RubberBand Class Reference

This class is used together with the pluger to display a rubber band from the shooting kart to the plunger. More...

#include <rubber_band.hpp>

Inheritance diagram for RubberBand:

Public Types
enum	RubberBandTo { RB_TO_PLUNGER = 0 , RB_TO_KART , RB_TO_TRACK }

Public Member Functions
	RubberBand (Plunger *plunger, AbstractKart *kart)
	RubberBand constructor.
void	reset ()
void	updateGraphics (float dt)
void	update (int ticks)
	Updates the rubber band.
void	hit (AbstractKart *kart_hit, const Vec3 *track_xyz=NULL)
	The plunger hit a kart or the track.
uint8_t	get8BitState () const
void	set8BitState (uint8_t bit_state)
void	remove ()

Private Member Functions
void	checkForHit (const Vec3 &k, const Vec3 &p)
	Uses a raycast to see if anything has hit the rubber band.
void	updatePosition ()
	Updates the position of the rubber band.

Private Attributes
Vec3	m_hit_position
	If rubber band is attached to track, the coordinates.
Plunger *	m_plunger
	The plunger the rubber band is attached to.
AbstractKart *	m_owner
	The kart who shot this plunger.
RubberBandTo	m_attached_state
std::shared_ptr< SP::SPDynamicDrawCall >	m_dy_dc
	The dynamic draw call of the rubber band.
irr::scene::IMeshSceneNode *	m_node
AbstractKart *	m_hit_kart
	The kart a plunger might have hit.
Vec3	m_end_position
	Stores the end of the rubber band (i.e.

Detailed Description

This class is used together with the pluger to display a rubber band from the shooting kart to the plunger.

Member Enumeration Documentation

RubberBandTo

enum RubberBand::RubberBandTo

Enumerator
RB_TO_PLUNGER	Rubber band is attached to plunger.
RB_TO_KART	Rubber band is attached to a kart hit.
RB_TO_TRACK	Rubber band is attached to track.

Constructor & Destructor Documentation

RubberBand()

RubberBand::RubberBand	(	Plunger *	plunger,
		AbstractKart *	kart
	)

RubberBand constructor.

It creates a simple quad and attaches it to the root(!) of the graph. It's easier this way to get the right coordinates than attaching it to the plunger or kart, and trying to find the other coordinate.

Parameters

plunger	Pointer to the plunger (non const, since the rubber band can trigger an explosion)
kart	Reference to the kart.

Member Function Documentation

checkForHit()

void RubberBand::checkForHit ( const Vec3 &  k, const Vec3 &  p  )

private

Uses a raycast to see if anything has hit the rubber band.

Parameters

k	Position of the kart = one end of the rubber band
p	Position of the plunger = other end of the rubber band.

hit()

void RubberBand::hit	(	AbstractKart *	kart_hit,
		const Vec3 *	track_xyz = NULL
	)

The plunger hit a kart or the track.

Parameters

kart_hit	The kart hit, or NULL if the track was hit.
track	_xyz The coordinated where the track was hit (NULL if a kart was hit.

update()

void RubberBand::update

(

int

ticks

)

Updates the rubber band.

It takes the new position of the kart and the plunger, and sets the quad representing the rubber band appropriately. It then casts a ray along the rubber band to detect if anything is hit. If so, an explosion is triggered.

Parameters

dt	Time step size.

updatePosition()

void RubberBand::updatePosition ( )

private

Updates the position of the rubber band.

It especially sets the end position of the rubber band, i.e. the side attached to the plunger, track, or kart hit.

Member Data Documentation

m_end_position

Vec3 RubberBand::m_end_position

private

Stores the end of the rubber band (i.e.

the side attached to the plunger.

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

• items/rubber_band.hpp
• items/rubber_band.cpp