/*-
* Copyright (c) 2003 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Christos Zoulas.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Single box utilities; A box is an entity with four edges, four corners, and
* a center that maps directly to a board
*/
#ifndef _H_BOX
#define _H_BOX
#include <stdlib.h>
class BOARD;
class POINT {
public:
int x;
int y;
};
class BOX {
public:
enum EDGE {
first = 0,
top = 0,
bottom = 1,
left = 2,
right = 3,
last = 4,
};
BOX(size_t py, size_t px, BOARD& b);
void reset(void); // Clear a box
void paint(void); // Paint a box
// Member access
int& name(void);
int& edge(int e);
int count(void) const; // Count the number of edges in use
// Useful constants
// Relative coordinates of the edges from the center of the box.
static const POINT edges[BOX::last];
// Relative coordinates of the corners from the center of the box.
static const POINT corners[BOX::last];
// Character symbols of the four edges
static const int syms[BOX::last];
private:
void addcorner(size_t y, size_t x); // add a corner character
size_t _centerx; // Coordinates of the center in board units
size_t _centery;
BOARD& _b; // The board we refer to
};
