bool _fullscreen;

byte _support8bpp;

CursorVars _cursor;

bool _ctrl_pressed;   ///< Is Ctrl pressed?

bool _shift_pressed;  ///< Is Shift pressed?

uint16 _game_speed = 100; ///< Current game-speed; 100 is 1x, 0 is infinite.

bool _left_button_down;     ///< Is left mouse button pressed?

bool _left_button_clicked;  ///< Is left mouse button clicked?

bool _right_button_down;    ///< Is right mouse button pressed?

bool _right_button_clicked; ///< Is right mouse button clicked?

DrawPixelInfo _screen;

bool _screen_disable_anim = false;   ///< Disable palette animation (important for 32bpp-anim blitter during giant screenshot)

GameMode _game_mode;

SwitchMode _switch_mode;  ///< The next mainloop command.

PauseMode _pause_mode;

Palette _cur_palette;

static byte _stringwidth_table[FS_END][224]; ///< Cache containing width of often used characters. @see GetCharacterWidth()

DrawPixelInfo *_cur_dpi;

byte _colour_gradient[COLOUR_END][8];

static void GfxMainBlitterViewport(const Sprite *sprite, int x, int y, BlitterMode mode, const SubSprite *sub = nullptr, SpriteID sprite_id = SPR_CURSOR_MOUSE);

static void GfxMainBlitter(const Sprite *sprite, int x, int y, BlitterMode mode, const SubSprite *sub = nullptr, SpriteID sprite_id = SPR_CURSOR_MOUSE, ZoomLevel zoom = ZOOM_LVL_NORMAL);

/*

 * This file is part of OpenTTD.

 * OpenTTD 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, version 2.

 * OpenTTD 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 OpenTTD. If not, see <http://www.gnu.org/licenses/>.

 */

/** @file openttd.h Some generic types. */

#ifndef OPENTTD_H

#define OPENTTD_H

#include "core/enum_type.hpp"

/** Mode which defines the state of the game. */

enum GameMode {

	GM_MENU,

	GM_NORMAL,

	GM_EDITOR,

	GM_BOOTSTRAP

};

/** Mode which defines what mode we're switching to. */

enum SwitchMode {

enum DisplayOptions {

	DO_SHOW_TOWN_NAMES     = 0, ///< Display town names.

	DO_SHOW_STATION_NAMES  = 1, ///< Display station names.

	DO_SHOW_SIGNS          = 2, ///< Display signs.

	DO_FULL_ANIMATION      = 3, ///< Perform palette animation.

	DO_FULL_DETAIL         = 5, ///< Also draw details of track and roads.

	DO_SHOW_WAYPOINT_NAMES = 6, ///< Display waypoint names.

	DO_SHOW_COMPETITOR_SIGNS = 7, ///< Display signs, station names and waypoint names of opponent companies. Buoys and oilrig-stations are always shown, even if this option is turned off.

};

extern GameMode _game_mode;

extern SwitchMode _switch_mode;

extern bool _save_config;

/** Modes of pausing we've got */

enum PauseMode : byte {

	PM_UNPAUSED              = 0,      ///< A normal unpaused game

	PM_PAUSED_NORMAL         = 1 << 0, ///< A game normally paused

	PM_PAUSED_SAVELOAD       = 1 << 1, ///< A game paused for saving/loading

	PM_PAUSED_JOIN           = 1 << 2, ///< A game paused for 'pause_on_join'

	PM_PAUSED_ERROR          = 1 << 3, ///< A game paused because a (critical) error

	PM_PAUSED_ACTIVE_CLIENTS = 1 << 4, ///< A game paused for 'min_active_clients'

	PM_PAUSED_GAME_SCRIPT    = 1 << 5, ///< A game paused by a game script

	PM_PAUSED_LINK_GRAPH     = 1 << 6, ///< A game paused due to the link graph schedule lagging