From 2f70b11abde1969acd1724c6406935a73fb7e9f5 Mon Sep 17 00:00:00 2001
From: Quaternions <krakow20@gmail.com>
Date: Tue, 13 Feb 2024 00:13:04 -0800
Subject: [PATCH] v1

---
 src/legacy.rs         | 34 +++++++++++++++++++++
 src/lib.rs            | 21 +++++++++++++
 src/roblox.rs         |  0
 src/source.rs         |  0
 src/texture_loader.rs | 71 +++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 126 insertions(+)
 create mode 100644 src/legacy.rs
 create mode 100644 src/lib.rs
 create mode 100644 src/roblox.rs
 create mode 100644 src/source.rs
 create mode 100644 src/texture_loader.rs

diff --git a/src/legacy.rs b/src/legacy.rs
new file mode 100644
index 0000000..56ee92a
--- /dev/null
+++ b/src/legacy.rs
@@ -0,0 +1,34 @@
+use std::io::Read;
+use std::collections::HashMap;
+use crate::texture_loader::{Texture,Textures};
+use strafesnet_common::model::TextureId;
+
+pub struct TextureLoader{
+	texture_names:HashMap<String,TextureId>,
+}
+impl TextureLoader{
+	pub fn new()->Self{
+		Self{
+			texture_names:HashMap::new(),
+		}
+	}
+}
+
+impl crate::texture_loader::TextureLoaderTrait for TextureLoader{
+	type Error=std::io::Error;
+	fn acquire_id(&mut self,name:&str)->TextureId{
+		let texture_id=TextureId::new(self.texture_names.len() as u32);
+		*self.texture_names.entry(name.to_owned()).or_insert(texture_id)
+	}
+	fn load(&self)->Result<Textures,Self::Error>{
+		let mut texture_data=vec![Vec::<u8>::new();self.texture_names.len()];
+		for (texture_name,texture_id) in &self.texture_names{
+			let path=std::path::PathBuf::from(format!("textures/{}.dds",texture_name.as_str()));
+			if let Ok(mut file)=std::fs::File::open(path){
+				//TODO: parallel
+				file.read_to_end(texture_data.get_mut(texture_id.get() as usize).unwrap())?;
+			}
+		}
+		Ok(Textures::new(texture_data.into_iter().map(Texture::ImageDDS).collect()))
+	}
+}
\ No newline at end of file
diff --git a/src/lib.rs b/src/lib.rs
new file mode 100644
index 0000000..136fdf2
--- /dev/null
+++ b/src/lib.rs
@@ -0,0 +1,21 @@
+#[cfg(feature="legacy")]
+mod legacy;
+#[cfg(feature="roblox")]
+mod roblox;
+#[cfg(feature="source")]
+mod source;
+
+pub mod texture_loader;
+
+#[cfg(feature="legacy")]
+pub fn legacy()->texture_loader::TextureLoader{
+	texture_loader::TextureLoader::Legacy(legacy::TextureLoader::new())
+}
+#[cfg(feature="roblox")]
+pub fn roblox()->texture_loader::TextureLoader{
+	texture_loader::TextureLoader::Roblox(roblox::TextureLoader::new())
+}
+#[cfg(feature="source")]
+pub fn source()->texture_loader::TextureLoader{
+	texture_loader::TextureLoader::Source(source::TextureLoader::new())
+}
\ No newline at end of file
diff --git a/src/roblox.rs b/src/roblox.rs
new file mode 100644
index 0000000..e69de29
diff --git a/src/source.rs b/src/source.rs
new file mode 100644
index 0000000..e69de29
diff --git a/src/texture_loader.rs b/src/texture_loader.rs
new file mode 100644
index 0000000..90f1742
--- /dev/null
+++ b/src/texture_loader.rs
@@ -0,0 +1,71 @@
+use strafesnet_common::model::TextureId;
+
+pub enum TextureLoader{
+	#[cfg(feature="legacy")]
+	Legacy(crate::legacy::TextureLoader),
+	#[cfg(feature="roblox")]
+	Roblox(crate::roblox::TextureLoader),
+	#[cfg(feature="source")]
+	Source(crate::source::TextureLoader),
+}
+
+pub enum Texture{
+	Image(Vec<u8>),
+	ImageDDS(Vec<u8>),
+}
+
+pub struct Textures{
+	textures:Vec<Texture>,
+}
+impl Textures{
+	pub(crate) const fn new(textures:Vec<Texture>)->Self{
+		Self{
+			textures,
+		}
+	}
+	pub fn get_texture(&self,texture_id:TextureId)->Option<&Texture>{
+		self.textures.get(texture_id.get() as usize)
+	}
+}
+
+pub trait TextureLoaderTrait{
+	type Error;
+	//write down the name of a texture to be fetched later, return a unique id for that texture
+	fn acquire_id(&mut self,name:&str)->TextureId;
+	fn load(&self)->Result<Textures,Self::Error>;
+}
+
+pub enum TextureLoaderError{
+	#[cfg(feature="legacy")]
+	Legacy(<crate::legacy::TextureLoader as TextureLoaderTrait>::Error),
+	#[cfg(feature="roblox")]
+	Roblox(<crate::roblox::TextureLoader as TextureLoaderTrait>::Error),
+	#[cfg(feature="source")]
+	Source(<crate::source::TextureLoader as TextureLoaderTrait>::Error),
+}
+
+impl TextureLoaderTrait for TextureLoader{
+	type Error=TextureLoaderError;
+	fn acquire_id(&mut self,name:&str)->TextureId{
+		match self{
+			#[cfg(feature="legacy")]
+			TextureLoader::Legacy(loader)=>loader.acquire_id(name),
+			#[cfg(feature="roblox")]
+			TextureLoader::Roblox(loader)=>loader.acquire_id(name),
+			#[cfg(feature="source")]
+			TextureLoader::Source(loader)=>loader.acquire_id(name),
+			_=>unreachable!(),
+		}
+	}
+	fn load(&self)->Result<Textures,Self::Error>{
+		match self{
+			#[cfg(feature="legacy")]
+			TextureLoader::Legacy(loader)=>loader.load().map_err(TextureLoaderError::Legacy),
+			#[cfg(feature="roblox")]
+			TextureLoader::Roblox(loader)=>loader.load().map_err(TextureLoaderError::Roblox),
+			#[cfg(feature="source")]
+			TextureLoader::Source(loader)=>loader.load().map_err(TextureLoaderError::Source),
+			_=>unreachable!(),
+		}
+	}
+}
\ No newline at end of file