fn distance_with<T: Entity>(&self, target: &T) -> f64 {
        let Position(x1, y1) = self.position();
        let Position(x2, y2) = target.position();
        let (x, y) = (x2-x1, y2-y1);

        f64::sqrt(x*x + y*y)
    }
/// Calculates the distance between this object and the target.
Calculates the distance between this object and the target.
Calculates the distance between this object and the target .
fn distance_with<T: Entity>(&self, target: &T) -> f64 {
        let Position(x1, y1) = self.position();
        let Position(x2, y2) = target.position();
        let (x, y) = (x2-x1, y2-y1);
        f64::sqrt(x*x + y*y)
    }
fn distance_with < T : Entity > ( & self , target : & T ) -> f64 { let Position ( x1 , y1 ) = self . position ( ) ; let Position ( x2 , y2 ) = target . position ( ) ; let ( x , y ) = ( x2 - x1 , y2 - y1 ) ; f64 :: sqrt ( x * x + y * y ) }
Calculates the distance between this object and the target.
Calculates the distance between this object and the target .
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