//Extends the chessBoard with drawing the coins on the board, setting up the coin images and handling mouse events
import java.awt.*;
import java.awt.event.*;

public class draughtsCanvas extends draughtsChessBoard implements MouseListener
{
	
	private Image[] imgCoin = new Image[4]; //0 = red, 1 = blue, 2 = redKing, 3 = blueKing
	private draughtsMoveCheck moveCheck = new draughtsMoveCheck();
	
	public draughtsCanvas ()
	{		
		this.addMouseListener(this);		
	}
	
	public void resetBoard ()
	{
		
		moveCheck.reset();
		repaint();
		
	}
	
	public void setupCoins (Image coinRed, Image coinBlue, Image coinRedKing, Image coinBlueKing)
	{

		imgCoin[0] = coinRed;
		imgCoin[1] = coinBlue;
		imgCoin[2] = coinRedKing;
		imgCoin[3] = coinBlueKing;
		
		moveCheck.reset();			
		
	}		
	
	protected void drawExtra (Graphics g) //Extended from chessBoard to draw extra features like player pieces
	{	

		if (moveCheck.isTileSelected())
		{

			g.setColor(new Color(31,200,75)); //Bright green
			g.drawRect((moveCheck.getSelectedColumn() + 1) * 50, (moveCheck.getSelectedRow() + 1) * 50, 50, 50);
			
		}
		
		drawCoinMatrix(g);
		
		g.setColor(new Color(0,0,0));
		g.drawString(moveCheck.getStatusMsg(), 50, 475); //Write the msg on the south border
		
	}
	
	private void drawCoinMatrix (Graphics g) //Draws all the coins on the board
	{
		
		int cellContents = 0;
		
		for (int row = 0; row < 8; row++)
		{
			
			for (int column = 0; column < 8; column++)
			{
				
				cellContents = moveCheck.getCell(row, column);
				
				if (cellContents != 0 && cellContents != 5) //If cell is not empty or an ilegal cell (can't move on)
				{
					drawCoin(g,((column + 1) * 50),((row + 1) * 50), cellContents);
				}
				
			}
			
		}
		
	}	
	
	private void drawCoin (Graphics g, int startX, int startY, int currentPlayer) //Draw each indvidual coin
	{
		g.drawImage(imgCoin[currentPlayer - 1], startX, startY, this);
	}
	
	private int findWhichTileSelected (int coor)
	{
		
		for (int i = 0; i < 8; i++)
		{
			
			if (coor > (i + 1) * 50 && coor < (i + 2) * 50)
			{
				return i;
			}
			
		}
		
		return -1;
		
	}
	
	public void mouseClicked (MouseEvent e)
	{
	}
	
	public void mouseEntered (MouseEvent e)
	{
	}
	
	public void mouseExited (MouseEvent e)
	{
	}
	
	public void mousePressed (MouseEvent e)
	{
		
		if (!moveCheck.isWinner()) //If the game hasn't been won
		{
		
			int row = findWhichTileSelected(e.getY());
			int column = findWhichTileSelected(e.getX());
			
			if (row != -1 && column != -1)
			{
				
				moveCheck.processMouseClick (row, column);
				repaint();
				
			}
		
		}
		
	}
	
	public void mouseReleased (MouseEvent e)
	{
	}
	
}