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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.
*
*/
#ifndef DIRECTOR_LINGO_LINGO_H
#define DIRECTOR_LINGO_LINGO_H
#include "common/debug.h"
#include "common/hashmap.h"
#include "common/hash-str.h"
#include "audio/audiostream.h"
#include "common/str.h"
#include "engines/director/director.h"
#include "engines/director/score.h"
#include "director/lingo/lingo-gr.h"
#include "director/lingo/lingo-the.h"
namespace Director {
enum LEvent {
kEventPrepareMovie,
kEventStartMovie,
kEventStopMovie,
kEventNew,
kEventBeginSprite,
kEventEndSprite,
kEventNone,
kEventEnterFrame,
kEventPrepareFrame,
kEventIdle,
kEventStepFrame,
kEventExitFrame,
kEventActivateWindow,
kEventDeactivateWindow,
kEventMoveWindow,
kEventResizeWindow,
kEventOpenWindow,
kEventCloseWindow,
kEventKeyUp,
kEventKeyDown,
kEventMouseUp,
kEventMouseDown,
kEventRightMouseUp,
kEventRightMouseDown,
kEventMouseEnter,
kEventMouseLeave,
kEventMouseUpOutSide,
kEventMouseWithin,
kEventStart
};
typedef void (*inst)(void);
#define STOP (inst)0
typedef Common::Array<inst> ScriptData;
struct Symbol { /* symbol table entry */
char *name;
int type;
union {
int i; /* VAR */
float f; /* FLOAT */
ScriptData *defn; /* FUNCTION, PROCEDURE */
Common::String *s; /* STRING */
} u;
int nargs;
bool global;
Symbol();
};
struct Datum { /* interpreter stack type */
int type;
union {
int i;
float f;
Common::String *s;
Symbol *sym;
} u;
Datum() { u.sym = NULL; type = VOID; }
float toFloat();
int toInt();
};
struct Builtin {
void (*func)(void);
int nargs;
Builtin(void (*func1)(void), int nargs1) : func(func1), nargs(nargs1) {}
};
typedef Common::HashMap<int32, ScriptData *> ScriptHash;
typedef Common::Array<Datum> StackData;
typedef Common::HashMap<Common::String, Symbol *, Common::IgnoreCase_Hash, Common::IgnoreCase_EqualTo> SymbolHash;
typedef Common::HashMap<Common::String, Builtin *, Common::IgnoreCase_Hash, Common::IgnoreCase_EqualTo> BuiltinHash;
struct CFrame { /* proc/func call stack frame */
Symbol *sp; /* symbol table entry */
int retpc; /* where to resume after return */
ScriptData *retscript; /* which script to resume after return */
SymbolHash *localvars;
};
class Lingo {
public:
Lingo(DirectorEngine *vm);
~Lingo();
void addCode(Common::String code, ScriptType type, uint16 id);
void executeScript(ScriptType type, uint16 id);
void processEvent(LEvent event, int entityId);
void initBuiltIns();
public:
void execute(int pc);
void pushContext();
void popContext();
Symbol *lookupVar(const char *name, bool create = true, bool putInGlobalList = false);
void cleanLocalVars();
void define(Common::String &s, int start, int nargs);
void processIf(int elselabel, int endlabel);
int alignTypes(Datum &d1, Datum &d2);
int code1(inst code) { _currentScript->push_back(code); return _currentScript->size() - 1; }
int code2(inst code_1, inst code_2) { int o = code1(code_1); code1(code_2); return o; }
int code3(inst code_1, inst code_2, inst code_3) { int o = code1(code_1); code1(code_2); code1(code_3); return o; }
int codeString(const char *s);
void codeLabel(int label);
int calcStringAlignment(const char *s) {
return calcCodeAlignment(strlen(s) + 1);
}
int calcCodeAlignment(int l) {
int instLen = sizeof(inst);
return (l + instLen - 1) / instLen;
}
void codeArg(Common::String *s);
void codeArgStore();
int codeId(Common::String &s);
int codeId_(Common::String &s);
int codeFloat(float f);
static void c_xpop();
static void c_printtop();
static void c_add();
static void c_sub();
static void c_mul();
static void c_div();
static void c_negate();
static void c_ampersand();
static void c_constpush();
static void c_fconstpush();
static void c_stringpush();
static void c_varpush();
static void c_assign();
bool verify(Symbol *s);
static void c_eval();
static void c_repeatwhilecode();
static void c_repeatwithcode();
static void c_ifcode();
static void c_eq();
static void c_neq();
static void c_gt();
static void c_lt();
static void c_ge();
static void c_le();
static void c_call();
static void c_procret();
static void c_mci();
static void c_mciwait();
static void c_goto();
static void c_gotoloop();
static void c_gotonext();
static void c_gotoprevious();
static void c_global();
static void b_abs();
static void b_atan();
static void b_cos();
static void b_exp();
static void b_float();
static void b_integer();
static void b_log();
static void b_pi();
static void b_power();
static void b_random();
static void b_sin();
static void b_sqrt();
static void b_tan();
void func_mci(Common::String &s);
void func_mciwait(Common::String &s);
void func_goto(Common::String &frame, Common::String &movie);
void func_gotoloop();
void func_gotonext();
void func_gotoprevious();
public:
void setTheEntity(TheEntity entity, int id, TheField field, Datum &d);
void setTheSprite(int id, TheField field, Datum &d);
void setTheCast(int id, TheField field, Datum &d);
Datum getTheEntity(TheEntity entity, int id, TheField field);
Datum getTheSprite(int id, TheField field);
Datum getTheCast(int id, TheField field);
public:
ScriptData *_currentScript;
ScriptType _currentScriptType;
bool _returning;
bool _indef;
Common::Array<CFrame *> _callstack;
Common::Array<Common::String *> _argstack;
BuiltinHash _builtins;
Common::Array<int> _labelstack;
int _linenumber;
int _colnumber;
private:
int parse(const char *code);
void push(Datum d);
Datum pop(void);
Common::HashMap<uint32, const char *> _eventHandlerTypes;
Common::HashMap<Common::String, Audio::AudioStream *> _audioAliases;
ScriptHash _scripts[kMaxScriptType + 1];
SymbolHash _globalvars;
SymbolHash *_localvars;
SymbolHash _handlers;
int _pc;
StackData _stack;
DirectorEngine *_vm;
};
extern Lingo *g_lingo;
} // End of namespace Director
#endif
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