utilities

Class DropCheck

java.lang.Object

java.lang.Thread

utilities.DropCheck

All Implemented Interfaces:

Runnable

public class DropCheck
extends Thread

Runs during capture to make sure the block was not dropped. Tries to retrieve the block if it is dropped.

Version:

3.0

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

Thread.State, Thread.UncaughtExceptionHandler

Field Summary

Fields

Modifier and Type	Field and Description
private Object	dropMutex
boolean	dropped
Lock	interrupt
private Navigation	nav
private Odometer	odo
private Search	search

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

Constructors

Constructor and Description
DropCheck(Odometer odo, Search search) DropCheck Constructor

Method Summary

Modifier and Type	Method and Description
boolean	getDropped() If the robot has dropped the block.
void	run()
private void	setDropped(boolean dropped) Sets the drop state of the block.

Methods inherited from class java.lang.Thread

activeCount, checkAccess, clone, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Field Detail

odo

private Odometer odo

nav

private Navigation nav

search

private Search search

dropped

public boolean dropped

interrupt

public Lock interrupt

dropMutex

private Object dropMutex

Constructor Detail

DropCheck

public DropCheck(Odometer odo,
                 Search search)

DropCheck Constructor

Parameters:

odo - Odometer object

search - Search thread (to access and set states)

Method Detail

run

public void run()

Specified by:

run in interface Runnable

Overrides:

run in class Thread

getDropped

public boolean getDropped()

If the robot has dropped the block. Uses mutual exclusion since Capture and DropCheck will both be polling dropped.

Returns:

if the block is dropped

setDropped

private void setDropped(boolean dropped)

Sets the drop state of the block. Uses mutual exclusion.

Parameters:

dropped - if the block should be set to dropped