org.starhope.appius.physica
Class RigidBody

java.lang.Object
  org.starhope.appius.physica.RigidBody

public class RigidBody
extends Object

WRITEME: Document this type.

Author:

ewinkelman

Constructor Summary

RigidBody()

Method Summary

static void	collide(Collidable obj1, Collidable obj2, long timeIndex) Collides two objects.
static Vector2D[]	conserveMomentum(Vector2D myVelocity, Vector2D otherVelocity, double myMass, double otherMass, double cor) Velocity change equation for conserving momentum between two objects
static Vector2D	findComponent(Vector2D incident, Vector2D normal) Finds the vector component of the incident vector in the normal vector
static Collection<Point2D>	getCollisionPoints(GeneralPath path1, GeneralPath path2)
static boolean	hasCollision(GeneralPath path1, GeneralPath path2) Gets a set of all current collision points between two objects
static Vector2D	Reflect(Vector2D incident, Vector2D normal) Reflects a vector around a normal

Methods inherited from class java.lang.Object

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

Constructor Detail

RigidBody

public RigidBody()

Method Detail

collide

public static void collide(Collidable obj1,
                           Collidable obj2,
                           long timeIndex)
                    throws GameLogicException

Collides two objects. If the two objects are not in a collision state it leaves them unchanged.

Parameters:

obj1 - First object in the collision

obj2 - Second object in the collision

timeIndex - Time index of the collision

Throws:

GameLogicException - WRITEME

conserveMomentum

public static final Vector2D[] conserveMomentum(Vector2D myVelocity,
                                                Vector2D otherVelocity,
                                                double myMass,
                                                double otherMass,
                                                double cor)

Velocity change equation for conserving momentum between two objects

Parameters:

myVelocity - Main object's velocity

otherVelocity - Other object's velocity

myMass - Main object's mass

otherMass - Other object's mass

cor - Coefficient of Restitution

Returns:

A pair of vectors with the new velocities for object 1 and object 2

findComponent

public static Vector2D findComponent(Vector2D incident,
                                     Vector2D normal)

Finds the vector component of the incident vector in the normal vector

Parameters:

incident - Incident Vector

normal - Normal Vector

Returns:

The portion of the incident vector in the normal vector

getCollisionPoints

public static Collection<Point2D> getCollisionPoints(GeneralPath path1,
                                                     GeneralPath path2)

Parameters:

path1 - WRITEME

path2 - WRITEME

Returns:

WRITEME

hasCollision

public static boolean hasCollision(GeneralPath path1,
                                   GeneralPath path2)

Gets a set of all current collision points between two objects

Parameters:

path1 - Path of object one's collision boundaries

path2 - Path of object two's collision boundaries

Returns:

A set of points where the objects collide

Reflect

public static Vector2D Reflect(Vector2D incident,
                               Vector2D normal)

Reflects a vector around a normal

Parameters:

incident - Incident vector

normal - Normal vector

Returns:

The new incident vector