#include <CUPolygonObstacle.h>

Inheritance diagram for PolygonObstacle:

Public Member Functions
const Size &	getSize () const

void	setSize (const Size &value)

void	setSize (float width, float height)

float	getWidth () const

void	setWidth (float value)

float	getHeight () const

void	setHeight (float value)

const Vec2 &	getAnchor () const

void	setAnchor (const Vec2 &value)

void	setAnchor (float x, float y)

const Poly2 &	getPolygon () const

void	setPolygon (const Poly2 &)

virtual void	createFixtures () override

virtual void	releaseFixtures () override

CC_CONSTRUCTOR_ACCESS	_shapes (nullptr)

CC_CONSTRUCTOR_ACCESS	_geoms (nullptr)

virtual	~PolygonObstacle ()

virtual bool	init (const Poly2 &poly)

virtual bool	init (const Poly2 &poly, const Vec2 &anchor)

Public Member Functions inherited from SimpleObstacle
virtual b2BodyType	getBodyType () const override

virtual void	setBodyType (b2BodyType value) override

virtual Vec2	getPosition () const override

virtual void	setPosition (const Vec2 &value) override

virtual void	setPosition (float x, float y) override

virtual float	getX () const override

virtual void	setX (float value) override

virtual float	getY () const override

virtual void	setY (float value) override

virtual float	getAngle () const override

virtual void	setAngle (float value) override

virtual Vec2	getLinearVelocity () const override

virtual void	setLinearVelocity (const Vec2 &value) override

virtual void	setLinearVelocity (float x, float y) override

virtual float	getVX () const override

virtual void	setVX (float value) override

virtual float	getVY () const override

virtual void	setVY (float value) override

virtual float	getAngularVelocity () const override

virtual void	setAngularVelocity (float value) override

virtual bool	isActive () const override

virtual void	setActive (bool value) override

virtual bool	isAwake () const override

virtual void	setAwake (bool value) override

virtual bool	isSleepingAllowed () const override

virtual void	setSleepingAllowed (bool value) override

virtual bool	isBullet () const override

virtual void	setBullet (bool value) override

virtual bool	isFixedRotation () const override

virtual void	setFixedRotation (bool value) override

virtual float	getGravityScale () const override

virtual void	setGravityScale (float value) override

virtual float	getLinearDamping () const override

virtual void	setLinearDamping (float value) override

virtual float	getAngularDamping () const override

virtual void	setAngularDamping (float value) override

virtual void	setDensity (float value) override

virtual void	setFriction (float value) override

virtual void	setRestitution (float value) override

virtual void	setSensor (bool value) override

virtual void	setFilterData (b2Filter value) override

virtual Vec2	getCentroid () const override

virtual void	setCentroid (const Vec2 &value) override

virtual void	setCentroid (float x, float y) override

virtual float	getInertia () const override

virtual void	setInertia (float value) override

virtual float	getMass () const override

virtual void	setMass (float value) override

virtual void	resetMass () override

virtual b2Body *	getBody () const override

virtual bool	activatePhysics (b2World &world) override

virtual void	deactivatePhysics (b2World &world) override

virtual void	update (float delta) override

int	getPositionSnap ()

void	setPositionSnap (unsigned int snap)

int	getAngleSnap ()

void	setAngleSnap (unsigned int snap)

virtual void	positionSceneNode () override

virtual void	positionDebugNode () override

CC_CONSTRUCTOR_ACCESS	_body (nullptr)

virtual	~SimpleObstacle ()

Public Member Functions inherited from Obstacle
void	setBodyState (const b2Body &body)

float	getDensity () const

float	getFriction () const

float	getRestitution () const

bool	isSensor () const

b2Filter	getFilterData () const

bool	isRemoved () const

void	markRemoved (bool value)

bool	isDirty () const

void	markDirty (bool value)

const Vec2 &	getDrawScale () const

virtual void	setDrawScale (const Vec2 &value)

virtual void	setDrawScale (float x, float y)

Node *	getSceneNode () const

void	setSceneNode (Node *node)

WireNode *	getDebugNode () const

void	setDebugNode (WireNode *node)

string	getName () const

void	setName (string value)

string	toString () const

virtual	~Obstacle ()

virtual bool	init ()

virtual bool	init (const Vec2 &vec)

Static Public Member Functions
static PolygonObstacle *	create (const Poly2 &poly)

static PolygonObstacle *	create (const Poly2 &poly, const Vec2 &anchor)

Public Attributes
CC_CONSTRUCTOR_ACCESS	__pad0__: PolygonObstacle(void) : SimpleObstacle()

Public Attributes inherited from SimpleObstacle
CC_CONSTRUCTOR_ACCESS	__pad0__: SimpleObstacle() : Obstacle()

Public Attributes inherited from Obstacle
CC_CONSTRUCTOR_ACCESS	__pad0__: Obstacle(void)

Protected Member Functions
void	resize (const Size &size)

virtual void	resetSceneNode () override

virtual void	resetDebugNode () override

void	resetShapes ()

Protected Attributes
Poly2	_polygon

b2PolygonShape *	_shapes

b2Fixture **	_geoms

Vec2	_anchor

int	_fixCount

Protected Attributes inherited from SimpleObstacle
b2Body *	_body

int	_posSnap

unsigned long	_posFact

int	_angSnap

unsigned long	_angFact

Protected Attributes inherited from Obstacle
b2BodyDef	_bodyinfo

b2FixtureDef	_fixture

b2MassData	_massdata

Vec2	_drawScale

bool	_masseffect

Node *	_node

WireNode *	_debug

string	_tag

Detailed Description

Arbitrary polygonal-shaped model to support collisions.

The polygon can be any one that is representable by a Poly2 object. That means that it does not need to be convex, but it cannot have holes or self intersections.

Constructor & Destructor Documentation

PolygonObstacle::~PolygonObstacle ( )

virtual

Deletes this physics object and all of its resources.

A non-default destructor is necessary since we must release all the fixture pointers for the polygons.

Member Function Documentation

NS_CC_BEGIN PolygonObstacle * PolygonObstacle::create ( const Poly2 & poly )

static

Creates a (not necessarily convex) polygon

The anchor point (the rotational center) of the polygon is at the center of the polygons bounding box.

Parameters

poly	The polygon vertices

Returns: An autoreleased physics object

PolygonObstacle * PolygonObstacle::create	(	const Poly2 &	poly,
		const Vec2 &	anchor
	)

static

Creates a (not necessarily convex) polygon

The anchor point (the rotational center) of the polygon is specified as a ratio of the bounding box. An anchor point of (0,0) is the bottom left of the bounding box. An anchor point of (1,1) is the top right of the bounding box. The anchor point does not need to be contained with the bounding box.

Parameters

poly	The polygon vertices
anchor	The rotational center of the polygon

Returns: An autoreleased physics object

void PolygonObstacle::createFixtures ( )

overridevirtual

Create new fixtures for this body, defining the shape

This is the primary method to override for custom physics objects

Reimplemented from SimpleObstacle.

const Vec2& PolygonObstacle::getAnchor ( ) const

inline

Returns the rotational center of this polygon

The anchor point of the polygon is specified as ratio of the bounding box. An anchor point of (0,0) is the bottom left of the bounding box. An anchor point of (1,1) is the top right of the bounding box. The anchorpoint does not need to be contained with the bounding box.

Returns: the rotational center of this polygon

float PolygonObstacle::getHeight ( ) const

inline

Returns the bounding box height

Returns: the bounding box height

const Poly2& PolygonObstacle::getPolygon ( ) const

inline

Returns the polygon defining this object

Returns: the polygon defining this object

const Size& PolygonObstacle::getSize ( ) const

inline

Returns the dimensions of the bounding box

Returns: the dimensions of the bounding box

float PolygonObstacle::getWidth ( ) const

inline

Returns the bounding box width

Returns: the bounding box width

virtual bool PolygonObstacle::init ( const Poly2 & poly )

inlinevirtual

Initializes a (not necessarily convex) polygon

The anchor point (the rotational center) of the polygon is at the center of the polygons bounding box.

Parameters

poly	The polygon vertices

Returns: true if the obstacle is initialized properly, false otherwise.

bool PolygonObstacle::init	(	const Poly2 &	poly,
		const Vec2 &	anchor
	)

virtual

Initializes a (not necessarily convex) polygon

The anchor point (the rotational center) of the polygon is specified as a ratio of the bounding box. An anchor point of (0,0) is the bottom left of the bounding box. An anchor point of (1,1) is the top right of the bounding box. The anchor point does not need to be contained with the bounding box.

Parameters

poly	The polygon vertices
anchor	The rotational center of the polygon

Returns: true if the obstacle is initialized properly, false otherwise.

void PolygonObstacle::releaseFixtures ( )

overridevirtual

Release the fixtures for this body, reseting the shape

This is the primary method to override for custom physics objects

Reimplemented from SimpleObstacle.

void PolygonObstacle::resetDebugNode ( )

overrideprotectedvirtual

Redraws the outline of the physics fixtures to the debug node

The debug node is use to outline the fixtures attached to this object. This is very useful when the fixtures have a very different shape than the texture (e.g. a circular shape attached to a square texture).

Redraws the outline of the physics fixtures to the debug node

The debug node is use to outline the fixtures attached to this object. This is very useful when the fixtures have a very different shape than the texture (e.g. a circular shape attached to a square texture).

Unfortunately, the current implementation is very inefficient. Cocos2d does not batch drawnode commands like it does Sprites or PolygonSprites. Therefore, every distinct DrawNode is a distinct OpenGL call. This can really hurt framerate when debugging mode is on. Ideally, we would refactor this so that we only draw to a single, master draw node. However, this means that we would have to handle our own vertex transformations, instead of relying on the transforms in the scene graph.

Reimplemented from Obstacle.

void PolygonObstacle::resetSceneNode ( )

overrideprotectedvirtual

Performs any necessary additions to the scene graph node.

This method is necessary for custom physics objects that are composed of multiple scene graph nodes.

Reimplemented from Obstacle.

void PolygonObstacle::resetShapes ( )

protected

Recreates the shape objects attached to this polygon.

This must be called whenever the polygon is resized.

void PolygonObstacle::resize ( const Size & size )

protected

Resets the polygon vertices in the shape to match the dimension.

This is an internal method and it does not mark the physics object as dirty.

Parameters

size	The new dimension (width and height)

void PolygonObstacle::setAnchor ( const Vec2 & value )

inline

Sets the rotational center of this polygon

The anchor point of the polygon is specified as ratio of the bounding box. An anchor point of (0,0) is the bottom left of the bounding box. An anchor point of (1,1) is the top right of the bounding box. The anchorpoint does not need to be contained with the bounding box.

Parameters

value the rotational center of this polygon

void PolygonObstacle::setAnchor	(	float	x,
		float	y
	)

Sets the rotational center of this polygon

The anchor point of the polygon is specified as ratio of the bounding box. An anchor point of (0,0) is the bottom left of the bounding box. An anchor point of (1,1) is the top right of the bounding box. The anchorpoint does not need to be contained with the bounding box.

Parameters

x	the x-coordinate of the rotational center
y	the y-coordinate of the rotational center

void PolygonObstacle::setHeight ( float value )

inline

Sets the bounding box height

The vertices are rescaled according to their vertex origin. This change cannot happen immediately. It must wait until the next update is called. The current anchor point will be preserved.

Parameters

value the bounding box height

void PolygonObstacle::setPolygon ( const Poly2 & poly )

Sets the polygon defining this object

This change cannot happen immediately. It must wait until the next update is called. The current anchor point will be preserved.

Parameters

value the polygon defining this object

Sets the polygon defining this object

This change cannot happen immediately. It must wait until the next update is called.

Parameters

value the polygon defining this object

void PolygonObstacle::setSize ( const Size & value )

inline

Sets the dimensions of the bounding box

The vertices are rescaled according to their vertex origin. This change cannot happen immediately. It must wait until the next update is called. The current anchor point will be preserved.

Parameters

value the dimensions of the bounding box

void PolygonObstacle::setSize	(	float	width,
		float	height
	)

inline

Sets the dimensions of this box

Parameters

width	The width of this box
height	The height of this box

void PolygonObstacle::setWidth ( float value )

inline

Sets the bounding box width

The vertices are rescaled according to their vertex origin. This change cannot happen immediately. It must wait until the next update is called. The current anchor point will be preserved.

Parameters

value the bounding box width

Member Data Documentation

Vec2 PolygonObstacle::_anchor

protected

Anchor point to synchronize with the scene graph

int PolygonObstacle::_fixCount

protected

In case the number of polygons changes

b2Fixture** PolygonObstacle::_geoms

protected

A cache value for the fixtures (for resizing)

Poly2 PolygonObstacle::_polygon

protected

The polygon vertices (for resizing)

b2PolygonShape* PolygonObstacle::_shapes

protected

Shape information for this physics object

The documentation for this class was generated from the following files:

/Users/wmwhite/Developer/cocos2d-cornell/cocos/cornell/CUPolygonObstacle.h
/Users/wmwhite/Developer/cocos2d-cornell/cocos/cornell/CUPolygonObstacle.cpp

Public Member Functions

Static Public Member Functions

Public Attributes

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation