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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.
*
*/
#ifndef SCI_INCLUDE_FEATURES_H
#define SCI_INCLUDE_FEATURES_H
#include "sci/resource.h"
#include "sci/engine/seg_manager.h"
namespace Sci {
enum MoveCountType {
kMoveCountUninitialized,
kIgnoreMoveCount,
kIncrementMoveCount
};
enum PseudoMouseAbilityType {
kPseudoMouseAbilityUninitialized,
kPseudoMouseAbilityFalse,
kPseudoMouseAbilityTrue
};
class GameFeatures {
public:
GameFeatures(SegManager *segMan, Kernel *kernel);
~GameFeatures() {}
/**
* Autodetects the DoSound type
* @return DoSound type, SCI_VERSION_0_EARLY / SCI_VERSION_0_LATE /
* SCI_VERSION_1_EARLY / SCI_VERSION_1_LATE
*/
SciVersion detectDoSoundType();
/**
* Autodetects the SetCursor type
* @return SetCursor type, SCI_VERSION_0_EARLY / SCI_VERSION_1_1
*/
SciVersion detectSetCursorType();
/**
* Autodetects the Lofs type
* @return Lofs type, SCI_VERSION_0_EARLY / SCI_VERSION_1_MIDDLE / SCI_VERSION_1_1 / SCI_VERSION_3
*/
SciVersion detectLofsType();
/**
* Autodetects the graphics functions used
* @return Graphics functions type, SCI_VERSION_0_EARLY / SCI_VERSION_0_LATE
*/
SciVersion detectGfxFunctionsType();
/**
* Autodetects the message function used
* @return Message function type, SCI_VERSION_1_LATE / SCI_VERSION_1_1
*/
SciVersion detectMessageFunctionType();
#ifdef ENABLE_SCI32
/**
* Autodetects the kernel functions used in SCI2.1
* @return Graphics functions type, SCI_VERSION_2 / SCI_VERSION_2_1
*/
SciVersion detectSci21KernelType();
inline bool usesModifiedAudioAttenuation() const {
switch (g_sci->getGameId()) {
// Assuming MGDX uses modified attenuation since SQ6 does and it was
// released earlier, but not verified (Phar Lap Windows-only release)
case GID_MOTHERGOOSEHIRES:
case GID_PQ4:
case GID_SQ6:
return true;
case GID_KQ7:
case GID_QFG4:
// (1) KQ7 1.51 (SCI2.1early) uses the non-standard attenuation, but
// 2.00b (SCI2.1mid) does not
// (2) QFG4 CD is SCI2.1early; QFG4 floppy is SCI2 and does not use
// the SCI2.1 audio system
return getSciVersion() == SCI_VERSION_2_1_EARLY;
default:
return false;
}
}
inline bool hasTransparentPicturePlanes() const {
const SciGameId &gid = g_sci->getGameId();
// NOTE: MGDX is assumed to not have transparent picture planes since it
// was released before SQ6, but this has not been verified since it
// cannot be disassembled at the moment (Phar Lap Windows-only release)
return getSciVersion() >= SCI_VERSION_2_1_MIDDLE &&
gid != GID_SQ6 &&
gid != GID_MOTHERGOOSEHIRES;
}
inline bool hasNewPaletteCode() const {
return getSciVersion() >= SCI_VERSION_2_1_MIDDLE || g_sci->getGameId() == GID_KQ7;
}
inline bool VMDOpenStopsAudio() const {
// Of the games that use VMDs:
// Yes: Phant1, Shivers, Torin
// No: SQ6
// TODO: Optional extra flag to kPlayVMD which defaults to Yes: PQ:SWAT
// TODO: SCI3, GK2 (GK2's VMD code is closer to SCI3 than SCI21)
return getSciVersion() == SCI_VERSION_2_1_MIDDLE &&
g_sci->getGameId() != GID_SQ6 &&
g_sci->getGameId() != GID_GK2;
}
#endif
/**
* Applies to all versions before 0.000.502
* Old SCI versions used to interpret the third DrawPic() parameter inversely,
* with the opposite default value (obviously).
* Also, they used 15 priority zones from 42 to 200 instead of 14 priority
* zones from 42 to 190.
*/
bool usesOldGfxFunctions() { return detectGfxFunctionsType() == SCI_VERSION_0_EARLY; }
/**
* Autodetects the Bresenham routine used in the actor movement functions
* @return Move count type, kIncrementMoveCnt / kIgnoreMoveCnt
*/
MoveCountType detectMoveCountType();
bool handleMoveCount() { return detectMoveCountType() == kIncrementMoveCount; }
bool usesCdTrack() { return _usesCdTrack; }
/**
* Checks if the alternative Windows GM MIDI soundtrack should be used. Such
* soundtracks are available for the Windows CD versions of EcoQuest, Jones,
* KQ5 and SQ4.
*/
bool useAltWinGMSound();
/**
* Forces DOS soundtracks in Windows CD versions when the user hasn't
* selected a MIDI output device
*/
void forceDOSTracks() { _forceDOSTracks = true; }
/**
* Autodetects, if Pseudo Mouse ability is enabled (different behavior in keyboard driver)
* @return kPseudoMouseAbilityTrue or kPseudoMouseAbilityFalse
*/
PseudoMouseAbilityType detectPseudoMouseAbility();
private:
reg_t getDetectionAddr(const Common::String &objName, Selector slc, int methodNum = -1);
bool autoDetectLofsType(Common::String gameSuperClassName, int methodNum);
bool autoDetectGfxFunctionsType(int methodNum = -1);
bool autoDetectSoundType();
bool autoDetectMoveCountType();
#ifdef ENABLE_SCI32
bool autoDetectSci21KernelType();
#endif
SciVersion _doSoundType, _setCursorType, _lofsType, _gfxFunctionsType, _messageFunctionType;
#ifdef ENABLE_SCI32
SciVersion _sci21KernelType;
#endif
MoveCountType _moveCountType;
bool _usesCdTrack;
bool _forceDOSTracks;
PseudoMouseAbilityType _pseudoMouseAbility;
SegManager *_segMan;
Kernel *_kernel;
};
} // End of namespace Sci
#endif // SCI_INCLUDE_ENGINE_H
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