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authorJohannes Schickel2010-10-13 03:57:44 +0000
committerJohannes Schickel2010-10-13 03:57:44 +0000
commit75e8452b6e6a2bf4fb2f588aa00b428a60d873b5 (patch)
treef29541d55309487a94bd1d38e8b53bb3dde9aec6 /engines/hugo/parser_v1d.cpp
parent48ee83b88957dab86bc763e9ef21a70179fa8679 (diff)
parente9f50882ea5b6beeefa994040be9d3bab6a1f107 (diff)
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OPENGL: Merged from trunk, from rev 52105 to 53396.
This includes an rather hacky attempt to merge all the recent gp2x backend changes into the branch. I suppose the gp2x backend and probably all new backends, i.e. gph, dingux etc., might not compile anymore. Since I have no way of testing those it would be nice if porters could look into getting those up to speed in this branch. svn-id: r53399
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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
+ *
+ */
+
+// parser.c - handles all keyboard/command input
+
+#include "common/system.h"
+
+#include "hugo/hugo.h"
+#include "hugo/parser.h"
+#include "hugo/file.h"
+#include "hugo/schedule.h"
+#include "hugo/util.h"
+
+namespace Hugo {
+
+Parser_v1d::Parser_v1d(HugoEngine &vm) : Parser(vm) {
+}
+
+Parser_v1d::~Parser_v1d() {
+}
+
+// Locate word in list of nouns and return ptr to string in noun list
+// If n is NULL, start at beginning of list, else with n
+char *Parser_v1d::findNextNoun(char *noun) {
+ debugC(1, kDebugParser, "findNextNoun(%s)", noun);
+
+ int currNounIndex = -1;
+ if (noun) { // If noun not NULL, find index
+ for (currNounIndex = 0; _vm._arrayNouns[currNounIndex]; currNounIndex++) {
+ if (noun == _vm._arrayNouns[currNounIndex][0])
+ break;
+ }
+ }
+ for (int i = currNounIndex + 1; _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;
+}
+
+// Test whether hero is close to object. Return TRUE or FALSE
+// If no noun specified, check context flag in object before other tests.
+// If object not near, return suitable string; may be similar object closer
+// If radius is -1, treat radius as infinity
+bool Parser_v1d::isNear(char *verb, char *noun, object_t *obj, char *comment) {
+ debugC(1, kDebugParser, "isNear(%s, %s, obj, %s)", verb, noun, comment);
+
+ if (!noun && !obj->verbOnlyFl) { // No noun specified & object not context senesitive
+ return false;
+ } else if (noun && (noun != _vm._arrayNouns[obj->nounIndex][0])) { // Noun specified & not same as object
+ return false;
+ } else if (obj->carriedFl) { // Object is being carried
+ return true;
+ } else if (obj->screenIndex != *_vm._screen_p) { // Not in same screen
+ if (obj->objValue)
+ strcpy (comment, _vm._textParser[kCmtAny4]);
+ return false;
+ }
+
+ if (obj->cycling == INVISIBLE) {
+ if (obj->seqNumb) { // There is an image
+ strcpy(comment, _vm._textParser[kCmtAny5]);
+ return false;
+ } else { // No image, assume visible
+ if ((obj->radius < 0) ||
+ ((abs(obj->x - _vm._hero->x) <= obj->radius) &&
+ (abs(obj->y - _vm._hero->y - _vm._hero->currImagePtr->y2) <= obj->radius))) {
+ return true;
+ } else {
+ // User is either not close enough (stationary, valueless objects)
+ // or is not carrying it (small, portable objects of value)
+ if (noun) { // Don't say unless object specified
+ if (obj->objValue && (verb != _vm._arrayVerbs[_vm._take][0]))
+ strcpy(comment, _vm._textParser[kCmtAny4]);
+ else
+ strcpy(comment, _vm._textParser[kCmtClose]);
+ }
+ return false;
+ }
+ }
+ }
+
+ if ((obj->radius < 0) ||
+ ((abs(obj->x - _vm._hero->x) <= obj->radius) &&
+ (abs(obj->y + obj->currImagePtr->y2 - _vm._hero->y - _vm._hero->currImagePtr->y2) <= obj->radius))) {
+ return true;
+ } else {
+ // User is either not close enough (stationary, valueless objects)
+ // or is not carrying it (small, portable objects of value)
+ if (noun) { // Don't say unless object specified
+ if (obj->objValue && (verb != _vm._arrayVerbs[_vm._take][0]))
+ strcpy(comment, _vm._textParser[kCmtAny4]);
+ else
+ strcpy(comment, _vm._textParser[kCmtClose]);
+ }
+ return false;
+ }
+
+ return true;
+}
+
+// Test whether supplied verb is one of the common variety for this object
+// say_ok needed for special case of take/drop which may be handled not only
+// here but also in a cmd_list with a donestr string simultaneously
+bool Parser_v1d::isGenericVerb(char *word, object_t *obj) {
+ debugC(1, kDebugParser, "isGenericVerb(%s, object_t *obj)", word);
+
+ if (!obj->genericCmd)
+ return false;
+
+ // Following is equivalent to switch, but couldn't do one
+ if (word == _vm._arrayVerbs[_vm._look][0]) {
+ if ((LOOK & obj->genericCmd) == LOOK)
+ Utils::Box(BOX_ANY, "%s", _vm._textData[obj->dataIndex]);
+ else
+ Utils::Box(BOX_ANY, "%s", _vm._textParser[kTBUnusual_1d]);
+ } else if (word == _vm._arrayVerbs[_vm._take][0]) {
+ if (obj->carriedFl)
+ Utils::Box(BOX_ANY, "%s", _vm._textParser[kTBHave]);
+ else if ((TAKE & obj->genericCmd) == TAKE)
+ takeObject(obj);
+ else if (!obj->verbOnlyFl) // Make sure not taking object in context!
+ Utils::Box(BOX_ANY, "%s", _vm._textParser[kTBNoUse]);
+ else
+ return false;
+ } else if (word == _vm._arrayVerbs[_vm._drop][0]) {
+ if (!obj->carriedFl)
+ Utils::Box(BOX_ANY, "%s", _vm._textParser[kTBDontHave]);
+ else if ((DROP & obj->genericCmd) == DROP)
+ dropObject(obj);
+ else
+ Utils::Box(BOX_ANY, "%s", _vm._textParser[kTBNeed]);
+ } else { // It was not a generic cmd
+ return false;
+ }
+
+ return true;
+}
+
+// Test whether supplied verb is included in the list of allowed verbs for
+// this object. If it is, then perform the tests on it from the cmd list
+// and if it passes, perform the actions in the action list. If the verb
+// is catered for, return TRUE
+bool Parser_v1d::isObjectVerb(char *word, object_t *obj) {
+ debugC(1, kDebugParser, "isObjectVerb(%s, object_t *obj)", word);
+
+ // First, find matching verb in cmd list
+ uint16 cmdIndex = obj->cmdIndex; // ptr to list of commands
+ if (!cmdIndex) // No commands for this obj
+ return false;
+
+ int i;
+ for (i = 0; _vm._cmdList[cmdIndex][i].verbIndex != 0; i++) { // For each cmd
+ if (!strcmp(word, _vm._arrayVerbs[_vm._cmdList[cmdIndex][i].verbIndex][0])) // Is this verb catered for?
+ break;
+ }
+
+ if (_vm._cmdList[cmdIndex][i].verbIndex == 0) // No
+ return false;
+
+ // Verb match found, check all required objects are being carried
+ cmd *cmnd = &_vm._cmdList[cmdIndex][i]; // ptr to struct cmd
+ if (cmnd->reqIndex) { // At least 1 thing in list
+ uint16 *reqs = _vm._arrayReqs[cmnd->reqIndex]; // ptr to list of required objects
+ for (i = 0; reqs[i]; i++) { // for each obj
+ if (!isCarrying(reqs[i])) {
+ Utils::Box(BOX_ANY, "%s", _vm._textData[cmnd->textDataNoCarryIndex]);
+ return true;
+ }
+ }
+ }
+
+ // Required objects are present, now check state is correct
+ if ((obj->state != cmnd->reqState) && (cmnd->reqState != DONT_CARE)){
+ Utils::Box(BOX_ANY, "%s", _vm._textData[cmnd->textDataWrongIndex]);
+ return true;
+ }
+
+ // Everything checked. Change the state and carry out any actions
+ if (cmnd->reqState != DONT_CARE) // Don't change new state if required state didn't care
+ obj->state = cmnd->newState;
+ Utils::Box(BOX_ANY, "%s", _vm._textData[cmnd->textDataDoneIndex]);
+ _vm.scheduler().insertActionList(cmnd->actIndex);
+ // Special case if verb is Take or Drop. Assume additional generic actions
+ if ((word == _vm._arrayVerbs[_vm._take][0]) || (word == _vm._arrayVerbs[_vm._drop][0]))
+ isGenericVerb(word, obj);
+ return true;
+}
+
+// Print text for possible background object. Return TRUE if match found
+// Only match if both verb and noun found. Test_ca will match verb-only
+bool Parser_v1d::isBackgroundWord(char *noun, char *verb, objectList_t obj) {
+ debugC(1, kDebugParser, "isBackgroundWord(%s, %s, object_list_t obj)", noun, verb);
+
+ if (!noun)
+ return false;
+
+ for (int i = 0; obj[i].verbIndex; i++) {
+ if ((verb == _vm._arrayVerbs[obj[i].verbIndex][0]) && (noun == _vm._arrayNouns[obj[i].nounIndex][0])) {
+ Utils::Box(BOX_ANY, "%s", _vm.file().fetchString(obj[i].commentIndex));
+ return true;
+ }
+ }
+ return false;
+}
+
+// Do all things necessary to carry an object
+void Parser_v1d::takeObject(object_t *obj) {
+ debugC(1, kDebugParser, "takeObject(object_t *obj)");
+
+ obj->carriedFl = true;
+ if (obj->seqNumb) // Don't change if no image to display
+ obj->cycling = ALMOST_INVISIBLE;
+
+ _vm.adjustScore(obj->objValue);
+
+ Utils::Box(BOX_ANY, TAKE_TEXT, _vm._arrayNouns[obj->nounIndex][TAKE_NAME]);
+}
+
+// Do all necessary things to drop an object
+void Parser_v1d::dropObject(object_t *obj) {
+ debugC(1, kDebugParser, "dropObject(object_t *obj)");
+
+ obj->carriedFl = false;
+ obj->screenIndex = *_vm._screen_p;
+ if (obj->seqNumb) // Don't change if no image to display
+ obj->cycling = NOT_CYCLING;
+ obj->x = _vm._hero->x - 1;
+ obj->y = _vm._hero->y + _vm._hero->currImagePtr->y2 - 1;
+ _vm.adjustScore(-obj->objValue);
+ Utils::Box(BOX_ANY, "%s", _vm._textParser[kTBOk]);
+}
+
+// Print text for possible background object. Return TRUE if match found
+// If test_noun TRUE, must have a noun given
+bool Parser_v1d::isCatchallVerb(bool testNounFl, char *noun, char *verb, objectList_t obj) {
+ debugC(1, kDebugParser, "isCatchallVerb(%d, %s, %s, object_list_t obj)", (testNounFl) ? 1 : 0, noun, verb);
+
+ if (testNounFl && !noun)
+ return false;
+
+ for (int i = 0; obj[i].verbIndex; i++) {
+ if ((verb == _vm._arrayVerbs[obj[i].verbIndex][0]) && ((noun == _vm._arrayNouns[obj[i].nounIndex][0]) || (obj[i].nounIndex == 0))) {
+ Utils::Box(BOX_ANY, "%s", _vm.file().fetchString(obj[i].commentIndex));
+ return true;
+ }
+ }
+ return false;
+}
+
+// Parse the user's line of text input. Generate events as necessary
+void Parser_v1d::lineHandler() {
+ debugC(1, kDebugParser, "lineHandler()");
+
+ object_t *obj;
+ status_t &gameStatus = _vm.getGameStatus();
+ char farComment[XBYTES * 5] = ""; // hold 5 line comment if object not nearby
+
+// Reset_prompt_line ();
+ Utils::strlwr(_line); // Convert to lower case
+
+ if (!strcmp("exit", _line) || strstr(_line, "quit")) {
+ if (Utils::Box(BOX_YESNO, "%s", _vm._textParser[kTBExit_1d]) != 0)
+ _vm.endGame();
+ return;
+ }
+
+ // SAVE/RESTORE
+ if (!strcmp("save", _line)) {
+ if (gameStatus.gameOverFl)
+ Utils::gameOverMsg();
+ else
+// _vm.file().saveOrRestore(true);
+ warning("STUB: saveOrRestore()");
+ return;
+ }
+
+ if (!strcmp("restore", _line)) {
+// _vm.file().saveOrRestore(false);
+ warning("STUB: saveOrRestore()");
+ return;
+ }
+
+ if (*_line == '\0') // Empty line
+ return;
+
+ if (strspn(_line, " ") == strlen(_line)) // Nothing but spaces!
+ return;
+
+ if (gameStatus.gameOverFl) { // No commands allowed!
+ Utils::gameOverMsg();
+ return;
+ }
+
+ // Find the first verb in the line
+ char *verb = findVerb();
+ char *noun = 0; // Noun not found yet
+
+ if (verb) { // OK, verb found. Try to match with object
+ do {
+ noun = findNextNoun(noun); // Find a noun in the line
+ // Must try at least once for objects allowing verb-context
+ for (int i = 0; i < _vm._numObj; i++) {
+ obj = &_vm._objects[i];
+ if (isNear(verb, noun, obj, farComment)) {
+ if (isObjectVerb(verb, obj) // Foreground object
+ || isGenericVerb(verb, obj)) // Common action type
+ return;
+ }
+ }
+ if ((*farComment == '\0') && isBackgroundWord(noun, verb, _vm._backgroundObjects[*_vm._screen_p]))
+ return;
+ } while (noun);
+ }
+ noun = findNextNoun(noun);
+ if (*farComment != '\0') // An object matched but not near enough
+ Utils::Box(BOX_ANY, "%s", farComment);
+ else if (!isCatchallVerb(true, noun, verb, _vm._catchallList) &&
+ !isCatchallVerb(false, noun, verb, _vm._backgroundObjects[*_vm._screen_p]) &&
+ !isCatchallVerb(false, noun, verb, _vm._catchallList))
+ Utils::Box(BOX_ANY, "%s", _vm._textParser[kTBEh_1d]);
+}
+
+} // End of namespace Hugo