SlipStream Class Reference

Public Member Functions
	SlipStream (AbstractKart *kart)
	Creates the slip stream object.
	~SlipStream ()
	Removes the node from the scene graph.
void	reset ()
	Called at re-start of a race.
void	update (int ticks)
	Update, called once per timestep.
bool	isSlipstreamReady () const
	Returns true if enough slipstream credits have been accumulated to get a boost when leaving the slipstream area.
void	updateSpeedIncrease ()
const Quad &	getSlipstreamQuad () const
	Returns the quad in which slipstreaming is effective for this kart.
const AbstractKart *	getSlipstreamTarget () const
	Returns the kart from which slipstream is 'collected'.
bool	inUse () const
	Returns if slipstream is being used.

Private Types
enum	{ SS_NONE , SS_COLLECT }
	Slipstream mode: either nothing happening, or the kart is collecting 'slipstream credits'. More...

Private Member Functions
SP::SPMesh *	createMeshSP (unsigned material_id, bool bonus_mesh)
	Creates the mesh for the slipstream effect.
scene::IAnimatedMesh *	createMesh (unsigned material_id, bool bonus_mesh)
	Creates the mesh for the slipstream effect.
void	setDebugColor (const video::SColor &color, bool inner)
	Sets the color of the debug mesh (which shows the area in which slipstream can be accumulated).
void	updateQuad ()
	UpdateQuad.
void	updateSlipstreamingTextures (float f, const AbstractKart *kart)
void	updateBonusTexture ()
void	hideAllNodes ()

Private Attributes
AbstractKart *	m_kart
	The kart to which this smoke belongs.
MovingTexture *	m_moving
	The moving texture for the normal node.
MovingTexture *	m_moving_fast
	The moving texture for the fast node.
MovingTexture *	m_moving_bonus
	The moving texture for the fast node.
scene::ISceneNode *	m_node
	The scene node.
scene::ISceneNode *	m_node_fast
	The fast scene node.
scene::ISceneNode *	m_bonus_node
	The node used when the bonus is active.
std::shared_ptr< SP::SPDynamicDrawCall >	m_debug_dc
	For debugging: a simple quad to display where slipstream works.
std::shared_ptr< SP::SPDynamicDrawCall >	m_debug_dc2
	For debugging: a simple quad to display where inner slipstream works.
float	m_length
	The length of the slipstream cylinder.
float	m_slipstream_time
	The time a kart was in slipstream.
float	m_bonus_time
	The remaining active time bonus.
bool	m_bonus_active
	This bool is used to know the first time we're going out of the slipstreaming area.
int	m_current_target_id
	Used to trigger automatically the slipstreaming bonus.
int	m_previous_target_id
int	m_speed_increase_ticks
int	m_speed_increase_duration
enum SlipStream:: { ... }	m_slipstream_mode
	Slipstream mode: either nothing happening, or the kart is collecting 'slipstream credits'.
Quad *	m_slipstream_quad
	This is slipstream area if the kart is at 0,0,0 without rotation.
Quad *	m_slipstream_inner_quad
	This is the inner slipstream area if the kart is at 0,0,0 without rotation.
Quad *	m_slipstream_outer_quad
	This is the outer slipstream area if the kart is at 0,0,0 without rotation.
AbstractKart *	m_target_kart
	The kart from which this kart gets slipstream.

Member Enumeration Documentation

anonymous enum

anonymous enum

private

Slipstream mode: either nothing happening, or the kart is collecting 'slipstream credits'.

Credits can be accumulated while the bonus is used

Constructor & Destructor Documentation

SlipStream()

SlipStream::SlipStream

(

AbstractKart *

kart

)

Creates the slip stream object.

Parameters

kart	Pointer to the kart to which the slip stream belongs to.

Member Function Documentation

createMesh()

scene::IAnimatedMesh * SlipStream::createMesh ( unsigned  material_id, bool  bonus_mesh  )

private

Creates the mesh for the slipstream effect.

This function creates a first a series of circles (with a certain number of vertices each and distance from each other. Then it will create the triangles and add texture coordniates.

Parameters

material_id

The material to use.

createMeshSP()

SP::SPMesh * SlipStream::createMeshSP ( unsigned  material_id, bool  bonus_mesh  )

private

Creates the mesh for the slipstream effect.

This function creates a first a series of circles (with a certain number of vertices each and distance from each other. Then it will create the triangles and add texture coordniates.

Parameters

material_id

The material to use.

setDebugColor()

void SlipStream::setDebugColor ( const video::SColor &  color, bool  inner  )

private

Sets the color of the debug mesh (which shows the area in which slipstream can be accumulated).

Color codes: black: kart too slow red: not inside of slipstream area green: slipstream is being accumulated.

Parameters

inner

: bool to know if we apply the color to the inner quad or to the main one

update()

void SlipStream::update

(

int

ticks

)

Update, called once per timestep.

Parameters

dt	Time step size.

Member Data Documentation

m_length

float SlipStream::m_length

private

The length of the slipstream cylinder.

This is used to scale the actual scene node correctly. Shared between node and node_fast

enum { ... } SlipStream::m_slipstream_mode

Slipstream mode: either nothing happening, or the kart is collecting 'slipstream credits'.

Credits can be accumulated while the bonus is used

m_slipstream_outer_quad

Quad* SlipStream::m_slipstream_outer_quad

private

This is the outer slipstream area if the kart is at 0,0,0 without rotation.

No slipstream time is accumulated there, but it's lost slower

m_target_kart

AbstractKart* SlipStream::m_target_kart

private

The kart from which this kart gets slipstream.

Used by the AI to overtake the right kart.

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

• graphics/slip_stream.hpp
• graphics/slip_stream.cpp