/**
 *  <PRE>
 *  CFileReader.java
 *
 *  Revisions: 1.0 Nov. 24, 2002
 *               Created the CFileReader class
 *
 *  </PRE>
 *
 *  @author <A HREF="mailto:gtg184g@mail.gatech.edu">Jose Manuel Caban</A>
 *  @version Version 1.0, Nov. 24, 2002
 */

import java.io.*;
import java.util.*;

public class CFileReader implements Constants{
  
  BufferedReader brReader;
  
  /**
   *@return an array with the first 4 slots holding pacman and the ghost
   *start locations, slot 5 holding the Background grid, slot 6 holding the
   *Node Grid
   */
  public Object[] readMap(String mapFile){
    Object[] array = new Object[6];
    StringTokenizer st;
    
    /////////////////////
    //Read Start Points//
    /////////////////////
    
    try{
    	brReader = new BufferedReader(new FileReader(mapFile));
    }catch(FileNotFoundException fnfe){
    	System.err.println("File Not Found Error - CFileReader");
    	System.exit(0);
    }
    
    for(int i=0; i<5; i++){
    	st = new StringTokenizer("b");
    	try{
    		st = new StringTokenizer(brReader.readLine());
    	}catch(IOException ioe){
    		System.err.println(ioe);
    		System.exit(0);
    	}
    	
    	array[i] = new CCoord(Integer.parseInt(st.nextToken()),
    							Integer.parseInt(st.nextToken()),1);
    }
    /*End Read Start Points*/
    /////////////////////////
    
    String strTemp = "";
    CTile[][] cBgGrid;
    
    try{
    	strTemp = brReader.readLine();
    }catch(IOException ioe){
    	System.err.println(ioe);
    	System.exit(0);
    }
    
    ////////////////////////////////////////////////////    
    /*Check whether its standard file or enhanced grid*/
    
    switch(strTemp.charAt(0)){
    	case 'w': case 'n': case 's': case 'f':
    		cBgGrid = new CTile[15][15];
    		break;
    		
    	case '1':case '2':case '3':case '4': case '5': case '6': case '7':
		case '8':case '9':case '0':
			
			st = new StringTokenizer(strTemp);
			cBgGrid = new CTile[Integer.parseInt(st.nextToken())]
								[Integer.parseInt(st.nextToken())];
			
			try{
    			strTemp = brReader.readLine();
    		}catch(IOException ioe){
    			System.err.println(ioe);
    			System.exit(0);
    		}
    		
			break;
		default:
			cBgGrid = new CTile[0][0];
			break;
	}
	
	/*End Check file type*/
	///////////////////////
	
	///////////////
	/*Read in map*/
	st = new StringTokenizer("");
		
	for(int i=0; i<cBgGrid.length; i++){
		
		try{
			if(i==0){
				st = new StringTokenizer(strTemp);
			}else{
				st = new StringTokenizer(brReader.readLine());
			}
		}catch(IOException ioe){
			System.err.println(ioe);
			System.exit(0);
		}
		
		for(int z=0; z<cBgGrid[i].length; z++){
			
			switch(st.nextToken().charAt(0))
			{
				case 'f':
					cBgGrid[i][z] = new CTile(i,z,1);
					break;
				case 'n':
					cBgGrid[i][z] = new CTile(i,z,1);
					cBgGrid[i][z].setItems(true,false);
					break;
				case 's':
					cBgGrid[i][z] = new CTile(i,z,1);
					cBgGrid[i][z].setItems(false,true);
					break;
				default:
					case 'w':
					cBgGrid[i][z] = new CTile(i,z,2);
					break;
			}
		}
	}
	
	/*End map read*/
	////////////////
	array[5] = cBgGrid;
		
	//////////////
	//Init Nodes//
	//////////////
		
	CNode[][] cNode= new CNode[cBgGrid.length][cBgGrid[0].length];
	
	for(int i=0; i<cNode.length; i++){
		for(int z=0; z<cNode[i].length; z++){
			boolean up=false, down=false, left=false, right=false;
			
			//check up
			try{
				up = cBgGrid[i-1][z].getZ()==1?true:false;
			}
			catch(IndexOutOfBoundsException iobe){
				up = true;
			}
			catch(Exception e){
				up = false;
			}
			
			//check down
			try{
				down = cBgGrid[i+1][z].getZ()==1?true:false;
			}
			catch(IndexOutOfBoundsException iobe){
				down = true;
			}
			catch(Exception e){
				down = false;
			}
			
			//check left
			try{
				left = cBgGrid[i][z-1].getZ()==1?true:false;
			}
			catch(IndexOutOfBoundsException iobe){
				left = true;
			}
			catch(Exception e){
				left = false;
			}
			
			//check right
			try{
				right = cBgGrid[i][z+1].getZ()==1?true:false;
			}
			catch(IndexOutOfBoundsException iobe){
				right = true;
			}
			catch(Exception e){
				right = false;
			}
			
			if(cBgGrid[i][z] != null && cBgGrid[i][z].getZ()==1){
				cNode[i][z] = new CNode(up,down,left,right,i,z,1);
			}
		}
	}
		
	array[6] = cNode;					
	try{
		brReader.close();
	}catch(IOException ioe){
		System.err.println(ioe);
		System.exit(0);
	}
	
	return array;
  }
			
  public static void main(String args[]){
  	CFileReader bob = new CFileReader();
	Object[] steve = bob.readMap("board_1.txt");
	for(int i=0; i<5; i++){
		System.out.println(steve[i]);
	}
	
	System.out.println();
	
	CTile[][]  crystal = (CTile[][])steve[5];
	for(int i=0; i<crystal.length; i++){
		for(int z=0; z<crystal.length; z++){
			System.out.println(crystal[i][z]);
		}
	}
	
	CNode[][] julia = (CNode[][])steve[6];
	for(int i=0; i<julia.length; i++){
		for(int z=0; z<julia.length; z++){
			try{
				if(julia[i][z] == null){}
				else{
					System.out.println(julia[i][z]);}
				}
			catch(Exception e){
				//System.out.print("null");
			}
			}
			System.out.println("/*NextLine*/");
		}
		
	}	
		
    	
  
}// end of class CFileReader