EnemyObject Class Reference

This class contains methods about the enemies character in the game. More...

#include <EnemyObject.hpp>

Inheritance diagram for EnemyObject:

Collaboration diagram for EnemyObject:

Public Member Functions
	EnemyObject (int x, int y, int walkSpd, int runSpd, int dmg, Mix_Chunk *hitSound, Mix_Chunk *hurtSound)
	Constructor. More...
	~EnemyObject ()
	Destructor. More...
void	init ()
	initialize enemy stats More...
void	Update (int x, int y, int *params) override
	Update the position and animation of a enemy. More...
void	Render (SDL_Renderer *ren) override
	Render the enemy to the active viewport. More...
void	processInput (SDL_Event e) override
	Process user input. More...
void	GetDirection ()
void	Move ()
bool	DetectPlayer (int playerX, int playerY)
	Detect player's position. More...
void	setCurrTileMap (TileMap *newMap)
	Set current tilemap the enemy is in. More...
void	setCurrPlayer (GameObject *newplr)
	Set current player. More...
void	Angry ()
	Detect player's positon and change enemy's state to angry. More...
void	Rest ()
	Detect player's positon and change enemy's state to moving. More...
void	StateMachine ()
	Update the enemy's animation state according to the time checkers. More...
void	checkCollisionWithPlayer ()
	Check if the enemy is colliding with the player. More...
void	GetNewDest (bool chasingPlayer)
	Get the new moving direction from the pathfinder. More...
void	setPosX (int x)
	set the enemy's pos x More...
void	setPosY (int y)
	set the enemy's pos y More...
int	getPosX ()
	get the enemy's pos x More...
int	getPosY ()
	get the enemy's pos y More...
void	setHP (int HP)
	set the enemy's health More...
int	getHP ()
	get the enemy's health More...
void	setCollider (CollisionComponent *newCollider)
	set the collider More...
void	resetPos ()
	reset the enemy pos to default pos More...
void	ProcessCollision ()
	do the collision check codes. update collider pos, process collisions and retrieve updated positions More...
void	beAttacked (Position hitDirection)
	a function to trigger be-hit behaviors: knock back and lose health More...
Public Member Functions inherited from GameObject
	GameObject ()
	Constructor. More...
	~GameObject ()
	Destructor. More...
void	removeComponent (std::string key)
	Remove a component in this gameobject. More...
void	addComponent (std::string key, Component *component)
	Add a component in this gameobject. More...
Component *	getComponent (std::string key)
	Get an reference of a component. More...
void	setActive (bool newState)
	activate / deactivate game object. inactive object won't be updated and rendered More...
bool	isActive ()
	Get the state of the game. More...
int	getID ()
	Get the unique id of the gameobject. More...

Additional Inherited Members
Static Public Attributes inherited from GameObject
static int	idCounter = 0
Protected Attributes inherited from GameObject
std::map< std::string, Component * >	m_components
	Store all the game components in a map. More...
bool	objState
	deactivated objects won't get updated/rendered More...
int	id
	the unique id More...

Detailed Description

This class contains methods about the enemies character in the game.

Constructor & Destructor Documentation

EnemyObject()

EnemyObject::EnemyObject	(	int	x,
		int	y,
		int	walkSpd,
		int	runSpd,
		int	dmg,
		Mix_Chunk *	hitSound,
		Mix_Chunk *	hurtSound
	)

Constructor.

Parameters

x	The x location of this enemy's initial position.
y	The x location of this enemy's initial position.
walkSpd	The walk speed.
runSpd	The run speed.
dmg	The damage value of an enemy.
hitSound	Enemy getting hit sound effect.
hurtSound	Enemy hurts player sound effect.

~EnemyObject()

EnemyObject::~EnemyObject

(

)

Destructor.

Member Function Documentation

Angry()

void EnemyObject::Angry

(

)

Detect player's positon and change enemy's state to angry.

beAttacked()

void EnemyObject::beAttacked

(

Position

hitDirection

)

a function to trigger be-hit behaviors: knock back and lose health

Parameters

hitDirection

The direction of the knock back.

checkCollisionWithPlayer()

void EnemyObject::checkCollisionWithPlayer

(

)

Check if the enemy is colliding with the player.

DetectPlayer()

bool EnemyObject::DetectPlayer	(	int	playerX,
		int	playerY
	)

Detect player's position.

Parameters

playerX	The x location of player's position.
playerY	The x location of player's position.

GetDirection()

void EnemyObject::GetDirection

(

)

getHP()

int EnemyObject::getHP ( )

inline

get the enemy's health

Returns

the enemy's health

GetNewDest()

void EnemyObject::GetNewDest

(

bool

chasingPlayer

)

Get the new moving direction from the pathfinder.

Parameters

chasingPlayer

whether the enemy is chasing player or going to random position

getPosX()

int EnemyObject::getPosX ( )

inline

get the enemy's pos x

Returns

int current pos x

getPosY()

int EnemyObject::getPosY ( )

inline

get the enemy's pos y

Returns

int current pos y

init()

void EnemyObject::init

(

)

initialize enemy stats

Move()

void EnemyObject::Move

(

)

ProcessCollision()

void EnemyObject::ProcessCollision

(

)

do the collision check codes. update collider pos, process collisions and retrieve updated positions

processInput()

void EnemyObject::processInput ( SDL_Event  e )

overridevirtual

Process user input.

This class is not useful in current development our enemy has implemented AI technologies. However, we may add some new features in the future.

Parameters

e	A SDL_Event that contains structures for the different event types.

Reimplemented from GameObject.

Render()

void EnemyObject::Render ( SDL_Renderer *  ren )

overridevirtual

Render the enemy to the active viewport.

Parameters

ren	Reference to SDL renderer.

Reimplemented from GameObject.

resetPos()

void EnemyObject::resetPos

(

)

reset the enemy pos to default pos

Rest()

void EnemyObject::Rest

(

)

Detect player's positon and change enemy's state to moving.

setCollider()

void EnemyObject::setCollider ( CollisionComponent *  newCollider )

inline

set the collider

Parameters

newCollider

the given collider

setCurrPlayer()

void EnemyObject::setCurrPlayer

(

GameObject *

newplr

)

Set current player.

This function aims to refresh the enemy's target player. Identify the user's location aims to refersh the animation states of the enemy.

setCurrTileMap()

void EnemyObject::setCurrTileMap

(

TileMap *

newMap

)

Set current tilemap the enemy is in.

Parameters

newMap

New tilemap.

setHP()

void EnemyObject::setHP ( int  HP )

inline

set the enemy's health

Parameters

HP	The amount of the health of the enemy.

setPosX()

void EnemyObject::setPosX ( int  x )

inline

set the enemy's pos x

Parameters

x

new pos x

setPosY()

void EnemyObject::setPosY ( int  y )

inline

set the enemy's pos y

Parameters

y

new pos y

StateMachine()

void EnemyObject::StateMachine

(

)

Update the enemy's animation state according to the time checkers.

Update()

void EnemyObject::Update ( int  x, int  y, int *  params  )

overridevirtual

Update the position and animation of a enemy.

Parameters

x	The x location of player's position.
y	The x location of player's position.
params	An int array stores additional data.

Reimplemented from GameObject.