Package org.progettoedids.entities.npcs.monsters

Class Monster

java.lang.Object

org.progettoedids.entities.Entity

org.progettoedids.entities.npcs.NPC

org.progettoedids.entities.npcs.monsters.Monster

All Implemented Interfaces:

InteractiveOnTurnStart

Direct Known Subclasses:

Lilith, Marvin

public class Monster
extends NPC

A Monster is an NPC which is characterized by a certain health and a certain Weapon.

A Monster is supposed to interact with the user at the beginning of each turn if the player is located in the same Room as the Monster. The interaction consists in a fight between the Player and the Monster and ends with either one of them dead. The Player can choose which Weapon in its inventory to use to attack the monster, the monster attack the player using his only weapon which is set a subset of Monster.

Field Summary

Fields

Modifier and Type	Field	Description
protected int	health
protected Weapon	weapon

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	Monster(String systemName, String name, int health, Weapon weapon)	Initializes a Monster.

Method Summary

Modifier and Type	Method	Description
void	decreaseHealth(int amount)	Decreases the health of the Monster by a specified amount.
int	getHealth()	Returns the current health of the Monster.
void	interactOnTurnStart(CommandLogger commandLogger, Labyrinth labyrinth)	Interacts with the user.
protected void	monsterAttacksPlayer(Player player)
protected void	playerAttacksMonster(CommandLogger commandLogger, Player player, Weapon playerWeapon)
protected Weapon	playerChooseWeaponFromInventory(CommandLogger commandLogger, Player player)
String	toString()

Methods inherited from class org.progettoedids.entities.Entity

getName, getSystemName, getUUID, setName

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Details

health

protected int health

weapon

protected Weapon weapon

Constructor Details

Monster

protected Monster(String systemName,
 String name,
 int health,
 Weapon weapon)

Initializes a Monster.

Parameters:

systemName - The system name is used to uniquely identify a certain type of NPC. Must not be null

name - The name is displayed to the user and is used to identify an instance of an NPC by the user. Must not be null

health - The initial amount of health of the Monster. Must be positive

weapon - The weapon the Monster will use. Must not be null

Throws:

IllegalArgumentException - if the health is not positive

Method Details

getHealth

public int getHealth()

Returns the current health of the Monster.

Returns:

an integer representing the health

decreaseHealth

public void decreaseHealth(int amount)

Decreases the health of the Monster by a specified amount.

Parameters:

amount - The amount of health to remove from the monster. Must be positive or zero

toString

public String toString()

Overrides:

toString in class Entity

interactOnTurnStart

public void interactOnTurnStart(CommandLogger commandLogger,
 Labyrinth labyrinth)
                         throws GameOverException

Interacts with the user. The Monster fights the Player until one of them dies.

A fight consists of the Player and the Monster interleaving attacks on each other one at a time. The Player is asked to choose which of the weapon it helds in its inventory to use. The Monster weapon isn't affected by its durability. The Player weapon instead decreases his durability by one at each attack. If a Player's weapon gets worn out completely the user is prompted to choose a new Weapon. If the Player doesn't have any Weapon to fight the Monster he dies automatically.

Parameters:

commandLogger - the CommandLogger onto which the user typed commands are saved. Must not be null

labyrinth - the Labyrinth on which the interaction actions are performed. Must not be null

Throws:

GameOverException - if the Player dies during the interaction

playerChooseWeaponFromInventory

protected Weapon playerChooseWeaponFromInventory(CommandLogger commandLogger,
 Player player)
                                          throws GameOverException

Throws:

GameOverException

monsterAttacksPlayer

protected void monsterAttacksPlayer(Player player)
                             throws GameOverException

Throws:

GameOverException

playerAttacksMonster

protected void playerAttacksMonster(CommandLogger commandLogger,
 Player player,
 Weapon playerWeapon)
                             throws GameOverException

Throws:

GameOverException