♻️

src/bin/pumpkin.rs

@@ -101,7 +101,8 @@ impl WorldState {
 mod uniforms {
 use iota::iota;
 iota! {
-	pub const MVP: u32 = iota;
+pub const 
+	  MVP: u32 = iota;
 	, OBJECT_SPACE_LIGHT
 	, OBJECT_SPACE_SKY
 	, ALBEDO
@@ -131,19 +132,19 @@ where P: AsRef <std::path::Path>
 struct ShaderClosure {
 	program: ShaderProgram,
 	uniforms: HashMap <u32, i32>,
-	attributes: HashMap <String, Option <u32>>,
+	attributes: HashMap <usize, Option <u32>>,
 }
 
 struct BorrowedShaderVars <'a> {
 	unis: &'a HashMap <u32, i32>,
-	attrs: &'a HashMap <String, Option <u32>>,
+	attrs: &'a HashMap <usize, Option <u32>>,
 }
 
 impl ShaderClosure {
 	pub fn new (
 		program: ShaderProgram, 
 		uniforms: HashMap <u32, i32>,
-		attributes: HashMap <String, Option <u32>>
+		attributes: HashMap <usize, Option <u32>>
 	) -> Self
 	{
 		Self {
@@ -207,17 +208,14 @@ fn main () {
 		ShaderProgram::new (&vert_shader, &frag_shader).unwrap ()
 	};
 	
-	let attrs = shader_program.get_attribute_locations (vec! [
+	let attr_lookup: HashMap <_, &str> = HashMap::from_iter ({
-		"pos",
+		use renderable_model::attributes::*;
-		"uv",
+		vec! [
-		"normal",
+			(POS, "pos"),
-	].into_iter ());
+			(UV, "uv"),
-	
+			(NORMAL, "normal"),
-	let shadow_attrs = shadow_shader.get_attribute_locations (vec! [
+		].into_iter ()
-		"pos",
+	});
-		"uv",
-		"normal",
-	].into_iter ());
 	
 	let uni_lookup: HashMap <_, &str> = HashMap::from_iter ({
 		use uniforms::*;
@@ -232,6 +230,24 @@ fn main () {
 		].into_iter ()
 	});
 	
+	let attrs = {
+		let attrs = shader_program.get_attribute_locations (attr_lookup.values ().copied ());
+		
+		HashMap::from_iter (
+			attr_lookup.iter ()
+			.map (|(key, name)| (*key, *attrs.get (*name).unwrap ()))
+		)
+	};
+	
+	let shadow_attrs = {
+		let attrs = shadow_shader.get_attribute_locations (attr_lookup.values ().copied ());
+		
+		HashMap::from_iter (
+			attr_lookup.iter ()
+			.map (|(key, name)| (*key, *attrs.get (*name).unwrap ()))
+		)
+	};
+	
 	let unis = {
 		let unis = shader_program.get_uniform_locations (uni_lookup.values ().copied ());
 		
@@ -252,9 +268,12 @@ fn main () {
 		unis
 	};
 	
-	glezz::enable_vertex_attrib_array (attrs ["pos"]);
+	{
-	glezz::enable_vertex_attrib_array (attrs ["uv"]);
+		use renderable_model::attributes::*;
-	glezz::enable_vertex_attrib_array (attrs ["normal"]);
+		glezz::enable_vertex_attrib_array (attrs [&POS]);
+		glezz::enable_vertex_attrib_array (attrs [&UV]);
+		glezz::enable_vertex_attrib_array (attrs [&NORMAL]);
+	}
 	
 	let shader_diffuse = ShaderClosure::new (shader_program, unis, attrs);
 	let shader_shadow = ShaderClosure::new (shadow_shader, shadow_unis, shadow_attrs);
@@ -405,7 +424,7 @@ fn main () {
 			glezz::uniform_3fv (unis [&OBJECT_SPACE_LIGHT], &object_space_light);
 			glezz::uniform_3fv (unis [&OBJECT_SPACE_SKY], &object_space_sky);
 			
-			mesh_pumpkin.draw_all (&attrs, |i| {
+			mesh_pumpkin.draw_all (attrs, |i| {
 				glezz::uniform_3fv (unis [&ALBEDO], &pumpkin_colors [i]);
 				true
 			});
@@ -413,7 +432,7 @@ fn main () {
 			let mvp = view_mat * world_model_mat;
 			glezz::uniform_matrix_4fv (unis [&MVP], &mvp);
 			
-			mesh_pitch.draw_all (&attrs, |i| {
+			mesh_pitch.draw_all (attrs, |i| {
 				glezz::uniform_3fv (unis [&ALBEDO], &pitch_colors [i]);
 				i != grass_index
 			});
@@ -427,7 +446,7 @@ fn main () {
 				glezz::uniform_3fv (unis [&MIN_ALBEDO], &black);
 				glezz::uniform_1i (unis [&TEXTURE], 0);
 				
-				mesh_sky.draw_all (&attrs, |_| true);
+				mesh_sky.draw_all (attrs, |_| true);
 			}
 			
 			glezz::enable (gl::STENCIL_TEST);
@@ -450,12 +469,12 @@ fn main () {
 			let mvp = view_mat * pumpkin_model_mat;
 			glezz::uniform_matrix_4fv (unis [&MVP], &mvp);
 			
-			mesh_pumpkin.draw_all (&attrs, |_| true);
+			mesh_pumpkin.draw_all (attrs, |_| true);
 			
 			let mvp = view_mat * world_model_mat;
 			glezz::uniform_matrix_4fv (unis [&MVP], &mvp);
 			
-			mesh_pitch.draw_all (&attrs, |i| i != grass_index);
+			mesh_pitch.draw_all (attrs, |i| i != grass_index);
 			
 			unsafe {
 				gl::ColorMask (255, 255, 255, 255);
@@ -489,14 +508,14 @@ fn main () {
 				gl::StencilOp (gl::KEEP, gl::KEEP, gl::KEEP);
 			}
 			glezz::uniform_3fv (unis [&OBJECT_SPACE_LIGHT], &Vec3::from ((0.0, 0.0, 0.0)));
-			mesh_pitch.draw (&attrs, grass_index);
+			mesh_pitch.draw (attrs, grass_index);
 			
 			unsafe {
 				gl::StencilFunc (gl::EQUAL, 0, 1);
 				gl::StencilOp (gl::KEEP, gl::KEEP, gl::KEEP);
 			}
 			glezz::uniform_3fv (unis [&OBJECT_SPACE_LIGHT], &object_space_light);
-			mesh_pitch.draw (&attrs, grass_index);
+			mesh_pitch.draw (attrs, grass_index);
 		});
 		
 		window.gl_swap_window ();

src/renderable_model.rs

@@ -37,7 +37,17 @@ unsafe fn vertex_attrib_pointer (id: Option <u32>, num_coords: i32, float_offset
 	}
 }
 
-pub type AttrMap = HashMap <String, Option <u32>>;
+pub type AttrMap = HashMap <usize, Option <u32>>;
+
+pub mod attributes {
+use iota::iota;
+iota! {
+pub const 
+	  POS: usize = iota;
+	, UV
+	, NORMAL
+}
+}
 
 impl RenderableModel {
 	pub fn from_iqm (model: &iqm::Model) -> RenderableModel {
@@ -99,9 +109,10 @@ impl RenderableModel {
 		self.indexes.bind ();
 		
 		unsafe {
-			vertex_attrib_pointer (attrs ["pos"], 3, 0);
+			use attributes::*;
-			vertex_attrib_pointer (attrs ["uv"], 2, self.num_pos);
+			vertex_attrib_pointer (attrs [&POS], 3, 0);
-			vertex_attrib_pointer (attrs ["normal"], 3, self.num_pos + self.num_uv);
+			vertex_attrib_pointer (attrs [&UV], 2, self.num_pos);
+			vertex_attrib_pointer (attrs [&NORMAL], 3, self.num_pos + self.num_uv);
 		}
 		
 		for mesh_num in start..end {