screen.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 MADS_SCREEN_H
#define MADS_SCREEN_H

#include "common/scummsys.h"
#include "common/array.h"
#include "mads/core/msurface.h"
#include "mads/core/action.h"

namespace MADS {

#define MADS_SCREEN_WIDTH 320
#define MADS_SCREEN_HEIGHT 200

enum ScreenMode {
    SCREENMODE_VGA = 19
};

enum ScreenTransition {
    kTransitionNone = 0,
    kTransitionFadeIn, kTransitionFadeOutIn,
    kTransitionBoxInBottomLeft, kTransitionBoxInBottomRight,
    kTransitionBoxInTopLeft, kTransitionBoxInTopRight,
    kTransitionPanLeftToRight, kTransitionPanRightToLeft,
    kTransitionCircleIn1, kTransitionCircleIn2,
    kTransitionCircleIn3, kTransitionCircleIn4,
    kVertTransition1, kVertTransition2, kVertTransition3,
    kVertTransition4, kVertTransition5, kVertTransition6,
    kVertTransition7, kNullPaletteCopy
};

enum InputMode {
    kInputBuildingSentences = 0,        // Normal sentence building
    kInputConversation = 1,         // Conversation mode
    kInputLimitedSentences = 2      // Use only scene hotspots
};

enum ThroughBlack {
    THROUGH_BLACK1 = 1,
    THROUGH_BLACK2 = 2
};

class RexNebularEngine;
class SpriteSlot;
class TextDisplay;
class UISlot;

class DirtyArea {
private:
    static RexNebularEngine *_vm;
    friend class DirtyAreas;
public:
    Common::Rect _bounds;
    bool _textActive;
    bool _active;
    DirtyArea *_mergedArea;

    DirtyArea();

    void setArea(int width, int height, int maxWidth, int maxHeight);

    void setSpriteSlot(const SpriteSlot *spriteSlot);

    void setTextDisplay(const TextDisplay *textDisplay);

    void setUISlot(const UISlot *slot);
};

class DirtyAreas : public Common::Array<DirtyArea> {
//private:
//  RexNebularEngine *_vm;
public:
    DirtyAreas(RexNebularEngine *vm);

    void merge(int startIndex, int count);

    bool intersects(int idx1, int idx2);
    void mergeAreas(int idx1, int idx2);

    void copy(BaseSurface *srcSurface, BaseSurface *destSurface, const Common::Point &posAdjust);

    void copyToScreen();

    void reset();
};

class ScreenObject {
public:
    bool _active;
    Common::Rect _bounds;
    ScrCategory _category;
    int _descId;
    int _mode;

    ScreenObject();
};

class ScreenObjects : public Common::Array<ScreenObject> {
private:
    RexNebularEngine *_vm;
    int _objectY;

    int scanBackwards(const Common::Point &pt, int layer);
public:
    InputMode _inputMode;
    int _v7FED6;
    int _v8332A;
    int _forceRescan;
    int _selectedObject;
    ScrCategory _category;
    bool _released;
    int _uiCount;
    bool _eventFlag;
    uint32 _baseTime;
    int _spotId;

    /*
    * Constructor
    */
    ScreenObjects(RexNebularEngine *vm);

    ScreenObject *add(const Common::Rect &bounds, ScreenMode mode, ScrCategory category, int descId);

    void check(bool scanFlag);

    int scan(const Common::Point &pt, int layer);

    void elementHighlighted();

    ScreenObject &operator[](int idx) {
        assert(idx > 0);
        return Common::Array<ScreenObject>::operator[](idx - 1);
    }

    void setActive(ScrCategory category, int descId, bool active);

    void synchronize(Common::Serializer &s);
};

class Screen : public BaseSurface {
private:
    uint16 _random;
    MSurface _rawSurface;

    void panTransition(MSurface &newScreen, byte *palData, int entrySide,
        const Common::Point &srcPos, const Common::Point &destPos,
        ThroughBlack throughBlack, bool setPalette, int numTicks);

    void swapForeground(byte newPalette[PALETTE_SIZE], byte *paletteMap);

    void swapPalette(const byte palData[PALETTE_SIZE], byte swapTable[PALETTE_COUNT], bool foreground);
public:
    int _shakeCountdown;
public:
    Screen();

    ~Screen() override {}

    void update() override;

    void transition(ScreenTransition transitionType, bool surfaceFlag);

    void setClipBounds(const Common::Rect &r);

    void resetClipBounds();

    const Common::Rect getClipBounds() const {
        const Common::Point pt = getOffsetFromOwner();
        return Common::Rect(pt.x, pt.y, pt.x + this->w, pt.y + this->h);
    }
};

} // namespace MADS

#endif /* MADS_SCREEN_H */