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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.
*
* $URL$
* $Id$
*
*/
/*
* This code is based on original Hugo Trilogy source code
*
* Copyright (c) 1989-1995 David P. Gray
*
*/
#include "common/system.h"
#include "hugo/hugo.h"
#include "hugo/parser.h"
#include "hugo/file.h"
#include "hugo/display.h"
#include "hugo/route.h"
#include "hugo/util.h"
#include "hugo/sound.h"
#include "hugo/object.h"
namespace Hugo {
#define BLINKS 2 // Cursor blinks per second
#define CX(X) LOWORD(X)
#define CY(Y) HIWORD(Y)
Parser::Parser(HugoEngine *vm) :
_vm(vm), _putIndex(0), _getIndex(0), _checkDoubleF1Fl(false) {
}
Parser::~Parser() {
}
void Parser::keyHandler(uint16 nChar, uint16 nFlags) {
debugC(1, kDebugParser, "keyHandler(%d, %d)", nChar, nFlags);
status_t &gameStatus = _vm->getGameStatus();
bool repeatedFl = (nFlags & 0x4000); // TRUE if key is a repeat
// Process key down event - called from OnKeyDown()
switch (nChar) { // Set various toggle states
case Common::KEYCODE_ESCAPE: // Escape key, may want to QUIT
if (gameStatus.inventoryState == I_ACTIVE) // Remove inventory, if displayed
gameStatus.inventoryState = I_UP;
gameStatus.inventoryObjId = -1; // Deselect any dragged icon
break;
case Common::KEYCODE_END:
case Common::KEYCODE_HOME:
case Common::KEYCODE_LEFT:
case Common::KEYCODE_RIGHT:
case Common::KEYCODE_UP:
case Common::KEYCODE_DOWN:
if (!repeatedFl) {
gameStatus.routeIndex = -1; // Stop any automatic route
_vm->_route->setWalk(nChar); // Direction of hero travel
}
break;
case Common::KEYCODE_F1: // User Help (DOS)
if (_checkDoubleF1Fl)
_vm->_file->instructions();
else
_vm->_screen->userHelp();
_checkDoubleF1Fl = !_checkDoubleF1Fl;
break;
case Common::KEYCODE_F6: // Inventory
showDosInventory();
break;
case Common::KEYCODE_F8: // Turbo mode
_config.turboFl = !_config.turboFl;
break;
case Common::KEYCODE_F2: // Toggle sound
_vm->_sound->toggleSound();
_vm->_sound->toggleMusic();
break;
case Common::KEYCODE_F3: // Repeat last line
gameStatus.recallFl = true;
break;
case Common::KEYCODE_F4: // Save game
case Common::KEYCODE_F5: // Restore game
case Common::KEYCODE_F9: // Boss button
warning("STUB: KeyHandler() - F4-F5-F9 (DOS)");
break;
default: // Any other key
if (!gameStatus.storyModeFl) { // Keyboard disabled
// Add printable keys to ring buffer
uint16 bnext = _putIndex + 1;
if (bnext >= sizeof(_ringBuffer))
bnext = 0;
if (bnext != _getIndex) {
_ringBuffer[_putIndex] = nChar;
_putIndex = bnext;
}
}
break;
}
if (_checkDoubleF1Fl && (nChar != Common::KEYCODE_F1))
_checkDoubleF1Fl = false;
}
/**
* Add any new chars to line buffer and display them.
* If CR pressed, pass line to LineHandler()
*/
void Parser::charHandler() {
debugC(4, kDebugParser, "charHandler");
static int16 lineIndex = 0; // Index into line
static uint32 tick = 0; // For flashing cursor
static char cursor = '_';
static command_t cmdLine; // Build command line
status_t &gameStatus = _vm->getGameStatus();
// Check for one or more characters in ring buffer
while (_getIndex != _putIndex) {
char c = _ringBuffer[_getIndex++];
if (_getIndex >= sizeof(_ringBuffer))
_getIndex = 0;
switch (c) {
case Common::KEYCODE_BACKSPACE: // Rubout key
if (lineIndex)
cmdLine[--lineIndex] = '\0';
break;
case Common::KEYCODE_RETURN: // EOL, pass line to line handler
if (lineIndex && (_vm->_hero->pathType != QUIET)) {
// Remove inventory bar if active
if (gameStatus.inventoryState == I_ACTIVE)
gameStatus.inventoryState = I_UP;
// Call Line handler and reset line
command(cmdLine);
cmdLine[lineIndex = 0] = '\0';
}
break;
default: // Normal text key, add to line
if (lineIndex >= MAX_CHARS) {
//MessageBeep(MB_ICONASTERISK);
warning("STUB: MessageBeep(MB_ICONASTERISK);");
} else if (isprint(c)) {
cmdLine[lineIndex++] = c;
cmdLine[lineIndex] = '\0';
}
break;
}
}
// See if time to blink cursor, set cursor character
if ((tick++ % (TPS / BLINKS)) == 0)
cursor = (cursor == '_') ? ' ' : '_';
// See if recall button pressed
if (gameStatus.recallFl) {
// Copy previous line to current cmdline
gameStatus.recallFl = false;
strcpy(cmdLine, _line);
lineIndex = strlen(cmdLine);
}
sprintf(_vm->_statusLine, ">%s%c", cmdLine, cursor);
sprintf(_vm->_scoreLine, "F1-Help %s Score: %d of %d Sound %s", (_config.turboFl) ? "T" : " ", _vm->getScore(), _vm->getMaxScore(), (_config.soundFl) ? "On" : "Off");
// See if "look" button pressed
if (gameStatus.lookFl) {
command("look around");
gameStatus.lookFl = false;
}
}
/**
* Perform an immediate command. Takes parameters a la sprintf
* Assumes final string will not overrun line[] length
*/
void Parser::command(const char *format, ...) {
debugC(1, kDebugParser, "Command(%s, ...)", format);
va_list marker;
va_start(marker, format);
vsprintf(_line, format, marker);
va_end(marker);
lineHandler();
}
/**
* Locate any member of object name list appearing in command line
*/
bool Parser::isWordPresent(char **wordArr) {
debugC(1, kDebugParser, "isWordPresent(%s)", wordArr[0]);
if (wordArr != 0) {
for (int i = 0; strlen(wordArr[i]); i++) {
if (strstr(_line, wordArr[i]))
return true;
}
}
return false;
}
/**
* Locate word in list of nouns and return ptr to first string in noun list
*/
char *Parser::findNoun() {
debugC(1, kDebugParser, "findNoun()");
for (int i = 0; _vm->_arrayNouns[i]; i++) {
for (int j = 0; strlen(_vm->_arrayNouns[i][j]); j++) {
if (strstr(_line, _vm->_arrayNouns[i][j]))
return _vm->_arrayNouns[i][0];
}
}
return 0;
}
/**
* Locate word in list of verbs and return ptr to first string in verb list
*/
char *Parser::findVerb() {
debugC(1, kDebugParser, "findVerb()");
for (int i = 0; _vm->_arrayVerbs[i]; i++) {
for (int j = 0; strlen(_vm->_arrayVerbs[i][j]); j++) {
if (strstr(_line, _vm->_arrayVerbs[i][j]))
return _vm->_arrayVerbs[i][0];
}
}
return 0;
}
/**
* Show user all objects being carried in a variable width 2 column format
*/
void Parser::showDosInventory() {
debugC(1, kDebugParser, "showDosInventory()");
static const char *blanks = " ";
uint16 index = 0, len1 = 0, len2 = 0;
for (int i = 0; i < _vm->_object->_numObj; i++) { // Find widths of 2 columns
if (_vm->_object->isCarried(i)) {
uint16 len = strlen(_vm->_arrayNouns[_vm->_object->_objects[i].nounIndex][1]);
if (index++ & 1) // Right hand column
len2 = (len > len2) ? len : len2;
else
len1 = (len > len1) ? len : len1;
}
}
len1 += 1; // For gap between columns
if (len1 + len2 < (uint16)strlen(_vm->_textParser[kTBOutro]))
len1 = strlen(_vm->_textParser[kTBOutro]);
char buffer[XBYTES *NUM_ROWS] = "\0";
strncat(buffer, blanks, (len1 + len2 - strlen(_vm->_textParser[kTBIntro])) / 2);
strcat(strcat(buffer, _vm->_textParser[kTBIntro]), "\n");
index = 0;
for (int i = 0; i < _vm->_object->_numObj; i++) { // Assign strings
if (_vm->_object->isCarried(i)) {
if (index++ & 1)
strcat(strcat(buffer, _vm->_arrayNouns[_vm->_object->_objects[i].nounIndex][1]), "\n");
else
strncat(strcat(buffer, _vm->_arrayNouns[_vm->_object->_objects[i].nounIndex][1]), blanks, len1 - strlen(_vm->_arrayNouns[_vm->_object->_objects[i].nounIndex][1]));
}
}
if (index & 1)
strcat(buffer, "\n");
strcat(buffer, _vm->_textParser[kTBOutro]);
Utils::Box(BOX_ANY, "%s", buffer);
}
} // End of namespace Hugo
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