♻️

src/bin/pumpkin.rs

@@ -140,13 +140,31 @@ struct BorrowedShaderVars <'a> {
 	attrs: &'a renderable_model::AttrMap,
 }
 
+fn get_shader_attrs (
+	shader: &ShaderProgram,
+	attr_lookup: &Vec <(usize, &str)>
+) 
+-> renderable_model::AttrMap
+{
+	let mut v = vec! [None; attr_lookup.iter ().map (|(i, _)| i).max ().unwrap () + 1];
+	
+	let attrs = shader.get_attribute_locations (attr_lookup.iter ().map (|(_, v)| v).copied ());
+	
+	for ((i, _), loc) in attr_lookup.iter ().zip (attrs.iter ()) {
+		v [*i] = *loc;
+	}
+	
+	v
+}
+
 impl ShaderClosure {
 	pub fn new (
 		program: ShaderProgram, 
 		uniforms: HashMap <u32, i32>,
-		attributes: renderable_model::AttrMap
+		attr_lookup: &Vec <(usize, &str)>
 	) -> Self
 	{
+		let attributes = get_shader_attrs (&program, attr_lookup);
 		Self {
 			program,
 			uniforms,
@@ -208,15 +226,6 @@ fn main () {
 		ShaderProgram::new (&vert_shader, &frag_shader).unwrap ()
 	};
 	
-	let attr_lookup: Vec <(_, &str)> = {
-		use renderable_model::attributes::*;
-		vec! [
-			(POS, "attr_pos"),
-			(UV, "attr_uv"),
-			(NORMAL, "attr_normal"),
-		]
-	};
-	
 	let uni_lookup: HashMap <_, &str> = HashMap::from_iter ({
 		use uniforms::*;
 		vec! [
@@ -230,21 +239,6 @@ fn main () {
 		].into_iter ()
 	});
 	
-	let get_shader_attrs = |shader: &ShaderProgram| {
-		let mut v = vec! [None; attr_lookup.iter ().map (|(i, _)| i).max ().unwrap () + 1];
-		
-		let attrs = shader.get_attribute_locations (attr_lookup.iter ().map (|(_, v)| v).copied ());
-		
-		for ((i, _), loc) in attr_lookup.iter ().zip (attrs.iter ()) {
-			v [*i] = *loc;
-		}
-		
-		v
-	};
-	
-	let attrs = get_shader_attrs (&shader_program);
-	let shadow_attrs = get_shader_attrs (&shadow_shader);
-	
 	let unis = {
 		let unis = shader_program.get_uniform_locations (uni_lookup.values ().copied ());
 		
@@ -265,15 +259,25 @@ fn main () {
 		unis
 	};
 	
-	{
+	let attr_lookup: Vec <(_, &str)> = {
+		use renderable_model::attributes::*;
+		vec! [
+			(POS, "attr_pos"),
+			(UV, "attr_uv"),
+			(NORMAL, "attr_normal"),
+		]
+	};
+	
+	let shader_diffuse = ShaderClosure::new (shader_program, unis, &attr_lookup);
+	let shader_shadow = ShaderClosure::new (shadow_shader, shadow_unis, &attr_lookup);
+	
+	shader_diffuse.with (|shader_vars| {
+		let attrs = shader_vars.attrs;
 		use renderable_model::attributes::*;
 		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);
+	});
 	
 	let texture = Texture::from_file ("sky.png");
 	texture.bind ();