ai.stateMachine

Class StateMachine

java.lang.Object

ai.stateMachine.StateMachine

public class StateMachine
extends java.lang.Object

This is the agent's main behavioural state machine and implements the state design pattern.

It contains the states the agent may be in.

One state is assigned as the current state. Only the current state's implementation of processModel() is ever called by clients.

The state may be changed to a new state by calling changeState with a next state to change to.

Field Summary

Fields

Modifier and Type	Field and Description
static AttackingState	ATTACKING_STATE
static DefendingState	DEFENDING_STATE
static PassiveState	PASSIVE_STATE
static SupportState	SUPPORT_STATE

Constructor Summary

Constructors

Constructor and Description
StateMachine(CommandPlayer context) Create a state machine for a particular agent.

Method Summary

Modifier and Type	Method and Description
void	changeState(State nextState, EnvironmentModel model) Change to a new state.
CommandPlayer	getContext() Return the context agent of this state machine.
void	processModel(EnvironmentModel model) Process the model in the current state.

Methods inherited from class java.lang.Object

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

Field Detail

PASSIVE_STATE

public static final PassiveState PASSIVE_STATE

DEFENDING_STATE

public static final DefendingState DEFENDING_STATE

ATTACKING_STATE

public static final AttackingState ATTACKING_STATE

SUPPORT_STATE

public static final SupportState SUPPORT_STATE

Constructor Detail

StateMachine

public StateMachine(CommandPlayer context)

Create a state machine for a particular agent.

Parameters:

context - The agent to which this state machine belongs.

Method Detail

changeState

public void changeState(State nextState,
                        EnvironmentModel model)

Change to a new state. Changing state will call exit on the current state, and enter on the target state. Update state will then be called on the new state.

Parameters:

nextState - The state which should become the new currentState.

model - The current model which should be used to validate the new state.

processModel

public void processModel(EnvironmentModel model)

Process the model in the current state. Prior to processing, the current state is validated by updateState.

Parameters:

model - The model to be processed in the current state.

getContext

public CommandPlayer getContext()

Return the context agent of this state machine.

Returns:

The CommpandPlayer attached to the agent.