sim.physics2D.collisionDetection
Class CollisionPair

java.lang.Object
  sim.physics2D.util.PhysicalObjectPair
      sim.physics2D.collisionDetection.CollisionPair

public class CollisionPair
extends PhysicalObjectPair

CollisionPair represents a pair of objects that are currently colliding

Field Summary

Fields inherited from class sim.physics2D.util.PhysicalObjectPair

c1, c2, hashcode

Constructor Summary

CollisionPair(PhysicalObject2D c1, PhysicalObject2D c2)

Method Summary

void	clear()
Double2D	getColPoint1() Returns a vector pointing from the center of object 1 to the collision point
Double2D	getColPoint2() Returns a vector pointing from the center of object 2 to the collision point
Double2D	getNormal() Returns the collision normal.
double	getRelativeVelocity() Returns the relative velocity of the objects along the collision normal
boolean	getSticky() Returns a value indicated whether this is a sticky collision or not.
void	setSticky() Indicates that this collision should be perfectly inelastic (so the objects lose all energy along the collision normal).

Methods inherited from class sim.physics2D.util.PhysicalObjectPair

equals, hashCode

Methods inherited from class java.lang.Object

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

Constructor Detail

CollisionPair

public CollisionPair(PhysicalObject2D c1,
                     PhysicalObject2D c2)

Method Detail

getColPoint1

public Double2D getColPoint1()

Returns a vector pointing from the center of object 1 to the collision point

getColPoint2

public Double2D getColPoint2()

Returns a vector pointing from the center of object 2 to the collision point

getNormal

public Double2D getNormal()

Returns the collision normal. The collision normal points out from object 2.

getRelativeVelocity

public double getRelativeVelocity()

Returns the relative velocity of the objects along the collision normal

setSticky

public void setSticky()

Indicates that this collision should be perfectly inelastic (so the objects lose all energy along the collision normal).

getSticky

public boolean getSticky()

Returns a value indicated whether this is a sticky collision or not.

clear

public void clear()