CelestialBody Class Reference

Represents a celestial body.

#include <CelestialBody.hpp>

Public Member Functions
	CelestialBody (bonobo::mesh_data const &shape, GLuint const *program, GLuint diffuse_texture_id)
	Default constructor for a celestial body.
glm::mat4	render (std::chrono::microseconds elapsed_time, glm::mat4 const &view_projection, glm::mat4 const &parent_transform=glm::mat4(1.0f), bool show_basis=false)
	Render this celestial body.
void	add_child (CelestialBody *child)
	Mark another celestial body as being “attached” to the current one.
std::vector< CelestialBody * > const &	get_children () const
	Return all the children of this celestial body.
void	set_orbit (OrbitConfiguration const &configuration)
	Configure the orbit parameters for this celestial body.
void	set_scale (glm::vec3 const &scale)
	Configure the scale of this celestial body.
void	set_spin (SpinConfiguration const &configuration)
	Configure the spin parameters for this celestial body.
void	set_ring (bonobo::mesh_data const &shape, GLuint const *program, GLuint diffuse_texture_id, glm::vec2 const &scale=glm::vec2(1.0f))
	Default constructor for a celestial body.

Private Attributes
struct {
Node   node
struct {
float   radius {0.0f}
	Distance in metres between its centre of gravity and the centre of the orbit. More...
float   inclination {0.0f}
	Angle in radians between the its orbital axis and its parent's rotational axis. More...
float   speed {0.0f}
	Rotation speed in radians per second. More...
float   rotation_angle {0.0f}
	How much has it rotated around its orbital axis; in radians. More...
}   orbit
glm::vec3   scale {1.0f}
struct {
float   axial_tilt {0.0f}
	Angle in radians between the its rotational and orbital axis. More...
float   speed {0.0f}
	Rotation speed in radians per second. More...
float   rotation_angle {0.0f}
	How much has it rotated around its rotational axis; in radians. More...
}   spin
}	_body
struct {
Node   node
glm::vec2   scale {1.0f}
bool   is_set {false}
}	_ring
std::vector< CelestialBody * >	_children

Constructor & Destructor Documentation

CelestialBody()

CelestialBody::CelestialBody	(	bonobo::mesh_data const &	shape,
		GLuint const *	program,
		GLuint	diffuse_texture_id
	)

Parameters

[in]	shape	Information about the geometry used to model the celestial body (more details about it in assignment 2
[in]	program	Shader program used to render the celestial body (more details about it in assignment~3)
[in]	diffuse_texture_id	Identifier of the diffuse texture used (more details about it also in assignment~3)

Member Function Documentation

add_child()

void CelestialBody::add_child

(

CelestialBody *

child

)

get_children()

std::vector< CelestialBody * > const & CelestialBody::get_children

(

)

const

render()

glm::mat4 CelestialBody::render	(	std::chrono::microseconds	elapsed_time,
		glm::mat4 const &	view_projection,
		glm::mat4 const &	parent_transform = glm::mat4(1.0f),
		bool	show_basis = false
	)

Parameters

[in]	elapsed_time	Amount of time (in microseconds) between two frames
[in]	view_projection	Matrix transforming from world space to clip space
[in]	parent_transform	Matrix transforming from the parent’s local space to world space
[in]	show_basis	Show a 3D basis transformed by the world matrix of this celestial body

Returns

Matrix transforming from this celestial body’s local space to world space

set_orbit()

void CelestialBody::set_orbit

(

OrbitConfiguration const &

configuration

)

set_ring()

void CelestialBody::set_ring	(	bonobo::mesh_data const &	shape,
		GLuint const *	program,
		GLuint	diffuse_texture_id,
		glm::vec2 const &	scale = glm::vec2(1.0f)
	)

Parameters

[in]	shape	Shape used for the rings.
[in]	program	Identifier of the shader program used to render the ring
[in]	diffuse_texture_id	Identifier of the diffuse texture used by the ring
[in]	scale	How much to scale the ring along the x- and y-axis, assuming you are looking at it from above

set_scale()

void CelestialBody::set_scale

(

glm::vec3 const &

scale

)

set_spin()

void CelestialBody::set_spin

(

SpinConfiguration const &

configuration

)

Member Data Documentation

[struct]

struct { ... } CelestialBody::_body

_children

std::vector<CelestialBody*> CelestialBody::_children

private

[struct]

struct { ... } CelestialBody::_ring

axial_tilt

float CelestialBody::axial_tilt {0.0f}

inclination

float CelestialBody::inclination {0.0f}

is_set

bool CelestialBody::is_set {false}

node

Node CelestialBody::node

[struct]

struct { ... } CelestialBody::orbit

radius

float CelestialBody::radius {0.0f}

rotation_angle

float CelestialBody::rotation_angle {0.0f}

How much has it rotated around its rotational axis; in radians.

scale [1/2]

glm::vec3 CelestialBody::scale {1.0f}

scale [2/2]

glm::vec2 CelestialBody::scale {1.0f}

speed

float CelestialBody::speed {0.0f}

[struct]

struct { ... } CelestialBody::spin

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

• src/EDAF80/CelestialBody.hpp
• src/EDAF80/CelestialBody.cpp