/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * 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 2
 * of the License, or (at your option) any later version.

 * 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; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 */

/*
 * This code is based on the original source code of Lord Avalot d'Argent version 1.3.
 * Copyright (c) 1994-1995 Mike, Mark and Thomas Thurman.
 */

#include "graph.h"
/*#include "Crt.h"*/

namespace Avalanche {

integer gd, gm;

void flash(integer x1, integer y1, integer x2, integer y2) {
	setcolor(14);
	rectangle(x1, y1, x2, y2);
	sound(x1 + x2);
	delay(100);
	nosound;
	delay(500);
	setcolor(9);
	rectangle(x1, y1, x2, y2);
	delay(500);
}

boolean dropin(integer xc, integer yc, integer x1, integer y1, integer x2, integer y2)
/* Dropin returns True if the point xc,yc falls within the 1-2 rectangle. */
{
	boolean dropin_result;
	dropin_result = ((xc >= x1) && (xc <= x2) && (yc >= y1) && (yc <= y2));
	return dropin_result;
}

void test(integer x1, integer y1, integer x2, integer y2, integer x3, integer y3, integer x4, integer y4) {
	cleardevice();
	rectangle(x1, y1, x2, y2);
	rectangle(x3, y3, x4, y4);
	flash(x1, y1, x2, y2);
	flash(x3, y3, x4, y4);

	if (dropin(x3, y3, x1, y1, x2, y2)
	        || dropin(x3, y4, x1, y1, x2, y2)
	        || dropin(x4, y3, x1, y1, x2, y2)
	        || dropin(x4, y4, x1, y1, x2, y2)) {
		;     /* Overlaps */
		flash(x1, y1, x4, y4);
	} else {
		;     /* Doesn't overlap- flash 'em both again */
		flash(x3, y3, x4, y4); /* backwards- why not...? */
		flash(x1, y1, x2, y2);
	}
}

int main(int argc, const char *argv[]) {
	pio_initialize(argc, argv);
	gd = 3;
	gm = 1;
	initgraph(gd, gm, "");
	setcolor(9);
	test(100, 50, 200, 100, 400, 200, 600, 250);
	test(100, 50, 200, 100, 120, 70, 220, 120);
	test(100, 50, 200, 100, 150, 50, 250, 100);
	return EXIT_SUCCESS;
}

} // End of namespace Avalanche.