pawn.java

public class Pawn extends Piece{

	public Pawn ()
	 {
		 super();
		 this.color = 0;
		 this.type = 6;
	 }
		
	 public Pawn(int color)
	 {
		 super();
		 this.color = color;
		 this.type = 6;
	 }
	 
	 public Pawn(int color, int x, int y)
	 {
		 super();
		 this.color = color;
		 this.type = 6;
		 this.setCoordinates(x, y);
	 }
	@Override
	public int getType() {
		// TODO Auto-generated method stub
		return 6;
	}

	@Override
	public boolean isMoveLegal(int x, int y) {
		// TODO Auto-generated method stub
		if((isVerticalDoubleStepPossible(x,y)) && isInBounds(x,y) && (this.getHasMovedOnce()== false)) //A pawn can double-step if it has never moved
		{ 
			return true;
		}  
		else if((isVertical(x,y)) && isInBounds(x,y))  //Single-step
		{
			return true; 
		} 
		return false; 
		//A pawn can move diagonally too when killing another piece, but we will handle that in the board logic 
		//We will also set the HasMovedOnce to true in the board logic, since that handles the physical movements of the pieces
	}

	@Override
	public boolean isVertical(int x, int y) {
		if(curr_x==x && Math.abs(curr_y-y)==1) 
		{	
		// TODO Auto-generated method stub
		return true; 
		} 
		return false;
	} 
	public boolean isVerticalDoubleStepPossible(int x, int y) {
		if(curr_x==x && Math.abs(curr_y-y)<=2) 
		{	
		// TODO Auto-generated method stub
		return true; 
		} 
		return false;
	}

	@Override
	public boolean isHorizontal(int x, int y) {
		 return false;	
	}

	@Override
	public boolean isDiagonal(int x, int y) {
		// TODO Auto-generated method stub
		return false;
	}

	@Override
	public boolean isKnightMovement(int x, int y) {
		// TODO Auto-generated method stub
		return false;
	}

	@Override
	public boolean isInBounds(int x, int y) {
		// TODO Auto-generated method stub
		return false;
	}
}