org.mini2Dx.core.collision

Class CollisionCircle

java.lang.Object

org.mini2Dx.core.geom.Shape

org.mini2Dx.core.geom.Circle

org.mini2Dx.core.collision.CollisionCircle

All Implemented Interfaces:

CollisionArea, CollisionObject, Positionable, PositionChangeListener<CollisionCircle>, Sizeable, SizeChangeListener<CollisionCircle>, Interpolatable

public class CollisionCircle
extends Circle
implements CollisionArea, PositionChangeListener<CollisionCircle>, SizeChangeListener<CollisionCircle>

An implementation of Circle that allows for interpolation. Game objects can use this class to move around the game world and retrieve the appropriate rendering coordinates during the render phase.

Field Summary

Fields inherited from class org.mini2Dx.core.geom.Shape

positionChangeListeners, sizeChangeListeners

Constructor Summary

Constructors

Constructor and Description
CollisionCircle(float radius)
CollisionCircle(float centerX, float centerY, float radius)
CollisionCircle(int id, float radius)
CollisionCircle(int id, float centerX, float centerY, float radius)

Method Summary

Modifier and Type	Method and Description
<T extends Positionable> void	addPostionChangeListener(PositionChangeListener<T> listener) Adds a Positionable to be notified of coordinate changes
<T extends Sizeable> void	addSizeChangeListener(SizeChangeListener<T> listener) Adds a SizeChangeListener to be notified of size changes
protected void	clearPositionChangeListeners()
protected void	clearSizeChangeListeners()
void	dispose() Releases this Shape back to the Geometry pool (if it was created from the pool)
boolean	equals(java.lang.Object o)
void	forceTo(float x, float y) Sets the current x and y coordinate to the specified x and y and force updates the rendering position to match
void	forceTo(float x, float y, float width, float height) Sets the current x, y, width and height and force updates the rendering state to match
int	getId() Returns the unique id of this object
int	getRenderHeight() Returns the render height of this object
int	getRenderRadius()
int	getRenderWidth() Returns the render width of this object
int	getRenderX() Returns the render x coordinate of this object
int	getRenderY() Returns the render y coordinate of this object
int	hashCode()
void	interpolate(float alpha) Called during interpolate phase each interpolate()
protected void	notifyPositionChangeListeners()
protected void	notifySizeChangeListeners()
void	positionChanged(CollisionCircle moved)
void	preUpdate() Called at the start of each update() 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
<T extends Sizeable> void	removeSizeChangeListener(SizeChangeListener<T> listener) Removes a SizeChangeListener to stop it being notified of size changes
void	sizeChanged(CollisionCircle changed)
java.lang.String	toString()

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

contains, contains, contains, contains, contains, contains, copy, draw, edgeIterator, fill, getBoundingBox, getCenterX, getCenterY, getDistanceFromCenter, getDistanceFromCenter, getDistanceTo, getHeight, getMaxX, getMaxY, getMinX, getMinY, getNumberOfSides, getPolygon, getRadius, getRotation, getWidth, getX, getY, intersects, intersects, intersects, intersectsLineSegment, intersectsLineSegment, isCircle, lerp, rotate, rotateAround, scale, set, setCenter, setCenterX, setCenterY, setRadius, setRotation, setRotationAround, setX, setXY, setY, translate

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

add, clearPositionListeners, clearPositionListeners, clearSizeListeners, clearSizeListeners, getDistanceTo, intersects, moveTowards, moveTowards, notifyPositionListeners, notifyPositionListeners, notifySizeListeners, notifySizeListeners, removePositionListener, removePositionListener, removeSizeListener, removeSizeListener, setRotationAround, subtract

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.mini2Dx.core.geom.Sizeable

contains, contains, contains, getCenterX, getCenterY, getHeight, getMaxX, getMaxY, getMinX, getMinY, getNumberOfSides, getPolygon, getWidth, intersects, intersects, intersectsLineSegment, intersectsLineSegment, isCircle, scale, setCenter, setCenterX, setCenterY, setRadius

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

getDistanceTo, getDistanceTo, getX, getY, moveTowards, moveTowards, setX, setXY, setY

Constructor Detail

CollisionCircle

public CollisionCircle(float radius)

CollisionCircle

public CollisionCircle(int id,
                       float radius)

CollisionCircle

public CollisionCircle(float centerX,
                       float centerY,
                       float radius)

CollisionCircle

public CollisionCircle(int id,
                       float centerX,
                       float centerY,
                       float radius)

Method Detail

dispose

public void dispose()

Description copied from class: Shape

Releases this Shape back to the Geometry pool (if it was created from the pool)

Overrides:

dispose in class Circle

preUpdate

public void preUpdate()

Description copied from interface: CollisionObject

Called at the start of each update() before any changes are made to this object

Specified by:

preUpdate in interface CollisionObject

Specified by:

preUpdate in interface Interpolatable

interpolate

public void interpolate(float alpha)

Description copied from interface: CollisionObject

Called during interpolate phase each interpolate()

Specified by:

interpolate in interface CollisionObject

Specified by:

interpolate in interface Interpolatable

Parameters:

alpha - The alpha value between 0.0 and 1.0

forceTo

public void forceTo(float x,
                    float y,
                    float width,
                    float height)

Description copied from interface: CollisionArea

Sets the current x, y, width and height and force updates the rendering state to match

Specified by:

forceTo in interface CollisionArea

Parameters:

x - The x coordinate to set

y - The y coordinate to set

forceTo

public void forceTo(float x,
                    float y)

Description copied from interface: CollisionObject

Sets the current x and y coordinate to the specified x and y and force updates the rendering position to match

Specified by:

forceTo in interface CollisionObject

Parameters:

x - The x coordinate to set

y - The y coordinate to set

getId

public int getId()

Description copied from interface: CollisionObject

Returns the unique id of this object

Specified by:

getId in interface CollisionObject

Returns:

getRenderX

public int getRenderX()

Description copied from interface: CollisionObject

Returns the render x coordinate of this object

Specified by:

getRenderX in interface CollisionObject

Returns:

getRenderY

public int getRenderY()

Description copied from interface: CollisionObject

Returns the render y coordinate of this object

Specified by:

getRenderY in interface CollisionObject

Returns:

getRenderWidth

public int getRenderWidth()

Description copied from interface: CollisionArea

Returns the render width of this object

Specified by:

getRenderWidth in interface CollisionArea

Returns:

getRenderHeight

public int getRenderHeight()

Description copied from interface: CollisionArea

Returns the render height of this object

Specified by:

getRenderHeight in interface CollisionArea

Returns:

getRenderRadius

public int getRenderRadius()

positionChanged

public void positionChanged(CollisionCircle moved)

Specified by:

positionChanged in interface PositionChangeListener<CollisionCircle>

sizeChanged

public void sizeChanged(CollisionCircle changed)

Specified by:

sizeChanged in interface SizeChangeListener<CollisionCircle>

addPostionChangeListener

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

Description copied from interface: Positionable

Adds a Positionable to be notified of coordinate changes

Specified by:

addPostionChangeListener in interface Positionable

Overrides:

addPostionChangeListener in class Shape

Parameters:

listener - The PositionChangeListener to add

See Also:

Positionable.addPostionChangeListener(PositionChangeListener)

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

Overrides:

removePositionChangeListener in class Shape

Parameters:

listener - The PositionChangeListener to remove

See Also:

Positionable.removePositionChangeListener(PositionChangeListener)

addSizeChangeListener

public <T extends Sizeable> void addSizeChangeListener(SizeChangeListener<T> listener)

Description copied from interface: Sizeable

Adds a SizeChangeListener to be notified of size changes

Specified by:

addSizeChangeListener in interface Sizeable

Overrides:

addSizeChangeListener in class Shape

Parameters:

listener - The SizeChangeListener to add

removeSizeChangeListener

public <T extends Sizeable> void removeSizeChangeListener(SizeChangeListener<T> listener)

Description copied from interface: Sizeable

Removes a SizeChangeListener to stop it being notified of size changes

Specified by:

removeSizeChangeListener in interface Sizeable

Overrides:

removeSizeChangeListener in class Shape

Parameters:

listener - The SizeChangeListener to remove

notifyPositionChangeListeners

protected void notifyPositionChangeListeners()

Overrides:

notifyPositionChangeListeners in class Shape

clearPositionChangeListeners

protected void clearPositionChangeListeners()

Overrides:

clearPositionChangeListeners in class Shape

notifySizeChangeListeners

protected void notifySizeChangeListeners()

Overrides:

notifySizeChangeListeners in class Shape

clearSizeChangeListeners

protected void clearSizeChangeListeners()

Overrides:

clearSizeChangeListeners in class Shape

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class Circle

hashCode

public int hashCode()

Overrides:

hashCode in class Circle

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object