question: private boolean positionSign ( Entity sign ) { for ( int y = 125 ; y <= 127 ; y ++ ) { for ( int x = 80 ; x > 51 ; x -- ) { if ( ! zone . collides ( sign , x , y ) ) { sign . setPosition ( x , y ) ; zone . add ( sign ) ; return true ; } } } return false ; }
target:  position the sign at an empty spot