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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.
*
* MIT License:
*
* Copyright (c) 2009 Alexei Svitkine, Eugene Sandulenko
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
*/
#include "wage/wage.h"
#include "wage/entities.h"
#include "wage/script.h"
#include "wage/world.h"
#include "common/stream.h"
namespace Wage {
Script::Script(Common::SeekableReadStream *data) : _data(data) {
convertToText();
}
Script::~Script() {
for (uint i = 0; i < _scriptText.size(); i++) {
delete _scriptText[i];
}
delete _data;
}
void Script::print() {
for (uint i = 0; i < _scriptText.size(); i++) {
debug(4, "%d [%04x]: %s", i, _scriptText[i]->offset, _scriptText[i]->line.c_str());
}
}
void Script::printLine(int offset) {
for (uint i = 0; i < _scriptText.size(); i++)
if (_scriptText[i]->offset >= offset) {
debug(4, "%d [%04x]: %s", i, _scriptText[i]->offset, _scriptText[i]->line.c_str());
break;
}
}
bool Script::execute(World *world, int loopCount, String *inputText, Designed *inputClick, WageEngine *callbacks) {
_world = world;
_loopCount = loopCount;
_inputText = inputText;
_inputClick = inputClick;
_callbacks = callbacks;
_handled = false;
Common::String input;
if (inputText)
input = *inputText;
_data->seek(12);
while (_data->pos() < _data->size()) {
printLine(_data->pos());
byte command = _data->readByte();
switch(command) {
case 0x80: // IF
processIf();
break;
case 0x87: // EXIT
debug(6, "exit at offset %d", _data->pos() - 1);
return true;
case 0x89: // MOVE
{
Scene *currentScene = _world->_player->_currentScene;
processMove();
if (_world->_player->_currentScene != currentScene)
return true;
break;
}
case 0x8B: // PRINT
{
Operand *op = readOperand();
// TODO check op type is string or number, or something good...
appendText(op->toString());
delete op;
byte d = _data->readByte();
if (d != 0xFD)
warning("Operand 0x8B (PRINT) End Byte != 0xFD");
break;
}
case 0x8C: // SOUND
{
Operand *op = readOperand();
// TODO check op type is string.
_handled = true;
callbacks->playSound(op->toString());
delete op;
byte d = _data->readByte();
if (d != 0xFD)
warning("Operand 0x8B (PRINT) End Byte != 0xFD");
break;
}
case 0x8E: // LET
processLet();
break;
case 0x95: // MENU
{
Operand *op = readStringOperand(); // allows empty menu
// TODO check op type is string.
_callbacks->setMenu(op->toString());
byte d = _data->readByte();
if (d != 0xFD)
warning("Operand 0x8B (PRINT) End Byte != 0xFD");
}
case 0x88: // END
break;
default:
debug(0, "Unknown opcode: %d", _data->pos());
}
}
if (_world->_globalScript != this) {
debug(1, "Executing global script...");
bool globalHandled = _world->_globalScript->execute(_world, _loopCount, &input, _inputClick, _callbacks);
if (globalHandled)
_handled = true;
} else if (!input.empty()) {
input.toLowercase();
if (input.equals("n") || input.contains("north")) {
handleMoveCommand(Scene::NORTH, "north");
} else if (input.equals("e") || input.contains("east")) {
handleMoveCommand(Scene::EAST, "east");
} else if (input.equals("s") || input.contains("south")) {
handleMoveCommand(Scene::SOUTH, "south");
} else if (input.equals("w") || input.contains("west")) {
handleMoveCommand(Scene::WEST, "west");
} else if (input.hasPrefix("take ")) {
handleTakeCommand(&input.c_str()[5]);
} else if (input.hasPrefix("get ")) {
handleTakeCommand(&input.c_str()[4]);
} else if (input.hasPrefix("pick up ")) {
handleTakeCommand(&input.c_str()[8]);
} else if (input.hasPrefix("drop ")) {
handleDropCommand(&input.c_str()[5]);
} else if (input.hasPrefix("aim ")) {
handleAimCommand(&input.c_str()[4]);
} else if (input.hasPrefix("wear ")) {
handleWearCommand(&input.c_str()[5]);
} else if (input.hasPrefix("put on ")) {
handleWearCommand(&input.c_str()[7]);
} else if (input.hasPrefix("offer ")) {
handleOfferCommand(&input.c_str()[6]);
} else if (input.contains("look")) {
handleLookCommand();
} else if (input.contains("inventory")) {
handleInventoryCommand();
} else if (input.contains("status")) {
handleStatusCommand();
} else if (input.contains("rest") || input.equals("wait")) {
handleRestCommand();
} else if (callbacks->getOffer() != NULL && input.contains("accept")) {
handleAcceptCommand();
} else {
Chr *player = _world->_player;
WeaponArray *weapons = player->getWeapons(true);
for (WeaponArray::const_iterator weapon = weapons->begin(); weapon != weapons->end(); ++weapon) {
if (tryAttack(*weapon, input)) {
handleAttack(*weapon);
break;
}
}
delete weapons;
}
// TODO: weapons, offer, etc...
} else if (_inputClick->_classType == OBJ) {
Obj *obj = (Obj *)_inputClick;
if (obj->_type != Obj::IMMOBILE_OBJECT) {
takeObj(obj);
} else {
appendText(obj->_clickMessage);
}
}
return _handled;
}
Script::Operand *Script::readOperand() {
byte operandType = _data->readByte();
debug(7, "%x: readOperand: 0x%x", _data->pos(), operandType);
Context *cont = &_world->_player->_context;
switch (operandType) {
case 0xA0: // TEXT$
return new Operand(_inputText, TEXT_INPUT);
case 0xA1:
return new Operand(_inputClick, CLICK_INPUT);
case 0xC0: // STORAGE@
return new Operand(_world->_storageScene, SCENE);
case 0xC1: // SCENE@
return new Operand(_world->_player->_currentScene, SCENE);
case 0xC2: // PLAYER@
return new Operand(_world->_player, CHR);
case 0xC3: // MONSTER@
return new Operand(_callbacks->getMonster(), CHR);
case 0xC4: // RANDOMSCN@
return new Operand(_world->_orderedScenes[_callbacks->_rnd->getRandomNumber(_world->_orderedScenes.size())], SCENE);
case 0xC5: // RANDOMCHR@
return new Operand(_world->_orderedChrs[_callbacks->_rnd->getRandomNumber(_world->_orderedChrs.size())], CHR);
case 0xC6: // RANDOMOBJ@
return new Operand(_world->_orderedObjs[_callbacks->_rnd->getRandomNumber(_world->_orderedObjs.size())], OBJ);
case 0xB0: // VISITS#
return new Operand(cont->_visits, NUMBER);
case 0xB1: // RANDOM# for Star Trek, but VISITS# for some other games?
return new Operand(1 + _callbacks->_rnd->getRandomNumber(100), NUMBER);
case 0xB5: // RANDOM# // A random number between 1 and 100.
return new Operand(1 + _callbacks->_rnd->getRandomNumber(100), NUMBER);
case 0xB2: // LOOP#
return new Operand(_loopCount, NUMBER);
case 0xB3: // VICTORY#
return new Operand(cont->_kills, NUMBER);
case 0xB4: // BADCOPY#
return new Operand(0, NUMBER); // \?\?\??
case 0xFF:
{
// user variable
int value = _data->readByte();
// TODO: Verify that we're using the right index.
return new Operand(cont->_userVariables[value - 1], NUMBER);
}
case 0xD0:
return new Operand(cont->_statVariables[PHYS_STR_BAS], NUMBER);
case 0xD1:
return new Operand(cont->_statVariables[PHYS_HIT_BAS], NUMBER);
case 0xD2:
return new Operand(cont->_statVariables[PHYS_ARM_BAS], NUMBER);
case 0xD3:
return new Operand(cont->_statVariables[PHYS_ACC_BAS], NUMBER);
case 0xD4:
return new Operand(cont->_statVariables[SPIR_STR_BAS], NUMBER);
case 0xD5:
return new Operand(cont->_statVariables[SPIR_HIT_BAS], NUMBER);
case 0xD6:
return new Operand(cont->_statVariables[SPIR_ARM_BAS], NUMBER);
case 0xD7:
return new Operand(cont->_statVariables[SPIR_ACC_BAS], NUMBER);
case 0xD8:
return new Operand(cont->_statVariables[PHYS_SPE_BAS], NUMBER);
case 0xE0:
return new Operand(cont->_statVariables[PHYS_STR_CUR], NUMBER);
case 0xE1:
return new Operand(cont->_statVariables[PHYS_HIT_CUR], NUMBER);
case 0xE2:
return new Operand(cont->_statVariables[PHYS_ARM_CUR], NUMBER);
case 0xE3:
return new Operand(cont->_statVariables[PHYS_ACC_CUR], NUMBER);
case 0xE4:
return new Operand(cont->_statVariables[SPIR_STR_CUR], NUMBER);
case 0xE5:
return new Operand(cont->_statVariables[SPIR_HIT_CUR], NUMBER);
case 0xE6:
return new Operand(cont->_statVariables[SPIR_ARM_CUR], NUMBER);
case 0xE7:
return new Operand(cont->_statVariables[SPIR_ACC_CUR], NUMBER);
case 0xE8:
return new Operand(cont->_statVariables[PHYS_SPE_CUR], NUMBER);
default:
if (operandType >= 0x20 && operandType < 0x80) {
_data->seek(-1, SEEK_CUR);
return readStringOperand();
} else {
debug("Dunno what %x is (index=%d)!\n", operandType, _data->pos()-1);
}
return NULL;
}
}
void Script::assign(byte operandType, int uservar, uint16 value) {
Context *cont = &_world->_player->_context;
switch (operandType) {
case 0xFF:
cont->_userVariables[uservar - 1] = value;
break;
case 0xD0:
cont->_statVariables[PHYS_STR_BAS] = value;
break;
case 0xD1:
cont->_statVariables[PHYS_HIT_BAS] = value;
break;
case 0xD2:
cont->_statVariables[PHYS_ARM_BAS] = value;
break;
case 0xD3:
cont->_statVariables[PHYS_ACC_BAS] = value;
break;
case 0xD4:
cont->_statVariables[SPIR_STR_BAS] = value;
break;
case 0xD5:
cont->_statVariables[SPIR_HIT_BAS] = value;
break;
case 0xD6:
cont->_statVariables[SPIR_ARM_BAS] = value;
break;
case 0xD7:
cont->_statVariables[SPIR_ACC_BAS] = value;
break;
case 0xD8:
cont->_statVariables[PHYS_SPE_BAS] = value;
break;
case 0xE0:
cont->_statVariables[PHYS_STR_CUR] = value;
break;
case 0xE1:
cont->_statVariables[PHYS_HIT_CUR] = value;
break;
case 0xE2:
cont->_statVariables[PHYS_ARM_CUR] = value;
break;
case 0xE3:
cont->_statVariables[PHYS_ACC_CUR] = value;
break;
case 0xE4:
cont->_statVariables[SPIR_STR_CUR] = value;
break;
case 0xE5:
cont->_statVariables[SPIR_HIT_CUR] = value;
break;
case 0xE6:
cont->_statVariables[SPIR_ARM_CUR] = value;
break;
case 0xE7:
cont->_statVariables[SPIR_ACC_CUR] = value;
break;
case 0xE8:
cont->_statVariables[PHYS_SPE_CUR] = value;
break;
default:
debug("No idea what I'm supposed to assign! (%x at %d)!\n", operandType, _data->pos()-1);
}
}
Script::Operand *Script::readStringOperand() {
String *sb;
bool allDigits = true;
sb = new String();
while (true) {
byte c = _data->readByte();
if (c >= 0x20 && c < 0x80)
*sb += c;
else
break;
if (c < '0' || c > '9')
allDigits = false;
}
_data->seek(-1, SEEK_CUR);
if (allDigits && sb->size() > 0) {
int r = atol(sb->c_str());
delete sb;
return new Operand(r, NUMBER);
} else {
// TODO: This string could be a room name or something like that.
return new Operand(sb, STRING);
}
}
const char *Script::readOperator() {
byte cmd = _data->readByte();
debug(7, "readOperator: 0x%x", cmd);
switch (cmd) {
case 0x81:
return "=";
case 0x82:
return "<";
case 0x83:
return ">";
case 0x8f:
return "+";
case 0x90:
return "-";
case 0x91:
return "*";
case 0x92:
return "/";
case 0x93:
return "==";
case 0x94:
return ">>";
case 0xfd:
return ";";
default:
warning("UNKNOWN OP %x", cmd);
}
return NULL;
}
void Script::processIf() {
int logicalOp = 0; // 0 => initial, 1 => and, 2 => or
bool result = true;
bool done = false;
do {
Operand *lhs = readOperand();
const char *op = readOperator();
Operand *rhs = readOperand();
bool condResult = eval(lhs, op, rhs);
delete lhs;
delete rhs;
if (logicalOp == 1) {
result = (result && condResult);
} else if (logicalOp == 2) {
result = (result || condResult);
} else { // logicalOp == 0
result = condResult;
}
byte logical = _data->readByte();
if (logical == 0x84) {
logicalOp = 1; // and
} else if (logical == 0x85) {
logicalOp = 2; // or
} else if (logical == 0xFE) {
done = true; // then
}
} while (!done);
if (result == false) {
skipBlock();
}
}
void Script::skipIf() {
do {
Operand *lhs = readOperand();
readOperator();
Operand *rhs = readOperand();
delete lhs;
delete rhs;
} while (_data->readByte() != 0xFE);
}
void Script::skipBlock() {
int nesting = 1;
while (true) {
byte op = _data->readByte();
if (_data->eos())
return;
if (op == 0x80) { // IF
nesting++;
skipIf();
} else if (op == 0x88 || op == 0x87) { // END or EXIT
nesting--;
if (nesting == 0) {
return;
}
} else switch (op) {
case 0x8B: // PRINT
case 0x8C: // SOUND
case 0x8E: // LET
case 0x95: // MENU
while (_data->readByte() != 0xFD)
;
}
}
}
enum {
kCompEqNumNum,
kCompEqObjScene,
kCompEqChrScene,
kCompEqObjChr,
kCompEqChrChr,
kCompEqSceneScene,
kCompEqStringTextInput,
kCompEqTextInputString,
kCompEqNumberTextInput,
kCompEqTextInputNumber,
kCompLtNumNum,
kCompLtStringTextInput,
kCompLtTextInputString,
kCompLtObjChr,
kCompLtChrObj,
kCompLtObjScene,
kCompGtNumNum,
kCompGtStringString,
kCompGtChrScene,
kMoveObjChr,
kMoveObjScene,
kMoveChrScene
};
struct Comparator {
char op;
OperandType o1;
OperandType o2;
int cmp;
} static comparators[] = {
{ '=', NUMBER, NUMBER, kCompEqNumNum },
{ '=', OBJ, SCENE, kCompEqObjScene },
{ '=', CHR, SCENE, kCompEqChrScene },
{ '=', OBJ, CHR, kCompEqObjChr },
{ '=', CHR, CHR, kCompEqChrChr },
{ '=', SCENE, SCENE, kCompEqSceneScene },
{ '=', STRING, TEXT_INPUT, kCompEqStringTextInput },
{ '=', TEXT_INPUT, STRING, kCompEqTextInputString },
{ '=', NUMBER, TEXT_INPUT, kCompEqNumberTextInput },
{ '=', TEXT_INPUT, NUMBER, kCompEqTextInputNumber },
{ '<', NUMBER, NUMBER, kCompLtNumNum },
{ '<', STRING, TEXT_INPUT, kCompLtStringTextInput },
{ '<', TEXT_INPUT, STRING, kCompLtTextInputString },
{ '<', OBJ, CHR, kCompLtObjChr },
{ '<', CHR, OBJ, kCompLtChrObj },
{ '<', OBJ, SCENE, kCompLtObjScene },
{ '<', CHR, CHR, kCompEqChrChr }, // Same logic as =
{ '<', SCENE, SCENE, kCompEqSceneScene },
{ '>', NUMBER, NUMBER, kCompGtNumNum },
{ '>', TEXT_INPUT, STRING, kCompLtTextInputString }, // Same logic as <
//FIXME: this prevents the below cases from working due to exact
//matches taking precedence over conversions...
//{ '>', STRING, STRING, kCompGtStringString }, // Same logic as <
{ '>', OBJ, CHR, kCompLtObjChr }, // Same logic as <
{ '>', OBJ, SCENE, kCompLtObjScene }, // Same logic as <
{ '>', CHR, SCENE, kCompGtChrScene },
{ 'M', OBJ, CHR, kMoveObjChr },
{ 'M', OBJ, SCENE, kMoveObjScene },
{ 'M', CHR, SCENE, kMoveChrScene },
{ 0, OBJ, OBJ, 0 }
};
bool Script::compare(Operand *o1, Operand *o2, int comparator) {
switch(comparator) {
case kCompEqNumNum:
return o1->_value.number == o2->_value.number;
case kCompEqObjScene:
for (ObjList::const_iterator it = o2->_value.scene->_objs.begin(); it != o2->_value.scene->_objs.end(); ++it)
if (*it == o1->_value.obj)
return true;
return false;
case kCompEqChrScene:
for (ChrList::const_iterator it = o2->_value.scene->_chrs.begin(); it != o2->_value.scene->_chrs.end(); ++it)
if (*it == o1->_value.chr)
return true;
return false;
case kCompEqObjChr:
for (ObjArray::const_iterator it = o2->_value.chr->_inventory.begin(); it != o2->_value.chr->_inventory.end(); ++it)
if (*it == o1->_value.obj)
return true;
return false;
case kCompEqChrChr:
return o1->_value.chr == o2->_value.chr;
case kCompEqSceneScene:
return o1->_value.scene == o2->_value.scene;
case kCompEqStringTextInput:
if (_inputText == NULL) {
return false;
} else {
Common::String s1(*_inputText), s2(*o1->_value.string);
s1.toLowercase();
s2.toLowercase();
return s1.contains(s2);
}
case kCompEqTextInputString:
return compare(o2, o1, kCompEqStringTextInput);
case kCompEqNumberTextInput:
if (_inputText == NULL) {
return false;
} else {
Common::String s1(*_inputText), s2(o1->toString());
s1.toLowercase();
s2.toLowercase();
return s1.contains(s2);
}
case kCompEqTextInputNumber:
if (_inputText == NULL) {
return false;
} else {
Common::String s1(*_inputText), s2(o2->toString());
s1.toLowercase();
s2.toLowercase();
return s1.contains(s2);
}
case kCompLtNumNum:
return o1->_value.number < o2->_value.number;
case kCompLtStringTextInput:
return !compare(o1, o2, kCompEqStringTextInput);
case kCompLtTextInputString:
return !compare(o2, o1, kCompEqStringTextInput);
case kCompLtObjChr:
return o1->_value.obj->_currentOwner != o2->_value.chr;
case kCompLtChrObj:
return compare(o2, o1, kCompLtObjChr);
case kCompLtObjScene:
return o1->_value.obj->_currentScene != o2->_value.scene;
case kCompGtNumNum:
return o1->_value.number > o2->_value.number;
case kCompGtStringString:
return o1->_value.string == o2->_value.string;
case kCompGtChrScene:
return (o1->_value.chr != NULL && o1->_value.chr->_currentScene != o2->_value.scene);
case kMoveObjChr:
if (o1->_value.obj->_currentOwner != o2->_value.chr) {
_world->move(o1->_value.obj, o2->_value.chr);
_handled = true; // TODO: Is this correct?
}
break;
case kMoveObjScene:
if (o1->_value.obj->_currentScene != o2->_value.scene) {
_world->move(o1->_value.obj, o2->_value.scene);
// Note: This shouldn't call setHandled() - see
// Sultan's Palace 'Food and Drink' scene.
}
break;
case kMoveChrScene:
_world->move(o1->_value.chr, o2->_value.scene);
_handled = true; // TODO: Is this correct?
break;
}
return false;
}
bool Script::evaluatePair(Operand *lhs, const char *op, Operand *rhs) {
for (int cmp = 0; comparators[cmp].op != 0; cmp++) {
if (comparators[cmp].op != op[0])
continue;
if (comparators[cmp].o1 == lhs->_type && comparators[cmp].o2 == rhs->_type)
return compare(lhs, rhs, comparators[cmp].cmp);
}
// Now, try partial matches.
Operand *c1, *c2;
for (int cmp = 0; comparators[cmp].op != 0; cmp++) {
if (comparators[cmp].op != op[0])
continue;
if (comparators[cmp].o1 == lhs->_type &&
(c2 = convertOperand(rhs, comparators[cmp].o2)) != NULL) {
bool res = compare(lhs, c2, comparators[cmp].cmp);
delete c2;
return res;
} else if (comparators[cmp].o2 == rhs->_type &&
(c1 = convertOperand(lhs, comparators[cmp].o1)) != NULL) {
bool res = compare(c1, rhs, comparators[cmp].cmp);
delete c1;
return res;
}
}
// Now, try double conversion.
for (int cmp = 0; comparators[cmp].op != 0; cmp++) {
if (comparators[cmp].op != op[0])
continue;
if (comparators[cmp].o1 == lhs->_type || comparators[cmp].o2 == rhs->_type)
continue;
if ((c1 = convertOperand(lhs, comparators[cmp].o1)) != NULL) {
if ((c2 = convertOperand(rhs, comparators[cmp].o2)) != NULL) {
bool res = compare(c1, c2, comparators[cmp].cmp);
delete c1;
delete c2;
return res;
}
delete c1;
}
}
warning("UNHANDLED CASE: [lhs=%d/%s, op=%s rhs=%d/%s]",
lhs->_type, lhs->toString().c_str(), op, rhs->_type, rhs->toString().c_str());
return false;
}
bool Script::eval(Operand *lhs, const char *op, Operand *rhs) {
bool result = false;
if (lhs->_type == CLICK_INPUT || rhs->_type == CLICK_INPUT) {
return evalClickCondition(lhs, op, rhs);
} else if (!strcmp(op, "==") || !strcmp(op, ">>")) {
// TODO: check if >> can be used for click inputs and if == can be used for other things
// exact string match
if (lhs->_type == TEXT_INPUT) {
if ((rhs->_type != STRING && rhs->_type != NUMBER) || _inputText == NULL) {
result = false;
} else {
result = _inputText->equalsIgnoreCase(rhs->toString());
}
} else if (rhs->_type == TEXT_INPUT) {
if ((lhs->_type != STRING && lhs->_type != NUMBER) || _inputText == NULL) {
result = false;
} else {
result = _inputText->equalsIgnoreCase(lhs->toString());
}
} else {
error("UNHANDLED CASE: [lhs=%d/%s, rhs=%d/%s]",
lhs->_type, lhs->toString().c_str(), rhs->_type, rhs->toString().c_str());
}
if (!strcmp(op, ">>")) {
result = !result;
}
return result;
} else {
return evaluatePair(lhs, op, rhs);
}
return false;
}
Script::Operand *Script::convertOperand(Operand *operand, int type) {
if (operand->_type == type)
error("Incorrect conversion to type %d", type);
if (type == SCENE) {
if (operand->_type == STRING || operand->_type == NUMBER) {
Common::String key(operand->toString());
key.toLowercase();
if (_world->_scenes.contains(key))
return new Operand(_world->_scenes[key], SCENE);
}
} else if (type == OBJ) {
if (operand->_type == STRING || operand->_type == NUMBER) {
Common::String key = operand->toString();
key.toLowercase();
if (_world->_objs.contains(key))
return new Operand(_world->_objs[key], OBJ);
} else if (operand->_type == CLICK_INPUT) {
if (_inputClick->_classType == OBJ)
return new Operand(_inputClick, OBJ);
}
} else if (type == CHR) {
if (operand->_type == STRING || operand->_type == NUMBER) {
Common::String key = operand->toString();
key.toLowercase();
if (_world->_chrs.contains(key))
return new Operand(_world->_chrs[key], CHR);
} else if (operand->_type == CLICK_INPUT) {
if (_inputClick->_classType == CHR)
return new Operand(_inputClick, CHR);
}
}
return NULL;
}
bool Script::evalClickEquality(Operand *lhs, Operand *rhs, bool partialMatch) {
bool result = false;
if (lhs->_value.obj == NULL || rhs->_value.obj == NULL) {
result = false;
} else if (lhs->_value.obj == rhs->_value.obj) {
result = true;
} else if (rhs->_type == STRING) {
Common::String str = rhs->toString();
str.toLowercase();
debug(9, "evalClickEquality(%s, %s, %d)", lhs->_value.designed->_name.c_str(), rhs->_value.designed->_name.c_str(), partialMatch);
debug(9, "l: %d r: %d (ch: %d ob: %d)", lhs->_type, rhs->_type, CHR, OBJ);
debug(9, "class: %d", lhs->_value.inputClick->_classType);
if (lhs->_value.inputClick->_classType == CHR || lhs->_value.inputClick->_classType == OBJ) {
Common::String name = lhs->_value.designed->_name;
name.toLowercase();
warning("%s <> %s", name.c_str(), str.c_str());
if (partialMatch)
result = name.contains(str);
else
result = name.equals(str);
}
debug(9, "result: %d", result);
}
return result;
}
bool Script::evalClickCondition(Operand *lhs, const char *op, Operand *rhs) {
// TODO: check if >> can be used for click inputs
if (strcmp(op, "==") && strcmp(op, "=") && strcmp(op, "<") && strcmp(op, ">")) {
error("Unknown operation '%s' for Script::evalClickCondition", op);
}
bool partialMatch = strcmp(op, "==");
bool result;
if (lhs->_type == CLICK_INPUT) {
result = evalClickEquality(lhs, rhs, partialMatch);
} else {
result = evalClickEquality(rhs, lhs, partialMatch);
}
if (!strcmp(op, "<") || !strcmp(op, ">")) {
// CLICK$<FOO only matches if there was a click
if (_inputClick == NULL) {
result = false;
} else {
result = !result;
}
}
return result;
}
void Script::takeObj(Obj *obj) {
if ((int)_world->_player->_inventory.size() >= _world->_player->_maximumCarriedObjects) {
appendText("Your pack is full, you must drop something.");
} else {
_world->move(obj, _world->_player);
int type = _world->_player->wearObjIfPossible(obj);
if (type == Chr::HEAD_ARMOR) {
appendText(String("You are now wearing the ") + obj->_name + ".");
} else if (type == Chr::BODY_ARMOR) {
appendText(String("You are now wearing the ") + obj->_name + ".");
} else if (type == Chr::SHIELD_ARMOR) {
appendText(String("You are now wearing the ") + obj->_name + ".");
} else if (type == Chr::MAGIC_ARMOR) {
appendText(String("You are now wearing the ") + obj->_name + ".");
} else {
appendText(String("You now have the ") + obj->_name + ".");
}
appendText(obj->_clickMessage);
}
}
void Script::processMove() {
Operand *what = readOperand();
byte skip = _data->readByte();
if (skip != 0x8a)
error("Incorrect operator for MOVE: %02x", skip);
Operand *to = readOperand();
skip = _data->readByte();
if (skip != 0xfd)
error("No end for MOVE: %02x", skip);
evaluatePair(what, "M", to);
delete what;
delete to;
}
void Script::processLet() {
const char *lastOp = NULL;
int16 result = 0;
int operandType = _data->readByte();
int uservar = 0;
if (operandType == 0xff) {
uservar = _data->readByte();
}
byte eq = _data->readByte(); // skip "=" operator
debug(7, "processLet: 0x%x, uservar: 0x%x, eq: 0x%x", operandType, uservar, eq);
do {
Operand *operand = readOperand();
// TODO assert that value is NUMBER
int16 value = operand->_value.number;
delete operand;
if (lastOp != NULL) {
if (lastOp[0] == '+')
result += value;
else if (lastOp[0] == '-')
result -= value;
else if (lastOp[0] == '/')
result = (int16)(value == 0 ? 0 : result / value);
else if (lastOp[0] == '*')
result *= value;
} else {
result = value;
}
lastOp = readOperator();
if (lastOp[0] == ';')
break;
} while (true);
//System.out.println("processLet " + buildStringFromOffset(oldIndex - 1, index - oldIndex + 1) + "}");
assign(operandType, uservar, result);
}
void Script::appendText(String str) {
_handled = true;
_callbacks->appendText(str);
}
static const int directionsX[] = { 0, 0, 1, -1 };
static const int directionsY[] = { -1, 1, 0, 0 };
void Script::handleMoveCommand(Scene::Directions dir, const char *dirName) {
Scene *playerScene = _world->_player->_currentScene;
Common::String msg(playerScene->_messages[dir]);
warning("Dir: %s msg: %s", dirName, msg.c_str());
if (!playerScene->_blocked[dir]) {
int destX = playerScene->_worldX + directionsX[dir];
int destY = playerScene->_worldY + directionsY[dir];
Scene *scene = _world->getSceneAt(destX, destY);
if (scene != NULL) {
if (msg.size() > 0) {
appendText(msg);
}
_world->move(_world->_player, scene);
return;
}
}
if (msg.size() > 0) {
appendText(msg);
} else {
Common::String txt("You can't go ");
txt += dirName;
txt += ".";
appendText(txt);
}
}
void Script::handleLookCommand() {
appendText(_world->_player->_currentScene->_text);
Common::String *items = getGroundItemsList(_world->_player->_currentScene);
if (items != NULL) {
appendText(*items);
delete items;
}
}
Common::String *Script::getGroundItemsList(Scene *scene) {
ObjArray objs;
for (ObjList::const_iterator it = scene->_objs.begin(); it != scene->_objs.end(); ++it)
if ((*it)->_type != Obj::IMMOBILE_OBJECT)
objs.push_back(*it);
if (objs.size()) {
Common::String *res = new Common::String("On the ground you see ");
appendObjNames(*res, objs);
return res;
}
return NULL;
}
void Script::appendObjNames(Common::String &str, ObjArray &objs) {
for (uint i = 0; i < objs.size(); i++) {
Obj *obj = objs[i];
if (!obj->_namePlural)
str += getIndefiniteArticle(obj->_name);
else
str += "some ";
str += obj->_name;
if (i == objs.size() - 1) {
str += ".";
} else if (i == objs.size() - 2) {
if (objs.size() > 2)
str += ",";
str += " and ";
} else {
str += ", ";
}
}
}
void Script::handleInventoryCommand() {
warning("STUB: handleInventoryCommand");
}
void Script::handleStatusCommand() {
warning("STUB: handleStatusCommand");
}
void Script::handleRestCommand() {
if (_callbacks->getMonster() != NULL) {
appendText("This is no time to rest!");
_callbacks->_commandWasQuick = true;
} else {
_callbacks->regen();
printPlayerCondition(_world->_player);
}
}
void Script::handleAcceptCommand() {
Obj *offer = _callbacks->_offer;
Chr *chr = offer->_currentOwner;
char buf[512];
snprintf(buf, 512, "%s%s lays the %s on the ground and departs peacefully.",
chr->getDefiniteArticle(true), chr->_name.c_str(), offer->_name.c_str());
appendText(buf);
_world->move(offer, chr->_currentScene);
_world->move(chr, _world->_storageScene);
}
void Script::handleTakeCommand(const char *target) {
warning("STUB: handleTakeCommand");
}
void Script::handleDropCommand(const char *target) {
warning("STUB: handleDropCommand");
}
void Script::handleAimCommand(const char *target) {
warning("STUB: handleAimCommand");
}
void Script::handleWearCommand(const char *target) {
warning("STUB: handleWearCommand");
}
void Script::handleOfferCommand(const char *target) {
warning("STUB: handleOfferCommand");
}
bool Script::tryAttack(Weapon *weapon, Common::String &input) {
warning("STUB: tryAttack");
return false;
}
void Script::handleAttack(Weapon *weapon) {
warning("STUB: handleAttack");
}
const char *Script::getPercentMessage(double percent) {
if (percent < 0.40) {
return "very bad";
} else if (percent < 0.55) {
return "bad";
} else if (percent < 0.70) {
return "average";
} else if (percent < 0.85) {
return "good";
} else if (percent <= 1.00) {
return "very good";
} else {
return "enhanced";
}
}
void Script::printPlayerCondition(Chr *player) {
double physicalPercent = (double)player->_context._statVariables[PHYS_HIT_CUR] / player->_context._statVariables[PHYS_HIT_BAS];
double spiritualPercent = (double)player->_context._statVariables[SPIR_HIT_CUR] / player->_context._statVariables[SPIR_HIT_BAS];
Common::String msg = "Your physical condition is ";
msg += getPercentMessage(physicalPercent);
msg += ".";
appendText(msg);
msg = "Your spiritual condition is ";
msg += getPercentMessage(spiritualPercent);
msg += ".";
appendText(msg);
}
enum {
BLOCK_START,
BLOCK_END,
STATEMENT,
OPERATOR,
OPCODE
};
struct Mapping {
const char *cmd;
int type;
} mapping[] = {
{ "IF{", STATEMENT }, // 0x80
{ "=", OPERATOR },
{ "<", OPERATOR },
{ ">", OPERATOR },
{ "}AND{", OPCODE },
{ "}OR{", OPCODE },
{ "\?\?\?(0x86)", OPCODE },
{ "EXIT\n", BLOCK_END },
{ "END\n", BLOCK_END }, // 0x88
{ "MOVE{", STATEMENT },
{ "}TO{", OPCODE },
{ "PRINT{", STATEMENT },
{ "SOUND{", STATEMENT },
{ "\?\?\?(0x8d)", OPCODE },
{ "LET{", STATEMENT },
{ "+", OPERATOR },
{ "-", OPERATOR }, // 0x90
{ "*", OPERATOR },
{ "/", OPERATOR },
{ "==", OPERATOR },
{ ">>", OPERATOR },
{ "MENU{", STATEMENT },
{ "\?\?\?(0x96)", OPCODE },
{ "\?\?\?(0x97)", OPCODE },
{ "\?\?\?(0x98)", OPCODE }, // 0x98
{ "\?\?\?(0x99)", OPCODE },
{ "\?\?\?(0x9a)", OPCODE },
{ "\?\?\?(0x9b)", OPCODE },
{ "\?\?\?(0x9c)", OPCODE },
{ "\?\?\?(0x9d)", OPCODE },
{ "\?\?\?(0x9e)", OPCODE },
{ "\?\?\?(0x9f)", OPCODE },
{ "TEXT$", OPCODE }, // 0xa0
{ "CLICK$", OPCODE },
{ "\?\?\?(0xa2)", OPCODE },
{ "\?\?\?(0xa3)", OPCODE },
{ "\?\?\?(0xa4)", OPCODE },
{ "\?\?\?(0xa5)", OPCODE },
{ "\?\?\?(0xa6)", OPCODE },
{ "\?\?\?(0xa7)", OPCODE },
{ "\?\?\?(0xa8)", OPCODE }, // 0xa8
{ "\?\?\?(0xa9)", OPCODE },
{ "\?\?\?(0xaa)", OPCODE },
{ "\?\?\?(0xab)", OPCODE },
{ "\?\?\?(0xac)", OPCODE },
{ "\?\?\?(0xad)", OPCODE },
{ "\?\?\?(0xae)", OPCODE },
{ "\?\?\?(0xaf)", OPCODE },
{ "VISITS#", OPCODE }, // 0xb0 // The number of scenes the player has visited, including repeated visits.
{ "RANDOM#", OPCODE }, // RANDOM# for Star Trek, but VISITS# for some other games?
{ "LOOP#", OPCODE }, // The number of commands the player has given in the current scene.
{ "VICTORY#", OPCODE }, // The number of characters killed.
{ "BADCOPY#", OPCODE },
{ "RANDOM#", OPCODE }, // A random number between 1 and 100.
{ "\?\?\?(0xb6)", OPCODE },
{ "\?\?\?(0xb7)", OPCODE },
{ "\?\?\?(0xb8)", OPCODE }, // 0xb8
{ "\?\?\?(0xb9)", OPCODE },
{ "\?\?\?(0xba)", OPCODE },
{ "\?\?\?(0xbb)", OPCODE },
{ "\?\?\?(0xbc)", OPCODE },
{ "\?\?\?(0xbd)", OPCODE },
{ "\?\?\?(0xbe)", OPCODE },
{ "\?\?\?(0xbf)", OPCODE },
{ "STORAGE@", OPCODE }, // 0xc0
{ "SCENE@", OPCODE },
{ "PLAYER@", OPCODE },
{ "MONSTER@", OPCODE },
{ "RANDOMSCN@", OPCODE },
{ "RANDOMCHR@", OPCODE },
{ "RANDOMOBJ@", OPCODE },
{ "\?\?\?(0xc7)", OPCODE },
{ "\?\?\?(0xc8)", OPCODE }, // 0xc8
{ "\?\?\?(0xc9)", OPCODE },
{ "\?\?\?(0xca)", OPCODE },
{ "\?\?\?(0xcb)", OPCODE },
{ "\?\?\?(0xcc)", OPCODE },
{ "\?\?\?(0xcd)", OPCODE },
{ "\?\?\?(0xce)", OPCODE },
{ "\?\?\?(0xcf)", OPCODE },
{ "PHYS.STR.BAS#", OPCODE }, // 0xd0
{ "PHYS.HIT.BAS#", OPCODE },
{ "PHYS.ARM.BAS#", OPCODE },
{ "PHYS.ACC.BAS#", OPCODE },
{ "SPIR.STR.BAS#", OPCODE },
{ "SPIR.HIT.BAS#", OPCODE },
{ "SPIR.ARM.BAS#", OPCODE },
{ "SPIR.ACC.BAS#", OPCODE },
{ "PHYS.SPE.BAS#", OPCODE }, // 0xd8
{ "\?\?\?(0xd9)", OPCODE },
{ "\?\?\?(0xda)", OPCODE },
{ "\?\?\?(0xdb)", OPCODE },
{ "\?\?\?(0xdc)", OPCODE },
{ "\?\?\?(0xdd)", OPCODE },
{ "\?\?\?(0xde)", OPCODE },
{ "\?\?\?(0xdf)", OPCODE },
{ "PHYS.STR.CUR#", OPCODE }, // 0xe0
{ "PHYS.HIT.CUR#", OPCODE },
{ "PHYS.ARM.CUR#", OPCODE },
{ "PHYS.ACC.CUR#", OPCODE },
{ "SPIR.STR.CUR#", OPCODE },
{ "SPIR.HIT.CUR#", OPCODE },
{ "SPIR.ARM.CUR#", OPCODE },
{ "SPIR.ACC.CUR#", OPCODE },
{ "PHYS.SPE.CUR#", OPCODE }, // 0xe8
{ "\?\?\?(0xe9)", OPCODE },
{ "\?\?\?(0xea)", OPCODE },
{ "\?\?\?(0xeb)", OPCODE },
{ "\?\?\?(0xec)", OPCODE },
{ "\?\?\?(0xed)", OPCODE },
{ "\?\?\?(0xee)", OPCODE },
{ "\?\?\?(0xef)", OPCODE },
{ "\?\?\?(0xf0)", OPCODE },
{ "\?\?\?(0xf1)", OPCODE },
{ "\?\?\?(0xf2)", OPCODE },
{ "\?\?\?(0xf3)", OPCODE },
{ "\?\?\?(0xf4)", OPCODE },
{ "\?\?\?(0xf5)", OPCODE },
{ "\?\?\?(0xf6)", OPCODE },
{ "\?\?\?(0xf7)", OPCODE },
{ "\?\?\?(0xf8)", OPCODE }, // 0xa8
{ "\?\?\?(0xf9)", OPCODE },
{ "\?\?\?(0xfa)", OPCODE },
{ "\?\?\?(0xfb)", OPCODE },
{ "\?\?\?(0xfc)", OPCODE },
{ "}\n", OPCODE },
{ "}THEN\n", BLOCK_START },
{ "\?\?\?(0xff)", OPCODE } // Uservar
};
void Script::convertToText() {
_data->seek(12);
int indentLevel = 0;
ScriptText *scr = new ScriptText;
scr->offset = _data->pos();
while(true) {
int c = _data->readByte();
if (_data->eos())
break;
if (c < 0x80) {
if (c < 0x20)
error("Unknown code 0x%02x at %d", c, _data->pos());
do {
scr->line += c;
c = _data->readByte();
} while (c < 0x80);
_data->seek(-1, SEEK_CUR);
} else if (c == 0xff) {
int value = _data->readByte();
value -= 1;
scr->line += (char)('A' + (value / 9));
scr->line += (char)('0' + (value % 9) + 1);
scr->line += '#';
} else {
const char *cmd = mapping[c - 0x80].cmd;
int type = mapping[c - 0x80].type;
if (type == STATEMENT) {
for (int i = 0; i < indentLevel; i++)
scr->line += ' ';
} else if (type == BLOCK_START) {
indentLevel += 2;
} else if (type == BLOCK_END) {
indentLevel -= 2;
for (int i = 0; i < indentLevel; i++)
scr->line += ' ';
}
scr->line += cmd;
if (strchr(cmd, '\n')) {
scr->line.deleteLastChar();
_scriptText.push_back(scr);
scr = new ScriptText;
scr->offset = _data->pos();
}
}
}
if (scr->line.size())
_scriptText.push_back(scr);
else
delete scr;
}
} // End of namespace Wage
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