queryrobot.java

是有关解释器的.用JAVA编写.可以解释一般的JAVA程序.

/**
 * Robot masters everything which UrRobt masters. Further he is able to recieve
 * informations from its environment.
 */


public class QueryRobot extends UrRobot
{
	/**
	 * As like the class UrRobot the class UrRobot contains only one constructor.
	 * It expects parameters where to place the robot,
	 * wihch direction it shows in and how many beepers it has.
	 * @param street The parameter street gives the street where the robot should be placed.
	 * @param avenue The parameter avenue gives the avenue where the robot should be placed.
	 * @param direction The parameter direction gives the direction which the robot looks in.
	 * @param beepers The parameter beepers gives the numbers of beepers the robot carries.
	 */
	/**/public QueryRobot( int street, int avenue, int beepers, direction dir )
	{
		super( street, avenue, beepers, dir );
	}

	/**
	 * @return Returns true if the robot still carries beepers else it returns false.
	 */
	/**/public boolean anyBeepersInBeeperBag()
	{
		return World.getWorld().getBeepers( robotId ) != 0;
	}
	
	/**
	 * @return Returns true if the robot looks east else false.
	 */
	/**/public boolean facingEast()
	{
		return World.getWorld().getDirection( robotId ) == East.getValue();
	}

	/**
	 * @return Returns true if the robot looks north else false.
	 */
	/**/public boolean facingNorth() 
	{
		return World.getWorld().getDirection( robotId ) == North.getValue();
	}

	/**
	 * @return Returns true if the robot looks south else false.
	 */
	/**/public boolean facingSouth() 
	{
		return World.getWorld().getDirection( robotId ) == South.getValue();
	}

	/**
	 * @return Returns true if the robot looks west else false.
	 */
	/**/public boolean facingWest() 
	{
		return World.getWorld().getDirection( robotId ) == West.getValue();
	}

	/**
	 * @return Returns true if no wall, x- or y-axis infront of the robot else false.
	 */
	/**/public boolean frontIsClear() 
	{
		return World.getWorld().frontIsClear( robotId );
	}

	/**
	 * @return Returns true if there are one or more beepers at the position the robot stands at.
	 */
	/**/public boolean nextToABeeper()
	{
		return World.getWorld().nextToABeeper( robotId );
	}

	/**
	 * @return Returns true if there are one or more robots at the position the robot stands at.
	 */
	/**/public boolean nextToARobot() 
	{
		return World.getWorld().nextToARobot( robotId );
	}
	
}