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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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
#include "glk/comprehend/comprehend.h"
#include "glk/comprehend/game_tm.h"
#include "glk/comprehend/pics.h"
#include "common/md5.h"
namespace Glk {
namespace Comprehend {
TalismanGame::TalismanGame() : ComprehendGameV2() {
_gameDataFile = "G0";
_locationGraphicFiles.push_back("RA");
_locationGraphicFiles.push_back("RB");
_locationGraphicFiles.push_back("RC");
_locationGraphicFiles.push_back("RD");
_locationGraphicFiles.push_back("RE");
_locationGraphicFiles.push_back("RF");
_locationGraphicFiles.push_back("RG");
_itemGraphicFiles.push_back("OA");
_itemGraphicFiles.push_back("OB");
_itemGraphicFiles.push_back("OE");
_itemGraphicFiles.push_back("OF");
_titleGraphicFile = "t0";
}
#define STRINGS_SEGMENT1 0x16490
#define STRINGS_SEGMENT2 0x22fa0
#define BANKS_COUNT 15
#define STRINGS_PER_BANK 64
void TalismanGame::loadStrings() {
int bankOffsets[BANKS_COUNT];
int stringOffsets[STRINGS_PER_BANK + 1];
_strings.clear();
_strings2.clear();
Common::File f;
if (!f.open("novel.exe"))
error("novel.exe is a required file");
Common::String md5 = Common::computeStreamMD5AsString(f, 1024);
if (md5 != "0e7f002971acdb055f439020363512ce" && md5 != "2e18c88ce352ebea3e14177703a0485f")
error("Unrecognised novel.exe encountered");
const int STRING_SEGMENTS[2] = { STRINGS_SEGMENT1, STRINGS_SEGMENT2 };
// TODO: Figure out use of string segment 2
for (int strings = 0; strings < 1; ++strings) {
f.seek(STRING_SEGMENTS[strings]);
for (int bank = 0; bank < BANKS_COUNT; ++bank)
bankOffsets[bank] = f.readUint16LE();
// Iterate through the banks loading the strings
for (int bank = 0; bank < BANKS_COUNT; ++bank) {
if (!bankOffsets[bank])
continue;
f.seek(STRING_SEGMENTS[strings] + bankOffsets[bank]);
for (int strNum = 0; strNum <= STRINGS_PER_BANK; ++strNum)
stringOffsets[strNum] = f.readUint16LE();
for (int strNum = 0; strNum < STRINGS_PER_BANK; ++strNum) {
int size = stringOffsets[strNum + 1] - stringOffsets[strNum];
if (size < 0)
size = 0xfff;
f.seek(STRING_SEGMENTS[strings] + bankOffsets[bank] + stringOffsets[strNum]);
FileBuffer fb(&f, size);
Common::String str = parseString(&fb);
if (bank < 8)
_strings.push_back(str);
else
_strings2.push_back(str);
}
}
}
}
void TalismanGame::playGame() {
loadStrings();
ComprehendGameV2::playGame();
}
void TalismanGame::beforeGame() {
// Draw the title
g_comprehend->drawPicture(TITLE_IMAGE);
// Print game information
console_println("Story by Bruce X.Hoffman. Graphics by Ray Redlich and Brian Poff");
console_println("Project managed and IBM version by Jeffrey A. Jay. "
"Copyright 1987 POLARWARE Inc.");
g_comprehend->readChar();
g_comprehend->glk_window_clear(g_comprehend->_bottomWindow);
}
void TalismanGame::beforeTurn() {
_variables[0x62] = g_vm->getRandomNumber(255);
_functionNum = 17;
handleAction(nullptr);
}
void TalismanGame::beforePrompt() {
_functionNum = 14;
handleAction(nullptr);
}
void TalismanGame::afterPrompt() {
if (_savedAction.empty()) {
_functionNum = 19;
handleAction(nullptr);
if (_redoLine == REDO_NONE && _flags[3])
_redoLine = REDO_PROMPT;
} else {
Common::strcpy_s(_inputLine, _savedAction.c_str());
_savedAction.clear();
}
}
void TalismanGame::handleAction(Sentence *sentence) {
if (_flags[62] && _functionNum != _variables[125]) {
_variables[124] = _functionNum;
_functionNum = _variables[126];
}
ComprehendGameV2::handleAction(sentence);
}
void TalismanGame::handleSpecialOpcode() {
switch (_specialOpcode) {
case 15:
// Switch to text screen mode
if (g_comprehend->isGraphicsEnabled()) {
g_comprehend->toggleGraphics();
updateRoomDesc();
}
_functionNum = 19;
handleAction(nullptr);
_redoLine = REDO_TURN;
break;
case 17:
// Switch to graphics mode
if (!g_comprehend->isGraphicsEnabled())
g_comprehend->toggleGraphics();
_updateFlags |= UPDATE_ALL;
update();
_redoLine = REDO_TURN;
break;
default:
break;
}
}
} // namespace Comprehend
} // namespace Glk
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