group wires into one tool option

src/marble_engine/board.rs

@@ -35,6 +35,25 @@ pub struct Board {
 }
 
 impl Board {
+	pub fn parse(source: &str) -> Self {
+		let mut rows = Vec::new();
+
+		let mut width = 0;
+		for line in source.lines() {
+			width = width.max(line.len());
+			let mut tiles = Vec::new();
+			for char in line.chars() {
+				tiles.push(Tile::from_char(char));
+			}
+			rows.push(tiles);
+		}
+		for line in &mut rows {
+			line.resize(width, Tile::Blank);
+		}
+
+		Board::new(rows)
+	}
+
 	pub fn new_empty(width: usize, height: usize) -> Self {
 		let rows = vec![vec![Tile::Blank; width]; height];
 		Self {