fix marbles not working in negative quadrants

src/marble_engine/board.rs

@@ -283,6 +283,22 @@ impl Board {
 		self.height
 	}
 
+	pub fn get_marbles(&self) -> Vec<Pos> {
+		let mut out = Vec::new();
+		for y in 0..self.height {
+			for x in 0..self.width {
+				if let Tile::Marble { value: _, dir: _ } = self.rows[y][x] {
+					out.push(Pos {
+						x: x as isize - self.offset_x,
+						y: y as isize - self.offset_y,
+					});
+				}
+			}
+		}
+		dbg!(&out);
+		out
+	}
+
 	pub fn draw(&self, d: &mut RaylibDrawHandle, textures: &Textures, offset: Vector2, zoom: i32) {
 		let tile_size = 16 << zoom;