gizmoball.board
Class Ball

java.lang.Object
  gizmoball.board.Gizmo
      gizmoball.board.Ball

public class Ball
extends Gizmo

This class represents a ball gizmo that extends the abstract Gizmo class. A ball has a velocity that can be changed, and the ball can move around. A ball can be a "ghost ball" which then does not collide with other balls.

Author:

Michal Wexler

Field Summary

Fields inherited from class gizmoball.board.Gizmo

color, connections, name, reverseConnections

Constructor Summary

Ball(java.lang.String name, java.awt.Color color, double radius, Vect initialLocation, Vect velocity, boolean inAbsorber, boolean ghostBall)
constructs a Ball object.

Method Summary

void	action() a ball does not have an action.
void	changeCenter(Vect loc) moves the center of the ball to a new location.
double	getMass() returns the mass of the ball.
Circle09	getShape() returns the shape of the ball.
Vect	getVelocity() returns the velocity of the ball.
boolean	isGhostBall() checks if the ball is a ghost ball.
boolean	isInAbsorber() returns if the ball is in an absorber or not.
void	setInAbsorber(boolean bool) sets the state of whether the ball is in an absorber.
void	setVelocity(Vect v) sets the velocity of the ball.

Methods inherited from class gizmoball.board.Gizmo

getColor, getName, getTriggeredGizmos, getTriggeringGizmos, setColor, triggerConnections

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Ball

public Ball(java.lang.String name,
            java.awt.Color color,
            double radius,
            Vect initialLocation,
            Vect velocity,
            boolean inAbsorber,
            boolean ghostBall)

constructs a Ball object.

Parameters:

name - the name of the ball

color - the color of the ball

radius - the radius of the ball

initialLocation - the initial location of the ball

velocity - the initial velocity of the ball

inAbsorber - a boolean that specifies whether the ball is absorbed by an absorber

ghostBall - a boolean that specifies whether the ball is a ghost ball

Method Detail

getShape

public Circle09 getShape()

returns the shape of the ball. this method overrides the method of Gizmo.

Overrides:

getShape in class Gizmo

Returns:

the shape of the ball

getMass

public double getMass()

returns the mass of the ball.

Returns:

the mass of the ball

setVelocity

public void setVelocity(Vect v)

sets the velocity of the ball. If the ball is in an absorber the velocity cannot be changed.

Parameters:

v - the new velocity of the ball

isGhostBall

public boolean isGhostBall()

checks if the ball is a ghost ball.

Returns:

true if the ball is a ghost ball

getVelocity

public Vect getVelocity()

returns the velocity of the ball.

Returns:

the velocity of the ball

isInAbsorber

public boolean isInAbsorber()

returns if the ball is in an absorber or not.

Returns:

true if the ball is in an absorber

setInAbsorber

public void setInAbsorber(boolean bool)

sets the state of whether the ball is in an absorber.

Parameters:

bool - a boolean that states if the ball is in an absorber

changeCenter

public void changeCenter(Vect loc)

moves the center of the ball to a new location.

Parameters:

loc - the new location of the center of the ball

action

public void action()

a ball does not have an action.

Overrides:

action in class Gizmo