Michael Bayne
06f8a68b56
git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@1248 542714f4-19e9-0310-aa3c-eee0fc999fb1
112 lines
3.3 KiB
Java
112 lines
3.3 KiB
Java
//
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// $Id: RobotPlayer.java,v 1.2 2002/04/15 18:18:20 mdb Exp $
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package com.threerings.util;
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import java.awt.Component;
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import java.util.ArrayList;
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import com.samskivert.swing.Controller;
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import com.samskivert.util.CollectionUtil;
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import com.samskivert.util.Interval;
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import com.samskivert.util.IntervalManager;
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import com.threerings.util.RandomUtil;
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/**
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* The robot player is a computer player with truly rudimentary artificial
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* intelligence that periodically posts random commands selected from the
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* available key press and release commands to the target component.
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*
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* Note that {@link java.awt.Robot} could have been used to post key
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* events to the target component rather than commands, but not all key
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* events can be simulated in that fashion (e.g., a right shift key
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* press), and this seemed somehow more proper in any case.
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*/
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public class RobotPlayer implements Interval
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{
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/**
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* Constructs a robot player.
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*/
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public RobotPlayer (Component target, KeyTranslator xlate)
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{
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// save off references
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_target = target;
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_xlate = xlate;
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// build the list of available commands
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CollectionUtil.addAll(_press, _xlate.enumeratePressCommands());
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CollectionUtil.addAll(_release, _xlate.enumerateReleaseCommands());
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}
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/**
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* Sets whether the robot player is actively posting action commands.
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*/
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public void setActive (boolean active)
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{
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if (active && !isActive()) {
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// start the robot player
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_iid = IntervalManager.register(this, _robotDelay, null, true);
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} else if (!active && isActive()) {
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// stop the robot player
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IntervalManager.remove(_iid);
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_iid = -1;
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}
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}
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/**
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* Sets the delay in milliseconds between posting each action command.
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*/
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public void setRobotDelay (long delay)
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{
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_robotDelay = delay;
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// if the robot is active, reset it with the new delay time
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if (isActive()) {
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setActive(false);
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setActive(true);
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}
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}
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/**
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* Returns whether the robot is currently active and periodically
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* posting action commands.
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*/
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public boolean isActive ()
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{
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return (_iid != -1);
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}
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// documentation inherited
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public void intervalExpired (int id, Object arg)
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{
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// post a random key press command
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int idx = RandomUtil.getInt(_press.size());
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String command = (String)_press.get(idx);
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// Log.info("Posting artificial command [cmd=" + command + "].");
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Controller.postAction(_target, command);
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}
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/** The default robot delay. */
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protected static final long DEFAULT_ROBOT_DELAY = 500L;
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/** The unique robot interval identifier. */
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protected int _iid = -1;
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/** The milliseconds between posting each action command. */
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protected long _robotDelay = DEFAULT_ROBOT_DELAY;
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/** The list of available key press action commands. */
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protected ArrayList _press = new ArrayList();
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/** The list of available key release action commands. */
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protected ArrayList _release = new ArrayList();
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/** The key translator that describes available keys and commands. */
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protected KeyTranslator _xlate;
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/** The target component associated with game action commands. */
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protected Component _target;
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}
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