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/* 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.
*/
/* Original name: HELPER The help system unit. */
#include "avalanche/avalanche.h"
#include "avalanche/help.h"
namespace Avalanche {
Help::Help(AvalancheEngine *vm) {
_vm = vm;
_highlightWas = 0;
}
/**
* Loads and draws the chosen page of the help.
* @remarks Originally called 'getme'
*/
void Help::switchPage(byte which) {
// Help icons are 80x20.
_highlightWas = 177; // Forget where the highlight was.
Common::File file;
if (!file.open("help.avd"))
error("AVALANCHE: Help: File not found: help.avd");
file.seek(which * 2);
uint16 offset = file.readUint16LE();
file.seek(offset);
Common::String title = getLine(file);
_vm->_graphics->drawFilledRectangle(Common::Rect(0, 0, 640, 200), kColorBlue);
_vm->_graphics->drawFilledRectangle(Common::Rect(8, 40, 450, 200), kColorWhite);
byte index = file.readByte();
_vm->_graphics->helpDrawButton(-177, index);
// Plot the title:
_vm->_graphics->drawNormalText(title, _vm->_font, 8, 629 - 8 * title.size(), 26, kColorBlack);
_vm->_graphics->drawNormalText(title, _vm->_font, 8, 630 - 8 * title.size(), 25, kColorCyan);
_vm->_graphics->drawBigText("help!", _vm->_font, 8, 549, 1, kColorBlack);
_vm->_graphics->drawBigText("help!", _vm->_font, 8, 550, 0, kColorCyan);
byte y = 0;
do {
Common::String line = getLine(file);
if (!line.empty()) {
if (line.compareTo(Common::String('!')) == 0) // End of the help text is signalled with a '!'.
break;
if (line[0] == '\\') {
line.deleteChar(0);
_vm->_graphics->drawNormalText(line, _vm->_font, 8, 16, 41 + y * 10, kColorRed);
}
else
_vm->_graphics->drawNormalText(line, _vm->_font, 8, 16, 41 + y * 10, kColorBlack);
}
y++;
} while (true);
// We are now at the end of the text. Next we must read the icons:
y = 0;
while (!file.eos()) {
_buttons[y]._trigger = file.readByte();
if (_buttons[y]._trigger == 177)
break;
index = file.readByte();
if (_buttons[y]._trigger != 0)
_vm->_graphics->helpDrawButton(13 + (y + 1) * 27, index);
_buttons[y]._whither = file.readByte(); // This is the position to jump to.
Common::String text = "";
switch (_buttons[y]._trigger) {
case 254:
text = Common::String("Esc");
break;
case 214: // '�'
text = Common::String(24);
break;
case 216: // '�'
text = Common::String(25);
break;
default:
text = Common::String(_buttons[y]._trigger);
break;
}
_vm->_graphics->drawBigText(text, _vm->_font, 8, 589 - (text.size() * 8), 18 + (y + 1) * 27, kColorBlack);
_vm->_graphics->drawBigText(text, _vm->_font, 8, 590 - (text.size() * 8), 17 + (y + 1) * 27, kColorCyan);
y++;
}
_vm->_graphics->refreshScreen();
file.close();
}
Common::String Help::getLine(Common::File &file) {
Common::String line;
byte length = file.readByte();
for (int i = 0; i < length; i++) {
char c = file.readByte();
line += (c ^ 177);
}
return line;
}
byte Help::checkMouse() {
warning("STUB: Help::checkMouse()");
return 0;
}
void Help::continueHelp() {
warning("STUB: Help::continueHelp()");
}
/**
* @remarks Originally called 'boot_help'
*/
void Help::run() {
_vm->_graphics->saveScreen();
_vm->fadeOut();
_vm->_graphics->drawFilledRectangle(Common::Rect(0, 0, 640, 200), kColorBlack); // Black out the whole screen.
_vm->fadeIn();
_vm->_graphics->loadMouse(kCurHelp);
switchPage(0);
continueHelp();
_vm->fadeOut();
_vm->_graphics->restoreScreen();
_vm->_graphics->removeBackup();
_vm->fadeIn();
}
} // End of namespace Avalanche
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