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scummvm/engines/toltecs/script.cpp

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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.
*
*
*/
// TODO: Clean up game variable handling and move it to ToltecsEngine
#include "common/events.h"
#include "common/keyboard.h"
#include "common/file.h"
#include "common/savefile.h"
#include "common/config-manager.h"
#include "base/plugins.h"
#include "base/version.h"
#include "sound/mixer.h"
#include "toltecs/toltecs.h"
#include "toltecs/animation.h"
#include "toltecs/palette.h"
#include "toltecs/resource.h"
#include "toltecs/script.h"
#include "toltecs/screen.h"
#include "toltecs/segmap.h"
namespace Toltecs {
ScriptInterpreter::ScriptInterpreter(ToltecsEngine *vm) : _vm(vm) {
_stack = new byte[kScriptStackSize];
memset(_slots, 0, sizeof(_slots));
_savedSp = 0;
}
ScriptInterpreter::~ScriptInterpreter() {
delete[] _stack;
}
void ScriptInterpreter::loadScript(uint resIndex, uint slotIndex) {
if (_slots[slotIndex].data) {
delete[] _slots[slotIndex].data;
}
_slots[slotIndex].resIndex = resIndex;
byte *scriptData = _vm->_res->load(resIndex);
_slots[slotIndex].size = _vm->_res->getCurItemSize();
_slots[slotIndex].data = new byte[_slots[slotIndex].size];
memcpy(_slots[slotIndex].data, scriptData, _slots[slotIndex].size);
}
void ScriptInterpreter::runScript(uint slotIndex) {
_switchLocalDataNear = true;
_switchLocalDataFar = false;
_switchLocalDataToStack = false;
_cmpBitTest = false;
_regs.reg0 = 0;
_regs.reg1 = 0;
_regs.reg2 = 0;
_regs.reg3 = 0;
_regs.reg4 = slotIndex;
_regs.reg5 = 0;
_regs.reg6 = 0;
_regs.sp = 4096;
_regs.reg8 = 0;
_code = getSlotData(_regs.reg4);
while (1) {
if (_vm->_movieSceneFlag)
_vm->_mouseButton = 0;
if (_switchLocalDataNear) {
_switchLocalDataNear = false;
_localData = getSlotData(_regs.reg4);
}
if (_switchLocalDataFar) {
_switchLocalDataFar = false;
_localData = getSlotData(_regs.reg5);
_switchLocalDataNear = true;
}
if (_switchLocalDataToStack) {
_switchLocalDataToStack = false;
_localData = _stack + 2;
_switchLocalDataNear = true;
}
byte opcode = readByte();
execOpcode(opcode);
// Call updateScreen roughly every 10ms else the mouse cursor will be jerky
if (_vm->_system->getMillis() % 10 == 0)
_vm->_system->updateScreen();
}
}
byte ScriptInterpreter::readByte() {
return *_code++;
}
int16 ScriptInterpreter::readInt16() {
int16 value = READ_LE_UINT16(_code);
_code += 2;
return value;
}
void look(byte *code) {
char ln[256];
snprintf(ln, 256, "\t\t\t%02X %02X %02X %02X %02X %02X %02X %02X",
code[0], code[1], code[2], code[3], code[4], code[5], code[6], code[7]);
debug(1, "%s", ln);
}
void ScriptInterpreter::execOpcode(byte opcode) {
#if 0
char ln[256];
snprintf(ln, 256, "\t\t\t%02X %02X %02X %02X %02X %02X %02X %02X",
_code[0], _code[1], _code[2], _code[3], _code[4], _code[5], _code[6], _code[7]);
debug(1, "%s", ln);
#endif
int16 ofs;
debug(1, "opcode = %d", opcode);
switch (opcode) {
case 0:
{
// ok
_subCode = _code;
byte length = readByte();
debug(1, "length = %d", length);
uint16 kernelOpcode = readInt16();
debug(1, "callKernel %d", kernelOpcode);
execKernelOpcode(kernelOpcode);
_code += length - 2;
break;
}
case 1:
// ok
_regs.reg0 = readInt16();
debug(1, "mov reg0, #%d", _regs.reg0);
break;
case 2:
// ok
_regs.reg1 = readInt16();
debug(1, "mov reg1, #%d", _regs.reg1);
break;
case 3:
// ok
_regs.reg3 = readInt16();
debug(1, "mov reg3, #%d", _regs.reg3);
break;
case 4:
// ok
_regs.reg5 = _regs.reg0;
debug(1, "mov reg5, reg0");
break;
case 5:
// ok
_regs.reg3 = _regs.reg0;
debug(1, "mov reg3, reg0");
break;
case 6:
// ok
_regs.reg1 = _regs.reg0;
debug(1, "mov reg1, reg0");
break;
case 7:
_regs.reg1 = localRead16(_regs.reg3);
debug(1, "mov reg1, *%d", _regs.reg3);
break;
case 8:
localWrite16(_regs.reg3, _regs.reg0);
break;
case 9:
localWrite16(readInt16(), _regs.reg0);
break;
case 10:
localWrite8(readInt16(), _regs.reg0);
break;
case 11:
localWrite16(readInt16(), _regs.reg5);
break;
case 12:
localWrite16(readInt16(), _regs.reg4);
break;
case 13:
localWrite16(readInt16(), _regs.reg3);
break;
case 14:
_regs.reg3 = localRead16(readInt16());
break;
case 15:
_regs.reg2 = localRead16(_regs.reg1);
break;
case 16:
_regs.reg2 = localRead16(_regs.reg1 + readInt16());
break;
case 17:
_regs.reg2 = _regs.reg0;
break;
case 18:
_regs.reg0 += readInt16();
break;
case 19:
localWrite16(_regs.reg3, localRead16(_regs.reg3) + _regs.reg0);
break;
case 20:
_regs.reg0 += _regs.reg2;
break;
case 21:
_regs.reg3 += _regs.sp;
break;
case 22:
_regs.reg1 += _regs.sp;
break;
case 23:
localWrite16(_regs.reg3, localRead16(_regs.reg3) - _regs.reg0);
break;
case 24:
_regs.reg0 /= readInt16();
break;
case 25:
localWrite16(_regs.reg3, localRead16(_regs.reg3) / _regs.reg0);
break;
case 26:
// NOP
break;
case 27:
_regs.reg0 *= readInt16();
break;
case 28:
localWrite16(_regs.reg3, localRead16(_regs.reg3) * _regs.reg0);
break;
case 29:
_regs.reg0 *= _regs.reg2;
break;
case 30:
localWrite16(_regs.reg3, localRead16(_regs.reg3) + 1);
break;
case 31:
localWrite16(_regs.reg3, localRead16(_regs.reg3) - 1);
break;
case 32:
_switchLocalDataFar = true;
break;
case 33:
_switchLocalDataToStack = true;
break;
case 34:
pushInt16(_regs.reg0);
debug(1, "pushw reg0");
break;
case 35:
pushInt16(_regs.reg1);
debug(1, "pushw reg1");
break;
case 36:
_regs.reg1 = popInt16();
debug(1, "popw reg1");
break;
case 37:
_regs.reg0 = popInt16();
debug(1, "popw reg0");
break;
case 38:
_regs.reg2 = -_regs.reg2;
break;
case 39:
_regs.reg8 = readInt16();
_cmpBitTest = false;
break;
case 40:
_regs.reg8 = _regs.reg0;
_cmpBitTest = false;
break;
case 41:
_regs.reg8 = readInt16();
_cmpBitTest = true;
break;
case 42:
_regs.reg8 = _regs.reg0;
_cmpBitTest = true;
break;
case 43:
debug(1, "retn (slot: %d; ofs: %04X)\n", _regs.reg4, _regs.reg0);
_code = getSlotData(_regs.reg4) + _regs.reg0;
break;
case 44:
debug(1, "retf (slot: %d; ofs: %04X)\n", _regs.reg5, _regs.reg0);
_code = getSlotData(_regs.reg5) + _regs.reg0;
_regs.reg4 = _regs.reg5;
_switchLocalDataNear = true;
break;
case 45:
debug(1, "callnear %04X (slot: %d; ofs: %04X)\n", _regs.reg0, _regs.reg4, _regs.reg0);
pushInt16(_code - getSlotData(_regs.reg4));
pushInt16(_regs.reg4);
_code = getSlotData(_regs.reg4) + _regs.reg0;
break;
case 46:
debug(1, "callfar %04X (slot: %d; ofs: %04X)\n", _regs.reg0, _regs.reg5, _regs.reg0);
pushInt16(_code - getSlotData(_regs.reg4));
pushInt16(_regs.reg4);
_code = getSlotData(_regs.reg5) + _regs.reg0;
_regs.reg4 = _regs.reg5;
_switchLocalDataNear = true;
break;
case 47:
_regs.reg4 = popInt16();
ofs = popInt16();
_code = getSlotData(_regs.reg4) + ofs;
debug(1, "ret (slot: %d; ofs: %04X)\n", _regs.reg4, ofs);
//_code = getSlotData(_regs.reg4) + popInt16();
_switchLocalDataNear = true;
break;
case 48:
_regs.reg4 = popInt16();
ofs = popInt16();
_code = getSlotData(_regs.reg4) + ofs;
debug(1, "retsp (slot: %d; ofs: %04X)\n", _regs.reg4, ofs);
//_code = getSlotData(_regs.reg4) + popInt16();
_regs.sp += _regs.reg0;
_switchLocalDataNear = true;
break;
case 49:
ofs = readByte();
_code += ofs;
break;
case 50:
if (_cmpBitTest) {
_regs.reg1 &= _regs.reg8;
if (_regs.reg1 == 0)
_code += 4;
} else {
if (_regs.reg1 == _regs.reg8)
_code += 4;
}
_code++;
break;
case 51:
if (_cmpBitTest) {
_regs.reg1 &= _regs.reg8;
if (_regs.reg1 != 0)
_code += 4;
} else {
if (_regs.reg1 != _regs.reg8)
_code += 4;
}
_code++;
break;
case 52:
if ((uint16)_regs.reg1 >= (uint16)_regs.reg8)
_code += 4;
_code++;
break;
case 53:
if ((uint16)_regs.reg1 <= (uint16)_regs.reg8)
_code += 4;
_code++;
break;
case 54:
if ((uint16)_regs.reg1 < (uint16)_regs.reg8)
_code += 4;
_code++;
break;
case 55:
if ((uint16)_regs.reg1 > (uint16)_regs.reg8)
_code += 4;
_code++;
break;
default:
{
/*
FILE *ex = fopen("error.0", "wb");
fwrite(_code - 8, 4096, 1, ex);
fclose(ex);
*/
error("Invalid opcode %d", opcode);
}
}
}
void ScriptInterpreter::execKernelOpcode(uint16 kernelOpcode) {
switch (kernelOpcode) {
case 0:
case 1:
// ok, NOPs
break;
case 2:// ok
{
debug(0, "o2_getGameVar(%d, %d)", arg16(3), arg16(5));
int16 value = getGameVar(arg16(3));
localWrite16(arg16(5), value);
break;
}
case 3:// ok
{
debug(0, "o2_setGameVar(%d, %d)", arg16(3), arg16(5));
VarType varType = getGameVarType(arg16(3));
int16 value;
if (varType == vtByte)
value = arg8(5);
else if (varType == vtWord)
value = arg16(5);
setGameVar(arg16(3), value);
break;
}
case 4:
{
debug(0, "o2_updateScreen()");
// TODO? updateSamples();
_vm->_screen->updateShakeScreen();
if (_vm->_quitGame)
return;
if (!_vm->_movieSceneFlag)
_vm->updateInput();
else
_vm->_mouseButton = 0;
// TODO? Check keyb
_vm->_counter01--;
if (_vm->_counter01 <= 0) {
_vm->_counter01 = MIN(_vm->_counter02, 30);
_vm->_counter02 = 0;
_vm->updateScreen();
_vm->_flag01 = 1;
_vm->_system->delayMillis(5);
_vm->_counter02 = 1; // ?
} else {
_vm->_screen->clearSprites();
_vm->_flag01 = 0;
//_vm->_system->updateScreen();
}
// TODO
break;
}
case 5:// ok
{
debug(0, "o2_getRandomNumber(%d)", arg16(3));
localWrite16(arg16(5), _vm->_rnd->getRandomNumber(arg16(3) - 1));
break;
}
case 6:// ok
{
debug(0, "o2_printText()");
_vm->_screen->printText((byte*)localPtr(arg16(3)));
break;
}
case 7:// ok
{
debug(0, "o2_updateVerbLine(slot: %d; offset: %04X)", arg16(5), arg16(3));
_vm->_screen->updateVerbLine(arg16(5), arg16(3));
break;
}
case 8:// ok
{
debug(0, "o2_setFontColor(%d)", arg8(3));
_vm->_screen->_fontColor1 = 0;
_vm->_screen->_fontColor2 = arg8(3);
break;
}
case 9:// ok
{
debug(0, "o2_getTalkTextDuration()");
int16 duration = _vm->_screen->getTalkTextDuration();
localWrite16(arg16(3), duration);
break;
}
case 10:// ok
{
debug(0, "o2_talk(slot: %d; offset: %d)", arg16(5), arg16(3));
_vm->talk(arg16(5), arg16(3));
break;
}
case 11:// ok
{
debug(0, "o2_findFragment(%d, %d)", arg16(3), arg16(5));
localWrite16(arg16(5), _vm->_palette->findFragment(arg16(3)));
break;
}
case 12:// ok
{
debug(0, "o2_clearPaletteFragments()");
_vm->_palette->clearFragments();
break;
}
case 13:// ok
{
debug(0, "o2_addFragment(%d, %d)", arg16(3), arg16(5));
_vm->_palette->addFragment(arg16(3), arg16(5));
break;
}
case 14:// ok
{
debug(0, "o2_setDeltaPalette(animPalette, %d, %d, %d, %d)", arg8(6), arg8(5), arg8(4), arg8(3));
_vm->_palette->setDeltaPalette(_vm->_palette->getAnimPalette(), arg8(6), (char)arg8(5), arg8(4), arg8(3));
break;
}
case 16:// ok
{
debug(0, "o2_buildColorTransTable(%d, %d, %d)", arg8(4), (char)arg8(3), arg8(5));
_vm->_palette->buildColorTransTable(arg8(4), (char)arg8(3), arg8(5));
break;
}
case 17:// ok
{
debug(0, "o2_setDeltaPalette(mainPalette, %d, %d, %d, %d)", arg8(6), arg8(5), arg8(4), arg8(3));
_vm->_palette->setDeltaPalette(_vm->_palette->getMainPalette(), arg8(6), (char)arg8(5), arg8(4), arg8(3));
break;
}
case 18:// ok
{
debug(0, "o2_loadScript(resIndex: %d; slotIndex: %d)", arg16(4), arg8(3));
int16 codeOfs = _code - getSlotData(_regs.reg4);
loadScript(arg16(4), arg8(3));
_code = getSlotData(_regs.reg4) + codeOfs;
_switchLocalDataNear = true;
break;
}
case 19:// ok
{
debug(0, "o2_registerFont(%d, %d)", arg8(3), arg16(4));
_vm->_screen->registerFont(arg8(3), arg16(4));
break;
}
case 20:// ok
{
debug(0, "o2_loadAddPalette(startIndex: %d; resIndex: %d)", arg8(3), arg16(4));
_vm->_palette->loadAddPalette(arg16(4), arg8(3));
break;
}
case 21:// TODO
{
debug(0, "o2_loadScene(resIndex: %d; flag: %d)", arg16(4), arg8(3));
if (arg8(3) == 0) {
_vm->loadScene(arg16(4));
} else {
_vm->_screen->loadMouseCursor(arg16(4));
}
break;
}
case 22:// ok
{
debug(0, "o2_setGuiHeight(%d)", arg8(3));
_vm->setGuiHeight(arg8(3));
break;
}
case 23:// ok
{
debug(0, "o2_findMouseInRectIndex1(offset: %d; slot: %d; elemSize: %d; var: %d; index: %d)", arg16(3), arg16(5), arg16(7), arg16(9), arg16(11));
int16 index = -1;
if (_vm->_mouseY < _vm->_cameraHeight) {
index = _vm->findRectAtPoint(getSlotData(arg16(5)) + arg16(3),
_vm->_mouseX + _vm->_cameraX,
_vm->_mouseY + _vm->_cameraY,
arg16(11) + 1, arg16(7));
}
localWrite16(arg16(9), index);
break;
}
case 24:// ok
{
debug(0, "o2_findMouseInRectIndex2(offset: %d, slot: %d, elemSize: %d, var: %d)", arg16(3), arg16(5), arg16(7), arg16(9));
int16 index = -1;
debug(0, "_vm->_mouseDisabled = %d", _vm->_mouseDisabled);
/* FIXME: This opcode is called after the Revistronic logo at the beginning,
but at the slot/offset there's bytecode and not a rect array as expected.
To avoid crashes we skip searching the rectangle index for now when scene 215 is active.
I don't know yet whether this is a bug in the original engine as well or just here.
Needs some more checking.
*/
if (_vm->_sceneResIndex != 215) {
if (_vm->_mouseY < _vm->_cameraHeight) {
index = _vm->findRectAtPoint(getSlotData(arg16(5)) + arg16(3),
_vm->_mouseX + _vm->_cameraX,
_vm->_mouseY + _vm->_cameraY,
0, arg16(7));
}
}
localWrite16(arg16(9), index);
break;
}
case 25:// ok
{
debug(0, "o2_drawGuiImage(x: %d; y: %d; resIndex: %d)", arg16(5), arg16(3), arg16(7));
_vm->_screen->drawGuiImage(arg16(5), arg16(3), arg16(7));
break;
}
case 26:// ok
{
debug(0, "o2_addAnimatedSpriteNoLoop(2; x: %d; y: %d; fragmentId: %d; offset: %d)", arg16(5), arg16(3), arg16(7), arg16(9));
_vm->_screen->addAnimatedSprite(arg16(5), arg16(3), arg16(7), (byte*)localPtr(0), (int16*)localPtr(arg16(9)), false, 2);
break;
}
case 27:// ok
{
debug(0, "o2_addAnimatedSprite(2; x: %d; y: %d; fragmentId: %d; offset: %d)", arg16(5), arg16(3), arg16(7), arg16(9));
_vm->_screen->addAnimatedSprite(arg16(5), arg16(3), arg16(7), (byte*)localPtr(0), (int16*)localPtr(arg16(9)), true, 2);
break;
}
case 28:// ok
{
debug(1, "o2_addStaticSprite()");
_vm->_screen->addStaticSprite(_subCode + 3);
break;
}
case 29:// ok
{
debug(0, "o2_addAnimatedSprite(1; x: %d; y: %d; value: %d; offset: %d)", arg16(5), arg16(3), arg16(7), arg16(9));
_vm->_screen->addAnimatedSprite(arg16(5), arg16(3), arg16(7), (byte*)localPtr(0), (int16*)localPtr(arg16(9)), true, 1);
break;
}
case 30:// ok
{
debug(0, "o2_findPath(sourceX: %d; sourceY: %d; destX: %d; destY: %d; slotIndex: %d; offset: %d)", arg16(5), arg16(3), arg16(9), arg16(7), arg16(13), arg16(11));
_vm->_segmap->findPath((int16*)(getSlotData(arg16(13)) + arg16(11)), arg16(9), arg16(7), arg16(5), arg16(3));
break;
}
case 31:// ok
{
debug(0, "o2_walk()");
_vm->walk(getSlotData(arg16(5)) + arg16(3));
break;
}
case 32:// ok
{
debug(0, "o2_scrollCameraUp()");
_vm->scrollCameraUp(4);
break;
}
case 33:// ok
{
debug(0, "o2_scrollCameraDown()");
_vm->scrollCameraDown(4);
break;
}
case 34:// ok
{
debug(0, "o2_scrollCameraLeft()");
_vm->scrollCameraLeft(4);
break;
}
case 35:// ok
{
debug(0, "o2_scrollCameraRight()");
_vm->scrollCameraRight(4);
break;
}
case 36:// ok
{
debug(0, "o2_scrollCameraUpEx(%d)", arg16(3));
_vm->scrollCameraUp(arg16(3));
break;
}
case 37:// ok
{
debug(0, "o2_scrollCameraDownEx(%d)", arg16(3));
_vm->scrollCameraDown(arg16(3));
break;
}
case 38:// ok
{
debug(0, "o2_scrollCameraLeftEx(%d)", arg16(3));
_vm->scrollCameraLeft(arg16(3));
break;
}
case 39:// ok
{
debug(0, "o2_scrollCameraRightEx(%d)", arg16(3));
_vm->scrollCameraRight(arg16(3));
break;
}
case 40:// ok
{
debug(0, "o2_setCamera(%d, %d)", arg16(5), arg16(3));
_vm->setCamera(arg16(5), arg16(3));
break;
}
case 42:// ok
{
debug(0, "o2_getRgbModifiertAtPoint(x: %d; y: %d; id: %d; varSlot: %d; varOffset: %d)", arg16(5), arg16(3), arg16(7), arg16(11), arg16(9));
byte *rgb = getSlotData(arg16(11)) + arg16(9);
_vm->_segmap->getRgbModifiertAtPoint(arg16(5), arg16(3), arg16(7), rgb[0], rgb[1], rgb[2]);
break;
}
case 43:// ok
{
debug(0, "o2_startAnim(%d)", arg16(3));
_vm->_anim->start(arg16(3));
break;
}
case 44:// ok
{
debug(0, "o2_animNextFrame()");
_vm->_anim->nextFrame();
break;
}
case 45:// ok
{
// NOP
break;
}
case 46:// ok
{
debug(0, "o2_getAnimFrameNumber(%d)", arg16(3));
localWrite16(arg16(3), _vm->_anim->getFrameNumber());
break;
}
case 47:
{
// almost ok
debug(0, "o2_getAnimStatus()");
int16 status = _vm->_anim->getStatus();
if (status == 0 || status == 1) {
// TODO mov screenFlag01, 0
}
localWrite16(arg16(3), status);
break;
}
case 48:// ok
{
_vm->_screen->startShakeScreen(arg16(3));
break;
}
case 49:// ok
{
_vm->_screen->stopShakeScreen();
break;
}
case 50:// TODO
{
debug(0, "o2_startSequence");
break;
}
case 51:// TODO
{
debug(0, "o2_endSequence");
break;
}
case 52:// TODO
{
debug(0, "o2_sequenceVolumeStuff");
break;
}
case 53:// TODO
{
debug(0, "o2_playSound1(%d, %d, %d, %d)", arg16(9), arg16(7), arg16(5), arg16(3));
break;
}
case 54:// TODO
{
debug(0, "o2_playSound2(%d, %d, %d)", arg16(7), arg16(5), arg16(3));
break;
}
case 55:// TODO
debug(0, "o2_clearScreen()");
break;
case 56:// ok
{
// NOP
break;
}
case 57:// TODO
{
debug(0, "o2_handleInput");
int16 varOfs = arg16(3);
localWrite16(varOfs, 0);
//_vm->_input->update();
break;
}
case 58:// TODO
{
debug(0, "o2_runOptionsScreen(%d, %d)", arg16(5), arg16(3));
break;
}
case 59:// TODO
{
debug(0, "o2_precacheResources(%04X)", arg16(3));
break;
}
case 60:// TODO
{
debug(0, "o2_precacheSounds1(%04X)", arg16(3));
// CHECKME
_vm->_screen->clearSprites();
break;
}
case 61:// TODO
{
debug(0, "o2_deleteAllPbfFilesByExternalArray()");
break;
}
case 63:// ok
{
_regs.sp = _savedSp;
break;
}
case 64:// ok
{
_savedSp = _regs.sp;
break;
}
case 65:// TODO
{
debug(0, "o2_playMovie(%d, %d)", arg16(3), arg16(5));
break;
}
case 66:
// NOP
break;
default:
error("Invalid kernel opcode %d", kernelOpcode);
}
}
VarType ScriptInterpreter::getGameVarType(uint variable) {
switch (variable) {
case 0: return vtByte;
case 1: return vtWord;
case 2: return vtWord;
case 3: return vtByte;
case 4: return vtWord;
case 5: return vtWord;
case 6: return vtWord;
case 7: return vtWord;
case 8: return vtWord;
case 9: return vtWord;
case 10: return vtWord;
case 11: return vtWord;
case 12: return vtByte;
case 13: return vtWord;
case 14: return vtWord;
case 15: return vtWord;
case 16: return vtWord;
case 17: return vtWord;
case 18: return vtWord;
case 19: return vtWord;
case 20: return vtWord;
case 21: return vtWord;
default:
error("Invalid game variable");
}
}
const char *getVarName(uint variable) {
switch (variable) {
case 0: return "mouseDisabled";
case 1: return "mouseY";
case 2: return "mouseX";
case 3: return "mouseButton";
case 4: return "verbLineY";
case 5: return "verbLineX";
case 6: return "verbLineWidth";
case 7: return "verbLineCount";
case 8: return "verbLineNum";
case 9: return "talkTextItemNum";
case 10: return "talkTextY";
case 11: return "talkTextX";
case 12: return "talkTextFontColor";
case 13: return "cameraY";
case 14: return "cameraX";
case 15: return "walkSpeedY";
case 16: return "walkSpeedX";
case 17: return "flag01";
case 18: return "sceneResIndex";
case 19: return "guiHeight";
case 20: return "sceneHeight";
case 21: return "sceneWidth";
}
return "(invalid)";
}
int16 ScriptInterpreter::getGameVar(uint variable) {
debug(0, "ScriptInterpreter::getGameVar(%d{%s})", variable, getVarName(variable));
int16 value = 0;
switch (variable) {
case 0:
value = _vm->_mouseDisabled;
break;
case 1:
value = _vm->_mouseY;
break;
case 2:
value = _vm->_mouseX;
break;
case 3:
value = _vm->_mouseButton;
break;
case 4:
value = _vm->_screen->_verbLineY;
break;
case 5:
value = _vm->_screen->_verbLineX;
break;
case 6:
value = _vm->_screen->_verbLineWidth;
break;
case 7:
value = _vm->_screen->_verbLineCount;
break;
case 8:
value = _vm->_screen->_verbLineNum;
break;
case 9:
value = _vm->_screen->_talkTextItemNum;
break;
case 10:
value = _vm->_screen->_talkTextY;
break;
case 11:
value = _vm->_screen->_talkTextX;
break;
case 12:
value = _vm->_screen->_talkTextFontColor;
break;
case 13:
value = _vm->_cameraY;
break;
case 14:
value = _vm->_cameraX;
break;
case 15:
value = _vm->_walkSpeedY;
break;
case 16:
value = _vm->_walkSpeedX;
break;
case 17:
value = _vm->_flag01;
break;
case 18:
value = _vm->_sceneResIndex;
break;
case 19:
value = _vm->_guiHeight;
break;
case 20:
value = _vm->_sceneHeight;
break;
case 21:
value = _vm->_sceneWidth;
break;
default:
warning("Getting unimplemented game variable %s (%d)", getVarName(variable), variable);
break;
}
return value;
}
void ScriptInterpreter::setGameVar(uint variable, int16 value) {
debug(0, "ScriptInterpreter::setGameVar(%d{%s}, %d)", variable, getVarName(variable), value);
switch (variable) {
case 0:
_vm->_mouseDisabled = value;
_vm->_system->showMouse(value == 0);
break;
case 3:
_vm->_mouseButton = value;
break;
case 4:
_vm->_screen->_verbLineY = value;
break;
case 5:
_vm->_screen->_verbLineX = value;
break;
case 6:
_vm->_screen->_verbLineWidth = value;
break;
case 7:
_vm->_screen->_verbLineCount = value;
break;
case 8:
_vm->_screen->_verbLineNum = value;
break;
case 9:
_vm->_screen->_talkTextItemNum = value;
break;
case 10:
_vm->_screen->_talkTextY = value;
break;
case 11:
_vm->_screen->_talkTextX = value;
break;
case 12:
_vm->_screen->_talkTextFontColor = value;
break;
case 13:
_vm->_cameraY = value;
break;
case 14:
_vm->_cameraX = value;
break;
case 15:
_vm->_walkSpeedY = value;
break;
case 16:
_vm->_walkSpeedX = value;
break;
case 17:
_vm->_flag01 = value != 0;
break;
case 18:
_vm->_sceneResIndex = value;
break;
case 19:
_vm->_guiHeight = value;
break;
case 20:
_vm->_sceneHeight = value;
break;
case 21:
_vm->_sceneWidth = value;
break;
case 1:
case 2:
default:
warning("Setting unimplemented game variable %s (%d) to %d", getVarName(variable), variable, value);
break;
}
}
byte ScriptInterpreter::arg8(int16 offset) {
return _subCode[offset];
}
int16 ScriptInterpreter::arg16(int16 offset) {
return READ_LE_UINT16(&_subCode[offset]);
}
int32 ScriptInterpreter::arg32(int16 offset) {
return READ_LE_UINT32(&_subCode[offset]);
}
void ScriptInterpreter::pushByte(byte value) {
_stack[_regs.sp] = value;
_regs.sp--;
}
byte ScriptInterpreter::popByte() {
_regs.sp++;
return _stack[_regs.sp];
}
void ScriptInterpreter::pushInt16(int16 value) {
WRITE_LE_UINT16(_stack + _regs.sp, value);
_regs.sp -= 2;
}
int16 ScriptInterpreter::popInt16() {
_regs.sp += 2;
return READ_LE_UINT16(_stack + _regs.sp);
}
void ScriptInterpreter::pushInt32(int32 value) {
WRITE_LE_UINT32(_stack + _regs.sp, value);
_regs.sp -= 4;
}
int32 ScriptInterpreter::popInt32() {
_regs.sp += 4;
return READ_LE_UINT32(_stack + _regs.sp);
}
void ScriptInterpreter::localWrite8(int16 offset, byte value) {
debug(1, "localWrite8(%d, %d)", offset, value);
_localData[offset] = value;
}
byte ScriptInterpreter::localRead8(int16 offset) {
debug(1, "localRead8(%d) -> %d", offset, _localData[offset]);
return _localData[offset];
}
void ScriptInterpreter::localWrite16(int16 offset, int16 value) {
debug(1, "localWrite16(%d, %d)", offset, value);
WRITE_LE_UINT16(&_localData[offset], value);
}
int16 ScriptInterpreter::localRead16(int16 offset) {
debug(1, "localRead16(%d) -> %d", offset, (int16)READ_LE_UINT16(&_localData[offset]));
return (int16)READ_LE_UINT16(&_localData[offset]);
}
void ScriptInterpreter::localWrite32(int16 offset, int32 value) {
debug(1, "localWrite32(%d, %d)", offset, value);
WRITE_LE_UINT32(&_localData[offset], value);
}
int32 ScriptInterpreter::localRead32(int16 offset) {
debug(1, "localRead32(%d) -> %d", offset, (int32)READ_LE_UINT32(&_localData[offset]));
return (int32)READ_LE_UINT32(&_localData[offset]);
}
byte *ScriptInterpreter::localPtr(int16 offset) {
debug(1, "localPtr(%d)", offset);
return &_localData[offset];
}
void ScriptInterpreter::saveState(Common::WriteStream *out) {
// Save registers
out->writeUint16LE(_regs.reg0);
out->writeUint16LE(_regs.reg1);
out->writeUint16LE(_regs.reg2);
out->writeUint16LE(_regs.reg3);
out->writeUint16LE(_regs.reg4);
out->writeUint16LE(_regs.reg5);
out->writeUint16LE(_regs.reg6);
out->writeUint16LE(_regs.sp);
out->writeUint16LE(_regs.reg8);
// Save slots
for (int slot = 0; slot < kMaxScriptSlots; slot++) {
out->writeUint32LE(_slots[slot].size);
out->writeUint16LE(_slots[slot].resIndex);
if (_slots[slot].size > 0)
out->write(_slots[slot].data, _slots[slot].size);
}
// Save stack
out->write(_stack, kScriptStackSize);
out->writeUint16LE(_savedSp);
// Save IP
out->writeUint16LE((int16)(_code - getSlotData(_regs.reg4)));
}
void ScriptInterpreter::loadState(Common::ReadStream *in) {
// Load registers
_regs.reg0 = in->readUint16LE();
_regs.reg1 = in->readUint16LE();
_regs.reg2 = in->readUint16LE();
_regs.reg3 = in->readUint16LE();
_regs.reg4 = in->readUint16LE();
_regs.reg5 = in->readUint16LE();
_regs.reg6 = in->readUint16LE();
_regs.sp = in->readUint16LE();
_regs.reg8 = in->readUint16LE();
// Load slots
for (int slot = 0; slot < kMaxScriptSlots; slot++) {
_slots[slot].size = in->readUint32LE();
_slots[slot].resIndex = in->readUint16LE();
_slots[slot].data = NULL;
if (_slots[slot].size > 0) {
_slots[slot].data = new byte[_slots[slot].size];
in->read(_slots[slot].data, _slots[slot].size);
}
}
// Load stack
in->read(_stack, kScriptStackSize);
_savedSp = in->readUint16LE();
// Load IP
_code = getSlotData(_regs.reg4) + in->readUint16LE();
}
} // End of namespace Toltecs
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