Camera.h

/*
 * Copyright 2010-2014 OpenXcom Developers.
 *
 * This file is part of OpenXcom.
 *
 * OpenXcom 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.
 *
 * OpenXcom 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 OpenXcom.  If not, see <http://www.gnu.org/licenses/>.
 */
#ifndef OPENXCOM_CAMERA_H
#define OPENXCOM_CAMERA_H

#include "Position.h"

namespace OpenXcom
{

class Action;
class State;
class Timer;
class Map;

class Camera
{
private:
    Timer *_scrollMouseTimer, *_scrollKeyTimer;
    int _spriteWidth, _spriteHeight;
    int _mapsize_x, _mapsize_y, _mapsize_z;
    int _screenWidth, _screenHeight;
    Position _mapOffset, _center;
    int _scrollMouseX, _scrollMouseY, _scrollKeyX, _scrollKeyY;
    bool _scrollTrigger;
    int _visibleMapHeight;
    bool _showAllLayers;
    void minMaxInt(int *value, const int minValue, const int maxValue) const;
    Map *_map;
public:
    static const int SCROLL_BORDER = 5;
    static const int SCROLL_DIAGONAL_EDGE = 60;
    Camera(int spriteWidth, int spriteHeight, int mapsize_x, int mapsize_y, int mapsize_z, Map *map, int visibleMapHeight);
    ~Camera();
    void setScrollTimer(Timer *mouse, Timer *key);
    void mousePress(Action *action, State *state);
    void mouseRelease(Action *action, State *state);
    void mouseOver(Action *action, State *state);
    void keyboardPress(Action *action, State *state);
    void keyboardRelease(Action *action, State *state);
    void scrollMouse();
    void scrollKey();
    void scrollXY(int x, int y, bool redraw);
    void jumpXY(int x, int y);
    void up();
    void down();
    void setViewLevel(int viewlevel);
    void convertMapToScreen(const Position &mapPos, Position *screenPos) const;
    void convertVoxelToScreen(const Position &voxelPos, Position *screenPos) const;
    void convertScreenToMap(int screenX, int screenY, int *mapX, int *mapY) const;
    void centerOnPosition(const Position &pos, bool redraw = true);
    Position getCenterPosition();
    int getViewLevel() const;
    int getMapSizeX() const;
    int getMapSizeY() const;
    Position getMapOffset();
    void setMapOffset(Position pos);
    int toggleShowAllLayers();
    bool getShowAllLayers() const;
    bool isOnScreen(const Position &mapPos, const bool unitWalking) const;
    void resize();
    void stopMouseScrolling();
};
}
#endif