PinBallDomain
Interface Obstacle

All Known Implementing Classes:

PolygonObstacle, Target

public interface Obstacle

An interface to represent obstacles.

Author:

George Konidaris (gdk at cs dot umass dot edu)

Method Summary

boolean	collision(Ball b) Determine whether a collision with the ball has occurred.
double[]	collisionEffect(Ball b) Return the effect of a collision with the ball.
Point	getIntercept() Get the intercept position with the ball.
boolean	inside(Point p) Determine whether a point is inside an obstacle.
void	write(java.io.FileWriter f) Write this object to a file.

Method Detail

collisionEffect

double[] collisionEffect(Ball b)

Return the effect of a collision with the ball.

Parameters:

b - the ball

Returns:

changes to the ball's X and Y velocities

collision

boolean collision(Ball b)

Determine whether a collision with the ball has occurred.

Parameters:

b - the ball

Returns:

true if there is a collision, false otherwise

getIntercept

Point getIntercept()

Get the intercept position with the ball. This should be called after collision and collisionEffect.

Returns:

the point of collision

inside

boolean inside(Point p)

Determine whether a point is inside an obstacle.

Parameters:

p - the point to test

Returns:

true if p is inside the obstacle, false otherwise

write

void write(java.io.FileWriter f)
           throws java.io.IOException

Write this object to a file.

Parameters:

f - the file

Throws:

java.io.IOException