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162 lines
4.3 KiB
C++
162 lines
4.3 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* MIT License:
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*
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* Copyright (c) 2009 Alexei Svitkine, Eugene Sandulenko
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use,
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* copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following
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* conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#ifndef WAGE_SCRIPT_H
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#define WAGE_SCRIPT_H
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namespace Wage {
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class Script {
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public:
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Script(Common::SeekableReadStream *data, int num, WageEngine *engine);
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~Script();
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private:
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Common::SeekableReadStream *_data;
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WageEngine *_engine;
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World *_world;
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int _loopCount;
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Common::String *_inputText;
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Designed *_inputClick;
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bool _handled;
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class Operand {
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public:
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union {
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Obj *obj;
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Chr *chr;
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Designed *designed;
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Scene *scene;
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int16 number;
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Common::String *string;
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Designed *inputClick;
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} _value;
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OperandType _type;
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Operand(Obj *value, OperandType type) {
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_value.obj = value;
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assert(type == OBJ);
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_type = type;
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}
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Operand(Chr *value, OperandType type) {
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_value.chr = value;
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assert(type == CHR);
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_type = type;
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}
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Operand(Scene *value, OperandType type) {
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_value.scene = value;
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assert(type == SCENE);
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_type = type;
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}
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Operand(int value, OperandType type) {
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_value.number = value;
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assert(type == NUMBER);
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_type = type;
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}
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Operand(Common::String *value, OperandType type) {
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_value.string = value;
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assert(type == STRING || type == TEXT_INPUT);
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_type = type;
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}
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Operand(Designed *value, OperandType type) {
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_value.inputClick = value;
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assert(type == CLICK_INPUT);
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_type = type;
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}
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~Operand() {
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if (_type == STRING)
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delete _value.string;
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}
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Common::String toString() const;
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};
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struct ScriptText {
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int offset;
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Common::String line;
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};
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public:
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void print();
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void printLine(int offset);
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bool execute(World *world, int loopCount, Common::String *inputText, Designed *inputClick);
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private:
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Common::String preprocessInputText(Common::String inputText);
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Operand *readOperand();
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Operand *readStringOperand();
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const char *readOperator();
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void processIf();
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void skipBlock();
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void skipIf();
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bool compare(Operand *o1, Operand *o2, int comparator);
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bool eval(Operand *lhs, const char *op, Operand *rhs);
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bool evaluatePair(Operand *lhs, const char *op, Operand *rhs);
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Operand *convertOperand(Operand *operand, int type);
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bool evalClickCondition(Operand *lhs, const char *op, Operand *rhs);
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bool evalClickEquality(Operand *lhs, Operand *rhs, bool partialMatch);
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void processMove();
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void processLet();
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void assign(byte operandType, int uservar, uint16 value);
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void convertToText();
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public:
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Common::Array<ScriptText *> _scriptText;
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};
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} // End of namespace Wage
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#endif
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