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/* ScummVM - Scumm Interpreter
* Copyright (C) 2004 The ScummVM project
*
* The ReInherit Engine is (C)2000-2003 by Daniel Balsom.
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Header$
*
*/
// Scripting module private header
#ifndef SAGA_SCRIPT_H
#define SAGA_SCRIPT_H
#include "saga/text.h"
#include "saga/list.h"
namespace Saga {
#define SCRIPT_DATABUF_NUM 5
#define SCRIPT_DATABUF_LEN 1024
#define S_LUT_ENTRYLEN_ITECD 22
#define S_LUT_ENTRYLEN_ITEDISK 16
#define SCRIPT_TBLENTRY_LEN 4
#define SCRIPT_MAX 5000
#define SCRIPTLIST_HDR 12
#define SCRIPT_STRINGLIMIT 255
#define TAB " "
#define S_ERROR_PREFIX "SError: "
#define S_WARN_PREFIX "SWarning: "
#define SCRIPT_FUNCTION_MAX 78
typedef unsigned int ScriptDataWord;
enum VerbTypes {
//todo: LUT for drawing
kVerbNone = 0,
kVerbPickup = 1,
kVerbLookAt = 2,
kVerbWalkTo = 3,
kVerbSpeakTo = 4,
kVerbOpen = 5,
kVerbClose = 6,
kVerbGive = 7,
kVerbUse = 8,
kVerbOptions = 9,
kVerbEnter = 10,
kVerbLeave = 11,
kVerbBegin = 12,
kVerbWalkOnly = 13,
kVerbLookOnly = 14
};
#define STHREAD_TIMESLICE 8
enum {
kVarObject = 0,
kVarWithObject,
kVarAction,
kVarActor
};
enum ThreadFlags {
kTFlagNone = 0,
kTFlagWaiting = 1, // wait for even denoted in waitType
kTFlagFinished = 2,
kTFlagAborted = 4,
kTFlagAsleep = 7 // 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
};
enum OpCodes {
//...
opCcall = 0x18,
opCcallV = 0x19,
//...
opSpeak = 0x53
};
enum CycleFlags {
kCyclePong = (1 << 0),
kCycleOnce = (1 << 1),
kCycleRandom = (1 << 2),
kCycleReverse = (1 << 3)
};
struct SCRIPT_THREAD {
int flags; // ThreadFlags
int waitType; // ThreadWaitTypes
void *threadObj; // which object we're handling
uint sleepTime;
int ep_num; // Entrypoint number
unsigned long ep_offset; // Entrypoint offset
unsigned long i_offset; // Instruction offset
// The scripts are allowed to access the stack like any other memory
// area. It's therefore probably quite important that our stacks work
// the same as in the original interpreter.
ScriptDataWord stackBuf[64];
int stackPtr;
int framePtr;
ScriptDataWord threadVars[4];
ScriptDataWord retVal;
ScriptDataWord stackTop() {
return stackBuf[stackPtr];
}
int stackSize() {
return ARRAYSIZE(stackBuf) - stackPtr - 1;
}
void push(ScriptDataWord n) {
assert(stackPtr > 0);
stackBuf[--stackPtr] = n;
}
ScriptDataWord pop() {
assert(stackPtr < ARRAYSIZE(stackBuf));
return stackBuf[stackPtr++];
}
void wait(int aWaitType) {
waitType = aWaitType;
flags |= kTFlagWaiting;
}
void waitWalk(void *aThreadObj) {
wait(kWaitTypeWalk);
threadObj = aThreadObj;
}
void waitDelay(int aSleepTime) {
wait(kWaitTypeDelay);
sleepTime = aSleepTime;
}
SCRIPT_THREAD() { memset(this, 0, sizeof(*this)); }
};
typedef SortedList<SCRIPT_THREAD> ScriptThreadList;
struct PROC_TBLENTRY {
size_t name_offset;
size_t offset;
};
struct SCRIPT_BYTECODE {
unsigned char *bytecode_p;
size_t bytecode_len;
size_t ep_tbl_offset;
unsigned long n_entrypoints;
PROC_TBLENTRY *entrypoints;
};
struct StringsList {
int stringsCount;
const char **strings;
};
struct VOICE_LUT {
int n_voices;
int *voices;
};
struct SCRIPTDATA {
int loaded;
SCRIPT_BYTECODE *bytecode;
StringsList *strings;
VOICE_LUT *voice;
};
struct SCRIPT_LUT_ENTRY {
int script_rn;
int diag_list_rn;
int voice_lut_rn;
};
struct ScriptDataBuf {
ScriptDataWord *data;
int length;
};
#define SCRIPTFUNC_PARAMS SCRIPT_THREAD *thread, int nArgs
class Script {
public:
Script();
~Script();
void CF_script_togglestep();
int loadScript(int scriptNum);
int freeScript();
SCRIPT_BYTECODE *loadBytecode(byte *bytecode_p, size_t bytecode_len);
void loadStrings(const byte *stringsList, size_t stringsLength, StringsList *&strings);
VOICE_LUT *loadVoiceLUT(const byte *voicelut_p, size_t voicelut_len, SCRIPTDATA *script);
int disassemble(SCRIPT_BYTECODE *script_list, StringsList *strings);
bool isInitialized() const { return _initialized; }
bool isVoiceLUTPresent() const { return _voiceLUTPresent; }
SCRIPTDATA *currentScript() { return _currentScript; }
ScriptDataBuf *dataBuffer(int idx) { return &_dataBuf[idx]; }
int getWord(int bufNumber, int wordNumber, ScriptDataWord *data);
int putWord(int bufNumber, int wordNumber, ScriptDataWord data);
int setBit(int bufNumber, ScriptDataWord bitNumber, int bitState);
int getBit(int bufNumber, ScriptDataWord bitNumber, int *bitState);
const char *getString(int index);
void scriptInfo();
void scriptExec(int argc, const char **argv);
protected:
bool _initialized;
bool _voiceLUTPresent;
RSCFILE_CONTEXT *_scriptContext;
SCRIPT_LUT_ENTRY *_scriptLUT;
int _scriptLUTMax;
uint16 _scriptLUTEntryLen;
SCRIPTDATA *_currentScript;
ScriptDataBuf _dataBuf[SCRIPT_DATABUF_NUM];
ScriptThreadList _threadList;
public:
bool _skipSpeeches;
bool _abortEnabled;
int _dbg_singlestep;
int _dbg_dostep;
SCRIPT_THREAD *_dbg_thread;
TEXTLIST_ENTRY *_dbg_txtentry;
public:
SCRIPT_THREAD *SThreadCreate();
int SThreadExecute(SCRIPT_THREAD *thread, int ep_num);
int executeThreads(uint msec);
int SThreadDebugStep();
void SThreadCompleteThread(void);
int SThreadDestroy(SCRIPT_THREAD *thread);
void wakeUpActorThread(int waitType, void *threadObj);
void wakeUpThreads(int waitType);
void wakeUpThreadsDelayed(int waitType, int sleepTime);
private:
void setFramePtr(SCRIPT_THREAD *thread, int newPtr);
unsigned char *SThreadGetReadPtr(SCRIPT_THREAD *thread);
unsigned long SThreadGetReadOffset(const byte *read_p);
size_t SThreadGetReadLen(SCRIPT_THREAD *thread);
int SThreadRun(SCRIPT_THREAD *thread, int instr_limit);
int SThreadSetEntrypoint(SCRIPT_THREAD *thread, int ep_num);
private:
typedef int (Script::*ScriptFunctionType)(SCRIPTFUNC_PARAMS);
struct ScriptFunctionDescription {
ScriptFunctionType scriptFunction;
const char *scriptFunctionName;
};
const ScriptFunctionDescription *_scriptFunctionsList;
void setupScriptFuncList(void);
int SDebugPrintInstr(SCRIPT_THREAD *thread);
int SF_putString(SCRIPTFUNC_PARAMS);
int sfWait(SCRIPTFUNC_PARAMS);
int SF_takeObject(SCRIPTFUNC_PARAMS);
int SF_objectIsCarried(SCRIPTFUNC_PARAMS);
int SF_setStatusText(SCRIPTFUNC_PARAMS);
int SF_commandMode(SCRIPTFUNC_PARAMS);
int sfScriptWalkTo(SCRIPTFUNC_PARAMS);
int SF_doAction(SCRIPTFUNC_PARAMS);
int sfSetActorFacing(SCRIPTFUNC_PARAMS);
int sfStartBgdAnim(SCRIPTFUNC_PARAMS);
int sfStopBgdAnim(SCRIPTFUNC_PARAMS);
int SF_freezeInterface(SCRIPTFUNC_PARAMS);
int SF_dialogMode(SCRIPTFUNC_PARAMS);
int SF_killActorThreads(SCRIPTFUNC_PARAMS);
int SF_faceTowards(SCRIPTFUNC_PARAMS);
int sfSetFollower(SCRIPTFUNC_PARAMS);
int SF_gotoScene(SCRIPTFUNC_PARAMS);
int SF_setObjImage(SCRIPTFUNC_PARAMS);
int SF_setObjName(SCRIPTFUNC_PARAMS);
int SF_getObjImage(SCRIPTFUNC_PARAMS);
int SF_getNumber(SCRIPTFUNC_PARAMS);
int SF_openDoor(SCRIPTFUNC_PARAMS);
int SF_closeDoor(SCRIPTFUNC_PARAMS);
int sfSetBgdAnimSpeed(SCRIPTFUNC_PARAMS);
int SF_cycleColors(SCRIPTFUNC_PARAMS);
int SF_centerActor(SCRIPTFUNC_PARAMS);
int sfStartBgdAnimSpeed(SCRIPTFUNC_PARAMS);
int SF_actorWalkToAsync(SCRIPTFUNC_PARAMS);
int SF_enableZone(SCRIPTFUNC_PARAMS);
int sfSetActorState(SCRIPTFUNC_PARAMS);
int scriptMoveTo(SCRIPTFUNC_PARAMS);
int SF_sceneEq(SCRIPTFUNC_PARAMS);
int SF_dropObject(SCRIPTFUNC_PARAMS);
int SF_finishBgdAnim(SCRIPTFUNC_PARAMS);
int sfSwapActors(SCRIPTFUNC_PARAMS);
int sfSimulSpeech(SCRIPTFUNC_PARAMS);
int SF_actorWalk(SCRIPTFUNC_PARAMS);
int sfCycleFrames(SCRIPTFUNC_PARAMS);
int sfSetFrame(SCRIPTFUNC_PARAMS);
int SF_setRightPortrait(SCRIPTFUNC_PARAMS);
int SF_setLeftPortrait(SCRIPTFUNC_PARAMS);
int SF_linkAnim(SCRIPTFUNC_PARAMS);
int SF_scriptSpecialWalk(SCRIPTFUNC_PARAMS);
int sfPlaceActor(SCRIPTFUNC_PARAMS);
int SF_checkUserInterrupt(SCRIPTFUNC_PARAMS);
int SF_walkRelative(SCRIPTFUNC_PARAMS);
int SF_moveRelative(SCRIPTFUNC_PARAMS);
int SF_simulSpeech2(SCRIPTFUNC_PARAMS);
int SF_placard(SCRIPTFUNC_PARAMS);
int SF_placardOff(SCRIPTFUNC_PARAMS);
int SF_setProtagState(SCRIPTFUNC_PARAMS);
int SF_resumeBgdAnim(SCRIPTFUNC_PARAMS);
int SF_throwActor(SCRIPTFUNC_PARAMS);
int SF_waitWalk(SCRIPTFUNC_PARAMS);
int SF_sceneID(SCRIPTFUNC_PARAMS);
int SF_changeActorScene(SCRIPTFUNC_PARAMS);
int SF_climb(SCRIPTFUNC_PARAMS);
int SF_setDoorState(SCRIPTFUNC_PARAMS);
int SF_setActorZ(SCRIPTFUNC_PARAMS);
int SF_text(SCRIPTFUNC_PARAMS);
int SF_getActorX(SCRIPTFUNC_PARAMS);
int SF_getActorY(SCRIPTFUNC_PARAMS);
int SF_eraseDelta(SCRIPTFUNC_PARAMS);
int SF_playMusic(SCRIPTFUNC_PARAMS);
int SF_pickClimbOutPos(SCRIPTFUNC_PARAMS);
int SF_tossRif(SCRIPTFUNC_PARAMS);
int SF_showControls(SCRIPTFUNC_PARAMS);
int SF_showMap(SCRIPTFUNC_PARAMS);
int SF_puzzleWon(SCRIPTFUNC_PARAMS);
int SF_enableEscape(SCRIPTFUNC_PARAMS);
int SF_playSound(SCRIPTFUNC_PARAMS);
int SF_playLoopedSound(SCRIPTFUNC_PARAMS);
int SF_getDeltaFrame(SCRIPTFUNC_PARAMS);
int SF_showProtect(SCRIPTFUNC_PARAMS);
int SF_protectResult(SCRIPTFUNC_PARAMS);
int SF_rand(SCRIPTFUNC_PARAMS);
int SF_fadeMusic(SCRIPTFUNC_PARAMS);
int SF_playVoice(SCRIPTFUNC_PARAMS);
};
inline int getSWord(ScriptDataWord word) {
uint16 uInt = word;
int sInt;
if (uInt & 0x8000U) {
sInt = (int)(uInt - 0x8000U) - 0x7FFF - 1;
} else {
sInt = uInt;
}
return sInt;
}
inline uint getUWord(ScriptDataWord word) {
return (uint16) word;
}
} // End of namespace Saga
#endif
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