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Location: cpp/openttd-patchpack/source/src/tile_type.h - annotation
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Codechange: [OSX] Only keep a total dirty rect for drawing.
When drawing an 8bpp screen buffer, palette resolving was done for each
dirty rectangle. In areas with high activity, this would mean a pixel might
have been resolved multiple times. Also, if too many individual updates
were queued, the whole screen would be refreshed, even if unnecessary.
All other drivers only keep one overall dirty rect, so do it here as well.
When drawing an 8bpp screen buffer, palette resolving was done for each
dirty rectangle. In areas with high activity, this would mean a pixel might
have been resolved multiple times. Also, if too many individual updates
were queued, the whole screen would be refreshed, even if unnecessary.
All other drivers only keep one overall dirty rect, so do it here as well.
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* 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 tile_type.h Types related to tiles. */
#ifndef TILE_TYPE_H
#define TILE_TYPE_H
static const uint TILE_SIZE = 16; ///< Tile size in world coordinates.
static const uint TILE_UNIT_MASK = TILE_SIZE - 1; ///< For masking in/out the inner-tile world coordinate units.
static const uint TILE_PIXELS = 32; ///< Pixel distance between tile columns/rows in #ZOOM_LVL_BASE.
static const uint TILE_HEIGHT = 8; ///< Height of a height level in world coordinate AND in pixels in #ZOOM_LVL_BASE.
static const uint MAX_BUILDING_PIXELS = 200; ///< Maximum height of a building in pixels in #ZOOM_LVL_BASE. (Also applies to "bridge buildings" on the bridge floor.)
static const int MAX_VEHICLE_PIXEL_X = 192; ///< Maximum width of a vehicle in pixels in #ZOOM_LVL_BASE.
static const int MAX_VEHICLE_PIXEL_Y = 96; ///< Maximum height of a vehicle in pixels in #ZOOM_LVL_BASE.
static const uint MAX_TILE_HEIGHT = 255; ///< Maximum allowed tile height
static const uint MIN_MAX_HEIGHTLEVEL = 15; ///< Lower bound of maximum allowed heightlevel (in the construction settings)
static const uint DEF_MAX_HEIGHTLEVEL = 30; ///< Default maximum allowed heightlevel (in the construction settings)
static const uint MAX_MAX_HEIGHTLEVEL = MAX_TILE_HEIGHT; ///< Upper bound of maximum allowed heightlevel (in the construction settings)
static const uint MIN_SNOWLINE_HEIGHT = 2; ///< Minimum snowline height
static const uint DEF_SNOWLINE_HEIGHT = 10; ///< Default snowline height
static const uint MAX_SNOWLINE_HEIGHT = (MAX_TILE_HEIGHT - 2); ///< Maximum allowed snowline height
/**
* The different types of tiles.
*
* Each tile belongs to one type, according whatever is build on it.
*
* @note A railway with a crossing street is marked as MP_ROAD.
*/
enum TileType {
MP_CLEAR, ///< A tile without any structures, i.e. grass, rocks, farm fields etc.
MP_RAILWAY, ///< A railway
MP_ROAD, ///< A tile with road (or tram tracks)
MP_HOUSE, ///< A house by a town
MP_TREES, ///< Tile got trees
MP_STATION, ///< A tile of a station
MP_WATER, ///< Water tile
MP_VOID, ///< Invisible tiles at the SW and SE border
MP_INDUSTRY, ///< Part of an industry
MP_TUNNELBRIDGE, ///< Tunnel entry/exit and bridge heads
MP_OBJECT, ///< Contains objects such as transmitters and owned land
};
/**
* Additional infos of a tile on a tropic game.
*
* The tropiczone is not modified during gameplay. It mainly affects tree growth. (desert tiles are visible though)
*
* In randomly generated maps:
* TROPICZONE_DESERT: Generated everywhere, if there is neither water nor mountains (TileHeight >= 4) in a certain distance from the tile.
* TROPICZONE_RAINFOREST: Generated everywhere, if there is no desert in a certain distance from the tile.
* TROPICZONE_NORMAL: Everywhere else, i.e. between desert and rainforest and on sea (if you clear the water).
*
* In scenarios:
* TROPICZONE_NORMAL: Default value.
* TROPICZONE_DESERT: Placed manually.
* TROPICZONE_RAINFOREST: Placed if you plant certain rainforest-trees.
*/
enum TropicZone {
TROPICZONE_NORMAL = 0, ///< Normal tropiczone
TROPICZONE_DESERT = 1, ///< Tile is desert
TROPICZONE_RAINFOREST = 2, ///< Rainforest tile
};
/**
* The index/ID of a Tile.
*/
typedef uint32 TileIndex;
/**
* The very nice invalid tile marker
*/
static const TileIndex INVALID_TILE = (TileIndex)-1;
#endif /* TILE_TYPE_H */
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