhow::anyhow!("Failed to load {}: {}", path.display(), e))?;
 
         Ok(txt)
     }
@@ -93,32 +97,28 @@ impl GraphicResourceManager {
         &mut self,
         shader_stage: Option<ShaderStage>,
         file_name: &str,
-		device: &Device
+        device: &Device,
     ) -> anyhow::Result<()> {
         let shader_source = self.load_string(file_name)?;
 
         let module = match file_name.split('.').last() {
-			Some ("wgsl") => {
-				device.create_shader_module(wgpu::ShaderModuleDescriptor {
-					label: Some(file_name.clone()),
-					source: wgpu::ShaderSource::Wgsl(shader_source.into())
-				})
-			},
+            Some("wgsl") => device.create_shader_module(wgpu::ShaderModuleDescriptor {
+                label: Some(file_name),
+                source: wgpu::ShaderSource::Wgsl(shader_source.into()),
+            }),
             Some("glsl") => {
                 if let Some(stage) = shader_stage {
                     device.create_shader_module(wgpu::ShaderModuleDescriptor {
-						label: Some(file_name.clone()),
+                        label: Some(file_name),
                         source: wgpu::ShaderSource::Glsl {
                             shader: shader_source.into(),
                             stage,
-							defines: naga::FastHashMap::default()
-						}
+                            defines: naga::FastHashMap::default(),
+                        },
                     })
+                } else {
+                    return Err(anyhow::anyhow!("GLSL shader needs a stage"));
                 }
-				else {
-					return Err(anyhow::anyhow!("GLSL shader needs a stage"))
-				}
-
             }
             _ => return Err(anyhow::anyhow!("Unsupported shader type")),
         };

crates/comet_resources/src/texture.rs

@@ -1,6 +1,5 @@
 use anyhow::*;
 use image::{DynamicImage, GenericImageView, RgbaImage};
-use wgpu::{Device, Queue};
 
 #[derive(Debug)]
 pub struct Texture {
@@ -53,7 +52,7 @@ impl Texture {
             texture,
             view,
             sampler,
-			size, // NEW!
+            size,
         }
     }
 
@@ -183,19 +182,12 @@ impl Texture {
         }
     }
 
-	pub fn to_image(
-		&self,
-		device: &wgpu::Device,
-		queue: &wgpu::Queue,
-	) -> Result<DynamicImage> {
-		// Size of the texture
+    pub fn to_image(&self, device: &wgpu::Device, queue: &wgpu::Queue) -> Result<DynamicImage> {
         let width = self.size.width;
         let height = self.size.height;
 
-		// Calculate the size of the texture in bytes
         let texture_size_bytes = (4 * width * height) as wgpu::BufferAddress;
 
-		// Create a buffer for reading the texture data back from the GPU
         let buffer = device.create_buffer(&wgpu::BufferDescriptor {
             label: Some("Texture Readback Buffer"),
             size: texture_size_bytes,
@@ -203,12 +195,10 @@ impl Texture {
             mapped_at_creation: false,
         });
 
-		// Create a command encoder to copy the texture data to the buffer
         let mut encoder = device.create_command_encoder(&wgpu::CommandEncoderDescriptor {
             label: Some("Texture to Buffer Encoder"),
         });
 
-		// Define the copy operation from the texture to the buffer
         encoder.copy_texture_to_buffer(
             wgpu::ImageCopyTexture {
                 texture: &self.texture,
@@ -227,10 +217,8 @@ impl Texture {
             self.size,
         );
 
-		// Submit the command to the queue
         queue.submit(Some(encoder.finish()));
 
-		// Wait for the GPU to finish the operation
         let buffer_slice = buffer.slice(..);
         buffer_slice.map_async(wgpu::MapMode::Read, |result| {
             if let Err(e) = result {
@@ -238,17 +226,13 @@ impl Texture {
             }
         });
 
-		// Get the buffer data
         let data = buffer_slice.get_mapped_range();
 
-		// Convert the raw data into an image::RgbaImage
         let image = RgbaImage::from_raw(width, height, data.to_vec())
             .ok_or_else(|| anyhow!("Failed to create image from raw texture data"))?;
 
-		// Unmap the buffer now that we're done with it
         buffer.unmap();
 
-		// Convert the RgbaImage into a DynamicImage
         Ok(DynamicImage::ImageRgba8(image))
     }
 }
@@ -323,3 +307,4 @@ impl CubeTexture {
         &self.sampler
     }
 }
+