Player Class Reference

Player state and animations. More...

#include <Player.hpp>

Classes
struct	PathPoint
	A sample along the snake path. More...

Public Member Functions
	Player ()
void	update ()
bool	physics (double fullTime, double frameTime)
void	updateModels ()
bool	alive () const
int	score () const

Public Attributes
glm::mat4	modelHead = glm::mat4(1.0f)
	The snake head model matrix.
std::vector< glm::mat4 >	modelsBody
	The snake body elements model matrices.
std::vector< glm::mat4 >	modelsItem
	The edible items model matrices.
std::vector< int >	looksBody
	The snake body elements material IDs.
std::vector< int >	looksItem
	The edible items material IDs.

Private Attributes
glm::vec3	_momentum = glm::vec3(0.0f, 1.0f, 0.0f)
	The snake momentum.
glm::vec3	_position = glm::vec3(0.0f)
	The snake position.
float	_angle = 0.0f
	The snake head orientation.
std::vector< glm::vec2 >	_positions
	The snake body elements positions.
std::vector< float >	_angles
	The snake body elements orientations.
std::vector< glm::vec2 >	_items
	The items positions.
std::vector< PathPoint >	_path
	Ring buffer containing samples along the snake path.
unsigned int	_currentSample = 0
	The current sample in the ring buffer.
unsigned int	_currentFrame = 0
	Current frame (modulo sampling period).
double	_lastSpawn = 0.0
	Time since the last item spawn.
float	_invicibility = 0.0f
	Invicibility time buffer after boucning off a wall.
int	_score = 0
	Player score.
bool	_alive = true
	Player status.
const glm::vec3	_maxPos = glm::vec3(8.6f, 5.0f, 0.0f)
	Terrain bounding box.
const double	_spawnPeriod = 1.5
	Time betweeen two item spawns.
const size_t	_numSamplesPath = 512
	Size of the samples ring buffer.
const size_t	_samplingPeriod = 15
	Frame count between two samples.
const float	_radius = 0.5f
	Items and elements radius.
const float	_headAccel = 4.0f
	Head speed.
const float	_angleSpeed = 6.0f
	Head angular speed.
const float	_minSamplingDistance = 0.02f
	Minimum distance between two samples.
const float	_invicibilityIncrease = 0.5f
	Amount of time added to invicibility at each bounce.
const float	_eatingDistance = 1.5f
	Distance below which an item can be eaten.
const float	_minSpawnDistance = 3.0f
	Minimum distance with the snake head when spawning a new item.
const float	_collisionDistance = 1.5f
	Distance below which a collision is registered.
const int	_spawnTentatives = 50
	Ho many spawn attempts should be made at each spawn event.
const int	_maxItems = 20
	Max number of items on the terrain.
const int	_itemValue = 1
	Score gained when eating an item.

Detailed Description

Player state and animations.

Constructor & Destructor Documentation

Player()

Player::Player

(

)

Constructor

Member Function Documentation

alive()

bool Player::alive ( ) const

inline

Status of the player.

Returns

true if the player is alive.

physics()

bool Player::physics	(	double	fullTime,
		double	frameTime
	)

Update the physic state of the player snake and items

Parameters

fullTime	time elapsed since the beginning of the game
frameTime	delta time since last physics update

Returns

a boolean denoting if any item has been eaten.

score()

int Player::score ( ) const

inline

Score of the player.

Returns

the score.

update()

void Player::update

(

)

Update logical state, once per frame

updateModels()

void Player::updateModels

(

)

Update the model matrices of all items This is so that we avoid updating them at each physics step.

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

• src/apps/snakegame/Player.hpp
• src/apps/snakegame/Player.cpp