PhysicsObject Class Reference

Physics object class. More...

#include <PhysicsObject.h>

List of all members.

Public Member Functions
	PhysicsObject ()
	PhysicsObject (CIwFVec2 position, float gravityScale, float radius, float mass)
	~PhysicsObject ()
CIwFVec2	GetPosition ()
void	SetPosition (CIwFVec2 position)
void	Update (double deltaTime)
float	GetRadius ()
float	GetGravityScale ()
float	GetMass ()
CIwFVec2	GetVelocity ()
void	SetVelocity (CIwFVec2 newVelocity)
void	SetGravityScale (float scale)
int	GetNumCollisions ()
void	IncrementNumCollisions ()
float	GetBounciness ()
float	GetBottom ()
void	SetRadius (float radius)
CIwFVec2	GetNextPosition (double deltaTime)
Protected Attributes
CIwFVec2	m_position
	Position of the centre of the physics object.
CIwFVec2	m_velocity
	Velocity of the physics object.
CIwFVec2	m_gravity
	Force of gravity that will affect this physics object.
CIwFVec2	m_acceleration
	Current acceleration of the physics object.
float	m_gravityScale
	Gravity scale for the physics object.
float	m_radius
	Radius of the physics object.
float	m_mass
	Mass of the physics object.
int	m_numCollisions
	How many times has this physics object collided with the grid?
float	m_bounciness
	How bouncy is this physics object?

---

Detailed Description

Physics object class.

A circular physics for discs and the top of the grid. Will fall under gravity and act like a projectile if Update() is called.

---

Constructor & Destructor Documentation

PhysicsObject::PhysicsObject

(

)

[inline]

Default constructor.

Create a new physics object.

PhysicsObject::PhysicsObject	(	CIwFVec2	position,
		float	gravityScale,
		float	radius,
		float	mass
	)

Constructor.

Create a new physics object at a given position with attributes.

Parameters:

[in]	position	Position of the centre of the physicsObject.
[in]	gravityScale	Scale for how much gravity will affect this physicsObject.
[in]	radius	Radius of this physics object.
[in]	mass	Mass of this physics object.

PhysicsObject::~PhysicsObject

(

)

Destructor.

Destroy the physics object and release all associated memory.

---

Member Function Documentation

float PhysicsObject::GetBottom

(

)

Get bottom.

Get the y position of the bottom of the physics object.

Returns:

float position.

float PhysicsObject::GetBounciness

(

)

Get bounciness.

Get how bouncy this physics object is. Affects collision response.

Returns:

float bounciness.

float PhysicsObject::GetGravityScale

(

)

Get gravity scale.

Get the gravity scale of the physics object.

Returns:

float gravity scale of the physics object.

float PhysicsObject::GetMass

(

)

Get mass.

Get the mass of the physics object.

Returns:

float mass of the physics object.

CIwFVec2 PhysicsObject::GetNextPosition

(

double

deltaTime

)

Get next position.

Get the position of the centre of the physics object at the next update. Should be used to prevent collision tunnelling.

Parameters:

[in]

deltaTime

Time since the last update.

Returns:

Vector2 position.

int PhysicsObject::GetNumCollisions

(

)

Get collision count.

Get the number of times this physics object has collided with the grid.

Returns:

int number of collisions.

CIwFVec2 PhysicsObject::GetPosition

(

)

Get position.

Get the centre position of the physics object.

Returns:

Vector2 position.

float PhysicsObject::GetRadius

(

)

Get radius.

Get the radius of the physics object.

Returns:

float radius of the physics object.

CIwFVec2 PhysicsObject::GetVelocity

(

)

Get velocity.

Get the current velocity of the physics object.

Returns:

Vector2 velocity of the physics object (x,y).

void PhysicsObject::IncrementNumCollisions

(

)

Increment collision count.

Increase the number of times this physics object has collided with the grid by one.

void PhysicsObject::SetGravityScale

(

float

scale

)

Set gravity scale.

Set the gravity scale of the physics object.

Parameters:

[in]

scale

New gravity scale of the physics object (x,y).

void PhysicsObject::SetPosition

(

CIwFVec2

position

)

Set position.

Set the centre position of the physics object.

Parameters:

[in]

position

The new position.

void PhysicsObject::SetRadius

(

float

radius

)

Set radius.

Set the radius of the physics object.

Parameters:

[in]

radius

New radius.

void PhysicsObject::SetVelocity

(

CIwFVec2

newVelocity

)

Set velocity.

Set the velocity of the physics object.

Parameters:

[in]

newVelocity

New velocity of the physics object (x,y).

void PhysicsObject::Update

(

double

deltaTime

)

Update.

Update the disc.

Parameters:

[in]

deltaTime

Time since the last update.

---

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

• C:/Marmalade/7.4/examples/GameTutorial/CPP/Stage2/source/PhysicsObject.h
• C:/Marmalade/7.4/examples/GameTutorial/CPP/Stage2/source/PhysicsObject.cpp