public class Cell {
	double x, y ;    // center point
	int i,j ;  // coordinate of cell within matrix
	double radius ;   // the cells half-width
	boolean walls[]  ;    // zero is the top, 1 the right, 2 bottom, 3 left
	boolean explored[] ;    // paths leading out of cell explored during a search
	boolean visited ;   // used in the maze generation and solving algorithms
	
	public Cell(int inI, int inJ, double inx, double iny, double inRadius)
	{
		x = inx ;
		y = iny ;
		i = inI ;
		j = inJ ;
		radius = inRadius ;
		walls = new boolean[4] ;
		explored = new boolean[4] ;
		for (int i = 0 ; i < 4 ; i++)
		{
			walls[i] = true ;
			explored[i] = false ;
		}
	}
	
	public void printTerse()
	{
		System.out.print(i + " " + j + " ") ;
		for (int i = 0 ; i < 4 ; i++)
			if (walls[i])
				System.out.print("U ") ;
			else
				System.out.print("D ") ;
		System.out.println("") ;
	}
	
	public void printTerseOneZero()
	{
		System.out.print(i + " " + j + " ") ;
		for (int i = 0 ; i < 4 ; i++)
			if (walls[i])
				System.out.print("1 ") ;
			else
				System.out.print("0 ") ;
		System.out.println("") ;
	}
	
	public boolean visited()  {return visited;} 
	public double getX() { return x ;}
	public double getY() { return y ;}
	public int getI() {return i ;}
	public int getJ() { return j ;}
	
	
	public void setVisited(boolean newValue) {visited = newValue;} 
	
	public void removeWall(int wallNum)
	{
		walls[wallNum] = false ;
	}
	public void createWall(int wallNum)
	{
		walls[wallNum] = true ;
	}
	public int numWallsUp() 
	{
		int numUp = 0 ;
		for (int i = 0 ; i < 4 ; i++)
			if (walls[i]) numUp++ ;
		return(numUp) ;
	}
	
	public void setExplored(int i) {explored[i] = true ;}
	public void clearExplored(int i) {explored[i] = false ;}
	public boolean wasExplored(int i) { return explored[i] ; }
	public boolean wallExists(int i) { return walls[i] ;}
	
	
	
	
	public void draw()
	{
		if (walls[0])   StdDraw.line(x-radius, y+radius, x+radius, y+radius) ;
		if (walls[1])   StdDraw.line(x+radius, y+radius, x+radius, y-radius) ;
		if (walls[2])   StdDraw.line(x+radius, y-radius, x-radius, y-radius) ;
		if (walls[3])   StdDraw.line(x-radius, y-radius, x-radius, y+radius) ;
		
	}

}