make blueprint id a number instead of string

src/blueprint.rs

@@ -10,7 +10,7 @@ use crate::{marble_engine::board::Board, userdata_dir};
 
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct Blueprint {
-	id: String,
+	id: usize,
 	pub name: String,
 	pub board: String,
 	#[serde(skip, default)]
@@ -18,17 +18,17 @@ pub struct Blueprint {
 }
 
 impl Blueprint {
-	pub fn new(content: &Board, number: usize) -> Self {
+	pub fn new(content: &Board, id: usize) -> Self {
 		Self {
-			id: format!("blueprint_{number}"),
-			name: format!("Blueprint {number}"),
+			id,
+			name: format!("Blueprint {id}"),
 			board: content.to_string(),
 			tile_board: Some(content.clone()),
 		}
 	}
 
-	pub fn id(&self)->&String{
-		&self.id
+	pub fn id(&self) -> usize {
+		self.id
 	}
 
 	pub fn convert_board(&mut self) -> &Board {
@@ -45,7 +45,7 @@ impl Blueprint {
 	fn path(&self) -> PathBuf {
 		let dir = userdata_dir().join("blueprints");
 		fs::create_dir_all(&dir).unwrap();
-		dir.join(format!("{}.json", &self.id))
+		dir.join(format!("blueprint_{}.json", &self.id))
 	}
 
 	pub fn save(&self) {

src/editor.rs

@@ -283,7 +283,7 @@ impl Editor {
 		let mut id = 0;
 		'outer: loop {
 			for b in &self.blueprints {
-				if b.id() == &format!("blueprint_{id}") {
+				if b.id() == id {
 					id += 1;
 					continue 'outer;
 				}