commontypes.h

/* 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 3 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, see <http://www.gnu.org/licenses/>.
 *
 */

#ifndef NANCY_COMMONYPES_H
#define NANCY_COMMONYPES_H

#include "common/rect.h"
#include "common/array.h"
#include "common/language.h"
#include "common/str.h"
#include "math/vector3d.h"

namespace Common {
class SeekableReadStream;
}

namespace Nancy {

class NancyEngine;

// The original engine used a large amount of #defines for numerical constants,
// which can be found listed inside the gameflow.h file shipping with many of
// the titles (the Russian variant of nancy1 has it as a separate file, while
// nancy2 and above embed it within the ciftree).
//
// Other, more specific constants are declared within their related classes,
// so as not to litter the namespace

static const int8 kFlagNoLabel                      = -1;
static const int8 kEvNoEvent                        = -1;
static const int8 kFrNoFrame                        = -1;
static const uint16 kNoScene                        = 9999;

// Inventory items use types
static const byte kInvItemUseThenLose               = 0;
static const byte kInvItemKeepAlways                = 1;
static const byte kInvItemReturn                    = 2;
static const byte kInvItemNewSceneView              = 3;

// Inventory item sound override commands
static const byte kInvSoundOverrideCommandNoSound   = 0;
static const byte kInvSoundOverrideCommandTurnOff   = 1;
static const byte kInvSoundOverrideCommandNewSound  = 2;
static const byte kInvSoundOverrideCommandICant     = 3;

// Dependency types
static const byte kFlagEvent                        = 1;
static const byte kFlagInventory                    = 2;
static const byte kFlagCursor                       = 3;

// Scene panning
static const byte kPanNone                          = 0;
static const byte kPan360                           = 1;
static const byte kPanLeftRight                     = 2;

// Scene sound flags
static const byte kContinueSceneSound               = 1;
static const byte kLoadSceneSound                   = 0;

// Scene rotation special values
static const uint16 kInvertedNode                   = 77;
static const uint16 kNoAutoScroll                   = 333;

// Clock bump types
static const byte kAbsoluteClockBump                = 1;
static const byte kRelativeClockBump                = 2;

// Time of day
static const byte kPlayerDay                        = 0;
static const byte kPlayerNight                      = 1;
static const byte kPlayerDuskDawn                   = 2;

// Video
static const byte kSmallVideoFormat                 = 1;
static const byte kLargeVideoFormat                 = 2;

static const byte kVideoPlaytypeAVF                 = 0;
static const byte kVideoPlaytypeBink                = 1;

// Overlay
static const byte kPlayOverlayPlain                 = 1;
static const byte kPlayOverlayTransparent           = 2;

static const byte kPlayOverlaySceneChange           = 1;
static const byte kPlayOverlayNoSceneChange         = 2;

static const byte kPlayOverlayStatic                = 1;
static const byte kPlayOverlayAnimated              = 2;

static const byte kPlayOverlayOnce                  = 1;
static const byte kPlayOverlayLoop                  = 2;

static const byte kPlayOverlayForward               = 1;
static const byte kPlayOverlayReverse               = 2;

static const byte kPlayOverlayWithHotspot           = 1;
static const byte kPlayOverlayNoHotspot             = 2;

// Table access
static const byte kNoChangeTableValue               = 0;
static const byte kIncrementTableValue              = 1;
static const byte kDecrementTableValue              = 2;
static const uint16 kNoTableIndex                   = 99;
static const int16 kNoTableValue                    = 9999;

// Autotext ordering info
static const uint16 kListLIFO                       = 0;
static const uint16 kListFIFO                       = 1;

// 3D sound rotation
static const byte kRotateAroundX                    = 0;
static const byte kRotateAroundY                    = 1;
static const byte kRotateAroundZ                    = 2;

enum MovementDirection : byte { kUp = 1, kDown = 2, kLeft = 4, kRight = 8, kMoveFast = 16 };

// Separate namespace to remove possible clashes
namespace NancyState {
enum NancyState {
    // Original engine states
    kBoot, kLogo, kCredits, kMap,
    kMainMenu, kLoadSave, kSetup,
    kHelp, kScene, kSaveDialog,

    // Not real states
    kNone,
    kQuit,
    kPause, // only used when the GMM is on screen
};
}

// Describes a scene transition
struct SceneChangeDescription {
    uint16 sceneID = kNoScene;
    uint16 frameID = 0;
    uint16 verticalOffset = 0;
    uint16 continueSceneSound = kLoadSceneSound;

    int8 paletteID = -1; // TVD only

    Math::Vector3d listenerFrontVector = Math::Vector3d(0, 0, 1);
    uint16 frontVectorFrameID = 0;

    void readData(Common::SeekableReadStream &stream, bool longFormat = false);
};

// Describes a single flag change or comparison
struct FlagDescription {
    int16 label = -1;
    byte flag = 0;
};

struct SceneChangeWithFlag {
    SceneChangeDescription _sceneChange;
    FlagDescription _flag;

    void readData(Common::SeekableReadStream &stream, bool reverseFormat = false);
    void execute();
};

// Describes a hotspot
struct HotspotDescription {
    uint16 frameID = 0;
    Common::Rect coords;

    void readData(Common::SeekableReadStream &stream);
};

// Describes a blit operation, dependent on a background frame
struct FrameBlitDescription {
    uint16 frameID = 0; // Frame ID of the Scene background
    uint16 staticRectID = 0; // Used in Overlay
    uint hasHotspot = kPlayOverlayNoHotspot;
    Common::Rect src;
    Common::Rect dest;

    void readData(Common::SeekableReadStream &stream, bool longFormat = false);
};

// Describes 10 event flag changes to be executed when an action is triggered
struct MultiEventFlagDescription {
    FlagDescription descs[10];

    void readData(Common::SeekableReadStream &stream);
    void execute();
};

struct SecondaryVideoDescription {
    int16 frameID = kFrNoFrame;
    Common::Rect srcRect;
    Common::Rect destRect;
    // 2 unknown/empty rects

    void readData(Common::SeekableReadStream &stream);
};

// Describes set of effects that can be applied to sounds.
// Defaults are set according to the values used by PlaySoundTerse
struct SoundEffectDescription {
    uint32 minTimeDelay = 500;
    uint32 maxTimeDelay = 2000;

    int32 randomMoveMinX = 0;
    int32 randomMoveMaxX = 0;
    int32 randomMoveMinY = 0;
    int32 randomMoveMaxY = 0;
    int32 randomMoveMinZ = 0;
    int32 randomMoveMaxZ = 0;

    int32 fixedPosX = 0;
    int32 fixedPosY = 0;
    int32 fixedPosZ = 0;

    uint32 moveStepTime = 1000;
    int32 numMoveSteps = 10;

    int32 linearMoveStartX = 0;
    int32 linearMoveEndX = 0;
    int32 linearMoveStartY = 0;
    int32 linearMoveEndY = 0;
    int32 linearMoveStartZ = 0;
    int32 linearMoveEndZ = 0;

    int32 rotateMoveStartX = 0;
    int32 rotateMoveStartY = 0;
    int32 rotateMoveStartZ = 0;
    byte rotateMoveAxis = kRotateAroundY;

    uint32 minDistance = 0;
    uint32 maxDistance = 0;

    void readData(Common::SeekableReadStream &stream);
};

// Descrbes a single sound. Combines four different structs found in the data in one
struct SoundDescription {
    Common::String name = "NO SOUND";
    uint16 channelID = 0;
    uint16 playCommands = 1;
    uint16 numLoops = 1;
    uint16 volume = 50;
    uint16 panAnchorFrame = 0;
    uint32 samplesPerSec = 0;
    bool isPanning = false;

    void readNormal(Common::SeekableReadStream &stream);
    void readDIGI(Common::SeekableReadStream &stream);
    void readMenu(Common::SeekableReadStream &stream);
    void readScene(Common::SeekableReadStream &stream);
    void readTerse(Common::SeekableReadStream &stream);
};

// Structs inside nancy.dat, which contains all the data that was
// originally stored inside the executable

enum class StaticDataConditionType { kEvent = 0, kInventory = 1, kDifficulty = 2 };
struct StaticDataFlag { byte type; int16 label; byte flag; };

struct ConditionalDialogue {
    byte textID;
    uint16 sceneID;
    Common::String soundID;
    Common::Array<StaticDataFlag> conditions;

    void readData(Common::SeekableReadStream &stream);
};

struct GoodbyeSceneChange {
    Common::Array<uint16> sceneIDs;
    Common::Array<StaticDataFlag> conditions;
    StaticDataFlag flagToSet;

    void readData(Common::SeekableReadStream &stream);
};

struct Goodbye {
    Common::String soundID;
    Common::Array<GoodbyeSceneChange> sceneChanges;

    void readData(Common::SeekableReadStream &stream);
};

struct Hint {
    byte textID;
    int16 hintWeight;
    SceneChangeDescription sceneChange;
    Common::String soundIDs[3];
    Common::Array<StaticDataFlag> conditions;

    void readData(Common::SeekableReadStream &stream);
};

struct SoundChannelInfo {
    byte numChannels;
    byte numSceneSpecificChannels;
    Common::Array<byte> speechChannels;
    Common::Array<byte> musicChannels;
    Common::Array<byte> sfxChannels;

    void readData(Common::SeekableReadStream &stream);
};

struct StaticData {
    // Default values are for nancy1, provided for debugging purposes
    uint16 numItems = 11;
    uint16 numEventFlags = 168;
    Common::Array<uint16> mapAccessSceneIDs;
    Common::Array<uint16> genericEventFlags;
    uint16 numCursorTypes = 4;
    uint32 logoEndAfter = 7000;
    int16 wonGameFlagID = -1;

    // Data for sound channels
    SoundChannelInfo soundChannelInfo;

    // In-game strings and related logic
    Common::Array<Common::Array<ConditionalDialogue>> conditionalDialogue;
    Common::Array<Goodbye> goodbyes;
    Common::Array<Common::Array<Hint>> hints;

    Common::Array<Common::String> conditionalDialogueTexts;
    Common::Array<Common::String> goodbyeTexts;
    Common::Array<Common::String> hintTexts;
    Common::String ringingText;
    Common::String emptySaveText;

    // Debug strings
    Common::Array<Common::String> eventFlagNames;

    void readData(Common::SeekableReadStream &stream, Common::Language language, uint32 endPos, int8 majorVersion, int8 minorVersion);
};

} // End of namespace Nancy

#endif // NANCY_COMMONYPES_H