/*

 * Quoridor server and related libraries

 * Copyright (C) 2009-2010 Jaroslav Tulach <jaroslav.tulach@apidesign.org>

 *

 * This program is free software: you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation, either version 3 of the License.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program. Look for COPYING file in the top folder.

 * If not, see http://www.gnu.org/licenses/.

 */

package cz.xelfi.quoridor.freemarkerdor;

import cz.xelfi.quoridor.Board;

import cz.xelfi.quoridor.Fence;

import cz.xelfi.quoridor.Player;

import java.awt.Color;

import java.awt.Font;

import java.awt.Graphics2D;

import java.awt.Image;

import java.awt.Rectangle;

import java.awt.image.BufferedImage;

/** Convertor of a board to Image.

 *

 * @author Jaroslav Tulach <jtulach@netbeans.org>

 */

final class BoardImage  {

    static Image draw(Board b, int fieldSize) {

        int fifth = fieldSize / 10;

        BufferedImage img = new BufferedImage(fieldSize * 9, fieldSize * 9, BufferedImage.TYPE_INT_ARGB);

        Graphics2D g = (Graphics2D) img.getGraphics();

        g.setColor(Color.lightGray);

        for (int i = 0; i < 9; i++) {

            for (int j = 0; j < 9; j++) {

                final Rectangle r = new Rectangle(i * fieldSize, j * fieldSize, fieldSize, fieldSize);

                g.fillRect(r.x + fifth, r.y + fifth, r.width - fifth * 2, r.height - fifth * 2);

            }

        }

        g.setColor(Color.BLACK);

        for (Fence f : b.getFences()) {

            int w, h;

            switch (f.getOrientation()) {

                case HORIZONTAL: w = fieldSize - fifth; h = fifth; break;

                case VERTICAL: w = fifth; h = fieldSize - fifth; break;

                default: throw new IllegalStateException();

            }

            int column = (f.getColumn() - 'A') + 1;

            int row = 9 - f.getRow();

            Rectangle r = new Rectangle(

                column * fieldSize - w,

                row * fieldSize - h,

                2 * w,

                2 * h

            );

            g.fill(r);

        }

        int cnt = 0;

        Color[] colors = { Color.WHITE, Color.BLACK, Color.ORANGE, Color.MAGENTA };

        int diametr = fieldSize - fifth * 4;

        for (Player p : b.getPlayers()) {

            int column = p.getColumn();

            int row = 8 - p.getRow();

            final Rectangle r = new Rectangle(

                column * fieldSize + 2 * fifth,

                row * fieldSize + 2 * fifth,

                diametr,

                diametr

            );

            g.setColor(colors[cnt]);

            g.fillOval(r.x, r.y, r.width, r.height);

            if (p == b.getCurrentPlayer()) {

                g.setColor(Color.lightGray);

                g.fillOval(r.x + r.width / 3, r.y + r.height / 3, r.width / 3, r.height / 3);

            }

            cnt++;

        }

        g.setColor(Color.BLACK);

        final Font f = new Font("Monospace", Font.BOLD, fifth * 2);

        g.setFont(f);

        for (int i = 0; i < 8; i++) {

            final char ch = (char) ('A' + i);

            g.drawString(Character.toString(ch), i * fieldSize + fieldSize - fifth, fifth + f.getSize() - f.getBaselineFor(ch));

        }

        for (int i = 0; i < 8; i++) {

            String s = "" + (8 - i);

            g.drawString(s, fifth, i * fieldSize + fieldSize - fifth + f.getSize() - f.getBaselineFor(s.charAt(0)));

        }

        return img;

    }

}