Class CollisionHandler

java.lang.Object
  |
  +--CollisionHandler

public class CollisionHandler

extends java.lang.Object

implements LocationHandler

This class implements the simple two dimensional collision handling.

Field Summary

protected static int	FIELD_HIGH Playfield high
protected static int	FIELD_WIDTH Playfield width
protected boolean	m_bCollision Collision state
protected static byte[][]	m_byarrCollision Two dimensional collision array
protected javax.vecmath.Point3f	m_cCollPoint Collision location
protected int	m_iLastX Previous player location at the last frame.
protected int	m_iLastY Previous player location at the last frame.
protected static Tron3D	m_theApp Reference to main application

Constructor Summary

CollisionHandler(javax.vecmath.Point3f cStartPoint)
Initializes the collision array and sets the surrounding walls.

Method Summary

void	AddCorner(javax.vecmath.Point3f p) This method should be called at each turn of the player.
javax.vecmath.Point3f	getCollPoint() Returns the location of the collision.
boolean	isCollision() Returns the status of a collision.
void	SetLocation(javax.vecmath.Point3f p) Sets the current location of the player in the collision matrix and checks for a collision.

Methods inherited from class java.lang.Object

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

Field Detail

FIELD_WIDTH

protected static final int FIELD_WIDTH

Playfield width

FIELD_HIGH

protected static final int FIELD_HIGH

Playfield high

m_byarrCollision

protected static byte[][] m_byarrCollision

Two dimensional collision array

m_theApp

protected static Tron3D m_theApp

Reference to main application

m_bCollision

protected boolean m_bCollision

Collision state

m_iLastX

protected int m_iLastX

Previous player location at the last frame.

m_iLastY

protected int m_iLastY

Previous player location at the last frame.

m_cCollPoint

protected javax.vecmath.Point3f m_cCollPoint

Collision location

Constructor Detail

CollisionHandler

public CollisionHandler(javax.vecmath.Point3f cStartPoint)

Initializes the collision array and sets the surrounding walls.

Parameters:

cStartPoint - Start point of the player

Method Detail

isCollision

public final boolean isCollision()

Returns the status of a collision.

Returns:

true if a collision happened. false for no collision.

getCollPoint

public final javax.vecmath.Point3f getCollPoint()

Returns the location of the collision.

Returns:

The two dimensional collision point.

SetLocation

public void SetLocation(javax.vecmath.Point3f p)

Sets the current location of the player in the collision matrix and checks for a collision. This method should be called once per frame.

Specified by:

SetLocation in interface LocationHandler

Parameters:

p - Current location of the player.

AddCorner

public void AddCorner(javax.vecmath.Point3f p)

This method should be called at each turn of the player. (Has currently no special function but could be used for future enhancements).

Specified by:

AddCorner in interface LocationHandler

Parameters:

p - Location of the corner.