mirror of
https://github.com/libretro/scummvm.git
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387 lines
10 KiB
C++
387 lines
10 KiB
C++
/* ScummVM - Scumm Interpreter
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* Copyright (C) 2004 The ScummVM project
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*
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* The ReInherit Engine is (C)2000-2003 by Daniel Balsom.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* $Header$
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*
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*/
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// Scripting module private header
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#ifndef SAGA_SCRIPT_H
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#define SAGA_SCRIPT_H
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#include "saga/text.h"
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#include "saga/list.h"
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namespace Saga {
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#define SCRIPT_DATABUF_NUM 5
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#define SCRIPT_DATABUF_LEN 1024
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#define S_LUT_ENTRYLEN_ITECD 22
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#define S_LUT_ENTRYLEN_ITEDISK 16
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#define SCRIPT_TBLENTRY_LEN 4
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#define SCRIPT_MAX 5000
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#define SCRIPTLIST_HDR 12
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#define SCRIPT_STRINGLIMIT 255
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#define TAB " "
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#define S_ERROR_PREFIX "SError: "
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#define S_WARN_PREFIX "SWarning: "
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#define SCRIPT_FUNCTION_MAX 78
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typedef unsigned int ScriptDataWord;
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enum SCRIPT_VERBS {
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S_VERB_WALKTO = 0,
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S_VERB_LOOKAT = 2,
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S_VERB_PICKUP = 1,
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S_VERB_TALKTO,
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S_VERB_OPEN = 5,
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S_VERB_CLOSE = 6,
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S_VERB_USE = 8,
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S_VERB_GIVE
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};
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#define STHREAD_TIMESLICE 8
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struct SEMAPHORE {
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int hold_count;
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};
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enum {
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kVarObject = 0,
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kVarWithObject,
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kVarAction,
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kVarActor
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};
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enum ThreadFlags {
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kTFlagNone = 0,
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kTFlagWaiting = 1, // wait for even denoted in waitType
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kTFlagFinished = 2,
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kTFlagAborted = 4,
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kTFlagAsleep = 7 // Combination of all flags which can halt a thread
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};
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enum ThreadWaitTypes {
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kWaitTypeNone = 0, // waiting for nothing
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kWaitTypeDelay = 1, // waiting for a timer
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kWaitTypeSpeech = 2, // waiting for speech to finish
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kWaitTypeDialogEnd = 3, // waiting for my dialog to finish
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kWaitTypeDialogBegin = 4, // waiting for other dialog to finish
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kWaitTypeWalk = 5, // waiting to finish walking
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kWaitTypeRequest = 6, // a request is up
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kWaitTypePause = 7
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};
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enum OpCodes {
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//...
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opCcall = 0x18,
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opCcallV = 0x19,
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//...
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opSpeak = 0x53
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};
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enum CycleFlags {
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kCyclePong = (1 << 0),
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kCycleOnce = (1 << 1),
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kCycleRandom = (1 << 2),
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kCycleReverse = (1 << 3)
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};
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struct SCRIPT_THREAD {
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int flags; // ThreadFlags
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int waitType; // ThreadWaitTypes
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void *threadObj; // which object we're handling
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uint sleepTime;
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int ep_num; // Entrypoint number
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unsigned long ep_offset; // Entrypoint offset
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unsigned long i_offset; // Instruction offset
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SEMAPHORE sem; // FIXME: no equivalent. should be replaced with flags
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// The scripts are allowed to access the stack like any other memory
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// area. It's therefore probably quite important that our stacks work
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// the same as in the original interpreter.
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ScriptDataWord stackBuf[64];
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int stackPtr;
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int framePtr;
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ScriptDataWord threadVars[4];
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ScriptDataWord retVal;
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ScriptDataWord stackTop() {
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return stackBuf[stackPtr];
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}
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int stackSize() {
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return ARRAYSIZE(stackBuf) - stackPtr - 1;
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}
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void push(ScriptDataWord n) {
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assert(stackPtr > 0);
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stackBuf[--stackPtr] = n;
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}
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ScriptDataWord pop() {
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assert(stackPtr < ARRAYSIZE(stackBuf));
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return stackBuf[stackPtr++];
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}
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void wait(int aWaitType) {
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waitType = aWaitType;
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flags |= kTFlagWaiting;
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}
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SCRIPT_THREAD() { memset(this, 0, sizeof(*this)); }
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};
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typedef SortedList<SCRIPT_THREAD> ScriptThreadList;
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struct PROC_TBLENTRY {
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size_t name_offset;
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size_t offset;
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};
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struct SCRIPT_BYTECODE {
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unsigned char *bytecode_p;
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size_t bytecode_len;
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size_t ep_tbl_offset;
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unsigned long n_entrypoints;
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PROC_TBLENTRY *entrypoints;
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};
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struct StringsList {
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int stringsCount;
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const char **strings;
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};
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struct VOICE_LUT {
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int n_voices;
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int *voices;
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};
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struct SCRIPTDATA {
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int loaded;
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SCRIPT_BYTECODE *bytecode;
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StringsList *strings;
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VOICE_LUT *voice;
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};
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struct SCRIPT_LUT_ENTRY {
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int script_rn;
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int diag_list_rn;
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int voice_lut_rn;
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};
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struct ScriptDataBuf {
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ScriptDataWord *data;
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int length;
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};
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#define SCRIPTFUNC_PARAMS SCRIPT_THREAD *thread, int nArgs
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class Script {
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public:
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Script();
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~Script();
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void CF_script_togglestep();
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int loadScript(int scriptNum);
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int freeScript();
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SCRIPT_BYTECODE *loadBytecode(byte *bytecode_p, size_t bytecode_len);
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void loadStrings(const byte *stringsList, size_t stringsLength, StringsList *&strings);
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VOICE_LUT *loadVoiceLUT(const byte *voicelut_p, size_t voicelut_len, SCRIPTDATA *script);
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int disassemble(SCRIPT_BYTECODE *script_list, StringsList *strings);
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bool isInitialized() const { return _initialized; }
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bool isVoiceLUTPresent() const { return _voiceLUTPresent; }
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SCRIPTDATA *currentScript() { return _currentScript; }
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ScriptDataBuf *dataBuffer(int idx) { return &_dataBuf[idx]; }
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int getWord(int bufNumber, int wordNumber, ScriptDataWord *data);
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int putWord(int bufNumber, int wordNumber, ScriptDataWord data);
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int setBit(int bufNumber, ScriptDataWord bitNumber, int bitState);
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int getBit(int bufNumber, ScriptDataWord bitNumber, int *bitState);
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const char *getString(int index);
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void scriptInfo();
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void scriptExec(int argc, const char **argv);
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protected:
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bool _initialized;
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bool _voiceLUTPresent;
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RSCFILE_CONTEXT *_scriptContext;
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SCRIPT_LUT_ENTRY *_scriptLUT;
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int _scriptLUTMax;
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uint16 _scriptLUTEntryLen;
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SCRIPTDATA *_currentScript;
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ScriptDataBuf _dataBuf[SCRIPT_DATABUF_NUM];
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ScriptThreadList _threadList;
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public:
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bool _skipSpeeches;
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bool _abortEnabled;
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int _dbg_singlestep;
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int _dbg_dostep;
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SCRIPT_THREAD *_dbg_thread;
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TEXTLIST_ENTRY *_dbg_txtentry;
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public:
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SCRIPT_THREAD *SThreadCreate();
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int SThreadExecute(SCRIPT_THREAD *thread, int ep_num);
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int executeThreads(uint msec);
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int SThreadHoldSem(SEMAPHORE *sem);
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int SThreadReleaseSem(SEMAPHORE *sem);
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int SThreadDebugStep();
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void SThreadCompleteThread(void);
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int SThreadDestroy(SCRIPT_THREAD *thread);
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void wakeUpActorThread(int waitType, void *threadObj);
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void wakeUpThreads(int waitType);
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void wakeUpThreadsDelayed(int waitType, int sleepTime);
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private:
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void setFramePtr(SCRIPT_THREAD *thread, int newPtr);
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unsigned char *SThreadGetReadPtr(SCRIPT_THREAD *thread);
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unsigned long SThreadGetReadOffset(const byte *read_p);
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size_t SThreadGetReadLen(SCRIPT_THREAD *thread);
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int SThreadRun(SCRIPT_THREAD *thread, int instr_limit);
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int SThreadSetEntrypoint(SCRIPT_THREAD *thread, int ep_num);
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private:
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typedef int (Script::*ScriptFunctionType)(SCRIPTFUNC_PARAMS);
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const ScriptFunctionType *_scriptFunctionsList;
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void setupScriptFuncList(void);
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int SDebugPrintInstr(SCRIPT_THREAD *thread);
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int SF_putString(SCRIPTFUNC_PARAMS);
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int sfWait(SCRIPTFUNC_PARAMS);
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int SF_takeObject(SCRIPTFUNC_PARAMS);
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int SF_objectIsCarried(SCRIPTFUNC_PARAMS);
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int SF_setStatusText(SCRIPTFUNC_PARAMS);
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int SF_commandMode(SCRIPTFUNC_PARAMS);
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int SF_actorWalkTo(SCRIPTFUNC_PARAMS);
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int SF_doAction(SCRIPTFUNC_PARAMS);
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int sfSetActorFacing(SCRIPTFUNC_PARAMS);
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int SF_startBgdAnim(SCRIPTFUNC_PARAMS);
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int SF_stopBgdAnim(SCRIPTFUNC_PARAMS);
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int SF_freezeInterface(SCRIPTFUNC_PARAMS);
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int SF_dialogMode(SCRIPTFUNC_PARAMS);
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int SF_killActorThreads(SCRIPTFUNC_PARAMS);
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int SF_faceTowards(SCRIPTFUNC_PARAMS);
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int sfSetFollower(SCRIPTFUNC_PARAMS);
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int SF_gotoScene(SCRIPTFUNC_PARAMS);
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int SF_setObjImage(SCRIPTFUNC_PARAMS);
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int SF_setObjName(SCRIPTFUNC_PARAMS);
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int SF_getObjImage(SCRIPTFUNC_PARAMS);
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int SF_getNumber(SCRIPTFUNC_PARAMS);
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int SF_openDoor(SCRIPTFUNC_PARAMS);
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int SF_closeDoor(SCRIPTFUNC_PARAMS);
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int SF_setBgdAnimSpeed(SCRIPTFUNC_PARAMS);
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int SF_cycleColors(SCRIPTFUNC_PARAMS);
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int SF_centerActor(SCRIPTFUNC_PARAMS);
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int SF_startAnim(SCRIPTFUNC_PARAMS);
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int SF_actorWalkToAsync(SCRIPTFUNC_PARAMS);
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int SF_enableZone(SCRIPTFUNC_PARAMS);
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int sfSetActorState(SCRIPTFUNC_PARAMS);
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int scriptMoveTo(SCRIPTFUNC_PARAMS);
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int SF_sceneEq(SCRIPTFUNC_PARAMS);
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int SF_dropObject(SCRIPTFUNC_PARAMS);
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int SF_finishBgdAnim(SCRIPTFUNC_PARAMS);
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int sfSwapActors(SCRIPTFUNC_PARAMS);
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int sfSimulSpeech(SCRIPTFUNC_PARAMS);
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int SF_actorWalk(SCRIPTFUNC_PARAMS);
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int sfCycleFrames(SCRIPTFUNC_PARAMS);
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int sfSetFrame(SCRIPTFUNC_PARAMS);
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int SF_setRightPortrait(SCRIPTFUNC_PARAMS);
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int SF_setLeftPortrait(SCRIPTFUNC_PARAMS);
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int SF_linkAnim(SCRIPTFUNC_PARAMS);
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int SF_scriptSpecialWalk(SCRIPTFUNC_PARAMS);
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int sfPlaceActor(SCRIPTFUNC_PARAMS);
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int SF_checkUserInterrupt(SCRIPTFUNC_PARAMS);
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int SF_walkRelative(SCRIPTFUNC_PARAMS);
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int SF_moveRelative(SCRIPTFUNC_PARAMS);
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int SF_simulSpeech2(SCRIPTFUNC_PARAMS);
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int SF_placard(SCRIPTFUNC_PARAMS);
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int SF_placardOff(SCRIPTFUNC_PARAMS);
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int SF_setProtagState(SCRIPTFUNC_PARAMS);
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int SF_resumeBgdAnim(SCRIPTFUNC_PARAMS);
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int SF_throwActor(SCRIPTFUNC_PARAMS);
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int SF_waitWalk(SCRIPTFUNC_PARAMS);
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int SF_sceneID(SCRIPTFUNC_PARAMS);
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int SF_changeActorScene(SCRIPTFUNC_PARAMS);
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int SF_climb(SCRIPTFUNC_PARAMS);
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int SF_setDoorState(SCRIPTFUNC_PARAMS);
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int SF_setActorZ(SCRIPTFUNC_PARAMS);
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int SF_text(SCRIPTFUNC_PARAMS);
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int SF_getActorX(SCRIPTFUNC_PARAMS);
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int SF_getActorY(SCRIPTFUNC_PARAMS);
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int SF_eraseDelta(SCRIPTFUNC_PARAMS);
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int SF_playMusic(SCRIPTFUNC_PARAMS);
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int SF_pickClimbOutPos(SCRIPTFUNC_PARAMS);
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int SF_tossRif(SCRIPTFUNC_PARAMS);
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int SF_showControls(SCRIPTFUNC_PARAMS);
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int SF_showMap(SCRIPTFUNC_PARAMS);
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int SF_puzzleWon(SCRIPTFUNC_PARAMS);
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int SF_enableEscape(SCRIPTFUNC_PARAMS);
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int SF_playSound(SCRIPTFUNC_PARAMS);
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int SF_playLoopedSound(SCRIPTFUNC_PARAMS);
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int SF_getDeltaFrame(SCRIPTFUNC_PARAMS);
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int SF_showProtect(SCRIPTFUNC_PARAMS);
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int SF_protectResult(SCRIPTFUNC_PARAMS);
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int SF_rand(SCRIPTFUNC_PARAMS);
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int SF_fadeMusic(SCRIPTFUNC_PARAMS);
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int SF_playVoice(SCRIPTFUNC_PARAMS);
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};
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inline int getSWord(ScriptDataWord word) {
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uint16 uInt = word;
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int sInt;
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if (uInt & 0x8000U) {
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sInt = (int)(uInt - 0x8000U) - 0x7FFF - 1;
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} else {
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sInt = uInt;
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}
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return sInt;
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}
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inline uint getUWord(ScriptDataWord word) {
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return (uint16) word;
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}
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} // End of namespace Saga
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#endif
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