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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/yslib.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 SFUNC_NUM 78
typedef unsigned int SDataWord_T;
enum SCRIPT_VERBS {
S_VERB_WALKTO = 0,
S_VERB_LOOKAT = 2,
S_VERB_PICKUP = 1,
S_VERB_TALKTO,
S_VERB_OPEN = 5,
S_VERB_CLOSE = 6,
S_VERB_USE = 8,
S_VERB_GIVE
};
#define STHREAD_TIMESLICE 8
struct SEMAPHORE {
int hold_count;
};
enum {
kVarObject = 0,
kVarWithObject,
kVarAction,
kVarActor
};
enum {
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 {
kTWaitNone = 0, // waiting for nothing
kTWaitDelay, // waiting for a timer
kTWaitSpeech, // waiting for speech to finish
kTWaitDialogEnd, // waiting for my dialog to finish
kTWaitDialogBegin, // waiting for other dialog to finish
kTWaitWalk, // waiting to finish walking
kTWaitRequest, // a request is up
kTWaitPause
};
struct SCRIPT_THREAD {
int flags;
int waitType;
uint sleepTime;
int ep_num; // Entrypoint number
unsigned long ep_offset; // Entrypoint offset
unsigned long i_offset; // Instruction offset
SEMAPHORE sem; // FIXME: no equivalent. should be replaced with flags
// 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.
SDataWord_T stackBuf[64];
int stackPtr;
int framePtr;
SDataWord_T threadVars[4];
SDataWord_T retVal;
SDataWord_T stackTop() {
return stackBuf[stackPtr];
}
int stackSize() {
return ARRAYSIZE(stackBuf) - stackPtr - 1;
}
void push(SDataWord_T n) {
assert(stackPtr > 0);
stackBuf[--stackPtr] = n;
}
SDataWord_T pop() {
assert(stackPtr < ARRAYSIZE(stackBuf));
return stackBuf[stackPtr++];
}
};
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 DIALOGUE_LIST {
unsigned int n_dialogue;
const char **str;
size_t *str_off;
};
struct VOICE_LUT {
int n_voices;
int *voices;
};
struct SCRIPTDATA {
int loaded;
SCRIPT_BYTECODE *bytecode;
DIALOGUE_LIST *diag;
VOICE_LUT *voice;
};
struct SCRIPT_LUT_ENTRY {
int script_rn;
int diag_list_rn;
int voice_lut_rn;
};
struct SCRIPT_DATABUF {
SDataWord_T *data;
int len;
};
#define SCRIPTFUNC_PARAMS SCRIPT_THREAD *thread
class Script {
public:
Script();
~Script();
int reg(void);
int loadScript(int scriptNum);
int freeScript();
SCRIPT_BYTECODE *loadBytecode(byte *bytecode_p, size_t bytecode_len);
DIALOGUE_LIST *loadDialogue(const byte *dialogue_p, size_t dialogue_len);
VOICE_LUT *loadVoiceLUT(const byte *voicelut_p, size_t voicelut_len, SCRIPTDATA *script);
int disassemble(SCRIPT_BYTECODE *script_list, DIALOGUE_LIST *diag_list);
bool isInitialized() const { return _initialized; }
bool isVoiceLUTPresent() const { return _voiceLUTPresent; }
SCRIPTDATA *currentScript() { return _currentScript; }
void setBuffer(int idx, SCRIPT_DATABUF *ptr) { _dataBuf[idx] = ptr; }
SCRIPT_DATABUF *dataBuffer(int idx) { return _dataBuf[idx]; }
YS_DL_LIST *threadList() { return _threadList; }
void scriptInfo(int argc, char *argv[]);
void scriptExec(int argc, char *argv[]);
protected:
bool _initialized;
bool _voiceLUTPresent;
RSCFILE_CONTEXT *_scriptContext;
SCRIPT_LUT_ENTRY *_scriptLUT;
int _scriptLUTMax;
uint16 _scriptLUTEntryLen;
SCRIPTDATA *_currentScript;
SCRIPT_DATABUF *_dataBuf[SCRIPT_DATABUF_NUM];
YS_DL_LIST *_threadList;
bool _skipSpeeches;
bool _abortEnabled;
public:
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 SThreadExecThreads(uint msec);
int SThreadHoldSem(SEMAPHORE *sem);
int SThreadReleaseSem(SEMAPHORE *sem);
int SThreadDebugStep();
void SThreadCompleteThread(void);
int SThreadDestroy(SCRIPT_THREAD *thread);
void SThreadAbortAll(void);
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::*SFunc_T)(SCRIPTFUNC_PARAMS);
struct SFUNC_ENTRY {
int sfunc_num;
int sfunc_argc;
SFunc_T sfunc_fp;
};
const SFUNC_ENTRY *_SFuncList;
void setupScriptFuncList(void);
int SDebugPrintInstr(SCRIPT_THREAD *thread);
int SF_sleep(SCRIPTFUNC_PARAMS);
int SF_takeObject(SCRIPTFUNC_PARAMS);
int SF_objectIsCarried(SCRIPTFUNC_PARAMS);
int SF_setStatusText(SCRIPTFUNC_PARAMS);
int SF_commandMode(SCRIPTFUNC_PARAMS);
int SF_actorWalkTo(SCRIPTFUNC_PARAMS);
int SF_setFacing(SCRIPTFUNC_PARAMS);
int SF_startBgdAnim(SCRIPTFUNC_PARAMS);
int SF_freezeInterface(SCRIPTFUNC_PARAMS);
int SF_dialogMode(SCRIPTFUNC_PARAMS);
int SF_startAnim(SCRIPTFUNC_PARAMS);
int SF_stopBgdAnim(SCRIPTFUNC_PARAMS);
int SF_actorWalkToAsync(SCRIPTFUNC_PARAMS);
int SF_moveTo(SCRIPTFUNC_PARAMS);
int SF_actorWalk(SCRIPTFUNC_PARAMS);
int SF_cycleActorFrames(SCRIPTFUNC_PARAMS);
int SF_setFrame(SCRIPTFUNC_PARAMS);
int SF_setRightPortrait(SCRIPTFUNC_PARAMS);
int SF_setLeftPortrait(SCRIPTFUNC_PARAMS);
int SF_linkAnim(SCRIPTFUNC_PARAMS);
int SF_placeActor(SCRIPTFUNC_PARAMS);
int SF_checkUserInterrupt(SCRIPTFUNC_PARAMS);
int SF_moveRelative(SCRIPTFUNC_PARAMS);
int SF_doAction(SCRIPTFUNC_PARAMS);
int SF_faceTowards(SCRIPTFUNC_PARAMS);
int SF_setFollower(SCRIPTFUNC_PARAMS);
int SF_setBgdAnimSpeed(SCRIPTFUNC_PARAMS);
int SF_centerActor(SCRIPTFUNC_PARAMS);
int SF_setActorState(SCRIPTFUNC_PARAMS);
int SF_finishBgdAnim(SCRIPTFUNC_PARAMS);
int SF_swapActors(SCRIPTFUNC_PARAMS);
int SF_scriptSpecialWalk(SCRIPTFUNC_PARAMS);
int SF_walkRelative(SCRIPTFUNC_PARAMS);
int SF_throwActor(SCRIPTFUNC_PARAMS);
int SF_waitWalk(SCRIPTFUNC_PARAMS);
int SF_changeActorScene(SCRIPTFUNC_PARAMS);
int SF_climb(SCRIPTFUNC_PARAMS);
int SF_setActorZ(SCRIPTFUNC_PARAMS);
int SF_getActorX(SCRIPTFUNC_PARAMS);
int SF_getActorY(SCRIPTFUNC_PARAMS);
int SF_playMusic(SCRIPTFUNC_PARAMS);
int SF_enableEscape(SCRIPTFUNC_PARAMS);
int SF_playSound(SCRIPTFUNC_PARAMS);
int SF_gotoScene(SCRIPTFUNC_PARAMS);
int SF_rand(SCRIPTFUNC_PARAMS);
int SF_sceneEq(SCRIPTFUNC_PARAMS);
int SF_placard(SCRIPTFUNC_PARAMS);
int SF_placardOff(SCRIPTFUNC_PARAMS);
int SF_fadeMusic(SCRIPTFUNC_PARAMS);
};
} // End of namespace Saga
#endif
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