/*
* This file is part of the AzerothCore Project. See AUTHORS file for Copyright information
*
* 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 2 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 .
*/
#ifndef GRID_TERRAIN_DATA_H
#define GRID_TERRAIN_DATA_H
#include "Common.h"
#include
#include
#include
#define MAX_HEIGHT 100000.0f // can be use for find ground height at surface
#define INVALID_HEIGHT -100000.0f // for check, must be equal to VMAP_INVALID_HEIGHT, real value for unknown height is VMAP_INVALID_HEIGHT_VALUE
#define MAX_FALL_DISTANCE 250000.0f // "unlimited fall" to find VMap ground if it is available, just larger than MAX_HEIGHT - INVALID_HEIGHT
#define MIN_HEIGHT -500.0f
#define MAP_LIQUID_STATUS_SWIMMING (LIQUID_MAP_IN_WATER | LIQUID_MAP_UNDER_WATER)
#define MAP_LIQUID_STATUS_IN_CONTACT (MAP_LIQUID_STATUS_SWIMMING | LIQUID_MAP_WATER_WALK)
#define MAP_LIQUID_TYPE_NO_WATER 0x00
#define MAP_LIQUID_TYPE_WATER 0x01
#define MAP_LIQUID_TYPE_OCEAN 0x02
#define MAP_LIQUID_TYPE_MAGMA 0x04
#define MAP_LIQUID_TYPE_SLIME 0x08
#define MAP_ALL_LIQUIDS (MAP_LIQUID_TYPE_WATER | MAP_LIQUID_TYPE_OCEAN | MAP_LIQUID_TYPE_MAGMA | MAP_LIQUID_TYPE_SLIME)
#define MAP_LIQUID_TYPE_DARK_WATER 0x10
// ******************************************
// Map file format defines
// ******************************************
union u_map_magic
{
char asChar[4];
uint32 asUInt;
};
const u_map_magic MapMagic = { {'M', 'A', 'P', 'S'} };
const uint32 MapVersionMagic = 9;
const u_map_magic MapAreaMagic = { {'A', 'R', 'E', 'A'} };
const u_map_magic MapHeightMagic = { {'M', 'H', 'G', 'T'} };
const u_map_magic MapLiquidMagic = { {'M', 'L', 'I', 'Q'} };
struct map_fileheader
{
uint32 mapMagic;
uint32 versionMagic;
uint32 buildMagic;
uint32 areaMapOffset;
uint32 areaMapSize;
uint32 heightMapOffset;
uint32 heightMapSize;
uint32 liquidMapOffset;
uint32 liquidMapSize;
uint32 holesOffset;
uint32 holesSize;
};
#define MAP_AREA_NO_AREA 0x0001
struct map_areaHeader
{
uint32 fourcc;
uint16 flags;
uint16 gridArea;
};
#define MAP_HEIGHT_NO_HEIGHT 0x0001
#define MAP_HEIGHT_AS_INT16 0x0002
#define MAP_HEIGHT_AS_INT8 0x0004
#define MAP_HEIGHT_HAS_FLIGHT_BOUNDS 0x0008
struct map_heightHeader
{
uint32 fourcc;
uint32 flags;
float gridHeight;
float gridMaxHeight;
};
#define MAP_LIQUID_NO_TYPE 0x0001
#define MAP_LIQUID_NO_HEIGHT 0x0002
struct map_liquidHeader
{
uint32 fourcc;
uint8 flags;
uint8 liquidFlags;
uint16 liquidType;
uint8 offsetX;
uint8 offsetY;
uint8 width;
uint8 height;
float liquidLevel;
};
// ******************************************
// Loaded map data structures
// ******************************************
struct LoadedAreaData
{
typedef std::array AreaMapType;
uint16 gridArea;
std::unique_ptr areaMap;
};
struct LoadedHeightData
{
typedef std::array HeightPlanesType;
struct Uint16HeightData
{
typedef std::array V9Type;
typedef std::array V8Type;
V9Type v9;
V8Type v8;
float gridIntHeightMultiplier;
};
struct Uint8HeightData
{
typedef std::array V9Type;
typedef std::array V8Type;
V9Type v9;
V8Type v8;
float gridIntHeightMultiplier;
};
struct FloatHeightData
{
typedef std::array V9Type;
typedef std::array V8Type;
V9Type v9;
V8Type v8;
};
float gridHeight;
std::unique_ptr uint16HeightData;
std::unique_ptr uint8HeightData;
std::unique_ptr floatHeightData;
std::unique_ptr minHeightPlanes;
};
struct LoadedLiquidData
{
typedef std::array LiquidEntryType;
typedef std::array LiquidFlagsType;
typedef std::vector LiquidMapType;
uint16 liquidGlobalEntry;
uint8 liquidGlobalFlags;
uint8 liquidOffX;
uint8 liquidOffY;
uint8 liquidWidth;
uint8 liquidHeight;
float liquidLevel;
std::unique_ptr liquidEntry;
std::unique_ptr liquidFlags;
std::unique_ptr liquidMap;
};
struct LoadedHoleData
{
typedef std::array HolesType;
HolesType holes;
};
enum LiquidStatus : uint32
{
LIQUID_MAP_NO_WATER = 0x00000000,
LIQUID_MAP_ABOVE_WATER = 0x00000001,
LIQUID_MAP_WATER_WALK = 0x00000002,
LIQUID_MAP_IN_WATER = 0x00000004,
LIQUID_MAP_UNDER_WATER = 0x00000008
};
struct LiquidData
{
LiquidData() = default;
uint32 Entry{ 0 };
uint32 Flags{ 0 };
float Level{ INVALID_HEIGHT };
float DepthLevel{ INVALID_HEIGHT };
LiquidStatus Status{ LIQUID_MAP_NO_WATER };
};
enum class TerrainMapDataReadResult
{
Success,
NotFound,
ReadError,
InvalidMagic,
InvalidAreaData,
InvalidHeightData,
InvalidLiquidData,
InvalidHoleData
};
class GridTerrainData
{
bool LoadAreaData(std::ifstream& fileStream, uint32 const offset);
bool LoadHeightData(std::ifstream& fileStream, uint32 const offset);
bool LoadLiquidData(std::ifstream& fileStream, uint32 const offset);
bool LoadHolesData(std::ifstream& fileStream, uint32 const offset);
std::unique_ptr _loadedAreaData;
std::unique_ptr _loadedHeightData;
std::unique_ptr _loadedLiquidData;
std::unique_ptr _loadedHoleData;
bool isHole(int row, int col) const;
// Get height functions and pointers
typedef float (GridTerrainData::* GetHeightPtr) (float x, float y) const;
GetHeightPtr _gridGetHeight;
float getHeightFromFloat(float x, float y) const;
float getHeightFromUint16(float x, float y) const;
float getHeightFromUint8(float x, float y) const;
float getHeightFromFlat(float x, float y) const;
public:
GridTerrainData();
~GridTerrainData() { };
TerrainMapDataReadResult Load(std::string const& mapFileName);
uint16 getArea(float x, float y) const;
inline float getHeight(float x, float y) const { return (this->*_gridGetHeight)(x, y); }
float getMinHeight(float x, float y) const;
float getLiquidLevel(float x, float y) const;
LiquidData const GetLiquidData(float x, float y, float z, float collisionHeight, Optional ReqLiquidType) const;
};
#endif