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scummvm/engines/saga/script.h
Filippos Karapetis 769dd1d7a2 Several bugfixes: 
- The spiritual barometer display in IHNM is now updated only when necessary, to speed drawing up. This also corrects an issue where the spiritual barometer display was updated only after changing a scene
- sf92 is sfDemoSetInteractive
- It's now possible to use dashes and underscores in savegames
- Screen fading when changing scenes is now done correctly: the interface will no longer be incorrectly briefly shown while the screen is fading to black
- The interface mode is now correctly set in the non-interactive part of the IHNM demo
- sfScriptGotoScene does not have a transition parameter, therefore that parameter has been removed

svn-id: r28643
2007-08-17 06:08:18 +00:00

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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"
#include "saga/list.h"
namespace Saga {
#define COMMON_BUFFER_SIZE 1024 // Why 1024?
#define S_LUT_ENTRYLEN_ITECD 22
#define S_LUT_ENTRYLEN_ITEDISK 16
#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 OpCodes {
opNextBlock = 0x01,
opDup = 0x02,
opDrop = 0x03,
opZero = 0x04,
opOne = 0x05,
opConstint = 0x06,
//...
opStrlit = 0x08,
//...
opGetFlag = 0x0B,
opGetInt = 0x0C,
//...
opPutFlag = 0x0F,
opPutInt = 0x10,
//...
opPutFlagV = 0x13,
opPutIntV = 0x14,
//...
opCall = 0x17,
opCcall = 0x18,
opCcallV = 0x19,
opEnter = 0x1A,
opReturn = 0x1B,
opReturnV = 0x1C,
opJmp = 0x1D,
opJmpTrueV = 0x1E,
opJmpFalseV = 0x1F,
opJmpTrue = 0x20,
opJmpFalse = 0x21,
opJmpSwitch = 0x22,
//...
opJmpRandom = 0x24,
opNegate = 0x25,
opNot = 0x26,
opCompl = 0x27,
opIncV = 0x28,
opDecV = 0x29,
opPostInc = 0x2A,
opPostDec = 0x2B,
opAdd = 0x2C,
opSub = 0x2D,
opMul = 0x2E,
opDiv = 0x2F,
opMod = 0x30,
//...
opEq = 0x33,
opNe = 0x34,
opGt = 0x35,
opLt = 0x36,
opGe = 0x37,
opLe = 0x38,
//...
opRsh = 0x3F,
opLsh = 0x40,
opAnd = 0x41,
opOr = 0x42,
opXor = 0x43,
opLAnd = 0x44,
opLOr = 0x45,
opLXor = 0x46,
//...
opSpeak = 0x53,
opDialogBegin = 0x54,
opDialogEnd = 0x55,
opReply = 0x56,
opAnimate = 0x57
};
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);
memset(this, 0x0, sizeof(*this));
}
};
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 SortedList<ScriptThread> ScriptThreadList;
#define SCRIPTFUNC_PARAMS ScriptThread *thread, int nArgs, bool &disContinue
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; }
private:
// 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;
uint16 _modulesLUTEntryLen;
ModuleData *_modules;
int _modulesCount;
TextListEntry *_placardTextEntry;
protected:
friend class SagaEngine;
byte *_commonBuffer;
uint _commonBufferSize;
private:
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);
private:
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, uint instructionLimit);
void setThreadEntrypoint(ScriptThread *thread, int entrypointNumber);
public:
void finishDialog(int strID, int replyID, int flags, int bitOffset);
private:
typedef void (Script::*ScriptFunctionType)(SCRIPTFUNC_PARAMS);
struct ScriptFunctionDescription {
ScriptFunctionType scriptFunction;
const char *scriptFunctionName;
};
const ScriptFunctionDescription *_scriptFunctionsList;
void setupScriptFuncList(void);
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 SF_cycleColors(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 SF_stub(const char *name, ScriptThread *thread, int nArgs);
};
} // End of namespace Saga
#endif
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