CSE115.Fly
Class MoveBehaviour

java.lang.Object
  NGP.Timer
      CSE115.Fly.MoveBehaviour

All Implemented Interfaces:

ActionListener, EventListener

Direct Known Subclasses:

AttractBehaviour, RandomBehaviour, RepelBehaviour

public abstract class MoveBehaviour

extends Timer

Field Summary

protected Rectangle

areaOfMovement The limits within which inheriting classes move their Movables are defined by this

Constructor Summary

MoveBehaviour(int delay, Rectangle area)
Initializes the limiting area and inverse of speed

Method Summary

int	getTheta(double dx, double dy) Returns the phase ( angle ) of a vector in degrees
void	placeWithinBounds(Point p, int XJUMP, int YJUMP, double deltaX, double deltaY) Places a point which has gone off-limits within limits

Methods inherited from class NGP.Timer

actionPerformed, activate, getDelay, setDelay, start, stop

Methods inherited from class java.lang.Object

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

Field Detail

areaOfMovement

protected Rectangle areaOfMovement

The limits within which inheriting classes move their Movables are defined by this

Constructor Detail

MoveBehaviour

public MoveBehaviour(int delay,
                     Rectangle area)

Initializes the limiting area and inverse of speed

Parameters:

delay - inverse of speed

area - the limiting area

Method Detail

placeWithinBounds

public void placeWithinBounds(Point p,
                              int XJUMP,
                              int YJUMP,
                              double deltaX,
                              double deltaY)

Places a point which has gone off-limits within limits

Parameters:

p - the point

XJUMP - the length of stride along X

YJUMP - the length of stride along Y

deltaX - X-component of vector to move along

deltaY - Y-component of vector to move along

getTheta

public int getTheta(double dx,
                    double dy)

Returns the phase ( angle ) of a vector in degrees

Parameters:

dx - X-component of vector

dy - Y-component of vector