appletbots.gatherers
Class Gatherer

java.lang.Object
  appletbots.WorldObject
      appletbots.Agent
          appletbots.CarrierAgent
              appletbots.gatherers.Gatherer

public class Gatherer
extends CarrierAgent

A gatherer agent chooses the closest visible piece of food that is currently not being carried by anyone (and is not already in the agent's home base) and accelerates towards it. If no "uncarried" food can be found, the agent tries to find food carried by a member of the opposing team to accelerate towards. If no food is visible the agent sets his acceleration to a random vector to search for food. When it gets close enough to pick up a piece of food, it picks it up and carries it towards its home base corner for 20 time cycles, and drops it again. The gatherer must then rest for 10 time cycles before picking up another piece of food. During these 10 time cycles, the "exhausted" agent does not accelerate.

Author:

Erik Rasmussen

Field Summary

protected boolean	bottomRightTeam Whether or not the agent is on the team with the home base in the bottom right-hand corner of the world
protected int	timeCarried The amount of time the gatherer has been carrying a piece of food
protected int	timeToRest The the amount of time needed to rest
protected Vector	towardsHome The vector pointing in the direction of the agent's home base

Fields inherited from class appletbots.Agent

accelerationVectorColor, maxAcceleration, sight, velocityVectorColor, world

Fields inherited from class appletbots.WorldObject

color, mass, maxSpeed, size

Constructor Summary

Gatherer(int pickupDistance, boolean bottomRightTeam, int size, int sight, double maxSpeed, double maxAcceleration)
Constructs a new Gatherer with the given parameters

Method Summary

protected Food	chooseFood(boolean carried) Selects closest visible food not already in home base
protected void	dropFood() Attempts to drop any carried food
protected Gatherer	getNearestGatherer(boolean opponent) Returns the nearest visible gatherer
boolean	isBottomRightTeam() Returns whether or not the agent is on the team with the home base in the bottom right-hand corner of the world
void	observeWorld() Observes the world, and follows the Gatherer Algorithm.
protected void	pickUp(CarriableObject item) Picks up an object

Methods inherited from class appletbots.CarrierAgent

drop, getInventory, getPickUpDistance, hasItem, hasItems

Methods inherited from class appletbots.Agent

getAcceleration, getMaxAcceleration, getRandomAcceleration, getShowAcceleration, getShowVelocity, getSight, getVectorsToDraw, setAcceleration, setShowAcceleration, setShowVelocity, setWorld

Methods inherited from class appletbots.WorldObject

collidedWith, getColor, getMass, getMaxSpeed, getSize

Methods inherited from class java.lang.Object

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

Field Detail

bottomRightTeam

protected boolean bottomRightTeam

Whether or not the agent is on the team with the home base in the bottom right-hand corner of the world

timeCarried

protected int timeCarried

The amount of time the gatherer has been carrying a piece of food

timeToRest

protected int timeToRest

The the amount of time needed to rest

towardsHome

protected Vector towardsHome

The vector pointing in the direction of the agent's home base

Constructor Detail

Gatherer

public Gatherer(int pickupDistance,
                boolean bottomRightTeam,
                int size,
                int sight,
                double maxSpeed,
                double maxAcceleration)

Constructs a new Gatherer with the given parameters

Parameters:

pickupDistance - The distance from an object the agent must be to pick up the object

bottomRightTeam - Whether or not this agent is on the team moving food to the bottom right corner of the world

size - The agent's radius

sight - The distance the agent can see

maxSpeed - The maximum speed the agent can travel

maxAcceleration - The maximum acceleration for this agent

Method Detail

observeWorld

public void observeWorld()

Observes the world, and follows the Gatherer Algorithm.

Specified by:

observeWorld in class Agent

chooseFood

protected Food chooseFood(boolean carried)

Selects closest visible food not already in home base

Parameters:

carried - Whether or not the food we are looking for is being carried

Returns:

The closest visible food not already in home base

getNearestGatherer

protected Gatherer getNearestGatherer(boolean opponent)

Returns the nearest visible gatherer

Parameters:

opponent - If true will return nearest visible opponent, otherwise nearest teammate

Returns:

The nearest visible gatherer

isBottomRightTeam

public boolean isBottomRightTeam()

Returns whether or not the agent is on the team with the home base in the bottom right-hand corner of the world

Returns:

Whether or not the agent is on the team with the home base in the bottom right-hand corner of the world

dropFood

protected void dropFood()

Attempts to drop any carried food

pickUp

protected void pickUp(CarriableObject item)

Picks up an object

Overrides:

pickUp in class CarrierAgent

Parameters:

item - The object to pick up