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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.
*
* $URL$
* $Id$
*
*/
// Scripting module private header
#ifndef SAGA_SCRIPT_H
#define SAGA_SCRIPT_H
#include "common/endian.h"
#include "saga/font.h"
namespace Saga {
#define COMMON_BUFFER_SIZE 1024 // Why 1024?
#define SCRIPT_TBLENTRY_LEN 4
#define SCRIPT_MAX 5000
#define ITE_SCRIPT_FUNCTION_MAX 78
#define IHNM_SCRIPT_FUNCTION_MAX 105
#define DEFAULT_THREAD_STACK_SIZE 256
enum AddressTypes {
kAddressCommon = 0, // offset from global variables
kAddressStatic = 1, // offset from global variables
kAddressModule = 2, // offset from start of module
kAddressStack = 3, // offset from stack
kAddressThread = 4 // offset from thread structure
/* kAddressId = 5, // offset from const id object
kAddressIdIndirect = 6, // offset from stack id object
kAddressIndex = 7 // index from id*/
};
enum VerbTypes {
kVerbNone,
kVerbWalkTo,
kVerbGive,
kVerbUse,
kVerbEnter,
kVerbLookAt,
kVerbPickUp,
kVerbOpen,
kVerbClose,
kVerbTalkTo,
kVerbWalkOnly,
kVerbLookOnly,
kVerbOptions
};
#define STHREAD_TIMESLICE 8
enum ThreadVarTypes {
kThreadVarObject = 0,
kThreadVarWithObject = 1,
kThreadVarAction = 2,
kThreadVarActor = 3,
kThreadVarMax = kThreadVarActor + 1
};
enum ThreadFlags {
kTFlagNone = 0,
kTFlagWaiting = 1, // wait for even denoted in waitType
kTFlagFinished = 2,
kTFlagAborted = 4,
kTFlagAsleep = kTFlagWaiting | kTFlagFinished | kTFlagAborted // Combination of all flags which can halt a thread
};
enum ThreadWaitTypes {
kWaitTypeNone = 0, // waiting for nothing
kWaitTypeDelay = 1, // waiting for a timer
kWaitTypeSpeech = 2, // waiting for speech to finish
kWaitTypeDialogEnd = 3, // waiting for my dialog to finish
kWaitTypeDialogBegin = 4, // waiting for other dialog to finish
kWaitTypeWalk = 5, // waiting to finish walking
kWaitTypeRequest = 6, // a request is up
kWaitTypePause = 7,
kWaitTypePlacard = 8,
kWaitTypeStatusTextInput = 9,
kWaitTypeWaitFrames = 10, // IHNM. waiting for a frame count
kWaitTypeWakeUp = 11 // IHNM. wait until get waken up
};
enum CycleFlags {
kCyclePong = 1 << 0,
kCycleOnce = 1 << 1,
kCycleRandom = 1 << 2,
kCycleReverse = 1 << 3
};
enum WalkFlags {
kWalkBackPedal = 1 << 0,
kWalkAsync = 1 << 1,
kWalkUseAngle = 1 << 2,
kWalkFace = 1 << 5
};
enum ReplyFlags {
kReplyOnce = 1 << 0,
kReplySummary = 1 << 1,
kReplyCondition = 1 << 2
};
struct EntryPoint {
uint16 nameOffset;
uint16 offset;
};
struct VoiceLUT {
uint16 voicesCount;
uint16 *voices;
void freeMem() {
voicesCount = 0;
free(voices);
}
VoiceLUT() {
memset(this, 0, sizeof(*this));
}
};
struct ModuleData {
bool loaded; // is it loaded or not?
int scriptResourceId;
int stringsResourceId;
int voicesResourceId;
byte *moduleBase; // all base module
uint16 moduleBaseSize; // base module size
uint16 staticSize; // size of static data
uint staticOffset; // offset of static data begining in _commonBuffer
uint16 entryPointsTableOffset; // offset of entrypoint table in moduleBase
uint16 entryPointsCount;
EntryPoint *entryPoints;
StringsTable strings;
VoiceLUT voiceLUT;
void freeMem() {
strings.freeMem();
voiceLUT.freeMem();
free(moduleBase);
free(entryPoints);
}
};
class ScriptThread {
public:
uint16 *_stackBuf;
uint16 _stackSize; // stack size in uint16
uint16 _stackTopIndex;
uint16 _frameIndex;
uint16 _threadVars[kThreadVarMax];
byte *_moduleBase; //
uint16 _moduleBaseSize;
byte *_commonBase; //
byte *_staticBase; //
VoiceLUT *_voiceLUT; //
StringsTable *_strings; //
int _flags; // ThreadFlags
int _waitType; // ThreadWaitTypes
uint _sleepTime;
void *_threadObj; // which object we're handling
int16 _returnValue;
uint16 _instructionOffset; // Instruction offset
int32 _frameWait;
public:
byte *baseAddress(byte addrMode) {
switch (addrMode) {
case kAddressCommon:
return _commonBase;
case kAddressStatic:
return _staticBase;
case kAddressModule:
return _moduleBase;
case kAddressStack:
return (byte*)&_stackBuf[_frameIndex];
case kAddressThread:
return (byte*)_threadVars;
default:
return _commonBase;
}
}
int16 stackTop() {
return (int16)_stackBuf[_stackTopIndex];
}
uint pushedSize() {
return _stackSize - _stackTopIndex - 2;
}
void push(int16 value) {
if (_stackTopIndex <= 0) {
error("ScriptThread::push() stack overflow");
}
_stackBuf[--_stackTopIndex] = (uint16)value;
}
int16 pop() {
if (_stackTopIndex >= _stackSize) {
error("ScriptThread::pop() stack underflow");
}
return (int16)_stackBuf[_stackTopIndex++];
}
// wait stuff
void wait(int waitType) {
_waitType = waitType;
_flags |= kTFlagWaiting;
}
void waitWalk(void *threadObj) {
wait(kWaitTypeWalk);
_threadObj = threadObj;
}
void waitDelay(int sleepTime) {
wait(kWaitTypeDelay);
_sleepTime = sleepTime;
}
void waitFrames(int frames) {
wait(kWaitTypeWaitFrames);
_frameWait = frames;
}
ScriptThread() {
memset(this, 0xFE, sizeof(*this));
_stackBuf = NULL;
}
~ScriptThread() {
free(_stackBuf);
}
};
typedef Common::List<ScriptThread> ScriptThreadList;
#define SCRIPTOP_PARAMS ScriptThread *thread, MemoryReadStream *scriptS, bool &stopParsing, bool &breakOut
#define SCRIPTFUNC_PARAMS ScriptThread *thread, int nArgs, bool &disContinue
#define OPCODE(x) {&Script::x, #x}
class Script {
public:
StringsTable _mainStrings;
Script(SagaEngine *vm);
~Script();
void loadModule(int scriptModuleNumber);
void freeModules();
void doVerb();
void showVerb(int statusColor = -1);
void setVerb(int verb);
int getCurrentVerb() const { return _currentVerb; }
void setPointerVerb();
void whichObject(const Point& mousePoint);
void hitObject(bool leftButton);
void playfieldClick(const Point& mousePoint, bool leftButton);
void setLeftButtonVerb(int verb);
int getLeftButtonVerb() const { return _leftButtonVerb; }
void setRightButtonVerb(int verb);
int getRightButtonVerb() const { return _rightButtonVerb; }
void setNonPlayfieldVerb() {
setRightButtonVerb(getVerbType(kVerbNone));
_pointerObject = ID_NOTHING;
_currentObject[_firstObjectSet ? 1 : 0] = ID_NOTHING;
}
void setNoPendingVerb() {
_pendingVerb = getVerbType(kVerbNone);
_currentObject[0] = _currentObject[0] = ID_NOTHING;
setPointerVerb();
}
int getVerbType(VerbTypes verbType);
TextListEntry *getPlacardTextEntry() { return _placardTextEntry; }
protected:
// When reading or writing data to the common buffer, we have to use a
// well-defined byte order since it's stored in savegames. Otherwise,
// we use native byte ordering since that data may be accessed in other
// ways than through these functions.
//
// The "module" area is a special case, which possibly never ever
// happens. But if it does, we need well-defined byte ordering.
uint16 readUint16(byte *addr, byte addrMode) {
switch (addrMode) {
case kAddressCommon:
case kAddressStatic:
case kAddressModule:
return READ_LE_UINT16(addr);
default:
return READ_UINT16(addr);
}
}
void writeUint16(byte *addr, uint16 value, byte addrMode) {
switch (addrMode) {
case kAddressCommon:
case kAddressStatic:
case kAddressModule:
WRITE_LE_UINT16(addr, value);
break;
default:
WRITE_UINT16(addr, value);
break;
}
}
SagaEngine *_vm;
ResourceContext *_scriptContext;
ResourceContext *_dataContext;
uint16 _modulesLUTEntryLen;
ModuleData *_modules;
int _modulesCount;
TextListEntry *_placardTextEntry;
friend class SagaEngine;
byte *_commonBuffer;
uint _commonBufferSize;
uint _staticSize;
ScriptThreadList _threadList;
ScriptThread *_conversingThread;
//verb
bool _firstObjectSet;
bool _secondObjectNeeded;
uint16 _currentObject[2];
int16 _currentObjectFlags[2];
int _currentVerb;
int _stickyVerb;
int _leftButtonVerb;
int _rightButtonVerb;
int _ihnmDemoCurrentY;
public:
uint16 _pendingObject[2];
int _pendingVerb;
uint16 _pointerObject;
bool _skipSpeeches;
bool _abortEnabled;
VoiceLUT _globalVoiceLUT;
public:
ScriptThread *createThread(uint16 scriptModuleNumber, uint16 scriptEntryPointNumber);
int executeThread(ScriptThread *thread, int entrypointNumber);
void executeThreads(uint msec);
void completeThread(void);
void abortAllThreads(void);
void wakeUpActorThread(int waitType, void *threadObj);
void wakeUpThreads(int waitType);
void wakeUpThreadsDelayed(int waitType, int sleepTime);
void loadVoiceLUT(VoiceLUT &voiceLUT, const byte *resourcePointer, size_t resourceLength);
protected:
void loadModuleBase(ModuleData &module, const byte *resourcePointer, size_t resourceLength);
// runThread returns true if we should break running of other threads
bool runThread(ScriptThread &thread);
void setThreadEntrypoint(ScriptThread *thread, int entrypointNumber);
public:
void finishDialog(int strID, int replyID, int flags, int bitOffset);
protected:
// Script opcodes ------------------------------------------------------------
typedef void (Script::*ScriptOpType)(SCRIPTOP_PARAMS);
struct ScriptOpDescription {
ScriptOpType scriptOp;
const char *scriptOpName;
};
const ScriptOpDescription *_scriptOpsList;
void setupScriptOpcodeList();
void opDummy(SCRIPTOP_PARAMS) { warning("Dummy opcode called"); }
void opNextBlock(SCRIPTOP_PARAMS) {
thread->_instructionOffset = (((thread->_instructionOffset) >> 10) + 1) << 10;
}
void opDup(SCRIPTOP_PARAMS);
void opDrop(SCRIPTOP_PARAMS);
void opZero(SCRIPTOP_PARAMS);
void opOne(SCRIPTOP_PARAMS);
void opConstInt(SCRIPTOP_PARAMS);
void opStrLit(SCRIPTOP_PARAMS);
void opGetFlag(SCRIPTOP_PARAMS);
void opGetByte(SCRIPTOP_PARAMS); // SAGA 2
void opGetInt(SCRIPTOP_PARAMS);
void opPutFlag(SCRIPTOP_PARAMS);
void opPutByte(SCRIPTOP_PARAMS); // SAGA 2
void opPutInt(SCRIPTOP_PARAMS);
void opPutFlagV(SCRIPTOP_PARAMS);
void opPutByteV(SCRIPTOP_PARAMS);
void opPutIntV(SCRIPTOP_PARAMS);
void opCall(SCRIPTOP_PARAMS); // SAGA 1
void opCallNear(SCRIPTOP_PARAMS); // SAGA 2
void opCallFar(SCRIPTOP_PARAMS); // SAGA 2
void opCcall(SCRIPTOP_PARAMS);
void opCcallV(SCRIPTOP_PARAMS);
void opCallMember(SCRIPTOP_PARAMS); // SAGA 2
void opCallMemberV(SCRIPTOP_PARAMS); // SAGA 2
void opEnter(SCRIPTOP_PARAMS);
void opReturn(SCRIPTOP_PARAMS);
void opReturnV(SCRIPTOP_PARAMS);
void opJmp(SCRIPTOP_PARAMS);
void opJmpTrueV(SCRIPTOP_PARAMS);
void opJmpFalseV(SCRIPTOP_PARAMS);
void opJmpTrue(SCRIPTOP_PARAMS);
void opJmpFalse(SCRIPTOP_PARAMS);
void opJmpSwitch(SCRIPTOP_PARAMS);
void opJmpRandom(SCRIPTOP_PARAMS);
void opNegate(SCRIPTOP_PARAMS);
void opNot(SCRIPTOP_PARAMS);
void opCompl(SCRIPTOP_PARAMS);
void opIncV(SCRIPTOP_PARAMS);
void opDecV(SCRIPTOP_PARAMS);
void opPostInc(SCRIPTOP_PARAMS);
void opPostDec(SCRIPTOP_PARAMS);
void opAdd(SCRIPTOP_PARAMS);
void opSub(SCRIPTOP_PARAMS);
void opMul(SCRIPTOP_PARAMS);
void opDiv(SCRIPTOP_PARAMS);
void opMod(SCRIPTOP_PARAMS);
void opEq(SCRIPTOP_PARAMS);
void opNe(SCRIPTOP_PARAMS);
void opGt(SCRIPTOP_PARAMS);
void opLt(SCRIPTOP_PARAMS);
void opGe(SCRIPTOP_PARAMS);
void opLe(SCRIPTOP_PARAMS);
void opRsh(SCRIPTOP_PARAMS);
void opLsh(SCRIPTOP_PARAMS);
void opAnd(SCRIPTOP_PARAMS);
void opOr(SCRIPTOP_PARAMS);
void opXor(SCRIPTOP_PARAMS);
void opLAnd(SCRIPTOP_PARAMS);
void opLOr(SCRIPTOP_PARAMS);
void opLXor(SCRIPTOP_PARAMS);
void opSpeak(SCRIPTOP_PARAMS);
void opDialogBegin(SCRIPTOP_PARAMS);
void opDialogEnd(SCRIPTOP_PARAMS);
void opReply(SCRIPTOP_PARAMS);
void opAnimate(SCRIPTOP_PARAMS);
void opJmpSeedRandom(SCRIPTOP_PARAMS);
// Script functions ----------------------------------------------------------
typedef void (Script::*ScriptFunctionType)(SCRIPTFUNC_PARAMS);
struct ScriptFunctionDescription {
ScriptFunctionType scriptFunction;
const char *scriptFunctionName;
};
const ScriptFunctionDescription *_scriptFunctionsList;
void setupITEScriptFuncList();
void setupIHNMScriptFuncList();
void sfPutString(SCRIPTFUNC_PARAMS);
void sfWait(SCRIPTFUNC_PARAMS);
void sfTakeObject(SCRIPTFUNC_PARAMS);
void sfIsCarried(SCRIPTFUNC_PARAMS);
void sfStatusBar(SCRIPTFUNC_PARAMS);
void sfMainMode(SCRIPTFUNC_PARAMS);
void sfScriptWalkTo(SCRIPTFUNC_PARAMS);
void sfScriptDoAction(SCRIPTFUNC_PARAMS);
void sfSetActorFacing(SCRIPTFUNC_PARAMS);
void sfStartBgdAnim(SCRIPTFUNC_PARAMS);
void sfStopBgdAnim(SCRIPTFUNC_PARAMS);
void sfLockUser(SCRIPTFUNC_PARAMS);
void sfPreDialog(SCRIPTFUNC_PARAMS);
void sfKillActorThreads(SCRIPTFUNC_PARAMS);
void sfFaceTowards(SCRIPTFUNC_PARAMS);
void sfSetFollower(SCRIPTFUNC_PARAMS);
void sfScriptGotoScene(SCRIPTFUNC_PARAMS);
void sfSetObjImage(SCRIPTFUNC_PARAMS);
void sfSetObjName(SCRIPTFUNC_PARAMS);
void sfGetObjImage(SCRIPTFUNC_PARAMS);
void sfGetNumber(SCRIPTFUNC_PARAMS);
void sfScriptOpenDoor(SCRIPTFUNC_PARAMS);
void sfScriptCloseDoor(SCRIPTFUNC_PARAMS);
void sfSetBgdAnimSpeed(SCRIPTFUNC_PARAMS);
void sfCycleColors(SCRIPTFUNC_PARAMS);
void sfDoCenterActor(SCRIPTFUNC_PARAMS);
void sfStartBgdAnimSpeed(SCRIPTFUNC_PARAMS);
void sfScriptWalkToAsync(SCRIPTFUNC_PARAMS);
void sfEnableZone(SCRIPTFUNC_PARAMS);
void sfSetActorState(SCRIPTFUNC_PARAMS);
void sfScriptMoveTo(SCRIPTFUNC_PARAMS);
void sfSceneEq(SCRIPTFUNC_PARAMS);
void sfDropObject(SCRIPTFUNC_PARAMS);
void sfFinishBgdAnim(SCRIPTFUNC_PARAMS);
void sfSwapActors(SCRIPTFUNC_PARAMS);
void sfSimulSpeech(SCRIPTFUNC_PARAMS);
void sfScriptWalk(SCRIPTFUNC_PARAMS);
void sfCycleFrames(SCRIPTFUNC_PARAMS);
void sfSetFrame(SCRIPTFUNC_PARAMS);
void sfSetPortrait(SCRIPTFUNC_PARAMS);
void sfSetProtagPortrait(SCRIPTFUNC_PARAMS);
void sfChainBgdAnim(SCRIPTFUNC_PARAMS);
void sfScriptSpecialWalk(SCRIPTFUNC_PARAMS);
void sfPlaceActor(SCRIPTFUNC_PARAMS);
void sfCheckUserInterrupt(SCRIPTFUNC_PARAMS);
void sfScriptWalkRelative(SCRIPTFUNC_PARAMS);
void sfScriptMoveRelative(SCRIPTFUNC_PARAMS);
void sfSimulSpeech2(SCRIPTFUNC_PARAMS);
void sfPlacard(SCRIPTFUNC_PARAMS);
void sfPlacardOff(SCRIPTFUNC_PARAMS);
void sfSetProtagState(SCRIPTFUNC_PARAMS);
void sfResumeBgdAnim(SCRIPTFUNC_PARAMS);
void sfThrowActor(SCRIPTFUNC_PARAMS);
void sfWaitWalk(SCRIPTFUNC_PARAMS);
void sfScriptSceneID(SCRIPTFUNC_PARAMS);
void sfChangeActorScene(SCRIPTFUNC_PARAMS);
void sfScriptClimb(SCRIPTFUNC_PARAMS);
void sfSetDoorState(SCRIPTFUNC_PARAMS);
void sfSetActorZ(SCRIPTFUNC_PARAMS);
void sfScriptText(SCRIPTFUNC_PARAMS);
void sfGetActorX(SCRIPTFUNC_PARAMS);
void sfGetActorY(SCRIPTFUNC_PARAMS);
void sfEraseDelta(SCRIPTFUNC_PARAMS);
void sfPlayMusic(SCRIPTFUNC_PARAMS);
void sfPickClimbOutPos(SCRIPTFUNC_PARAMS);
void sfTossRif(SCRIPTFUNC_PARAMS);
void sfShowControls(SCRIPTFUNC_PARAMS);
void sfShowMap(SCRIPTFUNC_PARAMS);
void sfPuzzleWon(SCRIPTFUNC_PARAMS);
void sfEnableEscape(SCRIPTFUNC_PARAMS);
void sfPlaySound(SCRIPTFUNC_PARAMS);
void sfPlayLoopedSound(SCRIPTFUNC_PARAMS);
void sfGetDeltaFrame(SCRIPTFUNC_PARAMS);
void sfShowProtect(SCRIPTFUNC_PARAMS);
void sfProtectResult(SCRIPTFUNC_PARAMS);
void sfRand(SCRIPTFUNC_PARAMS);
void sfFadeMusic(SCRIPTFUNC_PARAMS);
void sfScriptStartCutAway(SCRIPTFUNC_PARAMS);
void sfReturnFromCutAway(SCRIPTFUNC_PARAMS);
void sfEndCutAway(SCRIPTFUNC_PARAMS);
void sfGetMouseClicks(SCRIPTFUNC_PARAMS);
void sfResetMouseClicks(SCRIPTFUNC_PARAMS);
void sfWaitFrames(SCRIPTFUNC_PARAMS);
void sfScriptFade(SCRIPTFUNC_PARAMS);
void sfPlayVoice(SCRIPTFUNC_PARAMS);
void sfVstopFX(SCRIPTFUNC_PARAMS);
void sfVstopLoopedFX(SCRIPTFUNC_PARAMS);
void sfDemoIsInteractive(SCRIPTFUNC_PARAMS);
void sfVsetTrack(SCRIPTFUNC_PARAMS);
void sfDebugShowData(SCRIPTFUNC_PARAMS);
void sfNull(SCRIPTFUNC_PARAMS);
void sfWaitFramesEsc(SCRIPTFUNC_PARAMS);
void sfPsychicProfile(SCRIPTFUNC_PARAMS);
void sfPsychicProfileOff(SCRIPTFUNC_PARAMS);
void sfSetSpeechBox(SCRIPTFUNC_PARAMS);
void sfSetChapterPoints(SCRIPTFUNC_PARAMS);
void sfSetPortraitBgColor(SCRIPTFUNC_PARAMS);
void sfScriptStartVideo(SCRIPTFUNC_PARAMS);
void sfScriptReturnFromVideo(SCRIPTFUNC_PARAMS);
void sfScriptEndVideo(SCRIPTFUNC_PARAMS);
void sfShowIHNMDemoHelpBg(SCRIPTFUNC_PARAMS);
void sfAddIHNMDemoHelpTextLine(SCRIPTFUNC_PARAMS);
void sfShowIHNMDemoHelpPage(SCRIPTFUNC_PARAMS);
void sfGetPoints(SCRIPTFUNC_PARAMS);
void sfSetGlobalFlag(SCRIPTFUNC_PARAMS);
void sfDemoSetInteractive(SCRIPTFUNC_PARAMS);
void sfClearGlobalFlag(SCRIPTFUNC_PARAMS);
void sfTestGlobalFlag(SCRIPTFUNC_PARAMS);
void sfSetPoints(SCRIPTFUNC_PARAMS);
void sfQueueMusic(SCRIPTFUNC_PARAMS);
void sfDisableAbortSpeeches(SCRIPTFUNC_PARAMS);
void sfStub(const char *name, ScriptThread *thread, int nArgs);
};
class SAGA1Script : public Script {
public:
SAGA1Script(SagaEngine *vm);
~SAGA1Script();
};
class SAGA2Script : public Script {
public:
SAGA2Script(SagaEngine *vm);
~SAGA2Script();
};
} // End of namespace Saga
#endif
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