physics
Class GravityMotion

java.lang.Object
  physics.IMotion
      physics.GravityMotion

public class GravityMotion
extends IMotion

GravityMotion.java Created: Thu Nov 11 13:30:05 2004

Version:

A IMotion that mimics gravity

Author:

Constructor Summary

GravityMotion(CollisionObject colOb)
Creates a new GravityMotion instance.

Method Summary

void	bounce(CollisionObject co) A bounce for this motion
int	getDX() Returns dx of the velocity
int	getDY() Returns dy of the velocity
int	getSpeed() Returns the speed of the motion
void	setDX(int dx) Set the DX direction
void	setDY(int dy) Sets the DY direction
void	setGravity(int g) Override to do something useful
void	setVelocity(int dx, int dy, int speed) Sets the velocity of the motion
void	start() Starts the MotionTimer for this motion
void	stop() Stops the MotionTimer for this object
void	timerReact() Moves the object at intervals decided by the timer and checks for collisions

Methods inherited from class physics.IMotion

changeMomentum, getCollided, getVelocity, setCoefficient, setDX, setDY, setLocation, switchMomentum

Methods inherited from class java.lang.Object

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

Constructor Detail

GravityMotion

public GravityMotion(CollisionObject colOb)

Creates a new GravityMotion instance.

Parameters:

colOb - a CollisionObject value

Method Detail

setGravity

public void setGravity(int g)

Description copied from class: IMotion

Override to do something useful

Overrides:

setGravity in class IMotion

Parameters:

g - an int value

setVelocity

public void setVelocity(int dx,
                        int dy,
                        int speed)

Sets the velocity of the motion

Specified by:

setVelocity in class IMotion

Parameters:

dx - - change in x direction

dy - - change in y direction

speed - - Timer delay

getSpeed

public int getSpeed()

Returns the speed of the motion

Specified by:

getSpeed in class IMotion

Returns:

the timer delay

getDX

public int getDX()

Returns dx of the velocity

Specified by:

getDX in class IMotion

Returns:

the change in x direction

getDY

public int getDY()

Returns dy of the velocity

Specified by:

getDY in class IMotion

Returns:

the change in y direction

timerReact

public void timerReact()

Moves the object at intervals decided by the timer and checks for collisions

Specified by:

timerReact in class IMotion

start

public void start()

Starts the MotionTimer for this motion

Specified by:

start in class IMotion

stop

public void stop()

Stops the MotionTimer for this object

Specified by:

stop in class IMotion

bounce

public void bounce(CollisionObject co)

A bounce for this motion

Specified by:

bounce in class IMotion

Parameters:

co - a CollisionObject value

setDX

public void setDX(int dx)

Set the DX direction

Specified by:

setDX in class IMotion

setDY

public void setDY(int dy)

Sets the DY direction

Specified by:

setDY in class IMotion