/************************************
 * Umass Amherst
 * CS377 Operating System
 * Lab2:
 * Author: Qi Li, Andrew Fagg
 * Date: 9/22/2002
 *
 * Class in this file: Abstract_Robot
 * Compile: javac Abstract_Robot.java
 * Run: n/a
 ***********************************/

import java.util.*;
import java.lang.*;


/***********************************
*  ClassName: Abstract_Robot
*  SuperClass: Thread
*  Description: Beginnings of the Robot Thread
*  Methods:
*    GetPosRow() GetPosCol(): get the robot Row position
*    SetPosRow() SetPosCol(): set the robot Col position
*    getNofEat():         Return the number of edible goals
*
*  Methods required to be implemented:
*    run():               Top level thread code
*  
************************************/
abstract class Abstract_Robot extends Thread
{
    private int Row;       //the robot's Row Position 
    private int Col;       //the robot's Col Position 
    char cColor; //the Robot 's Color 
    int id;      //Identity of the robot

    Map_Data myGrid;           // Reference to the Map_Data in which the robot lives
    Abstract_Distance myDist;  // Reference to the distance matrix for this robot

    public void setColor(char inC){ cColor=inC ;} //set color to the robots
    int nMaxRow,nMaxCol; // the size of map, which is equal to nSizeRow,nSizeCol in Map 
   
    //int nEatable;        // the number of edible goals for this robot.
    boolean bDead=false; // True if the robot is dead

    final int GetPosRow(){return Row;}  //get row
    final int GetPosCol(){return Col;}  //get column
    final char GetColor(){return cColor;} //get color

    // Set the Row of the robot
    final void SetPosRow(int new_row)
    {
	// Do not remove this sleep
	try
	    {
		sleep(1);
	    }
	catch(InterruptedException e){};
        Row = new_row;
    };

    // Set the Col of the robot
    final void SetPosCol(int new_col)
    {
	// Do not remove this sleep
	try
	    {
		sleep(1);
	    }
	catch(InterruptedException e){};
	Col = new_col;

    };

 
    //////////////////////////////////////////////////////////////////////
    // Get the number of current edible goals by this color robot
    /////////////////////////////////////////  	
    public int getNofEat(){
  	int nCanEat=0;
  	for (int i=0;i<myGrid.nGoals;i++)
	    if (!myGrid.Goals[i].isEaten)
		if ((myGrid.Goals[i].cColor==cColor)||(myGrid.Goals[i].cColor=='k'))
		    nCanEat++;
        return nCanEat;
    }


    ////////////////////////////////////////////////////////////////////////////
    // Methods that must be implemented
    //

    abstract public void run();
    
};