Draw the piece at their places at the start of the level

app/src/main/java/school_project/GameUI.java

@@ -43,6 +43,11 @@ public class GameUI extends Group{
 
             piece_space.y += _piece.boundary_size.y;
 
+            if(p.getPosition() != null){
+                _piece.setLayoutX(grid.getLayoutX() + p.getPosition().y * (SEGMENT_SIZE+SPACE_SIZE));
+                _piece.setLayoutY(grid.getLayoutY() + p.getPosition().x * (SEGMENT_SIZE+SPACE_SIZE));
+            }
+
             // Pieces Events
             _piece.setOnMouseClicked(event -> {
                 if(event.getButton() == MouseButton.SECONDARY){