org.mini2Dx.core.engine.geom

Class CollisionPoint

java.lang.Object

com.badlogic.gdx.math.Vector2

org.mini2Dx.core.geom.Point

org.mini2Dx.core.engine.geom.CollisionPoint

All Implemented Interfaces:

com.badlogic.gdx.math.Vector<com.badlogic.gdx.math.Vector2>, java.io.Serializable, Positionable, Updatable

public class CollisionPoint
extends Point
implements Positionable

An implementation of Point that allows for interpolation. Game objects can use this class to move around the game world and retrieve the appropriate rendering coordinates after interpolating between the previous and current position.

See Also:

Serialized Form

Field Summary

Fields inherited from class com.badlogic.gdx.math.Vector2

x, X, y, Y, Zero

Constructor Summary

Constructors

Constructor and Description
CollisionPoint()
CollisionPoint(float x, float y)
CollisionPoint(Point point)

Method Summary

Methods

Modifier and Type	Method and Description
com.badlogic.gdx.math.Vector2	add(float x, float y)
<T extends Positionable> void	addPostionChangeListener(PositionChangeListener<T> listener) Adds a PositionChangeListener to be notified of coordinate changes
float	getDistanceTo(Positionable positionable) Returns this distance between this object's x,y coordinates and the provided Positionable's xy coordinates
float	getRenderX()
float	getRenderY()
void	interpolate(GameContainer gc, float alpha) Interpolate between the previous and current state
void	preUpdate() This method needs to be called at the start of each frame before any changes are made to this object
<T extends Positionable> void	removePositionChangeListener(PositionChangeListener<T> listener) Removes a PositionChangeListener to stop it being notified of coordinate changes
com.badlogic.gdx.math.Vector2	set(float x, float y)
com.badlogic.gdx.math.Vector2	sub(float x, float y)
void	update(GameContainer gc, float delta) Updates the game screen

Methods inherited from class org.mini2Dx.core.geom.Point

add, equals, equals, getDistanceTo, getDistanceTo, getX, getY, isOnLineBetween, rotateAround, set, sub

Methods inherited from class com.badlogic.gdx.math.Vector2

angle, angle, angleRad, angleRad, clamp, cpy, crs, crs, dot, dot, dot, dst, dst, dst, dst2, dst2, dst2, epsilonEquals, epsilonEquals, equals, hashCode, hasOppositeDirection, hasSameDirection, interpolate, isCollinear, isCollinear, isCollinearOpposite, isCollinearOpposite, isOnLine, isOnLine, isPerpendicular, isPerpendicular, isUnit, isUnit, isZero, isZero, len, len, len2, len2, lerp, limit, limit2, mul, mulAdd, mulAdd, nor, rotate, rotate90, rotateRad, scl, scl, scl, setAngle, setAngleRad, setLength, setLength2, setZero, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.mini2Dx.core.engine.Positionable

getX, getY

Constructor Detail

CollisionPoint

public CollisionPoint()

CollisionPoint

public CollisionPoint(float x,
              float y)

CollisionPoint

public CollisionPoint(Point point)

Method Detail

preUpdate

public void preUpdate()

This method needs to be called at the start of each frame before any changes are made to this object

update

public void update(GameContainer gc,
          float delta)

Description copied from interface: Updatable

Updates the game screen

Specified by:

update in interface Updatable

Parameters:

gc - The GameContainer of the game

delta - The time in seconds since the last update

interpolate

public void interpolate(GameContainer gc,
               float alpha)

Description copied from interface: Updatable

Interpolate between the previous and current state

Specified by:

interpolate in interface Updatable

alpha - The interpolation alpha value

getDistanceTo

public float getDistanceTo(Positionable positionable)

Description copied from interface: Positionable

Returns this distance between this object's x,y coordinates and the provided Positionable's xy coordinates

Specified by:

getDistanceTo in interface Positionable

Parameters:

positionable - The Positionable to retrieve the distance from

Returns:

0 if the xy coordinates are the same

addPostionChangeListener

public <T extends Positionable> void addPostionChangeListener(PositionChangeListener<T> listener)

Description copied from interface: Positionable

Adds a PositionChangeListener to be notified of coordinate changes

Specified by:

addPostionChangeListener in interface Positionable

Parameters:

listener - The PositionChangeListener to add

removePositionChangeListener

public <T extends Positionable> void removePositionChangeListener(PositionChangeListener<T> listener)

Description copied from interface: Positionable

Removes a PositionChangeListener to stop it being notified of coordinate changes

Specified by:

removePositionChangeListener in interface Positionable

Parameters:

listener - The PositionChangeListener to remove

set

public com.badlogic.gdx.math.Vector2 set(float x,
                                float y)

Overrides:

set in class com.badlogic.gdx.math.Vector2

add

public com.badlogic.gdx.math.Vector2 add(float x,
                                float y)

Overrides:

add in class com.badlogic.gdx.math.Vector2

sub

public com.badlogic.gdx.math.Vector2 sub(float x,
                                float y)

Overrides:

sub in class com.badlogic.gdx.math.Vector2

getRenderX

public float getRenderX()

getRenderY

public float getRenderY()