/* 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"*/
/*#include "Ansi.h"*/

namespace Avalanche {

integer gd, gm;
untyped_file f;
array<1, 16000, byte> aa;
matrix<0, 27, 0, 35, byte> cols;
text t;
string x;
byte n;
byte spaces;
byte cfg, cbg; /* Current foreground & background. */
byte ofg, obg; /* Old fg & bg. */

void do_spaces() {
	if (spaces == 0)  return;
	along(spaces);
	spaces = 0;
}

void finishline();
static byte wx, wy;

static void jumpto(byte xx) {
	along(xx - wx);
}

void finishline() {
	wx = 29 - spaces;
	wy = gm + 1;
	switch (wy) {
	case 1: {
		sgr(7);
		jumpto(35);
		output << "Back in good old A.D. ";
		sgr(15);
		output << "1189";
		sgr(7);
		output << "..." << NL;
		cfg = 7;
	}
	break;
	case RANGE_5(3, 7): {
		t >> x >> NL;
		while (x[length(x)] == '\40')  x[0] -= 1;
		if (x != "") {
			jumpto(30);
			sgr(9);
			spaces = 0;
			while (x != "") {
				if (x[1] == ' ')
					spaces += 1;
				else {
					do_spaces();
					output << x[1];
				}
				Delete(x, 1, 1);
			}
			if (wy == 7)  close(t);
			output << NL;
		}
	}
	break;
	case 8: {
		jumpto(67);
		sgr(9);
		output << "d'Argent" << NL;
		cfg = 9;
	}
	break;
	case 11: {
		jumpto(37);
		sgr(14);
		output << "He's back..." << NL;
	}
	break;
	case 13: {
		jumpto(47);
		sgr(14);
		output << "And this time," << NL;
	}
	break;
	case 14: {
		jumpto(52);
		sgr(14);
		output << "he's wearing tights..." << NL;
	}
	break;
	case 16: {
		jumpto(35);
		sgr(4);
		output << "A Thorsoft of Letchworth game. * Requires EGA" << NL;
	}
	break;
	case 17: {
		jumpto(37);
		sgr(4);
		output << "and HD. * By Mike, Mark and Thomas Thurman." << NL;
	}
	break;
	case 18: {
		jumpto(39);
		sgr(4);
		output << "Sfx archive- ";
		sgr(9);
		output << "Download ";
		sgr(14);
		output << "AVLT10.EXE";
		sgr(9);
		output << " now!";
	}
	break;
	default:
		output << NL;
	}
}

int main(int argc, const char *argv[]) {
	pio_initialize(argc, argv);
	gd = 3;
	gm = 0;
	initgraph(gd, gm, "c:\\bp\\bgi");
	fillchar(cols, sizeof(cols), '\0');
	assign(f, "v:avvypic.ptx");
	reset(f, 1);
	blockread(f, aa, filesize(f));
	close(f);
	putimage(0, 0, aa, 0);
	for (gd = 0; gd <= 27; gd ++)
		for (gm = 0; gm <= 34; gm ++)
			cols[gd][gm + 1] = getpixel(gd, gm);

	restorecrtmode();

	assign(output, "v:avalot.ans");
	rewrite(output);
	normal;
	ed;
	/* assign(output,''); rewrite(output); normal; ed;*/
	assign(t, "v:avalot.txt");
	reset(t);

	for (gm = 0; gm <= 17; gm ++) {
		spaces = 0;
		for (gd = 0; gd <= 27; gd ++) {
			if ((gd == 22) && (gm == 4)) {
				do_spaces();
				sgr(red);
				output << 'ß';
			} else {
				if (cols[gd][2 * gm] == cols[gd][2 * gm + 1]) {
					if (cols[gd][2 * gm] == 0)
						spaces += 1; /* a blank space */
					else {
						do_spaces();

						if (cfg == cols[gd][2 * gm])  output << 'Û';
						else if (cbg == cols[gd][2 * gm])  output << ' ';
						else {
							sgr((cols[gd][2 * gm]) + (cbg * 16));
							cfg = cols[gd][2 * gm];
							output << 'Û';
						}
					}
				} else if ((cols[gd][2 * gm] > 7) && (cols[gd][2 * gm + 1] < 8)) {
					do_spaces();
					sgr(cols[gd][2 * gm] + cols[gd][2 * gm + 1] * 16);
					cfg = cols[gd][2 * gm];
					cbg = cols[gd][2 * gm + 1] * 16;
					output << 'ß';
				} else {
					do_spaces();

					ofg = cfg;
					obg = cbg;
					cbg = cols[gd][2 * gm];
					cfg = cols[gd][2 * gm + 1];

					if ((cbg == ofg) && (cfg == obg)) {
						n = cfg * 16 + cbg;
						if (n > 128)  n -= 128;
						output << 'ß';
					} else {
						n = cbg * 16 + cfg;
						if (n > 128)  n -= 128;
						if ((cfg != ofg) || (cbg != obg))  sgr(n);
						output << 'Ü';
					}

				}
			}
		}
		finishline();
	}
	output << NL;
	normal;
	return EXIT_SUCCESS;
}

} // End of namespace Avalanche.