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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#ifndef MAPDIMENSIONS_H
#define MAPDIMENSIONS_H
#include <cassert>
#include "System/bitops.h"
#include "System/creg/creg_cond.h"
struct MapDimensions {
public:
CR_DECLARE_STRUCT(MapDimensions)
MapDimensions()
{
// set in SMFReadMap::ParseHeader
mapx = 0;
mapxm1 = 0;
mapxp1 = 0;
mapy = 0;
mapym1 = 0;
mapyp1 = 0;
hmapx = 0;
hmapy = 0;
pwr2mapx = 0;
pwr2mapy = 0;
mapSquares = 0;
}
void Initialize()
{
assert(mapx != 0);
assert(mapy != 0);
mapxm1 = mapx - 1;
mapxp1 = mapx + 1;
mapym1 = mapy - 1;
mapyp1 = mapy + 1;
hmapx = mapx >> 1;
hmapy = mapy >> 1;
pwr2mapx = next_power_of_2(mapx);
pwr2mapy = next_power_of_2(mapy);
mapSquares = mapx * mapy;
}
/**
* @brief map x
*
* The map's number of squares in the x direction
* (note that the number of vertices is one more)
*/
int mapx;
int mapxm1; // mapx minus one
int mapxp1; // mapx plus one
/**
* @brief map y
*
* The map's number of squares in the y direction
*/
int mapy;
int mapym1; // mapy minus one
int mapyp1; // mapy plus one
/**
* @brief half map x
*
* Contains half of the number of squares in the x direction
*/
int hmapx;
/**
* @brief half map y
*
* Contains half of the number of squares in the y direction
*/
int hmapy;
/**
* @brief map x power of 2
*
* Map's size in the x direction rounded
* up to the next power of 2
*/
int pwr2mapx;
/**
* @brief map y power of 2
*
* Map's size in the y direction rounded
* up to the next power of 2
*/
int pwr2mapy;
/**
* @brief map squares
*
* Total number of squares on the map
*/
int mapSquares;
};
#endif
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